DE197308C - - Google Patents

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Publication number
DE197308C
DE197308C DENDAT197308D DE197308DA DE197308C DE 197308 C DE197308 C DE 197308C DE NDAT197308 D DENDAT197308 D DE NDAT197308D DE 197308D A DE197308D A DE 197308DA DE 197308 C DE197308 C DE 197308C
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percent
acid
hydrochloric acid
glycerine
dichlorohydrin
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DENDAT197308D
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/62Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by introduction of halogen; by substitution of halogen atoms by other halogen atoms

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

- JVH97308 KLASSE 12 o. GRUPPE- JVH97308 CLASS 12 or GROUP

Patentiert im Deutschen Reiche vom 20. November 1906 ab.Patented in the German Empire on November 20, 1906.

Es wurde gefunden, daß sich die Bildung von Monochlorhydrin und Dichlorhydrin aus Glycerin und gasförmiger Salzsäure mit guter Ausbeute und bei verhältnismäßig niederer Temperatur vollzieht, wenn man dem Glycerin geringe Mengen (etwa ι bis 2 Prozent) einer organischen Carbonsäure, wie Essigsäure, Propionsäure, Ameisensäure, Bernsteinsäure, Azelainsäure, Zimtsäure, Phenylessigsäure usw.,It has been found that the formation of monochlorohydrin and dichlorohydrin from Glycerine and gaseous hydrochloric acid with a good yield and a relatively low one Temperature takes place when you add small amounts (about ι to 2 percent) of the glycerine organic carboxylic acid, such as acetic acid, propionic acid, formic acid, succinic acid, Azelaic acid, cinnamic acid, phenylacetic acid, etc.,

ίο als Katalysator zusetzt. Die gasförmige Salzsäure wird unter diesen Umständen sehr rasch vom Glycerin aufgenommen; destilliert man, nachdem die entsprechende Gewichtszunahme erreicht ist, im Vakuum, so erhält man je nach der angewandten Salzsäuremenge Mono- oder Dichlorhydrin in guter Ausbeute (bis 85 Prozent der Theorie). Derartige hohe Ausbeuten sind nach dem bisher bekannten Verfahren aus Glycerin und gasförmiger Salzsäure (Berthelot, Ann. chim. phys. 41, 296) nicht im entferntesten zu erreichen, abgesehen davon, daß die Berthelotsche Methode ein längeres Erhitzen des salzsäurehaltigen Glycerins auf hohe Temperaturen erfordert.ίο clogs as a catalyst. The gaseous hydrochloric acid is very quickly absorbed by the glycerine under these circumstances; one distills, after the corresponding increase in weight has been achieved, in a vacuum, one obtains ever depending on the amount of hydrochloric acid used, mono- or dichlorohydrin in good yield (up to 85 percent of theory). Such high yields are according to what is known to date Process from glycerine and gaseous hydrochloric acid (Berthelot, Ann. Chim. Phys. 41, 296) not even remotely achievable, apart from the fact that Berthelotsche Method involves heating the glycerine, which contains hydrochloric acid, to high temperatures for a longer period of time requires.

Zur Darstellung von Dichlorhydrin aus Glycerin und Salzsäure hat Reboul (Ann.' chim. phys. 3. Serie, Bd. 60, 18) bereits Eisessig zugesetzt; er verwendet aber die Essigsäure als Verdünnungsmittel und schreibt infolgedessen ein Teil Eisessig auf ein Teil Glycerin vor. Abgesehen davon, daß bei dem Reboul sehen Verfahren im Vergleich zu dem vorliegenden sehr große Mengen Eisessig verbraucht werden, hat jene Methode noch den Nachteil, daß sie nur mäßige Ausbeuten und ein schwer zu reinigendes Produkt erzielt, indem Nebenreaktionen störend auftreten (Hübner und Müller, Ann. 159, 170).For the preparation of dichlorohydrin from glycerine and hydrochloric acid, Reboul (Ann. ' chim. phys. 3rd series, Vol. 60, 18) glacial acetic acid already added; but he uses acetic acid as a diluent and therefore prescribes one part glacial acetic acid to one part glycerine. Apart from the fact that Reboul see procedures in comparison That method has that method because very large amounts of glacial acetic acid are consumed at hand nor the disadvantage that they have only moderate yields and a product that is difficult to clean achieved by undesirable side reactions (Hübner and Müller, Ann. 159, 170).

Als besonderer Vorteil des neuen Verfahrens ist noch hervorzuheben, daß es auf demselben Wege und mit derselben Apparatur lediglich durch Variation der Salzsäuremenge die Darstellung sowohl von Monochlorhydrin wie von Dichlorhydrin gestattet.As a particular advantage of the new process should be emphasized that it is based on the same Ways and with the same apparatus, only by varying the amount of hydrochloric acid, the preparation of both monochlorohydrin as permitted by dichlorohydrin.

Beispiele:Examples:

1. In I kg Glycerin (spez. Gew. 1,25), dem 20 g Eisessig hinzugefügt sind, wird bei einer Temperatur von 95 ° trockenes Salzsäuregas eingeleitet. Nachdem eine Gewichtszunahme von 460 g erreicht ist, entsprechend etwas mehr als I Mol. Salzsäure, wird die Reaktionsflüssigkeit bei einem Druck von 15 bis 20 mm der Destillation unterworfen, wobei von 135 bis 165 ° Monochlorhydrin übergeht in einer Menge von 840 g = 85 Prozent der theoretischen Ausbeute. Der Vorlauf enthält 43 g Dichlorhydrin, der Destillations- rückstand besteht aus unverändertem Glycerin. Es ist nicht unbedingt erforderlich, bei 95 ° zu arbeiten. Die Reaktion verläuft auch schon bei wesentlich niedrigeren Temperaturen (bis hinunter zu 20°) mit guter Ausbeute, erfordert aber dann natürlich mehr Zeit.1. In 1 kg of glycerol (specific weight 1.25), the 20 g of glacial acetic acid are added, dry hydrochloric acid gas is produced at a temperature of 95 ° initiated. After a weight gain of 460 g has been reached, something accordingly more than 1 mole of hydrochloric acid, the reaction liquid becomes at a pressure of 15 to 20 mm subjected to distillation, whereby from 135 to 165 ° monochlorohydrin passes into an amount of 840 g = 85 percent of the theoretical yield. The forerun contains 43 g of dichlorohydrin, the distillation The residue consists of unchanged glycerine. It is not absolutely necessary at 95 ° to work. The reaction takes place even at much lower temperatures (down to 20 °) with good yield, but then of course requires more time.

2. In eine Lösung von 20 g Propionsäure und ι kg Glycerin (spez. Gew. 1,26) wird2. In a solution of 20 g of propionic acid and ι kg of glycerol (specific weight 1.26) is

unter Erwärmen auf dem Dampfbade trockene Salzsäure eingeleitet. Nach kurzer Zeit ist eine Gewichtszunahme von 375 g erreicht, worauf bei 9 bis 10 mm Druck die Vakuumdestillation vorgenommen wird. Bei 114 bis 1150 gehen 163 g Monochlorhydrin über (= 74 Prozent der Theorie), im Rückstand bleiben 47 g unverändertes Glycerin.introduced dry hydrochloric acid while warming on the steam bath. After a short time an increase in weight of 375 g is reached, whereupon the vacuum distillation is carried out at 9 to 10 mm pressure. At 114 to 115 0 , 163 g of monochlorohydrin pass over (= 74 percent of theory), 47 g of unchanged glycerol remain in the residue.

Auf ähnliche Weise erhält man bei Zusatz von 2 Prozent Bernsteinsäure Ausbeuten von 72 Prozent der Theorie an Monochlorhydrin, bei Zusatz von 2 Prozent Azelainsäure 71 Prozent Monochlorhydrin, bei Zusatz von 2 Prozent Zimtsäure 67 Prozent Monochlorhydrin usw.Similarly, the addition of 2 percent succinic acid gives yields of 72 percent of the theory of monochlorohydrin, with the addition of 2 percent azelaic acid 71 percent monochlorohydrin, with the addition of 2 percent cinnamic acid 67 percent Monochlorohydrin, etc.

3. ι kg Glycerin, dem 20 g Eisessig zugesetzt wird, wird auf dem Dampf bade erwärmt und ein lebhafter Strom von trockener Salzsäure eingeleitet. Nachdem eine Gewichtszunahme von 825 g (etwa 2 Mol. H Cl) erreicht ist, wird im Vakuum bei 25 mm Druck fraktioniert. Unter 70 ° geht ein Gemisch von wäßriger Salzsäure, Essigsäure und einem Teile des gebildeten Dichlorhydrins über, woraus das letztere durch Neutralisation abgeschieden werden kann; bei 83 bis 88° destilliert dann die Hauptmenge des Dichlorhydrins, zwischen 120 bis 1650 geht etwas Monochlorhydrin über, während als Rückstand unverändertes Glycerin verbleibt. Es werden so erhalten 1,053 kg Dichlorhydrin (== 84 Prozent der Theorie), 132 g Monochlorhydrin (= 11 Prozent der Theorie), während 50 g Glycerin (= 5 Prozent) zurückgewonnen werden. ,3. ι kg of glycerol, to which 20 g of glacial acetic acid is added, is heated on the steam bath and a brisk stream of dry hydrochloric acid is initiated. After a weight increase of 825 g (about 2 mol. H Cl) has been reached, fractionation is carried out in vacuo at 25 mm pressure. Below 70 °, a mixture of aqueous hydrochloric acid, acetic acid and part of the dichlorohydrin formed passes over, from which the latter can be separated off by neutralization; at 83 then something monochlorohydrin distilled to 88 °, the major amount of the dichlorohydrin, between 120-165 0 proceeds, while as a residue remains unchanged glycerol. This gives 1.053 kg of dichlorohydrin (== 84 percent of theory), 132 g of monochlorohydrin (= 11 percent of theory), while 50 g of glycerol (= 5 percent) are recovered. ,

Der Zusatz der Carbonsäure kann auch wesentlich über 2 Prozent der Glycerinmenge erhöht werden, aber nicht über 30 Prozent, da von hier ab die Nebenreaktionen infolge Beteiligung der Carbonsäure an der Reaktion so störend sind, daß das Verfahren unrentabel wird. The addition of the carboxylic acid can also be significantly more than 2 percent of the amount of glycerine be increased, but not more than 30 percent, since from here on the side reactions result Participation of the carboxylic acid in the reaction are so disruptive that the process becomes unprofitable.

Claims (1)

Patent-Anspruch:Patent claim: Verfahren zur Darstellung von Mono- und Dichlorhydrin aus Glycerin und gasförmiger Salzsäure, dadurch gekennzeichnet, daß man dem Glycerin eine organische Carbonsäure in einer Menge von weniger als 30 Prozent der Glycerinmenge zusetzt.Process for the preparation of mono- and dichlorohydrin from glycerol and gaseous Hydrochloric acid, characterized in that the glycerol is an organic carboxylic acid in an amount of less than 30 percent of the amount of glycerine added.
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Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE955233C (en) * 1954-02-19 1957-01-03 Degussa Process for the preparation of pentaerythritol trichlorohydrin
EP0296341A2 (en) * 1987-06-25 1988-12-28 Deutsche Solvay-Werke Gmbh Process for the preparation of polyglycerines
WO2005054167A1 (en) * 2003-11-20 2005-06-16 Solvay (Société Anonyme) Process for producing dichloropropanol from glycerol, the glycerol coming eventually from the conversion of animal fats in the manufacture of biodiesel
WO2006020234A1 (en) * 2004-07-21 2006-02-23 Dow Global Technologies Inc. Conversion of a multihydroxylated-aliphatic hydrocarbon or ester thereof to a chlorohydrin
WO2006111810A2 (en) 2005-04-18 2006-10-26 Aser S.R.L. Process for the production of alpha, gamma-dichlorohydrin from glycerin and hydrochloric acid
JP2007504101A (en) * 2003-09-01 2007-03-01 スポレク プロ ケミコー ア フツニ ビロブ アクシオバ スポレクノスト Method for preparing dichloropropanol from glycerin
EP1760060A1 (en) 2003-11-20 2007-03-07 SOLVAY (Société Anonyme) Process for producing dichloropropanol from glycerol
WO2009066327A1 (en) 2007-11-19 2009-05-28 Conser S.P.A. Conversion of glycerine to dichlorohydrins and epichlorohydrin
US7557253B2 (en) 2005-05-20 2009-07-07 Solvay (Societe Anonyme) Method for converting polyhydroxylated aliphatic hydrocarbons into chlorohydrins
DE102008007622A1 (en) 2008-02-04 2009-08-06 Biopetrol Industries Ag Process for the preparation of epichlorohydrin from glycerol
WO2009126414A1 (en) 2008-04-09 2009-10-15 Dow Global Technologies Inc. Process and apparatus for efficient recovery of dichlorohydrins
WO2009126415A1 (en) 2008-04-09 2009-10-15 Dow Global Technologies Inc. Multi-stage process and apparatus for recovering dichlorohydrins
ITMI20081535A1 (en) * 2008-08-26 2010-02-26 Biocompany Srl PROCESS FOR THE PREPARATION OF 1,3-DICHLORO-2-PROPANOL
WO2010106085A1 (en) 2009-03-20 2010-09-23 Akzo Nobel N.V. Process for the catalytic halogenation of a diol
US7930651B2 (en) 2007-01-18 2011-04-19 Research In Motion Limited Agenda display in an electronic device
US7939696B2 (en) 2005-11-08 2011-05-10 Solvay Societe Anonyme Process for the manufacture of dichloropropanol by chlorination of glycerol
WO2011092270A2 (en) 2010-02-01 2011-08-04 Akzo Nobel Chemicals International B.V. Process for preparing epichlorohydrin from dichlorohydrin
US8124814B2 (en) 2006-06-14 2012-02-28 Solvay (Societe Anonyme) Crude glycerol-based product, process for its purification and its use in the manufacture of dichloropropanol
US8197665B2 (en) 2007-06-12 2012-06-12 Solvay (Societe Anonyme) Aqueous composition containing a salt, manufacturing process and use
US8236975B2 (en) 2004-07-21 2012-08-07 Dow Global Technologies Llc Process for the conversion of a crude glycerol, crude mixtures of naturally derived multicomponent aliphatic hydrocarbons or esters thereof to a chlorohydrin
US8258350B2 (en) 2007-03-07 2012-09-04 Solvay (Societe Anonyme) Process for the manufacture of dichloropropanol
US8273923B2 (en) 2007-06-01 2012-09-25 Solvay (Societe Anonyme) Process for manufacturing a chlorohydrin
US8298500B2 (en) 2008-02-26 2012-10-30 Dow Global Technologies Llc Process and apparatus for producing and purifying epichlorohydrins
US8304563B2 (en) 2004-07-21 2012-11-06 Dow Global Technologies Llc Batch, semi-continuous or continuous hydrochlorination of glycerin with reduced volatile chlorinated hydrocarbon by-products and chloroacetone levels
US8314205B2 (en) 2007-12-17 2012-11-20 Solvay (Societe Anonyme) Glycerol-based product, process for obtaining same and use thereof in the manufacturing of dichloropropanol
US8378130B2 (en) 2007-06-12 2013-02-19 Solvay (Societe Anonyme) Product containing epichlorohydrin, its preparation and its use in various applications
US8420870B2 (en) 2007-04-12 2013-04-16 Dow Global Technologies Llc Process and apparatus for recovery of dichlorohydrins via codistillation
US8471074B2 (en) 2007-03-14 2013-06-25 Solvay (Societe Anonyme) Process for the manufacture of dichloropropanol
US8507643B2 (en) 2008-04-03 2013-08-13 Solvay S.A. Composition comprising glycerol, process for obtaining same and use thereof in the manufacture of dichloropropanol
US8536381B2 (en) 2008-09-12 2013-09-17 Solvay Sa Process for purifying hydrogen chloride
US8541632B2 (en) 2007-04-12 2013-09-24 Dow Global Technologies Llc Process and apparatus for producing chlorohydrin
WO2013175498A2 (en) * 2012-04-18 2013-11-28 Sunil Subhash Bhagwat A novel amido-amine and glycerol based compound and its process of preparation
US8629305B2 (en) 2007-04-12 2014-01-14 Dow Global Technologies Inc Process and apparatus for azeotropic recovery of dichlorohydrins
US8664453B2 (en) 2007-04-12 2014-03-04 Dow Global Technologies Inc. Multi-stage process and apparatus for recovering dichlorohydrins
US8715568B2 (en) 2007-10-02 2014-05-06 Solvay Sa Use of compositions containing silicon for improving the corrosion resistance of vessels
US8795536B2 (en) 2008-01-31 2014-08-05 Solvay (Societe Anonyme) Process for degrading organic substances in an aqueous composition
CN101654396B (en) * 2004-07-21 2014-09-24 陶氏环球技术有限责任公司 Conversion of a multihydroxylated-aliphatic hydrocarbon or ester thereof to a chlorohydrin
US9309209B2 (en) 2010-09-30 2016-04-12 Solvay Sa Derivative of epichlorohydrin of natural origin

Cited By (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE955233C (en) * 1954-02-19 1957-01-03 Degussa Process for the preparation of pentaerythritol trichlorohydrin
EP0296341A2 (en) * 1987-06-25 1988-12-28 Deutsche Solvay-Werke Gmbh Process for the preparation of polyglycerines
EP0296341A3 (en) * 1987-06-25 1990-06-13 Deutsche Solvay-Werke Gmbh Process for the preparation of polyglycerines
JP2007504101A (en) * 2003-09-01 2007-03-01 スポレク プロ ケミコー ア フツニ ビロブ アクシオバ スポレクノスト Method for preparing dichloropropanol from glycerin
JP2013006875A (en) * 2003-09-01 2013-01-10 Spolek Pro Chemickou A Hutni Vyrobu Akciova Spolecnost Method for preparing dichloropropanol from glycerine
JP2013006876A (en) * 2003-09-01 2013-01-10 Spolek Pro Chemickou A Hutni Vyrobu Akciova Spolecnost Method for preparing dichloropropanol from glycerine
KR100927924B1 (en) * 2003-11-20 2009-11-19 솔베이(소시에떼아노님) Process for producing an organic compound
EP1772446A1 (en) * 2003-11-20 2007-04-11 SOLVAY (Société Anonyme) Process for producing organic compounds from glycerol , the glycerol coming from renewable raw material
EP1752435A1 (en) * 2003-11-20 2007-02-14 SOLVAY (Société Anonyme) Process for producing dichloropropanol from glycerol , the glycerol coming eventualy from the manufacture of biodiesel
WO2005054167A1 (en) * 2003-11-20 2005-06-16 Solvay (Société Anonyme) Process for producing dichloropropanol from glycerol, the glycerol coming eventually from the conversion of animal fats in the manufacture of biodiesel
EP1760060A1 (en) 2003-11-20 2007-03-07 SOLVAY (Société Anonyme) Process for producing dichloropropanol from glycerol
EP1770081A1 (en) * 2003-11-20 2007-04-04 SOLVAY (Société Anonyme) Process for producing dichloropropanol from glycerol , the glycerol coming eventualy from the conversion of animal fats in the manufacture of biodiesel
JP2012176961A (en) * 2003-11-20 2012-09-13 Solvay (Sa) Method for producing dichloropropanol from glycerol wherein the glycerol comes eventually from conversion of animal fat in manufacture of biodiesel
EP1775278A1 (en) * 2003-11-20 2007-04-18 SOLVAY (Société Anonyme) Process for producing epoxy resins
JP2007284447A (en) * 2003-11-20 2007-11-01 Solvay (Sa) Method for producing dichloropropanol from glycerol which is finally formed by conversion of animal fat in producing biodiesel
EA010337B1 (en) * 2003-11-20 2008-08-29 Солвей (Сосьете Аноним) Process for producing dichloropropanol
JP2009007349A (en) * 2003-11-20 2009-01-15 Solvay (Sa) Method for producing dichloropropanol from glycerol wherein the glycerol comes eventually from conversion of animal fat in biodiesel production
EP2053035A1 (en) * 2003-11-20 2009-04-29 SOLVAY (Société Anonyme) Process for producing dichloropropanol
EP2053034A1 (en) * 2003-11-20 2009-04-29 SOLVAY (Société Anonyme) Process for producing a chlorohydrin
US9663427B2 (en) 2003-11-20 2017-05-30 Solvay (Société Anonyme) Process for producing epichlorohydrin
JP2012017340A (en) * 2003-11-20 2012-01-26 Solvay (Sa) Process for producing dichloropropanol from glycerol, the glycerol coming eventually from the conversion of animal fats in the manufacture of biodiesel
CN1982269B (en) * 2003-11-20 2011-03-16 索尔维公司 Process for producing organic compound
KR100913626B1 (en) * 2003-11-20 2009-08-24 솔베이(소시에떼아노님) Process for producing a chlorinated organic compound
EP2253609A1 (en) * 2003-11-20 2010-11-24 SOLVAY (Société Anonyme) Process for producing organic compounds from glycerol, the glycerol coming from renewable raw material
EA012736B1 (en) * 2003-11-20 2009-12-30 Солвей (Сосьете Аноним) Process for producing epichlorohydrin and epoxy resins
EP1752436A1 (en) * 2003-11-20 2007-02-14 SOLVAY (Société Anonyme) Pseudo-azeotropic composition containing dichloropropanol and process for producing such composition
KR100917808B1 (en) * 2003-11-20 2009-09-18 솔베이(소시에떼아노님) Process for producing an organic compound
US20090270588A1 (en) * 2003-11-20 2009-10-29 Solvay (Societe Anonyme) Process for producing dichloropropanol
US8236975B2 (en) 2004-07-21 2012-08-07 Dow Global Technologies Llc Process for the conversion of a crude glycerol, crude mixtures of naturally derived multicomponent aliphatic hydrocarbons or esters thereof to a chlorohydrin
CN101654396B (en) * 2004-07-21 2014-09-24 陶氏环球技术有限责任公司 Conversion of a multihydroxylated-aliphatic hydrocarbon or ester thereof to a chlorohydrin
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EP2181979A1 (en) 2004-07-21 2010-05-05 Dow Global Technologies Inc. Conversion of a multihydroxylated aliphatic hydrocarbon or ester thereof to a chlorohydrin
US8304563B2 (en) 2004-07-21 2012-11-06 Dow Global Technologies Llc Batch, semi-continuous or continuous hydrochlorination of glycerin with reduced volatile chlorinated hydrocarbon by-products and chloroacetone levels
CN102516205B (en) * 2004-07-21 2016-05-04 兰科知识产权有限责任公司 Multihydroxylated-aliphatic hydrocarbon or its ester are to the conversion of chloropharin
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CN102516205A (en) * 2004-07-21 2012-06-27 陶氏环球技术有限责任公司 Conversion of a multihydroxylated-aliphatic hydrocarbon or ester thereof to a chlorohydrin
WO2006020234A1 (en) * 2004-07-21 2006-02-23 Dow Global Technologies Inc. Conversion of a multihydroxylated-aliphatic hydrocarbon or ester thereof to a chlorohydrin
WO2006111810A3 (en) * 2005-04-18 2006-11-30 Aser S R L Process for the production of alpha, gamma-dichlorohydrin from glycerin and hydrochloric acid
WO2006111810A2 (en) 2005-04-18 2006-10-26 Aser S.R.L. Process for the production of alpha, gamma-dichlorohydrin from glycerin and hydrochloric acid
CN101184715B (en) * 2005-04-18 2012-07-04 欧洲化学工程有限公司 Process for the production of alpha, gamma-dichlorohydrin from glycerin and hydrochloric acid
US7893193B2 (en) 2005-05-20 2011-02-22 Solvay (Société Anonyme) Method for making a chlorohydrin
US7906691B2 (en) 2005-05-20 2011-03-15 Solvay (Societe Anonyme) Method for making chlorohydrin in corrosion-resistant equipment
EP2284162B1 (en) * 2005-05-20 2016-11-02 Solvay Sa Process for producing dichloropropanol
US7557253B2 (en) 2005-05-20 2009-07-07 Solvay (Societe Anonyme) Method for converting polyhydroxylated aliphatic hydrocarbons into chlorohydrins
US7615670B2 (en) 2005-05-20 2009-11-10 Solvay (Société Anonyme) Method for making chlorohydrin in liquid phase in the presence of heavy compounds
US7906692B2 (en) 2005-05-20 2011-03-15 Solvay (Societe Anonyme) Method for making a chlorohydrin by chlorinating a polyhydroxylated aliphatic hydrocarbon
US7939696B2 (en) 2005-11-08 2011-05-10 Solvay Societe Anonyme Process for the manufacture of dichloropropanol by chlorination of glycerol
US8106246B2 (en) 2005-11-08 2012-01-31 Solvay (Societe Anonyme) Process for the manufacture of dichloropropanol by chlorination of glycerol
US8124814B2 (en) 2006-06-14 2012-02-28 Solvay (Societe Anonyme) Crude glycerol-based product, process for its purification and its use in the manufacture of dichloropropanol
US7930651B2 (en) 2007-01-18 2011-04-19 Research In Motion Limited Agenda display in an electronic device
US8258350B2 (en) 2007-03-07 2012-09-04 Solvay (Societe Anonyme) Process for the manufacture of dichloropropanol
US8471074B2 (en) 2007-03-14 2013-06-25 Solvay (Societe Anonyme) Process for the manufacture of dichloropropanol
US8420870B2 (en) 2007-04-12 2013-04-16 Dow Global Technologies Llc Process and apparatus for recovery of dichlorohydrins via codistillation
US8629305B2 (en) 2007-04-12 2014-01-14 Dow Global Technologies Inc Process and apparatus for azeotropic recovery of dichlorohydrins
US8541632B2 (en) 2007-04-12 2013-09-24 Dow Global Technologies Llc Process and apparatus for producing chlorohydrin
US8664453B2 (en) 2007-04-12 2014-03-04 Dow Global Technologies Inc. Multi-stage process and apparatus for recovering dichlorohydrins
US8273923B2 (en) 2007-06-01 2012-09-25 Solvay (Societe Anonyme) Process for manufacturing a chlorohydrin
US8378130B2 (en) 2007-06-12 2013-02-19 Solvay (Societe Anonyme) Product containing epichlorohydrin, its preparation and its use in various applications
US8399692B2 (en) 2007-06-12 2013-03-19 Solvay (Societe Anonyme) Epichlorohydrin, manufacturing process and use
US8197665B2 (en) 2007-06-12 2012-06-12 Solvay (Societe Anonyme) Aqueous composition containing a salt, manufacturing process and use
US8715568B2 (en) 2007-10-02 2014-05-06 Solvay Sa Use of compositions containing silicon for improving the corrosion resistance of vessels
WO2009066327A1 (en) 2007-11-19 2009-05-28 Conser S.P.A. Conversion of glycerine to dichlorohydrins and epichlorohydrin
US8314205B2 (en) 2007-12-17 2012-11-20 Solvay (Societe Anonyme) Glycerol-based product, process for obtaining same and use thereof in the manufacturing of dichloropropanol
US8795536B2 (en) 2008-01-31 2014-08-05 Solvay (Societe Anonyme) Process for degrading organic substances in an aqueous composition
DE102008007622A1 (en) 2008-02-04 2009-08-06 Biopetrol Industries Ag Process for the preparation of epichlorohydrin from glycerol
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