DE197308C - - Google Patents
Info
- 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
- Authority
- DE
- Germany
- Prior art keywords
- percent
- acid
- hydrochloric acid
- glycerine
- dichlorohydrin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- PEDCQBHIVMGVHV-UHFFFAOYSA-N glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 34
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 25
- 235000011187 glycerol Nutrition 0.000 claims description 18
- SSZWWUDQMAHNAQ-UHFFFAOYSA-N 3-MCPD Chemical compound OCC(O)CCl SSZWWUDQMAHNAQ-UHFFFAOYSA-N 0.000 claims description 11
- DEWLEGDTCGBNGU-UHFFFAOYSA-N 1,3-dichloropropan-2-ol Chemical compound ClCC(O)CCl DEWLEGDTCGBNGU-UHFFFAOYSA-N 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 3
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 14
- 229960000583 Acetic Acid Drugs 0.000 description 8
- XBDQKXXYIPTUBI-UHFFFAOYSA-N propionic acid Chemical compound CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 6
- 239000012362 glacial acetic acid Substances 0.000 description 5
- WBYWAXJHAXSJNI-VOTSOKGWSA-M .beta-Phenylacrylic acid Natural products [O-]C(=O)\C=C\C1=CC=CC=C1 WBYWAXJHAXSJNI-VOTSOKGWSA-M 0.000 description 4
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 4
- 150000001735 carboxylic acids Chemical class 0.000 description 3
- BDAGIHXWWSANSR-UHFFFAOYSA-N formic acid Chemical compound OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 3
- BDJRBEYXGGNYIS-UHFFFAOYSA-N Azelaic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229930016911 cinnamic acid Natural products 0.000 description 2
- 235000013985 cinnamic acid Nutrition 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 235000019260 propionic acid Nutrition 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- 239000001384 succinic acid Substances 0.000 description 2
- SJSYJHLLBBSLIH-SDNWHVSQSA-N (E)-3-(2-methoxyphenyl)-2-phenylprop-2-enoic acid Chemical compound COC1=CC=CC=C1\C=C(\C(O)=O)C1=CC=CC=C1 SJSYJHLLBBSLIH-SDNWHVSQSA-N 0.000 description 1
- WLJVXDMOQOGPHL-UHFFFAOYSA-N Phenylacetic acid Natural products OC(=O)CC1=CC=CC=C1 WLJVXDMOQOGPHL-UHFFFAOYSA-N 0.000 description 1
- 235000011054 acetic acid Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000005591 charge neutralization Effects 0.000 description 1
- 239000012295 chemical reaction liquid Substances 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001264 neutralization Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229960003424 phenylacetic acid Drugs 0.000 description 1
- 239000003279 phenylacetic acid Substances 0.000 description 1
- 235000011044 succinic acid Nutrition 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 230000004584 weight gain Effects 0.000 description 1
- 235000019786 weight gain Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/62—Preparation 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
Landscapes
- 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
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.
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.
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Cited By (38)
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 |
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0
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Cited By (80)
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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 |
JP2013006876A (en) * | 2003-09-01 | 2013-01-10 | Spolek Pro Chemickou A Hutni Vyrobu Akciova Spolecnost | Method for preparing dichloropropanol from glycerine |
JP2013006875A (en) * | 2003-09-01 | 2013-01-10 | Spolek Pro Chemickou A Hutni Vyrobu Akciova Spolecnost | Method for preparing dichloropropanol from glycerine |
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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 |
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EP1752436A1 (en) * | 2003-11-20 | 2007-02-14 | SOLVAY (Société Anonyme) | Pseudo-azeotropic composition containing dichloropropanol and process for producing such composition |
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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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