Title:
METHOD FOR PRODUCTION OF DICHLOROPROPANOLS FROM GLYCEROL
Document Type and Number:
WIPO Patent Application WO/2012/096585
Kind Code:
A3
Abstract:
Method for production of dichloropropanols from glycerol using continuous method, in the presence of acetic acid as a catalyst, with the catalyst concentration in the reacting mass varying in the range of 0.0005 to 0.007 mol/L, and the process of hydrochlorina¬ tion is carried out in the temperature range from 80 to 160°C, consists in the fact that hydrochlorination of glycerol is carried out in two stages, while in the first stage, glycer¬ ol is subjected to wet hydrochlorination using hydrochloric acid contained in the stream of acidic dichloropropanols, then the post-reaction mass from the first stage of hydro¬ chlorination is directed to a reactive column, in which completing the reaction of resi¬ dues of dissolved hydrogen chloride is carried out, as well as separation of the post- reaction mixture to stream of diluted dichloropropanols and decoction stream, which is directed to the second stage of dry hydrochlorination under pressure with gaseous hy¬ drogen chloride; after the second stage of hydrochlorination, the post-reaction mixture is directed to a distillation column, in which dewatering is carried out, while the distillate from the distillation column is directed to the first stage of glycerol hydrochlorination as a stream of acidic dichloropropanols, and the decoction being a stream of concentrated dichloropropanols is subjected to rectification.
Inventors:
SPADLO MARIAN (PL)
SEMRAU PIOTR (PL)
GOZDZIKIEWICZ MARCIN (PL)
RUCZYNSKI LECH (PL)
BRZEZICKI ANDRZEJ (PL)
KIELKIEWICZ DAMIAN (PL)
IWANSKI LECH (PL)
KRASNIK TADEUSZ (PL)
KRZYZANOWSKI SYLWESTER (PL)
KIELKOWSKI GRZEGORZ (PL)
KOZIEL MAREK (PL)
KOZIEL TADEUSZ (PL)
SZCZEPANIAK ROBERT (PL)
REMIEZOWICZ ERYK (PL)
SARNOWSKI RYSZARD (PL)
SEMRAU PIOTR (PL)
GOZDZIKIEWICZ MARCIN (PL)
RUCZYNSKI LECH (PL)
BRZEZICKI ANDRZEJ (PL)
KIELKIEWICZ DAMIAN (PL)
IWANSKI LECH (PL)
KRASNIK TADEUSZ (PL)
KRZYZANOWSKI SYLWESTER (PL)
KIELKOWSKI GRZEGORZ (PL)
KOZIEL MAREK (PL)
KOZIEL TADEUSZ (PL)
SZCZEPANIAK ROBERT (PL)
REMIEZOWICZ ERYK (PL)
SARNOWSKI RYSZARD (PL)
Application Number:
PCT/PL2012/000001
Publication Date:
November 08, 2012
Filing Date:
January 04, 2012
Export Citation:
Assignee:
ZAKLADY CHEMICZNE ZACHEM SPOLKA AKCYJNA (PL)
INST CIEZKIEJ SYNTEZY ORGA (PL)
SPADLO MARIAN (PL)
SEMRAU PIOTR (PL)
GOZDZIKIEWICZ MARCIN (PL)
RUCZYNSKI LECH (PL)
BRZEZICKI ANDRZEJ (PL)
KIELKIEWICZ DAMIAN (PL)
IWANSKI LECH (PL)
KRASNIK TADEUSZ (PL)
KRZYZANOWSKI SYLWESTER (PL)
KIELKOWSKI GRZEGORZ (PL)
KOZIEL MAREK (PL)
KOZIEL TADEUSZ (PL)
SZCZEPANIAK ROBERT (PL)
REMIEZOWICZ ERYK (PL)
SARNOWSKI RYSZARD (PL)
INST CIEZKIEJ SYNTEZY ORGA (PL)
SPADLO MARIAN (PL)
SEMRAU PIOTR (PL)
GOZDZIKIEWICZ MARCIN (PL)
RUCZYNSKI LECH (PL)
BRZEZICKI ANDRZEJ (PL)
KIELKIEWICZ DAMIAN (PL)
IWANSKI LECH (PL)
KRASNIK TADEUSZ (PL)
KRZYZANOWSKI SYLWESTER (PL)
KIELKOWSKI GRZEGORZ (PL)
KOZIEL MAREK (PL)
KOZIEL TADEUSZ (PL)
SZCZEPANIAK ROBERT (PL)
REMIEZOWICZ ERYK (PL)
SARNOWSKI RYSZARD (PL)
International Classes:
C07C29/62; C07C31/36
Domestic Patent References:
WO2009002585A1 | 2008-12-31 | |||
WO2006106154A1 | 2006-10-12 | |||
WO2010076914A1 | 2010-07-08 | |||
WO2009104961A2 | 2009-08-27 | |||
WO2005054167A1 | 2005-06-16 |
Foreign References:
TW200925143A | 2009-06-16 | |||
JPH0374342A | 1991-03-28 | |||
FR2868419A1 | 2005-10-07 | |||
PL210903B1 | 2012-03-30 |
Attorney, Agent or Firm:
RZĄŻEWSKA, Dorota (ul. Żurawia 47/49, Warszawa, PL)
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