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RU2000125746A - METHOD FOR OBTAINING POLYESTERPOLIOLS WITH LOW SMELL - Google Patents

METHOD FOR OBTAINING POLYESTERPOLIOLS WITH LOW SMELL

Info

Publication number
RU2000125746A
RU2000125746A RU2000125746/04A RU2000125746A RU2000125746A RU 2000125746 A RU2000125746 A RU 2000125746A RU 2000125746/04 A RU2000125746/04 A RU 2000125746/04A RU 2000125746 A RU2000125746 A RU 2000125746A RU 2000125746 A RU2000125746 A RU 2000125746A
Authority
RU
Russia
Prior art keywords
stage
polyether polyol
acid
paragraphs
steps
Prior art date
Application number
RU2000125746/04A
Other languages
Russian (ru)
Other versions
RU2219192C2 (en
Inventor
Хенрикус Мария Йоханнес БРОНС
ВОС Ханс ДЕ
Original Assignee
Шелл Интернэшнл Рисерч Маатсхаппий Б.В.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from IS4687A external-priority patent/IS4687A/en
Application filed by Шелл Интернэшнл Рисерч Маатсхаппий Б.В. filed Critical Шелл Интернэшнл Рисерч Маатсхаппий Б.В.
Publication of RU2000125746A publication Critical patent/RU2000125746A/en
Application granted granted Critical
Publication of RU2219192C2 publication Critical patent/RU2219192C2/en

Links

Claims (6)

1. Способ получения полиэфирполиола со слабым запахом из ненейтралиэованного полиэфирполиольного исходного вещества, которое получают в результате реакции исходного соединения, имеющего множество активных атомов водорода, с одним или более алкиленоксидами, причем этот способ включает стадии:
a) контактирования ненейтрализованного полиэфирполиольного продукта с избытком кислоты, имеющей рКа меньше 5, при температуре 80-130oС,
b) контактирования реакционной смеси с водой при температуре 80-130oС, и
c) извлечения полиэфирполиола со слабым запахом,
где кислоту добавляют на стадии (а) в таком избытке, чтобы придать реакционной среде кислотность, достаточную для протекания реакции гидролиза на стадиях (а) и (b).1. A method of producing a low odor polyether polyol from a non-neutral polyether polyol starting material that is obtained by reacting a starting compound having a plurality of active hydrogen atoms with one or more alkylene oxides, this method comprising the steps of
a) contacting the non-neutralized polyether polyol product with an excess of acid having a pKa less than 5 at a temperature of 80-130 o C,
b) contacting the reaction mixture with water at a temperature of 80-130 o C, and
c) extraction of low odor polyether polyol,
where the acid is added at stage (a) in such an excess as to give the reaction medium an acidity sufficient for the hydrolysis reaction to take place at stages (a) and (b). 2. Способ по п. 1, где стадии (а) и (b) проводят одновременно. 2. The method according to claim 1, wherein the steps (a) and (b) are carried out simultaneously. 3. Способ по п. 1, где стадии (а) и (b) проводят последовательно. 3. The method according to claim 1, wherein the steps (a) and (b) are carried out sequentially. 4. Способ по любому одному из пп. 1-3, где кислотой, используемой на стадии (а), является фосфорная кислота и/или пара-толуолсульфоновая кислота. 4. The method according to any one of paragraphs. 1-3, where the acid used in stage (a) is phosphoric acid and / or para-toluenesulfonic acid. 5. Способ по любому одному из пп. 1-4, где на стадии (b) добавляют такое количество воды, что образуется двухфазная система. 5. The method according to any one of paragraphs. 1-4, where in stage (b) add the amount of water that forms a two-phase system. 6. Способ по любому одному из пп. 1-4, где на стадии (b) добавляют такое количество воды, что образуется однофазная система. 6. The method according to any one of paragraphs. 1-4, where in stage (b) add the amount of water that forms a single-phase system.
RU2000125746/04A 1998-03-13 1999-03-11 Method for production of polyether-polyols with weak smell RU2219192C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IS4687A IS4687A (en) 1998-03-13 1998-03-13 Process for the production of odorless polyether polyols
IS4687 1998-03-13

Publications (2)

Publication Number Publication Date
RU2000125746A true RU2000125746A (en) 2002-11-10
RU2219192C2 RU2219192C2 (en) 2003-12-20

Family

ID=36699816

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2000125746/04A RU2219192C2 (en) 1998-03-13 1999-03-11 Method for production of polyether-polyols with weak smell

Country Status (14)

Country Link
US (1) US6504062B2 (en)
EP (1) EP1062263B1 (en)
JP (1) JP2002506898A (en)
KR (1) KR100593218B1 (en)
CN (1) CN1117791C (en)
AU (1) AU740752B2 (en)
BR (1) BR9908738A (en)
DE (1) DE69920414T2 (en)
ES (1) ES2229690T3 (en)
ID (1) ID25642A (en)
IS (1) IS4687A (en)
RU (1) RU2219192C2 (en)
WO (1) WO1999047582A1 (en)
ZA (1) ZA991977B (en)

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ES2199666B1 (en) 2002-02-25 2005-06-01 Repsol Quimica, S.A. POLYOLETER PRODUCTION PROCEDURE.
JP4303516B2 (en) * 2003-04-28 2009-07-29 三洋化成工業株式会社 Method for treating alkylene oxide adduct
DE10324998A1 (en) * 2003-06-03 2004-12-23 Basf Ag Production of polyether alcohols using DMC catalysis
US20080033214A1 (en) * 2004-06-09 2008-02-07 Duijghuisen Henricus Petrus B Process of Preparing Odour-Lean Polyether Polyol
CN1329428C (en) * 2004-12-07 2007-08-01 上海工程技术大学 Method of removing micro C1-C7 low carbon component in polyether poly hydric alcohol
CN1320029C (en) * 2005-05-31 2007-06-06 抚顺佳化聚氨酯有限公司 Method for preparing polyether glycol
US7495063B2 (en) * 2006-02-03 2009-02-24 Dow Global Technologies Inc. Reduced oligomer concentration in high purity polyalkylene glycols
JP2009286963A (en) * 2008-05-30 2009-12-10 Sanyo Chem Ind Ltd Method for manufacturing polyoxyalkylene alcohol
JP2010077417A (en) * 2008-08-26 2010-04-08 Sanyo Chem Ind Ltd Method for producing polyoxyalkylene alcohol
DE102009002371A1 (en) 2009-04-15 2010-10-21 Evonik Goldschmidt Gmbh Process for the preparation of odorless polyether alcohols by means of DMC catalysts and their use in cosmetic and / or dermatological preparations
EP2443173A1 (en) 2009-06-18 2012-04-25 Huntsman International LLC A process for neutralizing an unneutralised polyether polyol
RU2560724C2 (en) * 2009-07-29 2015-08-20 Басф Се Method of producing polyether alcohols from alkylene oxides
ES2581205T3 (en) * 2009-09-29 2016-09-02 Dow Global Technologies Llc Single column for drying procedure extraction
EP2669312A1 (en) 2012-05-29 2013-12-04 Huntsman International Llc Process for the production of polyether polyols
JP5763734B2 (en) * 2012-11-30 2015-08-12 三洋化成工業株式会社 Method for producing polyoxyalkylene monool or polyol
CN105026366A (en) * 2012-12-07 2015-11-04 国际壳牌研究有限公司 Process for preparing alkoxylated alcohols
EP3083757B2 (en) * 2013-12-18 2023-08-23 Covestro Intellectual Property GmbH & Co. KG Method for the treatment of alkaline polyether polyols
WO2018128155A1 (en) 2017-01-06 2018-07-12 三洋化成工業株式会社 Polyether polyol production method and polyurethane foam production method
CN108341942B (en) * 2017-01-22 2020-05-26 山东蓝星东大化工有限责任公司 Refining method of polyether polyol for alkali metal catalytic synthesis
ES2956435T3 (en) 2019-08-01 2023-12-21 Dow Global Technologies Llc Process to purify polyether polyols
CN110885439B (en) * 2019-11-22 2022-03-04 山东蓝星东大有限公司 Method for reducing content of volatile organic compounds in polyether polyol
FR3111901B1 (en) 2020-06-30 2023-02-17 Arkema France IMPROVED ALCOXYLATION PROCESS
CN114602536B (en) * 2020-12-03 2023-07-11 万华化学集团股份有限公司 Preparation method of catalyst and method for reducing VOC content in polyether polyol

Family Cites Families (8)

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JPS5770124A (en) * 1980-10-20 1982-04-30 Dai Ichi Kogyo Seiyaku Co Ltd Purification of polyether-polyol
DE3229216A1 (en) * 1982-08-05 1984-02-09 Basf Ag, 6700 Ludwigshafen METHOD FOR CLEANING RAW POLYETHER POLYOLS
US5095061A (en) * 1990-07-13 1992-03-10 The Dow Chemical Company Process to reduce propenyl polyethers in hydroxyfunctional polyethers
ES2058048T3 (en) * 1992-03-24 1999-06-16 Dow Chemical Co NEW FINISHING PROCEDURE FOR HYDROXY-FUNCTIONAL POLYETERS.
KR0145350B1 (en) * 1993-09-07 1998-07-15 사또오 아키오 Process for preparing polyoxyalkylene polyol
RU2080564C1 (en) * 1994-11-25 1997-05-27 Центральный научно-исследовательский и проектно-конструкторский институт робототехники и технической кибернетики Servo level gauge
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