ZA986161B - Treatment of formaldehyde-containing mixtures - Google Patents

Treatment of formaldehyde-containing mixtures

Info

Publication number
ZA986161B
ZA986161B ZA986161A ZA986161A ZA986161B ZA 986161 B ZA986161 B ZA 986161B ZA 986161 A ZA986161 A ZA 986161A ZA 986161 A ZA986161 A ZA 986161A ZA 986161 B ZA986161 B ZA 986161B
Authority
ZA
South Africa
Prior art keywords
formaldehyde
liquid
stream
carboxylic acid
water
Prior art date
Application number
ZA986161A
Other languages
English (en)
Inventor
Stephen Patrick Harrison
William David Parten
John Stuart Martin
Original Assignee
Ici Plc
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
Application filed by Ici Plc filed Critical Ici Plc
Publication of ZA986161B publication Critical patent/ZA986161B/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
    • C07C67/333—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton
    • C07C67/343—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
    • C07C51/353—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by isomerisation; by change of size of the carbon skeleton
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/48—Separation; Purification; Stabilisation; Use of additives
    • C07C67/58—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)
ZA986161A 1997-07-11 1998-07-10 Treatment of formaldehyde-containing mixtures ZA986161B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9714540.3A GB9714540D0 (en) 1997-07-11 1997-07-11 Process for the production of methyl methacrylate

Publications (1)

Publication Number Publication Date
ZA986161B true ZA986161B (en) 1999-01-22

Family

ID=10815648

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA986161A ZA986161B (en) 1997-07-11 1998-07-10 Treatment of formaldehyde-containing mixtures

Country Status (21)

Country Link
US (1) US6384268B1 (es)
EP (1) EP0998443B1 (es)
JP (1) JP4246376B2 (es)
KR (1) KR100591625B1 (es)
CN (1) CN1111151C (es)
AT (1) ATE218532T1 (es)
AU (1) AU732866B2 (es)
BR (1) BR9810581B1 (es)
CA (1) CA2289482C (es)
CZ (1) CZ293845B6 (es)
DE (1) DE69805799T2 (es)
ES (1) ES2174455T3 (es)
GB (1) GB9714540D0 (es)
HU (1) HUP0003518A3 (es)
ID (1) ID22967A (es)
MY (1) MY121313A (es)
PL (1) PL195077B1 (es)
RU (1) RU2217413C2 (es)
TW (1) TW460448B (es)
WO (1) WO1999002480A1 (es)
ZA (1) ZA986161B (es)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0809332D0 (en) * 2008-05-22 2008-07-02 Lucite Int Uk Ltd Production of ethylenically unsaturated acids or esters thereof
JP5507111B2 (ja) * 2008-05-30 2014-05-28 ローム アンド ハース カンパニー 水性（メタ）アクリル酸の製造方法
KR101821380B1 (ko) * 2008-12-18 2018-03-08 루사이트 인터내셔널 유케이 리미티드 메틸 메타크릴레이트의 정제 방법
GB201011092D0 (en) * 2010-07-01 2010-08-18 Lucite Int Uk Ltd A catalyst system and a process for the production of ethylenically unsaturated carboxylic acids or esters
TWI487695B (zh) * 2011-10-07 2015-06-11 Purification of methyl methacrylate
US9120743B2 (en) * 2013-06-27 2015-09-01 Celanese International Corporation Integrated process for the production of acrylic acids and acrylates
CN106699560B (zh) * 2015-11-18 2020-08-14 上海浦景化工技术股份有限公司 一种含甲基丙烯酸甲酯的物流的分离设备与分离方法
GB201621985D0 (en) * 2016-12-22 2017-02-08 Johnson Matthey Davy Technologies Ltd Process
CN108129315B (zh) * 2017-12-19 2020-10-02 万华化学集团股份有限公司 一种从含有羧酸酯的物流中脱除甲醛和甲醇的方法及应用
CN111574374B (zh) * 2020-06-22 2022-08-23 北京旭阳科技有限公司 一种甲基丙烯酸甲酯粗产品的分离方法及分离设备
CN112409178A (zh) * 2020-11-25 2021-02-26 西南化工研究设计院有限公司 一种以醋酸甲酯为原料制备甲基丙烯酸甲酯的方法
CN112457193B (zh) * 2020-11-25 2022-05-17 西南化工研究设计院有限公司 一种以醋酸甲酯为原料制备丙酸甲酯的方法
CN112374989B (zh) * 2020-11-25 2022-05-17 西南化工研究设计院有限公司 一种含甲醛和甲醇混合物的分离方法
CN114292186A (zh) * 2022-01-14 2022-04-08 万华化学集团股份有限公司 一种高纯度mma的制备方法
KR102662265B1 (ko) 2022-04-06 2024-04-30 애경케미칼주식회사 암모니아 및 자일렌을 이용한 아미노-포름알데하이드 수지 잔류 포름알데하이드의 고효율 제거방법

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1107234A (en) * 1965-10-22 1968-03-27 Air Reduction Production of acrylate and methacrylate esters
US3440276A (en) * 1965-12-29 1969-04-22 Commercial Solvents Corp Process for preparing acrylic esters

Also Published As

Publication number Publication date
TW460448B (en) 2001-10-21
AU732866B2 (en) 2001-05-03
CN1111151C (zh) 2003-06-11
BR9810581B1 (pt) 2009-08-11
ES2174455T3 (es) 2002-11-01
GB9714540D0 (en) 1997-09-17
KR20010021642A (ko) 2001-03-15
EP0998443B1 (en) 2002-06-05
ID22967A (id) 1999-12-23
ATE218532T1 (de) 2002-06-15
US6384268B1 (en) 2002-05-07
EP0998443A1 (en) 2000-05-10
CN1260777A (zh) 2000-07-19
DE69805799D1 (de) 2002-07-11
DE69805799T2 (de) 2003-01-02
WO1999002480A1 (en) 1999-01-21
JP2001509498A (ja) 2001-07-24
BR9810581A (pt) 2000-09-19
CA2289482C (en) 2007-02-20
CZ200037A3 (cs) 2000-05-17
AU8234398A (en) 1999-02-08
HUP0003518A2 (hu) 2001-02-28
PL195077B1 (pl) 2007-08-31
CZ293845B6 (cs) 2004-08-18
RU2217413C2 (ru) 2003-11-27
JP4246376B2 (ja) 2009-04-02
PL337969A1 (en) 2000-09-11
HUP0003518A3 (en) 2003-07-28
CA2289482A1 (en) 1999-01-21
MY121313A (en) 2006-01-28
KR100591625B1 (ko) 2006-06-21

Similar Documents

Publication Publication Date Title
ZA986161B (en) Treatment of formaldehyde-containing mixtures
ATE169895T1 (de) Verfahren zur behandlung eines flüssigen stickstoffreichen abfallprodukts,nach diesem verfahren hergestellte düngemittellösung sowie seine herstellung
DE69929998D1 (de) Verfahren zur herstellung von estern
ATE157344T1 (de) Extraktion von zitronensäuren
WO1999050221A3 (de) Verfahren zur herstellung von (meth)acrylsäure und (meth)acrylsäureestern
ATE236891T1 (de) Verfahren zur extraktion von paclitaxel in hoher ausbeute aus paclitaxel enthaltendem material
DE59401321D1 (de) Verfahren zur Gewinnung von pharmakologisch wirksamen Verbindungen aus komplexen Stoffgemischen
RU2000103219A (ru) Обработка формальдегидсодержащих смесей
DE69415345D1 (de) Verfahren zur herstellung von bisnoraldehyden aus bisnoralkohol
KR960041182A (ko) 클라불란산염의 제조 방법
IL146083A0 (en) Solvent extraction process
DE602004013572D1 (de) Pharmazeutische zusammensetzung und verfahren zur behandlung und prävention von prostatahyperplasie und prostatitis unter verwendung von früchten von roystonea regia (königspalme)
ATE325797T1 (de) Verfahren zur herstellung von hochreinem triethylendiamin
ATE504656T1 (de) Enzymatisches verfahren und verfahren zur enzymatischen herstellung von optisch aktivem cyanhidrin
MY134064A (en) Process for removing water from aqueous methanol
EP1284256A4 (en) METHOD FOR THE PRODUCTION OF HIGH-PURITY ALKYLADAMANTYL ESTERS
KR960000848A (ko) 알파, 베타- 불포화 카르복시산 에스테르에서 카르보닐 불순물을 제거하는 방법
DE50111115D1 (de) Verfahren und vorrichtung zur auftrennung eines stoffgemisches in seine bestandteile durch extraktivdestillation in einer trennwandkolonne
ATE15052T1 (de) Verfahren zur herstellung von alpha-aspartylphenylalamin methylester.
DE58909404D1 (de) Verfahren zur biokatalytischen herstellung sclecht Wasserlöslicher Substanzen mit integrierter extraktiver Aufarbeitung.
TH12373A (es)
ATE94528T1 (de) Verfahren zur gewinnung von durch gaerung erhaltene normal-buttersaeure.
JPS55148735A (en) Indium recovering method
ATE273947T1 (de) Verfahren zur reduktion des 3-dimethylamino-2- phenylpropionsäure- ethylester-gehalts in lösungen von 2-dimethylamino -1-phenyl -3- cyclohexen-1-carbonsäureethylester
CA2108265A1 (en) Methods and compositions for isolating taxanes