ES2177033T3 - Procedimiento mejorado para recuperar hidrogeno durante la produccion de acido tereftalico puro. - Google Patents

Procedimiento mejorado para recuperar hidrogeno durante la produccion de acido tereftalico puro.

Info

Publication number
ES2177033T3
ES2177033T3 ES98936840T ES98936840T ES2177033T3 ES 2177033 T3 ES2177033 T3 ES 2177033T3 ES 98936840 T ES98936840 T ES 98936840T ES 98936840 T ES98936840 T ES 98936840T ES 2177033 T3 ES2177033 T3 ES 2177033T3
Authority
ES
Spain
Prior art keywords
pure
during production
hydrogen during
improved procedure
recover hydrogen
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.)
Expired - Lifetime
Application number
ES98936840T
Other languages
English (en)
Inventor
David Parker
Fiona Mary Campbell
Andrew Harrison
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Application granted granted Critical
Publication of ES2177033T3 publication Critical patent/ES2177033T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Un procedimiento para recuperar y reciclar el exceso de hidrógeno de corrientes de purga de procesos en la producción de ácido terftálico de alta pureza, comprendiendo la hidrogenación catalítica de ácido tereftálico impuro, que típicamente contiene 4-carboxibenzaldehído (4-CBA), cuerpos coloreados y otras impurezas, en disolución en una fase líquida acuosa a una temperatura y presión elevadas.
ES98936840T 1997-07-16 1998-07-14 Procedimiento mejorado para recuperar hidrogeno durante la produccion de acido tereftalico puro. Expired - Lifetime ES2177033T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9714907.4A GB9714907D0 (en) 1997-07-16 1997-07-16 Production of aromatic carboxylic acids

Publications (1)

Publication Number Publication Date
ES2177033T3 true ES2177033T3 (es) 2002-12-01

Family

ID=10815897

Family Applications (1)

Application Number Title Priority Date Filing Date
ES98936840T Expired - Lifetime ES2177033T3 (es) 1997-07-16 1998-07-14 Procedimiento mejorado para recuperar hidrogeno durante la produccion de acido tereftalico puro.

Country Status (17)

Country Link
EP (1) EP1001926B1 (es)
KR (1) KR100514571B1 (es)
CN (1) CN1093114C (es)
AR (1) AR016352A1 (es)
AU (1) AU8569998A (es)
BR (1) BR9810707B1 (es)
CA (1) CA2291445C (es)
CO (1) CO5040110A1 (es)
DE (1) DE69806014T2 (es)
ES (1) ES2177033T3 (es)
GB (1) GB9714907D0 (es)
ID (1) ID24235A (es)
MY (1) MY150524A (es)
TR (1) TR200000080T2 (es)
TW (1) TW513404B (es)
WO (1) WO1999003812A1 (es)
ZA (1) ZA986325B (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100445352B1 (ko) * 1997-04-16 2004-11-03 주식회사 삼양사 테레프탈산제조공정에서발생하는폐기물에서고순도벤조산의회수방법
KR100650536B1 (ko) * 2003-12-19 2006-11-27 미쓰이 가가쿠 가부시키가이샤 테레프탈산의 제조 방법
CN101475462B (zh) * 2008-12-04 2012-01-04 谭伟业 一种回收精苯二甲酸工厂排放气流中氢气的方法
CN101624343B (zh) * 2009-08-13 2012-12-19 中国纺织工业设计院 精对苯二甲酸装置精制单元氢气回收方法及装置
CN102276448A (zh) * 2011-06-14 2011-12-14 逸盛大化石化有限公司 一种pta生产装置中氢气回收方法
CN103121946B (zh) * 2011-11-18 2015-02-11 中国石油化工股份有限公司 粗对苯二甲酸滤饼的洗涤方法
CN103121949B (zh) * 2011-11-18 2015-11-18 中国石油化工股份有限公司 粗对苯二甲酸加氢处理方法
CN103130184B (zh) * 2013-03-21 2015-09-30 大连凯信石化科技有限公司 一种pta装置精制单元泄放气综合利用的方法
CN108310909B (zh) * 2017-01-17 2020-06-19 四川天采科技有限责任公司 一种含co的精对苯二甲酸尾气变压吸附提取h2的方法
CN113412840A (zh) * 2021-03-22 2021-09-21 南通江山农药化工股份有限公司 一种除草组合物、制剂及其应用

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3584039A (en) * 1967-08-30 1971-06-08 Standard Oil Co Fiber-grade terephthalic acid by catalytic hydrogen treatment of dissolved impure terephthalic acid
US3639465A (en) * 1968-06-18 1972-02-01 Standard Oil Co Purification of aromatic polycarboxylic acids by catalytic reduction using prehumidified hydrogen
US5354898A (en) * 1993-06-17 1994-10-11 Amoco Corporation Method for purifying crude aromatic carboxylic acids

Also Published As

Publication number Publication date
TR200000080T2 (tr) 2000-05-22
CA2291445A1 (en) 1999-01-28
DE69806014T2 (de) 2003-01-30
AU8569998A (en) 1999-02-10
CN1264360A (zh) 2000-08-23
KR20010021918A (ko) 2001-03-15
WO1999003812A1 (en) 1999-01-28
ID24235A (id) 2000-07-13
GB9714907D0 (en) 1997-09-17
KR100514571B1 (ko) 2005-09-14
CN1093114C (zh) 2002-10-23
BR9810707A (pt) 2000-08-08
CO5040110A1 (es) 2001-05-29
ZA986325B (en) 2000-01-17
DE69806014D1 (de) 2002-07-18
AR016352A1 (es) 2001-07-04
BR9810707B1 (pt) 2009-05-05
EP1001926A1 (en) 2000-05-24
CA2291445C (en) 2007-02-20
EP1001926B1 (en) 2002-06-12
MY150524A (en) 2014-01-30
TW513404B (en) 2002-12-11

Similar Documents

Publication Publication Date Title
BR9911310A (pt) Processo para reduzir 4-carboxibenzaldeìdo (4-cba) na produção de ácido tereftálico (tpa) ou 3-carboxibenzaldeìdo (3-cba) na produção de ácido isoftálico
GB2286588A (en) Production method of high purity isomers of benzenedicarboxylic acids
EP0818434A3 (en) Process for the production of high-purity isophthalic acid
ES2177033T3 (es) Procedimiento mejorado para recuperar hidrogeno durante la produccion de acido tereftalico puro.
CA2178346A1 (en) Process for preparing aromatic carboxylic acids with efficient energy recovery
RU2005136662A (ru) Способ очистки сырой терефталевой кислоты в зоне последующего окисления путем введения водяного пара
MY121013A (en) Method for producing acrylic acid and methacrylic acid
BR9813606A (pt) Processo para produzir ácidos carboxìlicos aromáticos
MXPA02001652A (es) Proceso de recuperacion del catalizador de oxidacion en la elaboracion de acidos carboxilicos aromaticos.
FR2672049A1 (fr) Procede de fabrication de terephtalate de metal alcalin ou alcalino-terreux ou de l'acide terephilique de purete elevee.
JPS6393772A (ja) ガンマ−ブチロラクトンの製造方法
AR021744A1 (es) Metodo para recuperar acetato de metilo y acido acetico residual en la produccion de acido tereftalico puro.
CA2376814A1 (en) Ethylene recovery system
ES2194356T3 (es) Procedimiento para preparar gamma-butirolactona, butano-1,4-diol y tetrahidrofurano.
US5565609A (en) Method of purifying aromatic dicarboxylic acids
MX171684B (es) Procedimiento para preparar sal de acido mineral de ester metilico de aminoacidos
US4578501A (en) Preparation of terephthalic acid from a crude dimethyl terephthalate
CA1307538C (en) Method of producing 2-(2-hydroxyethoxy)-ethanol ester of flufenamic acid
HU212448B (en) Process for producing propionic acid derivatives
CO5040111A1 (es) Proceso mejorado para separar acido tereftalico puro
US7202380B2 (en) Production method of pyromellitic acid and pyromellitic anhydride
JPS63132850A (ja) 水蒸気ストリッピング方法
CN103130870B (zh) α-L-天冬氨酸-L-苯丙氨酸甲酯盐酸盐的制备方法
JP3267191B2 (ja) 芳香族ポリカルボン酸の精製方法
TW375607B (en) Process for the production of high-purity isophthalic acid