DK125171B - Fremgangsmåde til rensning af aromatiske polycarboxylsyrer. - Google Patents

Fremgangsmåde til rensning af aromatiske polycarboxylsyrer.

Info

Publication number
DK125171B
DK125171B DK251766A DK251766A DK125171B DK 125171 B DK125171 B DK 125171B DK 251766 A DK251766 A DK 251766A DK 251766 A DK251766 A DK 251766A DK 125171 B DK125171 B DK 125171B
Authority
DK
Denmark
Prior art keywords
purification
polycarboxylic acids
aromatic polycarboxylic
aromatic
acids
Prior art date
Application number
DK251766A
Other languages
Danish (da)
English (en)
Inventor
G Olsen
P Towle
R Baldwin
Original Assignee
Standard Oil 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 Standard Oil Co filed Critical Standard Oil Co
Publication of DK125171B publication Critical patent/DK125171B/da

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
    • C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DK251766A 1965-05-17 1966-05-17 Fremgangsmåde til rensning af aromatiske polycarboxylsyrer. DK125171B (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US45621965A 1965-05-17 1965-05-17

Publications (1)

Publication Number Publication Date
DK125171B true DK125171B (da) 1973-01-08

Family

ID=23811931

Family Applications (1)

Application Number Title Priority Date Filing Date
DK251766A DK125171B (da) 1965-05-17 1966-05-17 Fremgangsmåde til rensning af aromatiske polycarboxylsyrer.

Country Status (9)

Country Link
JP (1) JPS5138698B1 (hr)
AT (1) AT290507B (hr)
BE (1) BE681180A (hr)
CH (1) CH457397A (hr)
DE (1) DE1593540A1 (hr)
DK (1) DK125171B (hr)
ES (1) ES326853A1 (hr)
GB (1) GB1152575A (hr)
SE (1) SE350966B (hr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2893860B2 (ja) * 1990-05-17 1999-05-24 三菱瓦斯化学株式会社 高純度イソフタル酸の製造法
GB9104776D0 (en) * 1991-03-07 1991-04-17 Ici Plc Process for the production of terephthalic acid
US5449820A (en) * 1994-03-15 1995-09-12 Mitsubishi Chemical Corporation Method of preparing high purity 2,6-naphthalene dicarboxylic acid
US7485747B2 (en) 2001-06-04 2009-02-03 Eastman Chemical Company Two stage oxidation process for the production of aromatic dicarboxylic acids
US7196215B2 (en) 2001-06-04 2007-03-27 Eastman Chemical Company Process for the production of purified terephthalic acid
US20040215036A1 (en) 2003-04-25 2004-10-28 Robert Lin Method for heating a crude carboxylic acid slurry in a post oxidation zone by the addition of steam
US7420082B2 (en) 2006-03-01 2008-09-02 Eastman Chemical Company Polycarboxylic acid production system employing hot liquor removal downstream of oxidative digestion
US7326807B2 (en) 2006-03-01 2008-02-05 Eastman Chemical Company Polycarboxylic acid production system with enhanced heating for oxidative digestion
US7393973B2 (en) 2006-03-01 2008-07-01 Eastman Chemical Company Polycarboxylic acid production system with enhanced residence time distribution for oxidative digestion
US7501537B2 (en) 2006-03-01 2009-03-10 Eastman Chemical Company Polycarboxylic acid production system employing oxidative digestion with reduced or eliminated upstream liquor exchange
US20070208194A1 (en) 2006-03-01 2007-09-06 Woodruff Thomas E Oxidation system with sidedraw secondary reactor
US7326808B2 (en) 2006-03-01 2008-02-05 Eastman Chemical Company Polycarboxylic acid production system employing cooled mother liquor from oxidative digestion as feed to impurity purge system
US7772424B2 (en) 2006-03-01 2010-08-10 Eastman Chemical Company Polycarboxylic acid production system employing enhanced evaporative concentration downstream of oxidative digestion
US7816556B2 (en) 2006-03-01 2010-10-19 Eastman Chemical Company Polycarboxylic acid production system employing enhanced multistage oxidative digestion
EP2017254B1 (en) * 2006-05-08 2014-08-13 Mitsubishi Gas Chemical Company, Inc. Method of crystallization
CN103288632A (zh) * 2013-06-19 2013-09-11 中国石油化工股份有限公司 一种粗均苯三甲酸精制的方法
CN113105056A (zh) * 2021-04-14 2021-07-13 新疆中泰创新技术研究院有限责任公司 精对苯二甲酸废水资源化利用的方法

Also Published As

Publication number Publication date
CH457397A (fr) 1968-06-15
BE681180A (hr) 1966-10-31
ES326853A1 (es) 1967-03-16
SE350966B (hr) 1972-11-13
JPS5138698B1 (hr) 1976-10-23
AT290507B (de) 1971-06-11
DE1593540A1 (de) 1970-10-22
GB1152575A (en) 1969-05-21

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