CA991656A - Purification process for aromatic acids - Google Patents

Purification process for aromatic acids

Info

Publication number
CA991656A
CA991656A CA168,334A CA168334A CA991656A CA 991656 A CA991656 A CA 991656A CA 168334 A CA168334 A CA 168334A CA 991656 A CA991656 A CA 991656A
Authority
CA
Canada
Prior art keywords
purification process
aromatic acids
aromatic
acids
purification
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
Application number
CA168,334A
Other languages
English (en)
Other versions
CA168334S (en
Inventor
Richard V. Norton
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.)
Sun Research and Development Co
Original Assignee
Sun Research and Development 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 Sun Research and Development Co filed Critical Sun Research and Development Co
Application granted granted Critical
Publication of CA991656A publication Critical patent/CA991656A/en
Expired 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
    • C07C51/48—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
CA168,334A 1972-06-19 1973-04-10 Purification process for aromatic acids Expired CA991656A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00263809A US3847977A (en) 1972-06-19 1972-06-19 Purification process for aromatic acids

Publications (1)

Publication Number Publication Date
CA991656A true CA991656A (en) 1976-06-22

Family

ID=23003307

Family Applications (1)

Application Number Title Priority Date Filing Date
CA168,334A Expired CA991656A (en) 1972-06-19 1973-04-10 Purification process for aromatic acids

Country Status (9)

Country Link
US (1) US3847977A (it)
JP (1) JPS5632977B2 (it)
BE (1) BE801069A (it)
CA (1) CA991656A (it)
DE (1) DE2331251C2 (it)
FR (1) FR2189364B1 (it)
GB (1) GB1386582A (it)
IT (1) IT987750B (it)
NL (1) NL184779C (it)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6216060A (ja) * 1985-07-10 1987-01-24 Hitachi Kiden Kogyo Ltd リニアステツプモ−タ
JPS6447260A (en) * 1987-08-15 1989-02-21 Shinko Electric Co Ltd Linear dc brushless motor
US6376223B1 (en) * 1999-08-04 2002-04-23 Cognis Corporation Process for purifying polycarboxylic acids
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
KR101144887B1 (ko) * 2009-12-16 2012-05-14 호남석유화학 주식회사 이소프탈산의 정제 방법

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD54353A (it) *
US3717674A (en) * 1968-02-15 1973-02-20 Celanese Corp Thermal purification of terephthalic acid using a carboxylic acid-c8 aromatic solvent

Also Published As

Publication number Publication date
GB1386582A (en) 1975-03-12
DE2331251A1 (de) 1974-01-24
NL184779B (nl) 1989-06-01
FR2189364B1 (it) 1978-09-29
DE2331251C2 (de) 1983-04-07
JPS5632977B2 (it) 1981-07-31
IT987750B (it) 1975-03-20
FR2189364A1 (it) 1974-01-25
NL184779C (nl) 1989-11-01
BE801069A (fr) 1973-12-18
NL7308481A (it) 1973-12-21
US3847977A (en) 1974-11-12
JPS4949931A (it) 1974-05-15

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