CH395958A - Process for the purification of phthalic acids, in particular terephthalic acid - Google Patents

Process for the purification of phthalic acids, in particular terephthalic acid

Info

Publication number
CH395958A
CH395958A CH352260A CH352260A CH395958A CH 395958 A CH395958 A CH 395958A CH 352260 A CH352260 A CH 352260A CH 352260 A CH352260 A CH 352260A CH 395958 A CH395958 A CH 395958A
Authority
CH
Switzerland
Prior art keywords
purification
terephthalic acid
phthalic acids
particular terephthalic
phthalic
Prior art date
Application number
CH352260A
Other languages
French (fr)
Original Assignee
Monsanto Chemicals
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 Monsanto Chemicals filed Critical Monsanto Chemicals
Publication of CH395958A publication Critical patent/CH395958A/en

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)
  • Polyesters Or Polycarbonates (AREA)
CH352260A 1959-04-06 1960-03-29 Process for the purification of phthalic acids, in particular terephthalic acid CH395958A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80410459A 1959-04-06 1959-04-06

Publications (1)

Publication Number Publication Date
CH395958A true CH395958A (en) 1965-07-31

Family

ID=25188192

Family Applications (1)

Application Number Title Priority Date Filing Date
CH352260A CH395958A (en) 1959-04-06 1960-03-29 Process for the purification of phthalic acids, in particular terephthalic acid

Country Status (4)

Country Link
CH (1) CH395958A (en)
DE (1) DE1140922B (en)
GB (1) GB881460A (en)
NL (1) NL250177A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1050312A (en) * 1964-05-13
US6013835A (en) 1995-06-07 2000-01-11 Hfm International, Inc. Method and apparatus for preparing purified terephthalic acid
US5767311A (en) 1995-06-07 1998-06-16 Glitsch International, Inc. Method and apparatus for preparing purified terephtalic acid
US5929274A (en) 1995-06-07 1999-07-27 Hfm International, Inc. Method to reduce carboxybenzaldehyde isomers in terephthalic acid or isophthalic acid
US6054610A (en) 1995-06-07 2000-04-25 Hfm International, Inc. Method and apparatus for preparing purified terephthalic acid and isophthalic acid from mixed xylenes

Also Published As

Publication number Publication date
NL250177A (en)
DE1140922B (en) 1962-12-13
GB881460A (en) 1961-11-01

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