NL275610A - - Google Patents

Info

Publication number
NL275610A
NL275610A NL275610DA NL275610A NL 275610 A NL275610 A NL 275610A NL 275610D A NL275610D A NL 275610DA NL 275610 A NL275610 A NL 275610A
Authority
NL
Netherlands
Application number
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.)
Publication of NL275610A publication Critical patent/NL275610A/xx
Priority claimed from US95273A external-priority patent/US3359283A/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
    • C07C51/54—Preparation of carboxylic acid anhydrides
    • C07C51/56—Preparation of carboxylic acid anhydrides from organic acids, their salts, their esters or their halides, e.g. by carboxylation
    • 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
    • C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
    • 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)
  • 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)
NL275610D 1961-03-06 NL275610A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US93633A US3180878A (en) 1961-03-06 1961-03-06 Separation of adipic acid, glutaric acid and succinic acid from mother liquors obtained in the manufacture of adipic acid
US95273A US3359283A (en) 1961-03-13 1961-03-13 Recovery of dicarboxylic acid anhydrides from aqueous acid solution

Publications (1)

Publication Number Publication Date
NL275610A true NL275610A (ko)

Family

ID=26787753

Family Applications (1)

Application Number Title Priority Date Filing Date
NL275610D NL275610A (ko) 1961-03-06

Country Status (7)

Country Link
US (1) US3180878A (ko)
BE (1) BE614720A (ko)
CH (1) CH450381A (ko)
DE (1) DE1443557A1 (ko)
GB (1) GB1004131A (ko)
NL (1) NL275610A (ko)
SE (1) SE311895B (ko)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3329712A (en) * 1962-11-07 1967-07-04 Monsanto Co Separation of dibasic acids
DE1272913B (de) * 1963-06-26 1968-07-18 Basf Ag Verfahren zur Trennung von Bernsteinsaeure, Glutarsaeure und Adipinsaeure durch Destillation
GB1197921A (en) * 1967-02-22 1970-07-08 Ici Ltd Process for the Purification of Mixtures of Dibasic Carboxylic Acids
DE2860871D1 (en) * 1977-12-19 1981-10-29 Ici Plc Process for the purification of alkane dicarboxylic acids having at least 4 carbon atoms
US6013835A (en) 1995-06-07 2000-01-11 Hfm International, Inc. Method and apparatus for preparing purified terephthalic 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

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE547079A (ko) * 1955-04-20
US3036127A (en) * 1957-12-24 1962-05-22 Texaco Inc Succinic acid and anhydride separation process
US2971010A (en) * 1958-06-26 1961-02-07 Du Pont Production of dicarboxylic acid anhydrides

Also Published As

Publication number Publication date
DE1443557A1 (de) 1968-10-17
SE311895B (ko) 1969-06-30
GB1004131A (en) 1965-09-08
CH450381A (de) 1968-01-31
BE614720A (fr) 1962-09-06
US3180878A (en) 1965-04-27

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