IL24531A - METHOD FOR PURIFICING TERPETIC ACID - Google Patents

METHOD FOR PURIFICING TERPETIC ACID

Info

Publication number
IL24531A
IL24531A IL24531A IL2453165A IL24531A IL 24531 A IL24531 A IL 24531A IL 24531 A IL24531 A IL 24531A IL 2453165 A IL2453165 A IL 2453165A IL 24531 A IL24531 A IL 24531A
Authority
IL
Israel
Prior art keywords
terephthalic acid
ketone
process according
acid
contaminated
Prior art date
Application number
IL24531A
Other languages
English (en)
Hebrew (he)
Original Assignee
Allied Chem
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 Allied Chem filed Critical Allied Chem
Publication of IL24531A publication Critical patent/IL24531A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/12Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/16Dicarboxylic acids and dihydroxy compounds
    • C08G63/18Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
    • C08G63/181Acids containing aromatic rings
    • C08G63/183Terephthalic acids
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42Separation; Purification; Stabilisation; Use of additives
    • C07C51/487Separation; 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)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
IL24531A 1964-10-29 1965-10-27 METHOD FOR PURIFICING TERPETIC ACID IL24531A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US40751864A 1964-10-29 1964-10-29

Publications (1)

Publication Number Publication Date
IL24531A true IL24531A (en) 1969-07-30

Family

ID=23612409

Family Applications (1)

Application Number Title Priority Date Filing Date
IL24531A IL24531A (en) 1964-10-29 1965-10-27 METHOD FOR PURIFICING TERPETIC ACID

Country Status (7)

Country Link
BE (1) BE671513A (enrdf_load_html_response)
CH (1) CH456567A (enrdf_load_html_response)
DE (1) DE1292139B (enrdf_load_html_response)
FR (1) FR1451797A (enrdf_load_html_response)
GB (1) GB1069856A (enrdf_load_html_response)
IL (1) IL24531A (enrdf_load_html_response)
NL (1) NL6513937A (enrdf_load_html_response)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE971483C (de) * 1953-10-10 1959-02-05 Hoechst Ag Verfahren zur Reinigung von p-toluylsaeurehaltiger Terephthalsaeure
DE1099521B (de) * 1956-04-11 1961-02-16 Olin Mathieson Verfahren zur Abtrennung von Iso- und Terephthalsaeure aus einem isomere Phthalsaeuren enthaltenden Gemisch
DE1092899B (de) * 1956-08-22 1960-11-17 Union Rheinische Braunkohlen Verfahren zur Reinigung von Terephthalsaeure sowie deren monomeren und polymeren Estern
DE1089746B (de) * 1957-06-28 1960-09-29 Ici Ltd Verfahren zur Reinigung von Terephthalsaeure
DE1061771B (de) * 1958-03-26 1959-07-23 Basf Ag Verfahren zur Reinigung von roher Terephthalsaeure
US3080421A (en) * 1958-11-18 1963-03-05 Purification of temephthalic agio
DE1135885B (de) * 1960-01-30 1962-09-06 Basf Ag Verfahren zur Reinigung von roher Terephthalsaeure
DE1112059B (de) * 1960-01-30 1961-08-03 Basf Ag Verfahren zur Reinigung von roher Terephthalsaeure
DE1126855B (de) * 1960-09-10 1962-04-05 Basf Ag Verfahren zur Reinigung roher Terephthalsaeure
DE1136999B (de) * 1961-06-10 1962-09-27 Basf Ag Verfahren zur Gewinnung von reiner Terephthalsaeure

Also Published As

Publication number Publication date
CH456567A (de) 1968-07-31
DE1292139B (de) 1969-04-10
FR1451797A (fr) 1966-01-07
BE671513A (enrdf_load_html_response) 1966-02-14
GB1069856A (en) 1967-05-24
NL6513937A (enrdf_load_html_response) 1966-05-02

Similar Documents

Publication Publication Date Title
US6113866A (en) Apparatus for preparing purified terephthalic acid
US3457280A (en) Alpha-glycolide and methods for the isolation thereof
EP1030829B1 (en) Method and apparatus for preparing purified terephthalic acid
US2794832A (en) Crystallization and separation of crystals
US3161658A (en) Trimellitic acid recovery and conversion to anhydride
US4370487A (en) Process for, respectively, the production and purification of dicarboxylic and polycarboxylic acid anhydrides
CA1304402C (en) Process for the purification of 2-hydroxynaphthalene-6-carboxylic acid
US2838565A (en) Purification of terephthalic acid
US3207795A (en) Production and purification of diphenylolalkanes
US3637832A (en) Preparation of straight chain dicarboxylic acids
US3726917A (en) Process for preparing adipic acid
US3105851A (en) Separation of recoverable materials from oxidation by-products
IL24531A (en) METHOD FOR PURIFICING TERPETIC ACID
US2971011A (en) Process of preparing trimellitic anhydride
US2857429A (en) Process for recovering pure phthalic acids
US3592848A (en) Method of purifying terephthalic acid
US4165328A (en) Process for separating 11-cyanoundecanoic acid, cyclohexanone and ε-
US3004067A (en) Separation of aromatic
JPH0446253B2 (enrdf_load_html_response)
US3215734A (en) Process for purification of terephthalic acid
US2358048A (en) Preparation of esters of polybasic cyclic unsaturated acids
US3646125A (en) Terephthalic acid purification process
US3004062A (en) Purification of phthalic acid esters
JPH1053557A (ja) 高純度2,6−ナフタレンジカルボン酸の製造方法
EP0274887A1 (en) Process for the recovery of succinic acid from its mixtures with other carboxylic acids