RO65160A - Procede pour reduction de teneur d'esthere methilyques d'acide terephaldehidique - Google Patents

Procede pour reduction de teneur d'esthere methilyques d'acide terephaldehidique

Info

Publication number
RO65160A
RO65160A RO7480810A RO8081074A RO65160A RO 65160 A RO65160 A RO 65160A RO 7480810 A RO7480810 A RO 7480810A RO 8081074 A RO8081074 A RO 8081074A RO 65160 A RO65160 A RO 65160A
Authority
RO
Romania
Prior art keywords
terephaldehidic
esthetic
reducing
content
methylic
Prior art date
Application number
RO7480810A
Other languages
English (en)
Romanian (ro)
Inventor
Fritz Obenaus
Hans O Reitemeyer
Original Assignee
Chemische Werke Huls Ag,De
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 Chemische Werke Huls Ag,De filed Critical Chemische Werke Huls Ag,De
Publication of RO65160A publication Critical patent/RO65160A/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
    • C07C67/333—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J23/44—Palladium
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/39—Preparation of carboxylic acid esters by oxidation of groups which are precursors for the acid moiety of the ester
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/48—Separation; Purification; Stabilisation; Use of additives
    • C07C67/60—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)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
RO7480810A 1973-12-20 1974-12-10 Procede pour reduction de teneur d'esthere methilyques d'acide terephaldehidique RO65160A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732363414 DE2363414C3 (de) 1973-12-20 1973-12-20 Verfahren zur Reinigung von Dimethylterephthalat durch Verringerung des Gehaltes an Terephthalaldehydsäuremethylester bzw. seines Dimethylacetals

Publications (1)

Publication Number Publication Date
RO65160A true RO65160A (fr) 1980-06-15

Family

ID=5901340

Family Applications (1)

Application Number Title Priority Date Filing Date
RO7480810A RO65160A (fr) 1973-12-20 1974-12-10 Procede pour reduction de teneur d'esthere methilyques d'acide terephaldehidique

Country Status (8)

Country Link
JP (1) JPS5095237A (fr)
BE (1) BE823734A (fr)
DE (1) DE2363414C3 (fr)
FR (1) FR2255286A1 (fr)
GB (1) GB1486320A (fr)
IT (1) IT1026064B (fr)
NL (1) NL7416593A (fr)
RO (1) RO65160A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2442658A1 (fr) * 1978-11-30 1980-06-27 Chinoin Gyogyszer Es Vegyeszet Procede pour la preparation de catalyseurs au palladium non-pyrophores

Also Published As

Publication number Publication date
DE2363414C3 (de) 1980-07-10
DE2363414B2 (de) 1979-10-25
JPS5095237A (fr) 1975-07-29
NL7416593A (nl) 1975-06-24
DE2363414A1 (de) 1975-07-03
BE823734A (fr) 1975-04-16
IT1026064B (it) 1978-09-20
FR2255286A1 (fr) 1975-07-18
GB1486320A (en) 1977-09-21

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