NL7416593A - Werkwijze ter vermindering van het gehalte aan tereftaalaldehydezuurmethylester in dimethyl- tereftalaat. - Google Patents

Werkwijze ter vermindering van het gehalte aan tereftaalaldehydezuurmethylester in dimethyl- tereftalaat.

Info

Publication number: NL7416593A
Authority: NL; Netherlands
Prior art keywords: terephaldehydic; procedure; reducing; content; methyl ester
Prior art date: 1973-12-20

Application number

NL7416593A

Other languages

English (en)

Dutch (nl)

Original Assignee

Huels Chemische Werke Ag

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.)

1973-12-20

Filing date

1974-12-19

Publication date

1975-06-24

1974-12-19 Application filed by Huels Chemische Werke Ag filed Critical Huels Chemische Werke Ag

1975-06-24 Publication of NL7416593A publication Critical patent/NL7416593A/xx

Links

OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 title 1
239000002253 acid Substances 0.000 title 1
150000004702 methyl esters Chemical class 0.000 title 1

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)
General Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

NL7416593A 1973-12-20 1974-12-19 Werkwijze ter vermindering van het gehalte aan tereftaalaldehydezuurmethylester in dimethyl- tereftalaat. NL7416593A (nl)

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
NL7416593A true NL7416593A (nl)	1975-06-24

Family

ID=5901340

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL7416593A NL7416593A (nl)	1973-12-20	1974-12-19	Werkwijze ter vermindering van het gehalte aan tereftaalaldehydezuurmethylester in dimethyl- tereftalaat.

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

1973
- 1973-12-20 DE DE19732363414 patent/DE2363414C3/de not_active Expired
1974
- 1974-12-10 RO RO7480810A patent/RO65160A/fr unknown
- 1974-12-18 IT IT5462374A patent/IT1026064B/it active
- 1974-12-18 GB GB5458774A patent/GB1486320A/en not_active Expired
- 1974-12-19 FR FR7441997A patent/FR2255286A1/fr not_active Withdrawn
- 1974-12-19 NL NL7416593A patent/NL7416593A/xx not_active Application Discontinuation
- 1974-12-20 BE BE151838A patent/BE823734A/fr unknown
- 1974-12-20 JP JP14668074A patent/JPS5095237A/ja active Pending

Also Published As

Publication number	Publication date
RO65160A (fr)	1980-06-15
FR2255286A1 (fr)	1975-07-18
DE2363414C3 (de)	1980-07-10
BE823734A (fr)	1975-04-16
GB1486320A (en)	1977-09-21
JPS5095237A (fr)	1975-07-29
IT1026064B (it)	1978-09-20
DE2363414B2 (de)	1979-10-25
DE2363414A1 (de)	1975-07-03

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Legal Events

Date	Code	Title	Description
1980-10-27	BV	The patent application has lapsed