JPS5337634A - Recovering method of telephthalic acid and intermediate - Google Patents
Recovering method of telephthalic acid and intermediateInfo
- Publication number
- JPS5337634A JPS5337634A JP8864476A JP8864476A JPS5337634A JP S5337634 A JPS5337634 A JP S5337634A JP 8864476 A JP8864476 A JP 8864476A JP 8864476 A JP8864476 A JP 8864476A JP S5337634 A JPS5337634 A JP S5337634A
- Authority
- JP
- Japan
- Prior art keywords
- recovering method
- telephthalic acid
- telephthalic
- acid
- recovering
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 239000002253 acid Substances 0.000 title 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/76—Esters of carboxylic acids having a carboxyl group bound to a carbon atom of a six-membered aromatic ring
- C07C69/80—Phthalic acid esters
- C07C69/82—Terephthalic acid esters
-
- 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
- C07C67/52—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
- C07C67/54—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8864476A JPS6056698B2 (en) | 1976-07-27 | 1976-07-27 | Recovery method for dimethyl terephthalate and its intermediates |
DE19772733548 DE2733548A1 (en) | 1976-07-27 | 1977-07-25 | PROCESS FOR THE IMPROVED MANUFACTURING OF DIMETHYLTEREPHTHALATE |
NL7708274A NL7708274A (en) | 1976-07-27 | 1977-07-26 | PROCESS FOR PREPARING DIMETHYLTER EFTALATE. |
IT2620677A IT1086341B (en) | 1976-07-27 | 1977-07-27 | PROCEDURE FOR INCREASED PRODUCTION OF DIMETHYL-TEREPHTHALATE |
FR7723040A FR2359814A1 (en) | 1976-07-27 | 1977-07-27 | Di:methyl terephthalate prepn. - by liquid phase oxidn. of para-xylene or derivs., esterification, distn. and residue treatment with oxygen and methanol (NL 31.1.78) |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8864476A JPS6056698B2 (en) | 1976-07-27 | 1976-07-27 | Recovery method for dimethyl terephthalate and its intermediates |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5337634A true JPS5337634A (en) | 1978-04-06 |
JPS6056698B2 JPS6056698B2 (en) | 1985-12-11 |
Family
ID=13948517
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8864476A Expired JPS6056698B2 (en) | 1976-07-27 | 1976-07-27 | Recovery method for dimethyl terephthalate and its intermediates |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS6056698B2 (en) |
DE (1) | DE2733548A1 (en) |
FR (1) | FR2359814A1 (en) |
IT (1) | IT1086341B (en) |
NL (1) | NL7708274A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4760165A (en) * | 1985-11-13 | 1988-07-26 | Teijin Petrochemical Industries, Ltd. | Recovering useful components at least containing dimethyl terephthalate from high-boiling byproducts occurring in the production of dimethyl terephthalate |
JPS62119396U (en) * | 1986-01-23 | 1987-07-29 | ||
EP0953561A1 (en) * | 1998-04-29 | 1999-11-03 | ARTEVA TECHNOLOGIES S.à.r.l. | Preparation of dimethylterephthalate via the air oxidation of p-tolualdehyde |
-
1976
- 1976-07-27 JP JP8864476A patent/JPS6056698B2/en not_active Expired
-
1977
- 1977-07-25 DE DE19772733548 patent/DE2733548A1/en active Pending
- 1977-07-26 NL NL7708274A patent/NL7708274A/en not_active Application Discontinuation
- 1977-07-27 FR FR7723040A patent/FR2359814A1/en not_active Withdrawn
- 1977-07-27 IT IT2620677A patent/IT1086341B/en active
Also Published As
Publication number | Publication date |
---|---|
IT1086341B (en) | 1985-05-28 |
DE2733548A1 (en) | 1978-02-02 |
JPS6056698B2 (en) | 1985-12-11 |
FR2359814A1 (en) | 1978-02-24 |
NL7708274A (en) | 1978-01-31 |
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