RO63832A - Procede de recuperation du cobalt des residus de la preparation du terephtalate de dimethyle - Google Patents
Procede de recuperation du cobalt des residus de la preparation du terephtalate de dimethyleInfo
- Publication number
- RO63832A RO63832A RO7200072586A RO7258672A RO63832A RO 63832 A RO63832 A RO 63832A RO 7200072586 A RO7200072586 A RO 7200072586A RO 7258672 A RO7258672 A RO 7258672A RO 63832 A RO63832 A RO 63832A
- Authority
- RO
- Romania
- Prior art keywords
- residues
- preparation
- dimethyl terephthalate
- recovering cobalt
- recovering
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C63/00—Compounds having carboxyl groups bound to a carbon atoms of six-membered aromatic rings
-
- 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
- C07C67/313—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by introduction of doubly bound oxygen containing functional groups, e.g. carboxyl groups
-
- 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
- C07C67/58—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL15127471A PL70344B1 (fr) | 1971-10-28 | 1971-10-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
RO63832A true RO63832A (fr) | 1978-12-15 |
Family
ID=19956062
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RO7200072586A RO63832A (fr) | 1971-10-28 | 1972-10-20 | Procede de recuperation du cobalt des residus de la preparation du terephtalate de dimethyle |
Country Status (5)
Country | Link |
---|---|
BG (1) | BG27881A3 (fr) |
CS (1) | CS168009B2 (fr) |
DE (1) | DE2249605B2 (fr) |
PL (1) | PL70344B1 (fr) |
RO (1) | RO63832A (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4609634A (en) * | 1980-03-31 | 1986-09-02 | American Hoechst Corporation | High efficiency extraction method for recovering oxidation catalyst material from dimethyl terephthalate esterified oxidate residue and the like |
DE3045332C2 (de) * | 1980-12-02 | 1982-11-25 | Dynamit Nobel Ag, 5210 Troisdorf | Verfahren zur Gewinnung und Wiederverwendung von Schwermetalloxidationskatalysator aus Rückständen im Witten-DMT-Prozeß |
US4459365A (en) * | 1981-05-29 | 1984-07-10 | Mitsubishi Gas Chemical Company, Inc. | Method of recovering a catalytic metal |
-
1971
- 1971-10-28 PL PL15127471A patent/PL70344B1/xx unknown
-
1972
- 1972-10-10 DE DE19722249605 patent/DE2249605B2/de not_active Withdrawn
- 1972-10-20 RO RO7200072586A patent/RO63832A/fr unknown
- 1972-10-26 BG BG021725A patent/BG27881A3/xx unknown
- 1972-10-27 CS CS7236A patent/CS168009B2/cs unknown
Also Published As
Publication number | Publication date |
---|---|
BG27881A3 (en) | 1980-01-15 |
DE2249605A1 (de) | 1973-05-10 |
PL70344B1 (fr) | 1974-02-28 |
DE2249605B2 (de) | 1977-02-03 |
CS168009B2 (fr) | 1976-05-28 |
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