RO70587A - Procedeu pentru recuperarea glicolului de la fabricarea esterilor glicolici ai acidului tereftalic - Google Patents
Procedeu pentru recuperarea glicolului de la fabricarea esterilor glicolici ai acidului tereftalicInfo
- Publication number
- RO70587A RO70587A RO7480425A RO8042574A RO70587A RO 70587 A RO70587 A RO 70587A RO 7480425 A RO7480425 A RO 7480425A RO 8042574 A RO8042574 A RO 8042574A RO 70587 A RO70587 A RO 70587A
- Authority
- RO
- Romania
- Prior art keywords
- desesters
- glycolic
- recovery
- manufacture
- terephalic acid
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C31/00—Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
- C07C31/18—Polyhydroxylic acyclic alcohols
- C07C31/20—Dihydroxylic alcohols
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
- C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
- C07C29/80—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation
-
- 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
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 |
|---|---|---|---|
| DD174614A DD114588A1 (ro) | 1973-11-06 | 1973-11-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| RO70587A true RO70587A (ro) | 1980-08-15 |
Family
ID=5493432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO7480425A RO70587A (ro) | 1973-11-06 | 1974-11-05 | Procedeu pentru recuperarea glicolului de la fabricarea esterilor glicolici ai acidului tereftalic |
Country Status (5)
| Country | Link |
|---|---|
| BG (1) | BG24290A1 (ro) |
| CS (1) | CS177560B1 (ro) |
| DD (1) | DD114588A1 (ro) |
| DE (1) | DE2451176A1 (ro) |
| RO (1) | RO70587A (ro) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4306144A1 (de) * | 1993-02-27 | 1994-09-01 | Brown John Deutsche Eng Gmbh | Verfahren und Polykondensationsanlage zur Aufbereitung von verunreinigtem Ethylenglykol |
-
1973
- 1973-11-06 DD DD174614A patent/DD114588A1/xx unknown
-
1974
- 1974-10-28 DE DE19742451176 patent/DE2451176A1/de active Pending
- 1974-11-05 CS CS7547A patent/CS177560B1/cs unknown
- 1974-11-05 BG BG7400028112A patent/BG24290A1/xx unknown
- 1974-11-05 RO RO7480425A patent/RO70587A/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2451176A1 (de) | 1975-05-07 |
| BG24290A1 (en) | 1978-02-10 |
| CS177560B1 (ro) | 1977-07-29 |
| DD114588A1 (ro) | 1975-08-12 |
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