CH506473A - Verfahren zur Reinigung von Bis-(B-hydroxyäthyl)-terephthalat - Google Patents
Verfahren zur Reinigung von Bis-(B-hydroxyäthyl)-terephthalatInfo
- Publication number
- CH506473A CH506473A CH1578468A CH1578468A CH506473A CH 506473 A CH506473 A CH 506473A CH 1578468 A CH1578468 A CH 1578468A CH 1578468 A CH1578468 A CH 1578468A CH 506473 A CH506473 A CH 506473A
- Authority
- CH
- Switzerland
- Prior art keywords
- hydroxyethyl
- terephthalate
- bis
- purification
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/10—Handling in a vacuum
-
- 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
-
- 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)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polyesters Or Polycarbonates (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6786367 | 1967-10-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH506473A true CH506473A (de) | 1971-04-30 |
Family
ID=13357180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1578468A CH506473A (de) | 1967-10-23 | 1968-10-22 | Verfahren zur Reinigung von Bis-(B-hydroxyäthyl)-terephthalat |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3607908A (de) |
| BE (1) | BE722671A (de) |
| CH (1) | CH506473A (de) |
| DE (1) | DE1804749A1 (de) |
| FR (1) | FR1588031A (de) |
| GB (1) | GB1190540A (de) |
| NL (1) | NL6815071A (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20220059681A (ko) * | 2020-11-03 | 2022-05-10 | 에스케이케미칼 주식회사 | 비스-2-하이드록시에틸 테레프탈레이트의 고순도화 정제 방법 및 이를 포함하는 폴리에스테르 수지 |
| CN114591168B (zh) * | 2022-03-31 | 2023-06-09 | 南京大学 | 一种杂原子掺杂氧化锌催化废弃pet乙二醇醇解方法 |
-
1968
- 1968-10-18 US US768912A patent/US3607908A/en not_active Expired - Lifetime
- 1968-10-22 CH CH1578468A patent/CH506473A/de not_active IP Right Cessation
- 1968-10-22 NL NL6815071A patent/NL6815071A/xx unknown
- 1968-10-22 BE BE722671D patent/BE722671A/xx unknown
- 1968-10-23 GB GB50383/68A patent/GB1190540A/en not_active Expired
- 1968-10-23 DE DE19681804749 patent/DE1804749A1/de active Pending
- 1968-10-23 FR FR1588031D patent/FR1588031A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL6815071A (de) | 1969-04-25 |
| US3607908A (en) | 1971-09-21 |
| FR1588031A (de) | 1970-04-03 |
| BE722671A (de) | 1969-04-01 |
| DE1804749A1 (de) | 1969-06-26 |
| GB1190540A (en) | 1970-05-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |