CH554823A - Procede de purification de la 2,3,5-trimethylhydroquinone. - Google Patents
Procede de purification de la 2,3,5-trimethylhydroquinone.Info
- Publication number
- CH554823A CH554823A CH1606972A CH1606972A CH554823A CH 554823 A CH554823 A CH 554823A CH 1606972 A CH1606972 A CH 1606972A CH 1606972 A CH1606972 A CH 1606972A CH 554823 A CH554823 A CH 554823A
- Authority
- CH
- Switzerland
- Prior art keywords
- trimethylhydroquinone
- purifying
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
- C07C37/70—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment
- C07C37/84—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by crystallisation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8843871A JPS5126426B2 (fr) | 1971-11-05 | 1971-11-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH554823A true CH554823A (fr) | 1974-10-15 |
Family
ID=13942787
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1606972A CH554823A (fr) | 1971-11-05 | 1972-11-03 | Procede de purification de la 2,3,5-trimethylhydroquinone. |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS5126426B2 (fr) |
CH (1) | CH554823A (fr) |
DE (1) | DE2250065C3 (fr) |
FR (1) | FR2158424B1 (fr) |
GB (1) | GB1357280A (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4147625A (en) * | 1978-04-26 | 1979-04-03 | Continental Oil Company | Method for clarifying discolored trimethylhydroquinone solutions |
JPS6136236A (ja) * | 1984-07-30 | 1986-02-20 | Kawasaki Kasei Chem Ltd | ナフトヒドロキノンの製造法 |
US7541417B2 (en) | 2006-03-30 | 2009-06-02 | Sabic Innovative Plastics Ip B.V. | Process for the purification of dihydric phenols |
US7528210B2 (en) | 2006-03-30 | 2009-05-05 | Sabic Innovative Plastics Ip B.V. | Method of purification of dihydric phenols |
CN102659580B (zh) * | 2012-04-18 | 2014-01-15 | 天津大学 | 一种制备2,3,5-三甲基氢醌二酯新晶型及结晶方法 |
CN115043710B (zh) * | 2022-05-31 | 2024-03-12 | 武汉华尔生物科技有限公司 | 一种高纯氢醌的纯化方法 |
-
1971
- 1971-11-05 JP JP8843871A patent/JPS5126426B2/ja not_active Expired
-
1972
- 1972-10-12 DE DE19722250065 patent/DE2250065C3/de not_active Expired
- 1972-10-20 GB GB4849072A patent/GB1357280A/en not_active Expired
- 1972-10-31 FR FR7238685A patent/FR2158424B1/fr not_active Expired
- 1972-11-03 CH CH1606972A patent/CH554823A/fr not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
GB1357280A (en) | 1974-06-19 |
DE2250065B2 (de) | 1979-02-15 |
FR2158424B1 (fr) | 1975-03-28 |
FR2158424A1 (fr) | 1973-06-15 |
DE2250065A1 (de) | 1973-05-10 |
JPS4852729A (fr) | 1973-07-24 |
DE2250065C3 (de) | 1979-10-04 |
JPS5126426B2 (fr) | 1976-08-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |