IN138649B - - Google Patents
Info
- Publication number
- IN138649B IN138649B IN1712/CAL/75A IN1712CA1975A IN138649B IN 138649 B IN138649 B IN 138649B IN 1712CA1975 A IN1712CA1975 A IN 1712CA1975A IN 138649 B IN138649 B IN 138649B
- Authority
- IN
- India
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
- C07C37/88—Use of additives, e.g. for stabilisation
-
- 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
- C07C37/74—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by distillation
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 |
|---|---|---|---|
| US05/508,367 US4142943A (en) | 1974-09-23 | 1974-09-23 | Method for purifying pentachlorophenol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN138649B true IN138649B (fr) | 1976-03-06 |
Family
ID=24022469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN1712/CAL/75A IN138649B (fr) | 1974-09-23 | 1975-09-05 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4142943A (fr) |
| JP (1) | JPS5156420A (fr) |
| CA (1) | CA1066219A (fr) |
| DE (1) | DE2541591A1 (fr) |
| FR (1) | FR2285363A1 (fr) |
| GB (1) | GB1484981A (fr) |
| IN (1) | IN138649B (fr) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4288296A (en) * | 1979-03-26 | 1981-09-08 | The Dow Chemical Company | Decomposition inhibitors for high temperature storage and distillation of chlorinated phenols |
| US4327027A (en) * | 1979-06-15 | 1982-04-27 | Vertac Chemical Corporation | Chemical detoxification of toxic chlorinated aromatic compounds |
| US4272636A (en) * | 1979-12-26 | 1981-06-09 | The Dow Chemical Company | Chlorinated phenol mold release agent |
| US4289587A (en) * | 1980-04-29 | 1981-09-15 | Vulcan Materials Company | Stabilization of chlorinated phenols |
| JPS61118336A (ja) * | 1984-11-13 | 1986-06-05 | Yonezawa Kagaku Kogyo Kk | ペンタクロルフエノ−ル及びその誘導体の精製法 |
| FR2628736B1 (fr) * | 1988-03-17 | 1990-07-27 | Rhone Poulenc Chimie | Procede de stabilisation des melanges de chloration du phenol et/ou de chlorophenols |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3646225A (en) * | 1967-07-24 | 1972-02-29 | Dow Chemical Co | Treatment of pentachlorophenol |
| US3655523A (en) * | 1969-10-15 | 1972-04-11 | Dow Chemical Co | Method for separating a 2- and 4-chlorobiphenyl from the corresponding hydroxybiphenyl compounds |
| US3692561A (en) * | 1970-06-29 | 1972-09-19 | Uniroyal Ltd | Method of treating pentachlorophenol |
| US3830708A (en) * | 1972-07-18 | 1974-08-20 | Union Carbide Corp | Process for the purification of phenol by azeotropic distillation with ethylene glycol |
| US3816268A (en) * | 1973-04-20 | 1974-06-11 | Dow Chemical Co | Stabilized distillation of pentachlorophenol |
| US4016047A (en) * | 1973-11-09 | 1977-04-05 | Vulcan Materials Company | Separation and recovery of polychlorinated phenols |
| US3909365A (en) * | 1973-11-09 | 1975-09-30 | Vulcan Materials Co | Production of chlorinated phenols of improved color |
-
1974
- 1974-09-23 US US05/508,367 patent/US4142943A/en not_active Expired - Lifetime
-
1975
- 1975-09-05 IN IN1712/CAL/75A patent/IN138649B/en unknown
- 1975-09-15 FR FR7528191A patent/FR2285363A1/fr active Granted
- 1975-09-18 DE DE19752541591 patent/DE2541591A1/de not_active Withdrawn
- 1975-09-19 GB GB38591/75A patent/GB1484981A/en not_active Expired
- 1975-09-22 CA CA235,983A patent/CA1066219A/fr not_active Expired
- 1975-09-23 JP JP50114366A patent/JPS5156420A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2285363A1 (fr) | 1976-04-16 |
| AU8459275A (en) | 1977-03-10 |
| JPS5156420A (en) | 1976-05-18 |
| DE2541591A1 (de) | 1976-04-01 |
| GB1484981A (en) | 1977-09-08 |
| US4142943A (en) | 1979-03-06 |
| FR2285363B1 (fr) | 1978-04-07 |
| CA1066219A (fr) | 1979-11-13 |