JPS54130526A - Preparation of o-chloroaniline - Google Patents
Preparation of o-chloroanilineInfo
- Publication number
- JPS54130526A JPS54130526A JP3762778A JP3762778A JPS54130526A JP S54130526 A JPS54130526 A JP S54130526A JP 3762778 A JP3762778 A JP 3762778A JP 3762778 A JP3762778 A JP 3762778A JP S54130526 A JPS54130526 A JP S54130526A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- amount
- water
- chloroaniline
- chloronitrobenzene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To prepare o-chloroaniline, in high selectivity and yield, using a low-cost reactor, and without causing environmental pollution, by the catalytic reduction of o-chloronitrobenzene in the presence of NH3 and water, using an extremely small amount of Pt-C catalyst, under a mild reaction condition.
CONSTITUTION: o-Chloroaniline is prepared with a selectivity of ≥99.9% and a purity of ≥99.8% by the hydrogenation of o-chloronitrobenzene in the presence of NH3 and water, using a Pt-C catalyst, at 45W137°C under a hydrogen pressure of 5-30 kg/cm2. The Pt-C catalyst is the one prepared by conventional process, and its amount is as low as 0.01W0.03 wt% based on the raw material. The supported amount of the catalst is 1W5%. The amounts of NH3 and water are 0.35W 1.98 wt%, and 1W50 wt%, based on the raw material, respectively. Use of larger amount of water remarkably improves the reaction rate, and further decreases the amount of the catalyst.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3762778A JPS54130526A (en) | 1978-03-31 | 1978-03-31 | Preparation of o-chloroaniline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3762778A JPS54130526A (en) | 1978-03-31 | 1978-03-31 | Preparation of o-chloroaniline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54130526A true JPS54130526A (en) | 1979-10-09 |
Family
ID=12502866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3762778A Pending JPS54130526A (en) | 1978-03-31 | 1978-03-31 | Preparation of o-chloroaniline |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54130526A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102320982A (en) * | 2011-08-04 | 2012-01-18 | 安徽八一化工股份有限公司 | Method for producing o-nitroaniline by multiple series-connected kettles |
| CN105562032A (en) * | 2016-03-08 | 2016-05-11 | 中国科学院宁波材料技术与工程研究所 | Catalyst applied to reaction for synthesizing parachloroaniline through hydrogenation as well as preparation method and application of catalyst |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5235651A (en) * | 1975-09-13 | 1977-03-18 | Sumitomo Electric Ind Ltd | Light transmitting cable |
| JPS5235652A (en) * | 1975-09-13 | 1977-03-18 | Sumitomo Electric Ind Ltd | Light transmitting cable |
| JPS5242782A (en) * | 1975-09-29 | 1977-04-02 | Ibm | Hadamard transformation spectrometer |
-
1978
- 1978-03-31 JP JP3762778A patent/JPS54130526A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5235651A (en) * | 1975-09-13 | 1977-03-18 | Sumitomo Electric Ind Ltd | Light transmitting cable |
| JPS5235652A (en) * | 1975-09-13 | 1977-03-18 | Sumitomo Electric Ind Ltd | Light transmitting cable |
| JPS5242782A (en) * | 1975-09-29 | 1977-04-02 | Ibm | Hadamard transformation spectrometer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102320982A (en) * | 2011-08-04 | 2012-01-18 | 安徽八一化工股份有限公司 | Method for producing o-nitroaniline by multiple series-connected kettles |
| CN105562032A (en) * | 2016-03-08 | 2016-05-11 | 中国科学院宁波材料技术与工程研究所 | Catalyst applied to reaction for synthesizing parachloroaniline through hydrogenation as well as preparation method and application of catalyst |
| CN105562032B (en) * | 2016-03-08 | 2018-02-02 | 中国科学院宁波材料技术与工程研究所 | Catalyst, its preparation method and application for the reaction of hydrogenation synthesis parachloroanilinum |
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