GB136342A - Improvements in or relating to the Purification of Ammonia. - Google Patents
Improvements in or relating to the Purification of Ammonia.Info
- Publication number
- GB136342A GB136342A GB144219A GB144219A GB136342A GB 136342 A GB136342 A GB 136342A GB 144219 A GB144219 A GB 144219A GB 144219 A GB144219 A GB 144219A GB 136342 A GB136342 A GB 136342A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ammonia
- catalyst
- chamber
- air
- phosphine
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/02—Preparation, purification or separation of ammonia
- C01C1/024—Purification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
136,342. Parsons, C. L., and Jones, L. C. Jan. 20,1919. Ammonia; ammonium phosphate.-Ammonia is purified from phosphine to render it suitable for catalytic oxidation to produce nitrogen oxides, by passing it through charcoal or other porous carbonaceous material, which may be activated by impregnating with a metal compound, for instance silver nitrate, and drying, with or without subsequent reduction in hydrogen. By this treatment, at a comparatively low temperature, the phosphine is oxidized and ammonium phosphate is formed and absorbed in the catalyst, from which it is removed by washing. The apparatus described consists of two chambers 3, 3<1> connected so as to be used alternately, and each containing a removable open cylinder 18 carrying the catalytic mass on permeable screens 19 within a steam jacket 10 through which pass air-pipes 11 secured in header plates 12, 13. When the catalyst in one chamber is exhausted, the chamber is cut out by means of the valves shown, and steam is admitted to the jacket by a pipe 17, and air to an annular chamber 14 by a pipe 16. The air traverses the pipes 11 and passes through the catalyst to expel absorbed ammonia. The cover 20 is then removed, and the cylinder 18 lifted out so that the charcoal can be washed or replaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB144219A GB136342A (en) | 1919-01-20 | 1919-01-20 | Improvements in or relating to the Purification of Ammonia. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB144219A GB136342A (en) | 1919-01-20 | 1919-01-20 | Improvements in or relating to the Purification of Ammonia. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB136342A true GB136342A (en) | 1919-12-18 |
Family
ID=32669818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB144219A Expired GB136342A (en) | 1919-01-20 | 1919-01-20 | Improvements in or relating to the Purification of Ammonia. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB136342A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111634891A (en) * | 2020-05-28 | 2020-09-08 | 杭州博大净化设备有限公司 | Conveniently change nitrogen gas purifier of catalyst |
-
1919
- 1919-01-20 GB GB144219A patent/GB136342A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111634891A (en) * | 2020-05-28 | 2020-09-08 | 杭州博大净化设备有限公司 | Conveniently change nitrogen gas purifier of catalyst |
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