GB255766A - Improvements in the manufacture and production of ammonium phosphates - Google Patents
Improvements in the manufacture and production of ammonium phosphatesInfo
- Publication number
- GB255766A GB255766A GB601026A GB601026A GB255766A GB 255766 A GB255766 A GB 255766A GB 601026 A GB601026 A GB 601026A GB 601026 A GB601026 A GB 601026A GB 255766 A GB255766 A GB 255766A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ammonia
- absorption
- solution
- phosphates
- ammonium phosphate
- 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
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/26—Phosphates
- C01B25/28—Ammonium phosphates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/26—Phosphates
- C01B25/38—Condensed phosphates
- C01B25/40—Polyphosphates
- C01B25/405—Polyphosphates of ammonium
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
255,766. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). March 3, 1926. Ammonium phosphates.-Mono, di- and triammonium phosphates are obtained by absorption of phosphoric anhydride from gases containing it by means of an aqueous solution of an ammonium phosphate. When making the di- and triammonium phosphates, preferably the solution used for absorption should not contain more than 1.5 mols. of ammonia for each molecule of phosphoric acid, the necessary ammonia being added after the absorption has been completed. The phosphoric anhydride is completely absorbed and ammonia either as gas or in solution is continuously added until a hot concentrated solution of ammonium phosphate is produced. The ammonia may be mixed with the gas containing phosphoric anhydride before absorption. The hot solution may be filtered free from iron and aluminium compounds before it is cooled to separatethe ammonium phosphate as crystals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB601026A GB255766A (en) | 1926-03-03 | 1926-03-03 | Improvements in the manufacture and production of ammonium phosphates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB601026A GB255766A (en) | 1926-03-03 | 1926-03-03 | Improvements in the manufacture and production of ammonium phosphates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB255766A true GB255766A (en) | 1926-07-29 |
Family
ID=9806773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB601026A Expired GB255766A (en) | 1926-03-03 | 1926-03-03 | Improvements in the manufacture and production of ammonium phosphates |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB255766A (en) |
-
1926
- 1926-03-03 GB GB601026A patent/GB255766A/en not_active Expired
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