GB597169A - Improved method of preparing aluminium phosphates - Google Patents
Improved method of preparing aluminium phosphatesInfo
- Publication number
- GB597169A GB597169A GB656045A GB656045A GB597169A GB 597169 A GB597169 A GB 597169A GB 656045 A GB656045 A GB 656045A GB 656045 A GB656045 A GB 656045A GB 597169 A GB597169 A GB 597169A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ratio
- water content
- aluminium phosphates
- yield
- mixing
- 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
- C01B25/46—Preparation involving solvent-solvent extraction
Abstract
Soluble solid aluminium phosphates are produced by mixing and reacting separate dispersions in an inert aqueous liquid, of finely divided aluminium hydroxide (A12O33H2O) and finely divided phosphorus pentoxide or phosphoric acid in proportions to yield an Al to PO4 ratio of 1/3 to 2/3 , controlling the water content of the reactants and the loss of water by evaporation being controlled to yield a product having a water content ranging from zero for a 1 : 3 ratio, to over 25 per cent. by weight for a 1 1/2 : 3 ratio, and to about 35 per cent. for the 2 : 3 ratio, and separating. Dispersion and mixing may be aided by agitation and promoters, e.g., oleic or other fatty acid. Sufficient inert liquid, e.g., light hydrocarbons, kerosene, toluene, xylene, heavy gasoline fractions &c. is used to absorb the heat of reaction and prevent the temperature rising beyond any desired limits, e.g., 160-180 DEG F. The product separates as a heterogeneous phase which cools to a resinous conchoidal glass. Continuous or batch operation is feasible. Examples describe the preparation of mono, Al (H2PO4)3, sesqui, and di, Al2 (HPO4)3 aluminium phosphates. A chart shows variations of properties with composition and water content. The products are useful in binders.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB597169A true GB597169A (en) | 1948-01-20 |
Family
ID=1628654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB656045A Expired GB597169A (en) | 1945-03-15 | Improved method of preparing aluminium phosphates |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB597169A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4021528A (en) * | 1974-01-26 | 1977-05-03 | Hoechst Aktiengesellschaft | Process for preparing AlH3 (PO4)2.3 H2 O |
| US4324773A (en) * | 1981-01-30 | 1982-04-13 | Allied Corporation | Hydrothermal process and apparatus for synthesizing crystalline powders |
| CN115591573A (en) * | 2021-07-07 | 2023-01-13 | 中国石油化工股份有限公司（Cn） | Yield-increasing propylene additive and preparation method thereof |
| CN116143533A (en) * | 2023-04-14 | 2023-05-23 | 中南大学 | Light high-temperature-resistant phosphate composite material and preparation method thereof |
-
1945
- 1945-03-15 GB GB656045A patent/GB597169A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4021528A (en) * | 1974-01-26 | 1977-05-03 | Hoechst Aktiengesellschaft | Process for preparing AlH3 (PO4)2.3 H2 O |
| US4324773A (en) * | 1981-01-30 | 1982-04-13 | Allied Corporation | Hydrothermal process and apparatus for synthesizing crystalline powders |
| CN115591573A (en) * | 2021-07-07 | 2023-01-13 | 中国石油化工股份有限公司（Cn） | Yield-increasing propylene additive and preparation method thereof |
| CN115591573B (en) * | 2021-07-07 | 2023-09-05 | 中国石油化工股份有限公司 | Yield-increasing propylene auxiliary agent and preparation method thereof |
| CN116143533A (en) * | 2023-04-14 | 2023-05-23 | 中南大学 | Light high-temperature-resistant phosphate composite material and preparation method thereof |
| CN116143533B (en) * | 2023-04-14 | 2023-11-07 | 中南大学 | Light high-temperature-resistant phosphate composite material and preparation method thereof |
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