GB480480A - An improved process for the production of an adsorbent mass - Google Patents
An improved process for the production of an adsorbent massInfo
- Publication number
- GB480480A GB480480A GB2731/37A GB273137A GB480480A GB 480480 A GB480480 A GB 480480A GB 2731/37 A GB2731/37 A GB 2731/37A GB 273137 A GB273137 A GB 273137A GB 480480 A GB480480 A GB 480480A
- Authority
- GB
- United Kingdom
- Prior art keywords
- water
- product
- acid
- washed
- insoluble
- 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
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
An absorbent mass chiefly consisting of silica is obtained by decomposing siliceous raw materials by fusion with such an excess of alkali that the product will disintegrate on treatment with water with the deposition of the water-insoluble constituents as a finely divided precipitate, treating the product with water to cause such disintegration thereof, separating the finely divided precipitate from the solution and decomposing the precipitate with acids or acid salts to produce a pulverulent silicic acid. The acid decomposition may be effected in the presence of electrolytes, e.g. soluble silicates, or non-electrolytes, e.g. organic substances. The product may be wholly or partially washed and/or freed from water. Finally it may be calcined. According to an example, water-washed insoluble residues from waterglass filtration are boiled with dilute hydrochloric acid, one or several times with intervening decantation or filtration. The product is washed, dried and calcined. The Specification as open to inspection under Sect. 91 comprises also the preparation of melts in such a manner that in the subsequent preparation therefrom of waterglass, a large amount of water-insoluble silicates are obtained for submission to the subsequent acid treatment. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE480480X | 1936-02-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB480480A true GB480480A (en) | 1938-02-23 |
Family
ID=6542547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2731/37A Expired GB480480A (en) | 1936-02-04 | 1937-01-29 | An improved process for the production of an adsorbent mass |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB480480A (en) |
-
1937
- 1937-01-29 GB GB2731/37A patent/GB480480A/en not_active Expired
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