GB820122A - Granulated sodium metasilicate - Google Patents
Granulated sodium metasilicateInfo
- Publication number
- GB820122A GB820122A GB1585556A GB1585556A GB820122A GB 820122 A GB820122 A GB 820122A GB 1585556 A GB1585556 A GB 1585556A GB 1585556 A GB1585556 A GB 1585556A GB 820122 A GB820122 A GB 820122A
- Authority
- GB
- United Kingdom
- Prior art keywords
- anhydrous
- sodium metasilicate
- blending
- silicate
- mixture
- 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
- C01B33/20—Silicates
- C01B33/32—Alkali metal silicates
- C01B33/325—After-treatment, e.g. purification or stabilisation of solutions, granulation; Dissolution; Obtaining solid silicate, e.g. from a solution by spray-drying, flashing off water or adding a coagulant
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Detergent Compositions (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
A granular sodium silicate which can be blended with other materials, e.g. for detergent compositions and consisting of an intimate bonded mixture of anhydrous and a hydrated sodium metasilicate may be prepared by adding 0.2-0.4 parts by weight of water to 1 part by weight of anhydrous sodium metasilicate, said mixture containing not more than 3% of sodium hydroxide, and blending. It is preferred to add the water rapidly whilst blending the anhydrous silicate until a translucent appearance is obtained and then continuing the blending for at least 1/4 hour until the mixture is uniform. If the anhydrous silicate has been crystallized from an alkaline solution, it is necessary to wash the material first, preferably with aqueous sodium metasilicate. The resulting granules have a melting point of 63-70 DEG C. and contain sodium metasilicate hexahydrate and possibly pentahydrate. By heating at as low as 150 DEG C., preferably under vacuum, a substantially anhydrous granular material can be obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1585556A GB820122A (en) | 1956-05-22 | 1956-05-22 | Granulated sodium metasilicate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1585556A GB820122A (en) | 1956-05-22 | 1956-05-22 | Granulated sodium metasilicate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB820122A true GB820122A (en) | 1959-09-16 |
Family
ID=10066733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1585556A Expired GB820122A (en) | 1956-05-22 | 1956-05-22 | Granulated sodium metasilicate |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB820122A (en) |
-
1956
- 1956-05-22 GB GB1585556A patent/GB820122A/en not_active Expired
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