GB177736A - Process for treating silicates - Google Patents
Process for treating silicatesInfo
- Publication number
- GB177736A GB177736A GB1589421A GB1589421A GB177736A GB 177736 A GB177736 A GB 177736A GB 1589421 A GB1589421 A GB 1589421A GB 1589421 A GB1589421 A GB 1589421A GB 177736 A GB177736 A GB 177736A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filtered
- filtrate
- bisulphites
- silicates
- sulphites
- 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
- C01B35/00—Boron; Compounds thereof
- C01B35/08—Compounds containing boron and nitrogen, phosphorus, oxygen, sulfur, selenium or tellurium
- C01B35/10—Compounds containing boron and oxygen
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B35/00—Boron; Compounds thereof
- C01B35/06—Boron halogen compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B35/00—Boron; Compounds thereof
- C01B35/08—Compounds containing boron and nitrogen, phosphorus, oxygen, sulfur, selenium or tellurium
- C01B35/10—Compounds containing boron and oxygen
- C01B35/12—Borates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/20—Preparation of aluminium oxide or hydroxide from aluminous ores using acids or salts
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G9/00—Compounds of zinc
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
Alkali metal compounds, obtaining from complex silicates Relates to the treatment of silicates, such as potassium-bearing silicates and clays, in order to recover their constituents in commercially available form. The silicate is fused with boron trioxide or any substance that yields boron trioxide at a high temperature, and the resulting melt suspended in water and treated with sulphur dioxide. Bisulphites of the metals present pass into solution, while silica remains undissolved and is filtered. The filtrate is boiled, whereupon sulphur dioxide is evolved, the bisulphites converted to sulphites, and aluminium precipitated as hydroxide. The precipitate is filtered, and the filtrate boiled, with access of air to oxidize sulphites to sulphates. At the same time any iron present is precipitated, and filtered. The filtrate then contains sulphates of the alkali metals, if present and boric acid. The constituents are separated by frictional crystallization, and the boric acid used again.ALSO:These compounds are produced in a process for treating silicates, such as potassium bearing silicates and clays, in order to recover their constituents in commercially available form. The silicate is fused with boron trioxide, or any substance that yields boron trioxide at a high temperature, and the resulting melt is suspended in water and treated with sulphur dioxide. Bisulphites of the metals present pass into solution, while silica remains undissolved, and is filtered off, after which it may be treated with alkali to produce sodium silicate. The filtrate containing the bisulphites is boiled, whereon sulphur dioxide is evolved, the bisulphites converted to sulphites, and aluminium precipitated as hydroxide. The precipitate is filtered, and the filtrate boiled, with access of air, to oxidize sulphites to sulphates. At the same time any iron present is precipitated and filtered. The filtrate now contains sulphates of the alkali metals, if present, and boric acid. The constituents are separated by fractional crystallization, and the boric acid used again.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1589421A GB177736A (en) | 1921-06-09 | 1921-06-09 | Process for treating silicates |
CY523A CY5A (en) | 1921-06-09 | 1923-03-09 | Driving and controlling mechanism for power-operated machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1589421A GB177736A (en) | 1921-06-09 | 1921-06-09 | Process for treating silicates |
Publications (1)
Publication Number | Publication Date |
---|---|
GB177736A true GB177736A (en) | 1922-04-06 |
Family
ID=10067446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1589421A Expired GB177736A (en) | 1921-06-09 | 1921-06-09 | Process for treating silicates |
Country Status (2)
Country | Link |
---|---|
CY (1) | CY5A (en) |
GB (1) | GB177736A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE740516C (en) * | 1941-05-16 | 1943-10-22 | Dr Huberta Von Bronsart | Process for the production of fertilizers containing boron |
DE767097C (en) * | 1939-01-08 | 1951-10-31 | Chem Fab Budenheim A G | Process for the production of synthetic zeolites from aluminum silicates |
-
1921
- 1921-06-09 GB GB1589421A patent/GB177736A/en not_active Expired
-
1923
- 1923-03-09 CY CY523A patent/CY5A/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE767097C (en) * | 1939-01-08 | 1951-10-31 | Chem Fab Budenheim A G | Process for the production of synthetic zeolites from aluminum silicates |
DE740516C (en) * | 1941-05-16 | 1943-10-22 | Dr Huberta Von Bronsart | Process for the production of fertilizers containing boron |
Also Published As
Publication number | Publication date |
---|---|
CY5A (en) | 1923-03-09 |
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