GB177736A - Process for treating silicates - Google Patents

Process for treating silicates

Info

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
Application number
GB1589421A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB1589421A priority Critical patent/GB177736A/en
Publication of GB177736A publication Critical patent/GB177736A/en
Priority to CY523A priority patent/CY5A/en
Expired legal-status Critical Current

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.
GB1589421A 1921-06-09 1921-06-09 Process for treating silicates Expired GB177736A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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