GB1492304A - Process for the preparation of anhydrous alkali metal metasilicates - Google Patents

Process for the preparation of anhydrous alkali metal metasilicates

Info

Publication number
GB1492304A
GB1492304A GB1829875A GB1829875A GB1492304A GB 1492304 A GB1492304 A GB 1492304A GB 1829875 A GB1829875 A GB 1829875A GB 1829875 A GB1829875 A GB 1829875A GB 1492304 A GB1492304 A GB 1492304A
Authority
GB
United Kingdom
Prior art keywords
alkali metal
anhydrous
metal metasilicates
granulating
anhydrous alkali
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
GB1829875A
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.)
ZINKWIT NL BV
Original Assignee
ZINKWIT NL BV
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 ZINKWIT NL BV filed Critical ZINKWIT NL BV
Publication of GB1492304A publication Critical patent/GB1492304A/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
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/20—Silicates
    • C01B33/32—Alkali metal silicates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)

Abstract

1492304 Anhydrous alkali metal metasilicates ZINKWIT NEDERLAND BV 1 May 1975 [6 May 1974] 18298/75 Heading ClA Anhydrous alkali metal metasilicates are prepared from sand and alkali metal carbonate by granulating the mixture and then thermally treating the granulated mix in a furnace below the melting point of the alkali metal metasilicate. In particular, ground silver sand of particle size not greater than 50 Ám and anhydrous Na 2 CO 3 may be mixed in suitable quantities to yield a molar ratio of SiO 2 /Na 2 O in the product from 0À8 to 1À1; (b) compacting the mix between rollers at a pressure of 3-11 tonnes/cm. and (c) granulating the resulting plates or briquettes, the granules 0À3 to 3 mm. in size being separated and thermally treated to yield the sodium metasilicate. The thermal treatment may be undertaken in a fluidized bed at 650‹ to 1050‹ C.
GB1829875A 1974-05-06 1975-05-01 Process for the preparation of anhydrous alkali metal metasilicates Expired GB1492304A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7406064A NL7406064A (en) 1974-05-06 1974-05-06 PROCESS FOR THE PREPARATION OF ANHYDROUS ALKALINE TASILICATES.

Publications (1)

Publication Number Publication Date
GB1492304A true GB1492304A (en) 1977-11-16

Family

ID=19821307

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1829875A Expired GB1492304A (en) 1974-05-06 1975-05-01 Process for the preparation of anhydrous alkali metal metasilicates

Country Status (5)

Country Link
BE (1) BE828774A (en)
DE (1) DE2519265A1 (en)
FR (1) FR2270205B1 (en)
GB (1) GB1492304A (en)
NL (1) NL7406064A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3100942C2 (en) * 1981-01-14 1982-10-14 Reinhard Dr. Dipl.-Chem. 8920 Schongau Matouschek Process for the preparation of crystalline sodium silicates and crystallized forms of hydrated silica and their uses
CA1241523A (en) * 1984-09-21 1988-09-06 Alfred J.P. Flipot Process for the preparation of lithium silicate

Also Published As

Publication number Publication date
NL7406064A (en) 1975-11-10
FR2270205B1 (en) 1979-05-11
FR2270205A1 (en) 1975-12-05
BE828774A (en) 1975-11-06
DE2519265A1 (en) 1975-11-20

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee