JPS57111229A - Production of alkali silicate - Google Patents
Production of alkali silicateInfo
- Publication number
- JPS57111229A JPS57111229A JP18378980A JP18378980A JPS57111229A JP S57111229 A JPS57111229 A JP S57111229A JP 18378980 A JP18378980 A JP 18378980A JP 18378980 A JP18378980 A JP 18378980A JP S57111229 A JPS57111229 A JP S57111229A
- Authority
- JP
- Japan
- Prior art keywords
- silica rock
- 1w10hr
- microns
- impurities
- digested
- 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.)
- Pending
Links
Landscapes
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
PURPOSE: After it is previously treated with heat, low-quality silica rock containing components to become suspensoid is digested in an autoclave together with a caustic alkali to produce high-purity alkali silicate through a wet process, even when silica rock with impurities is used as a starting material.
CONSTITUTION: A silica rock containing 1W10wt% impurities in the form of oxides or sulfides of Al, Mg or other metallic elements is first calcined at 200W 1,500°C for 1W10hr where the particle size of the silica rock is suitably about 4,000 microns, preferably 100W1,000 microns. Then, the resultant silica rock powder is digested together with a caustic alkali in an autoclave at 3W30kg/cm2 and 130W240°C for 1W10hr. Resultingly, sodium silicate of 2.0W3.0 SiO2/Na2O is botained in 80W95% reaction rate and the suspensoid taken into the product can be lowered to about 0W10 ppm.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18378980A JPS57111229A (en) | 1980-12-26 | 1980-12-26 | Production of alkali silicate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18378980A JPS57111229A (en) | 1980-12-26 | 1980-12-26 | Production of alkali silicate |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57111229A true JPS57111229A (en) | 1982-07-10 |
Family
ID=16141952
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18378980A Pending JPS57111229A (en) | 1980-12-26 | 1980-12-26 | Production of alkali silicate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57111229A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63500776A (en) * | 1985-08-24 | 1988-03-24 | クヌ−ト・イエ−ガ−・マ−ケッテイング・ウント・プロダクション・ビッグ・パック・ゲ−・エム・ベ−・ハ− | A carrier for carrying loads on the back, especially for rucksacks |
CN106115723A (en) * | 2016-06-07 | 2016-11-16 | 安徽工业大学 | A kind of method utilizing blast furnace slag preparation to contain Al3+ waterglass |
-
1980
- 1980-12-26 JP JP18378980A patent/JPS57111229A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63500776A (en) * | 1985-08-24 | 1988-03-24 | クヌ−ト・イエ−ガ−・マ−ケッテイング・ウント・プロダクション・ビッグ・パック・ゲ−・エム・ベ−・ハ− | A carrier for carrying loads on the back, especially for rucksacks |
CN106115723A (en) * | 2016-06-07 | 2016-11-16 | 安徽工业大学 | A kind of method utilizing blast furnace slag preparation to contain Al3+ waterglass |
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