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YU200190A - PROCEDURE FOR OBTAINING SODIUM SILICATE - Google Patents

PROCEDURE FOR OBTAINING SODIUM SILICATE

Info

Publication number
YU200190A
YU200190A YU200190A YU200190A YU200190A YU 200190 A YU200190 A YU 200190A YU 200190 A YU200190 A YU 200190A YU 200190 A YU200190 A YU 200190A YU 200190 A YU200190 A YU 200190A
Authority
YU
Yugoslavia
Prior art keywords
sodium silicate
temperature
water
furnace
obtaining
Prior art date
Application number
YU200190A
Other languages
Serbo-Croatian (sh)
Inventor
G. Schimmel
M. Kotzian
H. Patner
A. Tapper
Original Assignee
Hoechst Aktiengesellschaft
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 Hoechst Aktiengesellschaft filed Critical Hoechst Aktiengesellschaft
Priority to SI9012001A priority Critical patent/SI9012001A/en
Priority to HRP-2001/90A priority patent/HRP921197B1/en
Publication of YU200190A publication Critical patent/YU200190A/en

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  • Silicates, Zeolites, And Molecular Sieves (AREA)

Abstract

POSTUPAK ZA DOBIJANJE NATRIJUM SILIKATA, za dobijanje kristalnog natrijum silikata slojevite strukture, s molekil odnosom SO2 i Na2O (1,9 do 2,1) : 1 i sadržajem vode od 0,3 mas.% iz rastopa stakla sa najmanje 20 mas.% vrste materije tretiramo rastop vodenog stakla sa peskom sa natrijum hidroksidom u molskom odnosu SO2 i Na2O (2,0 do 2,3) : 1 pri temperaturi od 180В°C do 240В°C i pritisku od 10-30 vol. Tu rastopinu topljenog stakla ubacujemo u rasprošenu zonu za sušenje sa vrućim zrnom od 200-300В°C, u vremenu od 10 do 25 s i temperaturi otpadnog plina koji napušta zonu za rasprašavanje na 90-130В°C pri čemu nastoje praškasti amorfni naterijev silikat sa sadržajem vode od 15 do 30 mas. % i nasipnom masom od 300 g/l. Praškasti, amorfni natrijev silikat, koji sadrži vodu, stavljamo u koso postavljenu aparaturu za pokretanje čvrstih materija u raspacijonu cevnu peć u kojoj tretiramo natrijev silikat sa dimnim plinovima na temperaturi od 500-850В°C, 1-60 min, do stvaranja kristalnog natrijum silikata. Rotaumona peć je tako izolovana da temperatura spoljnog zida je 60В°C. Dobijeni kristalni natrijev silikat koji izlazi iz peći mehanički do veličine zrna od 0,1 do 12 mm.PROCEDURE FOR OBTAINING SODIUM SILICATE, for obtaining crystalline sodium silicate of layered structure, with a molecular ratio of SO2 and Na2O (1.9 to 2.1): 1 and a water content of 0.3% by weight from the glass melting of at least 20% by weight types of matter, we treat the melting of water glass with sand with sodium hydroxide in a molar ratio of SO2 and Na2O (2.0 to 2.3): 1 at a temperature of 180V ° C to 240V ° C and a pressure of 10-30 vol. This solution of molten glass is placed in a sprayed drying zone with a hot grain of 200-300V ° C, in a time of 10 to 25 s and the temperature of the waste gas leaving the spray zone at 90-130V ° C, whereby powdered amorphous sodium silicate with content water from 15 to 30 wt. % and bulk density of 300 g / l. Powdered, amorphous sodium silicate, containing water, is placed in an obliquely placed apparatus for moving solids in a dispensing tube furnace in which we treat sodium silicate with flue gases at a temperature of 500-850V ° C, 1-60 min, until the formation of crystalline sodium silicate . The Rotaumona furnace is so insulated that the temperature of the outer wall is 60V ° C. The obtained crystalline sodium silicate coming out of the furnace mechanically to a grain size of 0.1 to 12 mm.

YU200190A 1989-10-25 1990-10-02 PROCEDURE FOR OBTAINING SODIUM SILICATE YU200190A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI9012001A SI9012001A (en) 1989-10-25 1990-10-24 Method for preparation of sodium silicates
HRP-2001/90A HRP921197B1 (en) 1989-10-25 1992-11-06 A process for the preparation of sodium silicates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3935464 1989-10-25

Publications (1)

Publication Number Publication Date
YU200190A true YU200190A (en) 1994-09-09

Family

ID=47470738

Family Applications (2)

Application Number Title Priority Date Filing Date
YU200190A YU200190A (en) 1989-10-25 1990-10-02 PROCEDURE FOR OBTAINING SODIUM SILICATE
YU200090A YU200090A (en) 1989-10-25 1990-10-24 PROCEDURE FOR OBTAINING SODIUM SILICATE

Family Applications After (1)

Application Number Title Priority Date Filing Date
YU200090A YU200090A (en) 1989-10-25 1990-10-24 PROCEDURE FOR OBTAINING SODIUM SILICATE

Country Status (1)

Country Link
YU (2) YU200190A (en)

Also Published As

Publication number Publication date
YU200090A (en) 1994-09-09

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