Continuous finely divided aluminosilicate prodn. - from aq. silicate and aluminate solns. in spray device, useful, in cleaning compsns

Continuous prodn. of finely-divided, water-insoluble, water-contg. silicates of formula (I) x1Na2O.x2K2O.Al2O3.y SiO2 (x1 = 0.2-1.4; x2 = 0.005-0.5; y = 1.5-10; x1 + x2 = 0.3-1.5, pref. about 1) comprises mixing aq. solns. of Na and/K aluminate (A) and Na and/or K silicate (B) in presence of excess...

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Main Authors STEIN,WERNER,.DR, CHRISTOPHLIEMK,PETER,.DR
Format Patent
LanguageEnglish
German
Published 10.07.1980
Edition3
Subjects
ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES
CANDLES
CHEMISTRY
COMPOUNDS THEREOF
DETERGENT COMPOSITIONS
DETERGENTS
FATTY ACIDS THEREFROM
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
RECOVERY OF GLYCEROL
RESIN SOAPS
SOAP OR SOAP-MAKING
USE OF SINGLE SUBSTANCES AS DETERGENTS
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Summary:Continuous prodn. of finely-divided, water-insoluble, water-contg. silicates of formula (I) x1Na2O.x2K2O.Al2O3.y SiO2 (x1 = 0.2-1.4; x2 = 0.005-0.5; y = 1.5-10; x1 + x2 = 0.3-1.5, pref. about 1) comprises mixing aq. solns. of Na and/K aluminate (A) and Na and/or K silicate (B) in presence of excess NaOH, then filtration. Molar compsns. of (A) and (B) are resectively: Al2O3:0-10 Na2O:0-5 K2O:20-200 H2O with Na2O + K2O:Al2O3 > 1; and SiO2: 0-10 Na2O:0-5 K2O: 5-200 H2O with Na2O + K2O:SiO2 > 0.2 and the overall compsn. of the mixt. 1.5-15 Na2O: 0.005-5 K2O: Al2O3: 1-15 SiO2:50-400 H2O. Two solns. are mixed and atomised at 0-103 (0-70) degrees C so that they first react in spray streams to form an X-ray amorphous gel. Final prod. contains 0.1 wt.% particles over 25 mu m. (I) are useful as replacement for phosphates in washing, rinsing and cleaning compsns.
Bibliography:Application Number: DE19782856209