C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
23/186
C01B 33/26 (2006.01) B01F 7/04 (2006.01) B01J 19/18 (2006.01) C01B 39/02 (2006.01)
Patent
CA 1121976
A B S T R A C T A process for the continuous production of an aqueous, alkaline suspension of x-ray amorphous sodium alum- inosilicate having a small particle size of at least 99% by volume of a particle size of less than 50 µ, suitable for con- version into zeolite sodium aluminosilicate of the smallest particle sizes, by mixing an aqueous sodium aluminate solution with an aqueous sodium silicate solution in the presence of excess sodium hydroxide solution at a temperature in the range of from 20° to 103°C, where the solutions being mixed have a mathematical total molar ratio of: 1.5 to 9 Na2O:1 A12O3:1 to 7 SiO2:40 to 400 H2O consisting essentially of the steps of continuously passing one of said two aqueous solutions into the first zone of a progressively, separately zoned mixing area, continuously splitting the other aqueous solution into at least three par- tial streams, continuously passing the first of said partial streams into said first zone, continuously passing the mixed contents of said first zone into the second zone of a progres- sively, separately zoned mixing area, continuously passing the remainder of said partial streams separately into down- stream zones of said progressively, separately zoned mixing area, where said mean holding time of the reaction mixture in each of said separately zoned mixing areas is at least 5 seconds and sufficient to effect substantial mixing of said contents. - A -
347661
Carduck Franz-Josef
Christophliemk Peter
Wust Willi
Deutsche Gold Und- Silber-Scheideanstalt Vormals Roessler
Henkel Kommanditgesellschaft Auf Aktien
Macrae & Co.
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