Process for preparing a substantially crystalline sodium alumino

Details Process for preparing a substantially crystalline sodium alumino Process for preparing a substantially crystalline sodium alumino

1978-02-08

1981-02-03

Meros, Edward J.

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

252135, 423328, C01B 3328

Patent

active

042488478

ABSTRACT:
A process for preparing a synthetic substantially crystalline sodium aluminosilicate of the zeolite A type is disclosed. The process comprises rapidly and simultaneously introducing a sodium silicate and a sodium aluminate solution under thorough agitation at a constant by volume ratio which provides for a reaction mixture the content of which is equivalent to a molar ratio of x' Na.sub.2 O/ 1 Al.sub.2 O.sub.3 / y SiO.sub.2 /z' H.sub.2 O wherein x' is from about 6.5 to about 9.0, y is from about 1.7 to about 2.2 and z' is from about 180 to about 250, maintaining the reaction mixture at a temperature of from about 70.degree. to about 100.degree. C. under stirring for a sufficient period of time, usually 1-3 hours, in order to allow the initially amorphous reaction product to crystallize and recovering the substantially crystalline product from the resulting suspension. The essential feature of the process is a continuously maintained constant molar ratio Na.sub.2 O/ Al.sub.2 O/ SiO.sub.2 /H.sub.2 O throughout the reaction mixture during the entire course of the process. The resulting product exhibits a small particle size, an excellent wettability and a high calcium binding power, and is especially suited as a detergent additive.

REFERENCES:
patent: 2882243 (1959-04-01), Milton
patent: 2904607 (1959-09-01), Mattox et al.
patent: 3058805 (1962-10-01), Weber
patent: 3071434 (1963-01-01), Frilette et al.
patent: 3985669 (1976-10-01), Krummel et al.
patent: 4041135 (1977-09-01), Williams et al.
patent: 4071377 (1978-01-01), Schwuger et al.
patent: 4072622 (1978-02-01), Kuhling et al.

Affiliated with

Also associated with

Rating

Process for preparing a substantially crystalline sodium alumino does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for preparing a substantially crystalline sodium alumino, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing a substantially crystalline sodium alumino will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-550773