Preparation of improved zeolites

Details Preparation of improved zeolites Preparation of improved zeolites

1976-09-28

1978-02-21

Meros, Edward J.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iiia metal or beryllium

423328, C01B 3328

Patent

active

040752801

ABSTRACT:
There is disclosed a process for preparation of improved zeolites such as zeolite A having increased ion exchange capacities, and improved usefulness in detergent and water purification applications, which comprises reaction of a calcined clay under conditions of high shear in contact with a portion of an alkali metal hydroxide solution, thereafter gradually increasing the temperature of the resulting mixture while adding the additional amount of alkali metal hydroxide solution under conditions of high shear, and recovering the zeolite product. Also disclosed is a process for addition of an iron complexing agent to the mixture to improve color of the final product.

REFERENCES:
patent: 3114603 (1963-12-01), Howell
patent: 3185544 (1965-05-01), Maher
patent: 3398008 (1968-08-01), Jacobs et al.
patent: 3985669 (1976-10-01), Krummel et al.
Sotirova et al. "Chemical Abstracts" vol. 77, 1972, 77363t.

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