Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group iiia metal or beryllium
Patent
1976-11-12
1978-07-25
Meros, Edward J.
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group iiia metal or beryllium
252 89R, 252131, 423328, 423329, C01B 3328, C11D 918
Patent
active
041029771
ABSTRACT:
A detergent builder consisting essentially of an inorganic fine powder composed mainly of an alkali metal aluminosilicate having an X-ray diffraction pattern substantially the same as that of zeolite of the type A and having a degree of crystallization in the range of from 35 to 75%, wherein the inorganic fine powder has a primary particle size smaller than 1 .mu. and a secondary particle size smaller than 4 .mu., the inorganic fine powder has a buffer capacity (S) of at least 132 ml/100 g of solids, the buffer capacity being expressed by an amount of hydrochloric acid necessary for lowering the pH of a 1% aqueous dispersion of said inorganic fine powder from 9.0 to 6.75 when the dispersion is titrated with 0.4N hydrochloric acid at a rate of 20 to 50 ml/hr, and wherein the inorganic fine powder has a calcium ion binding property (C. I.) of at least 70 mg/g as expressed as CaO.
REFERENCES:
patent: 3185544 (1965-05-01), Maher
patent: 3390958 (1968-07-01), Howell
patent: 3393045 (1968-07-01), Maher
patent: 3985669 (1976-10-01), Krummel et al.
patent: 4041135 (1977-09-01), Williams et al.
Sotirova et al., "Chemical Abstracts," vol. 77, 1972, 77363t.
Imafuku Shigehisa
Kurosaki Hideaki
Ogawa Masahide
Sugahara Yujiro
Usui Koichi
Meros Edward J.
Mizusawa Kagaku Kogyo Kabushiki Kaisha
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