Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing
Patent
1976-11-12
1979-01-02
Spear, Jr., Frank A.
Chemical apparatus and process disinfecting, deodorizing, preser
Process disinfecting, preserving, deodorizing, or sterilizing
210 57, 210 58, 422 6, C23F 1110
Patent
active
041325265
ABSTRACT:
The invention is directed to a method of inhibiting the destructive effect of water in contact with an asbestos-cement containing structure due to the leaching of the water soluble components of the cement, e.g., calcium and magnesium, which comprises the addition to the water of a material which will change the interfacial surface of the cement structure such that the overall solubility of soluble components of the cement will be reduced. The materials which will be suitable for the purpose are water soluble phosphates, water soluble phosphonic acid derivatives, water soluble polymers of acrylic acid, water soluble silicates, and mixtures thereof.
REFERENCES:
patent: 3060210 (1962-10-01), Groote
patent: 3085916 (1963-04-01), Zimmie
patent: 3235324 (1966-02-01), Merriman
patent: 3463736 (1969-08-01), Booth
patent: 3487018 (1969-12-01), Troscinski
patent: 3578589 (1971-05-01), Hwa
patent: 3658710 (1972-04-01), Puckorius
patent: 3806451 (1974-04-01), Tate
patent: 3837803 (1974-09-01), Carter et al.
patent: 3965028 (1976-06-01), O'Brien
Betz, Handbook of Industrial Water Conditioning, 7th Edition, 1976, 195.
Chestang Bobby G.
Schwarz Richard C.
Betz Laboratories Inc.
Markowitz Steven H.
Ricci Alexander D.
Spear, Jr. Frank A.
Therkorn Ernest G.
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