Chemistry of inorganic compounds – Halogen or compound thereof – Ternary compound
Patent
1982-02-22
1983-06-28
Hearn, Brian E.
Chemistry of inorganic compounds
Halogen or compound thereof
Ternary compound
C01B 1106
Patent
active
043905129
ABSTRACT:
A continuous integrated process for the production of neutral calcium hypochlorite in which crystals of by-product sodium chloride are more easily separated from the calcium hypochlorite product is described. The process includes diluting an aqueous slurry of sodium hydroxide, lime and bleach mother liquor with aqueous salt solution saturated with calcium ion and sodium chloride and chlorinating the resulting aqueous admixture in the presence of a seed bed of sodium chloride crystals and calcium hypochlorite crystals at temperatures less than 35.degree. C., e.g., 15.degree.-20.degree. C. A suspension of readily separable, sodium chloride crystals and calcium hypochlorite crystals in chlorinator liquor is conveyed to a classification zone where the sodium chloride and calcium hypochlorite crystals are separated.
REFERENCES:
patent: 1718284 (1929-06-01), George et al.
patent: 1718285 (1929-06-01), George
patent: 1937613 (1933-12-01), Weber, Jr.
patent: 2007429 (1935-07-01), Klopstock et al.
patent: 2368042 (1945-01-01), Robson
patent: 2441337 (1948-05-01), Sprauer
patent: 2469901 (1949-05-01), Sprauer
patent: 3251647 (1966-05-01), Nicolaisen
patent: 3572989 (1971-03-01), Tatara et al.
patent: 3767775 (1973-10-01), Tatara et al.
patent: 3895099 (1975-07-01), Sakowski
patent: 3950499 (1976-04-01), Miyashin et al.
patent: 3954948 (1976-05-01), Sakowski
patent: 4258024 (1981-03-01), Hoffer et al.
patent: 4328200 (1982-05-01), Welch
Carbaugh John E.
Crawford Roger A.
Loehr Clifford E.
Welch Cletus N.
Hearn Brian E.
PPG Industries Inc.
Stein Irwin M.
LandOfFree
Process for producing calcium hypochlorite 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 producing calcium hypochlorite, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing calcium hypochlorite will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-933207