Continuous process for the manufacture of calcium hypochlorite
CA 1188482 A · Owner: Olin Corporation · Inventors: Duncan, Budd L.; Sakowski, Walter J.; Bajaj, Manoharlal C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A continuous process for the production of calcium hypochlorite comprises admixing a slurry of lime containing insoluble impurities with a saturated calcium hypochlorite solution in a crystallizing zone. An impure slurry of coarse dibasic calcium hypochlorite crystals, small crystals of dibasic calcium hypochlorite, and fine insolubles comprised of unreacted lime particles and fine insolubles in a mother liquor is formed. The slurry is fed to the intermediate section of a separation zone. An aqueous sodium chloride elutriant is fed to the lower section of the separation zone to contact the slurry and to separate a slurry of fine insolubles and small crystals of dibasic calcium hypochlorite …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted June 11, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 11, 2002.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.