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Application filed by Dina P Uzunova, Snezhana Kh Dimova, Ljudmil K Velev, Nanko K Nankov, Pesho S BozadzhievfiledCriticalDina P Uzunova
Priority to BG94389ApriorityCriticalpatent/BG51292A1/en
Publication of BG51292A1publicationCriticalpatent/BG51292A1/en
Calcium hydrogenphosphate dihydrate is applicable in the agricultural industry as forage. The method of its preparation presupposes continuity of the process, where the final product has a constant and uniform composition. According to the method, the precipitating mixture, derived by mixing concentrated hydrochloric acid and carbonate slurry, containing 300 to 500 g/l of CaCO3, with pH of 4.5 to 6, or by mixing distilling liquid from the soda production and carbonate slurry from the purification of raw brine, reacts with phosphorus-containing solution with P2O5 from 8 to 25 per cent, by weight, at a weight ratio of 5/1 to 10/1.
BG94389A1991-05-101991-05-10Method for the preparation of calcium hydrogenphosphate dihydrate
BG51292A1
(en)
Process for synthesizing bimetal lamellar compound by comprehensively utilizing high-phosphorus-and-chlorine-content mixed wastewater in recycling mode