Национальный Университет Биоресурсов И Природопользования Украины
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A process for the preparation of double monosubstituted zinc-cobalt phosphates by the interaction of phosphate acid with mixture of hydroxycarbonates, taken in fixed ratio. Homogenized mixture of zinc-cobalt (II) hydroxycarbonates with mole ratio of K=Zn/Co=9.3-0.15 and hydrazine chloride in quantity of 0.1-0.05 to the content of Co in composition of hydroxycarbonates at 20-30 °C for 2-3 hours are given to the solution of stoichiometric quantity of 70-87 % phosphate acid and ethanol, taken in quantity of HPO:CHOH=1.0-2.5, the sludge is filtered and dried at 40 °C to constant mass.
UAU201306650U2013-05-282013-05-28Process for the preparation of double monosubstituted zinc-cobalt phosphates
UA85588U
(en)
Crystalline ferric phosphate material comprising: less than 1000 ppm of sulfate ion, where the molar proportion of pa fe is comprised from 1.001 to 1.05, said ferric phosphate has a surface area of 25 m2 / g to 65 m2 / g and less than 0.8 by weight of metallic or magnetic impurities; and manufacturing methods.