PROCESS FOR THE PREPARATION OF SOLID SOLUTION OF MANGANESE (II) AND ZINC HYDROPHOSPHATES

摘要

A process for the preparation of solid solution of manganese (II) and zinc hydrophosphates by interaction of mixture of manganese (II) and zinc hydroxycarbonates, taken in fixed ratio with solution of phosphate acid, filtering of sludge and drying. Homogenized mixture of manganese (II) and zinc hydroxycarbonates with mole ratio of K=Mn/Zn=70.0-0.8 and hydroxylamine chloride in ratio of 0.12-0.16 to the content of Mn in composition of hydroxycarbonates are given to the solution of stoichiometric quantity of 50-70 % phosphate acid, heated to 40-50 °C to the formed suspension methylethylketone is added in quantity of HPO:CHCOCH=1.0-1.2, sludge is filtered and dried at 40 °C to constant mass.