Національний Університет Біоресурсів І Природокористування України
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Національний Університет Біоресурсів І Природокористування УкраїниfiledCriticalНаціональний Університет Біоресурсів І Природокористування України
Priority to UAU201505554UpriorityCriticalpatent/UA102977U/en
Publication of UA102977UpublicationCriticalpatent/UA102977U/en
A process for the preparation of cobalt(II)-zinc double tertiary phosphates involves interaction of mixture of initial reactants taken in given ratio, precipitate washing and drying. Hydroxocarbonates of cobalt(II) and zinc are used as initial reactants, which homogenized mechanical mixture in mole ratio of K=Co/Zn=70.0-6.0, 35-38% solution of phosphoric acid and 25-30% solution of hydrogen peroxide in ratio of Co to H2O2=3.0-6.0 are fed simultaneously at continuous mixing for 4-7 hours with maintenance of constant pH within range of 3.1-3.4 to reaction vessel thermostabilized at 25-80 °C containing water acidified with phosphoric acid up to pH value of 3.1-3.4. Precipitate is washed, dried at 40 °C to constant weight.
UAU201505554U2015-06-052015-06-05Process for the preparation of cobalt(ii)-zinc double tertiary phosphates
UA102977U
(en)