ACADEMICIA: An International Multidisciplinary Research Journal
  • Year: 2020
  • Volume: 10
  • Issue: 10

Phosphoric-potash fertilizers based on sulfuric acid processing of phosphorite flour and potassium chloride

1Associate Professor, Candidate of Technical Sciences, Branch of Russian State University Named After I. M. Gubkin, Tashkent, Uzbekistan

2Doctor of Technical Sciences (PhD), Department of “Technology of Primary Processing of Agricultural Products”, Fergana Polytechnic Institute, Fergana, Uzbekistan

3Associate Professor, Department of Chemical Technology, Candidate of Chemical Sciences Fergana Polytechnic Institute, Fergana, Uzbekistan

Online published on 1 December, 2020.

Abstract

For the scientific substantiation of the technology for producing PP-fertilizers, the process of decomposition of unprotected phosphorite flour with concentrated sulfuric acid at its norm of 50-90% of stoichiometry for producing monocalcium phosphate was studied. The resulting dry decomposition product was treated with a saturated potassium chloride solution. Studies show that an increase in the sulfuric acid norm leads to an increase in the commercial properties of granulated PP fertilizers.

Keywords

Biogenic Elements, Complex Fertilizers, Solubility, Potassium Metaphosphate, Sulfuric Acid, Decomposition, Granule