Open AccessSTUDY OF THE CHEMICAL COMPOSITION OF INSOLUTE RESIDUES ISOLATED FROM NITROPHOSPHORIC ACID SUSPENSIONS
Author(s) -
Bohodir Elbekovich Sultonov,
Akmal Abdurakhmanovich Saparov
Publication year - 2022
Publication title -
chronos journal
Language(s) - English
Resource type - Journals
ISSN - 2658-7556
DOI - 10.52013/2658-7556-63-1-7
Subject(s) - nitric acid , chemistry , residue (chemistry) , chemical composition , phosphoric acid , composition (language) , nuclear chemistry , decomposition , organic chemistry , philosophy , linguistics
The main chemical composition of the insoluble residue from nitric phosphoric acid suspensions, which is formed during the decomposition of the mineralized mass (MM) with nitric acid. The optimal MM:H2O ratio was established for a single washing. The optimal MM:H2O ratio for washing insoluble residue is 1.0:0.6 at 80 and 90°C. In this case, insoluble residues are obtained with the following composition (wt., %): Р2О5tot. — 5.94-6.20; CaOgen. — 14.31-14.94; CaOv.r. — 2.88-3.01; N- 3.31-3.46; SiO2 — 45.07-47.06; Al2O3 — 4.98-5.20; Fe2O3- 4.18-4.36 and SO3- 6.20-7.20.