STUDY OF SORPTION OF SOME METAL IONS BY THE OBTAINED PHOSPHORIC ACID CATION EXCHANGER OF POLYCONDENSATION TYPE

Authors

Malika BERDIEVA, Tashkent Chemical Technological Institute, Tashkent, UzbekistanFollow
Rano NAZIROVA, Tashkent chemical-technological institute, Tashkent, UzbekistanFollow
Alisher YULDASHEV, Tashkent chemical-technological institute, Tashkent, UzbekistanFollow
Umida SHARIPOVA, Tashkent chemical-technological institute, Tashkent, UzbekistanFollow
Dilmurod AZIMOV, Tashkent Chemical-Technological institute,Tashkent, UzbekistanFollow

Abstract

The purpose of this work is to investigate the sorption of Cu²⁺, Co²⁺, Ni²⁺, UO₂²⁺ ions, etc. depending on the ionic form of the cationite and the pH of the medium on phosphoric acid cationite obtained by forsforylation of a polymer based on cubic waste of the Shurtan gas-chemical complex and a secondary product of the hydrolysis industry – furfural. It was found that copper and UO₂²⁺ ions are best sorbed by cationite when the cationite is in Na form. The UO₂²⁺ ion is sorbed fairly well in the range of pH =2.5-11 when UO₂²⁺ is in Na form. The best desorbent of absorbed copper, Ni, Co ions is sulfuric acid, and for the UO₂²⁺ ion – NaHCO₃. The study of the sorption mechanism of the studied ions showed that Na, Ca – ions are extinguished due to pure ion exchange, copper and Ni ions due to ion exchange and partially due to complexation, whereas UO₂²⁺ ions, only due to complexation.

Recommended Citation

BERDIEVA, Malika; NAZIROVA, Rano; YULDASHEV, Alisher; SHARIPOVA, Umida; and AZIMOV, Dilmurod (2022) "STUDY OF SORPTION OF SOME METAL IONS BY THE OBTAINED PHOSPHORIC ACID CATION EXCHANGER OF POLYCONDENSATION TYPE," CHEMISTRY AND CHEMICAL ENGINEERING: Vol. 2022: No. 1, Article 6.
DOI: https://doi.org/10.34920/cce202216
Available at: https://cce.researchcommons.org/journal/vol2022/iss1/6