Open AccessSTUDY OF THE CONCENTRATION AND FILTRATION OF LEAD-ZINC CONCENTRATES IN THE PRESENCE OF NON-INOGENEOUS POLYMERS AND THEIR MIXTURES WITH ANION POLYELECTROLITES
Author(s) -
N. K. Tusupbaev,
Zhadyra Yerzhanova,
S.M. Bilyalova,
N. Mukhatayeva,
A. Batyrbaeva,
N. Amantai
Publication year - 2018
Publication title -
challenges of science
Language(s) - English
Resource type - Conference proceedings
DOI - 10.31643/2018.025
Subject(s) - flocculation , carboxymethyl cellulose , filtration (mathematics) , zinc , chemistry , coagulation , polymer , chromatography , chemical engineering , sodium , organic chemistry , psychology , statistics , mathematics , psychiatry , engineering
The flocculation of flotation concentrates in the presence of anionic polyelectrolytes was studied, while filtration of lead concentrate with a density of 45%, a positive effect was obtained with the consumption of the flocculant carboxymethyl cellulose (CMC) 28-85 g / t. In the case of filtration of zinc concentrates with a density of 41%, good results were obtained at a flow rate of 44-104 g / t. The flotation kinetics regularities in the presence of individual non-ionic polymers (PEG, PEO and PVA) are studied using the example of flotation waste suspension. With increasing electrolyte concentration in the system, the flocculation rate in comparison with the coagulation rate first increases, then decreases more and more. Experiments have been conducted on the filtration of lead and zinc concentrates on a laboratory vacuum filter in the presence of mixtures of nonionic polymers (PEO, PEG and PVA) and anionic flocculants (PAA, PMAC and CMC). In the presence of PEO + CMC mixtures, the maximum sedimentation rate of the lead concentrate was 2.6 cm / sec, and in the case of zinc concentrate -2.1 cm / sec. When mixtures of PEO + PAA and PEO + PMAC were used, the maximum sedimentation rate of lead and zinc concentrates ranged from 1.4 to 1.8 cm / sec. When the lead concentrate was filtered with a density of 48%, a positive effect was obtained with the consumption of the flocculant PEO + CMC 22-91 g / t. In the case of filtration of zinc concentrates with a density of 42%, good results were obtained at a flow rate of 31-112 g / t.