Умумий ва ноорганик кимё институти
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avtoreferat yusupov f.m
The fifth chapter is devoted to theme «Development of novel surfactants and high molecular substances», i.e. development surfactants for metallurgy. 1. The foaming flotation reagent from local anthropogenic raw materials was developed for enrichment sulfide ore instead of analog Т-92 (Russia). The following materials were applied: wastes of ethanol production of JSC «Navoiazot», JSC «Elektrohimzavod», LLC Sumono, polyethylene from Shurtan gas chemical complex. Ethyl alcohol (EA), isoamyl alcohol (IA) and crotonic aldehyde (CA), crotonic faction (CF), ether aldehyde fraction (EAF), fusel oil (FO), monobutyl ether of polyglycols (MEP), α-olefine С 10 -С 20 from a withdrawal of production of a low-polymeric fraction of polyethylene (LPFP) were used as well. Synthesis of surfactants №1-5 was carried out by CA, CF with EA, IA, EAF, FO (NH 4 Cl catalyst, H 2 SO 4 for vapors of CA: IA) at 75 °C. - 1,1,3- tri ethyl butane (TEB) (CA with EA), (№1); - Tri isoamyl butan (TIB) (CA: IA = 1: 5 mol / mol, time 6 h.), (№2); - based on CF and EAF(CF: EAF = 1: 5 mol / mol, 6 h), (№3); - based CF and SM trimonospirtbutan (TMSB), (№4); - Based on propylene oxide and butyl alcohol (POBA), (№5); - PT (olefin sulfonate) fraction C 10 -C 20 polyethylene waste, (№6); - A standard foaming agent T-92 (№7). The object of presented study was to compare the colloidal phase, flotation properties synthesized surfactants with analogue T-92. The surface-active properties were studied as well. It was established that surfactants №1-7 reduce the solution’s surface tension (σ). TNAB (№2) and TMSB (№4) had the minimum value of σ. According to surface tension of 65 surfactants, including the studied foaming agents, PT-6, PT-7, AT-3 and AT-4 were selected which were similar to properties of the T-92 (Fig. 4). Among them AT-4 and PT-7 have more surface-active effect. By this effect, they have arranged in a row: PT-6 Download 1.67 Mb. Do'stlaringiz bilan baham: |
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