Method for obtaining sulfide zinc concentrates with lowered lead content from the floatation wastes remaining after the Zn-Pb ore enrichment

摘要

revealed way receive selective zinc concentrate with waste flotacyjnych arising after the enrichment process of zn - pb.how is that a water suspension of waste flotacyjnych density 1550 + / - 50 g / dm3 is subjected by the time 15 minutes flotation collective galeny and markazytu with added 300 g / mg zinc sulphate, 10 g / mg, sulphide tru00f3jizobutylofosfiny, 15 g / mg ksantogenianu isoamyl and 35 g / mg ksan togenianu ethyl and reagent spieniaju0105cego in quantities of 10 g / mg.the product foam equipment flotation collective galeny and markazytu (2), which is the final waste heading to the tailings pond (13), and the product is subject to classification in ventricular hydrocyklonie (3), in which the product spillages is secreted grains with dimensions below 0.12 mm. grain higher product density wylewowego ok.2100 + / - 100 g / dm3 is heading to domielenia in ball mill (4) where after domieleniu trouble them to tank (1) for re transmission control flotation collective galeny and markazytu (2).this product is to hydrocyklonu ventricular phase ranking (3) from which the separated product przelewowy heading to odmulania in hydrocyklonie odmulaju0105cym (5) receiving a fraction of the muu0142owu0105 grain particle size 0,02 mm, which is ok. 15 - 20% by weight of waste process. so the product obtained with ok.1160 + / - 20 g / dm3 is subjected to flotation a (6) with the addition of 250 g / mg of sodium silicate, flotowanego material as depresora clay minerals and iron hydroxides, 400 g / mg of copper sulphate as an activator and a 10 g / mg of flotation reagent a, 15 g / mg - isopropyl - n - etylenokarbaminianu, 10 g / mg ksantogenianu ethyl and 5,0 g / mg reagent spieniaju0105cego leading by a flotation time 15 minutes.the product of this part of the process of flotation waste heading to the tailings pond (13), and the product of this part of the flotation foam equipment is added to the nadawy first grade flotation cleaning a (9),after the product wylewowy with hydrocyklonu odmulaju0105cego (5) after dilution with water density 1380 + / - 30 g / dm3 is nadawu0119 to flotation core a (7) with the addition of copper sulphate as a activator of 250 g / mg flotowanego materialand then 5 g / mg reagent assisting and 10 g / mg - isopropyl n - etylenokarbaminianu as basic a a and 5 g / mg corflotu as reagent spieniaju0105cego, with a main stage flotation is by the time 10 minutes,foam equipment and product of this stage is subjected to two-stage flotation cleaning (9 and 10) carried out at elevated ph environment in different stages of 9.0 and 9.5 respectively obtained with additional calcium hydroxide with selective concentrate blendowy which of the clergy isn them in further stages to the process of compacting (11) and filtration (12).