CAJ | 학술논문

某低品位多金属金矿中含有金、银、铅、铁等多种有价元素，有用矿物嵌布关系复杂且粒度较细，含量较低但综合利用价值较高。原矿在磨矿细度-0．074mm含量60％、捕收剂丁黄药和丁铵黑药用量分别为64g/t、13g/t的条件下进行混合浮选，获得金、银、铅混合精矿。混合精矿在pH值为11、矿浆浓度40％、氰化钠用量5kg/t、浸出时间36h的条件下进行氰化浸出获得金、银，对原矿金、银回收率分别为67．24％、38．30％。浸渣在抑制剂氧化钙用量1500g/t、捕收剂乙硫氮和丁铵黑药用量分别为40g/t、10g/t的条件下进行浮铅试验，获得了对原矿铅品位45．32％、回收率53．98％的铅精矿和对原矿回收率为3．16％、5．07％的金、银，金、银总回收率分别为70．40％、43．37％。混合浮选尾矿在磁场强度为111kA/m的条件下，通过一段粗选一段精选，获得了铁品位56．30％、回收率12．76％的铁精矿。采用此工艺综合回收了有价金属，获得了较好的选别指标，为该矿的开发利用提供了重要依据。
모저품위다금속금광중함유금、은、연、철등다충유개원소，유용광물감포관계복잡차립도교세，함량교저단종합이용개치교고。원광재마광세도-0．074mm함량60％、포수제정황약화정안흑약용량분별위64g/t、13g/t적조건하진행혼합부선，획득금、은、연혼합정광。혼합정광재pH치위11、광장농도40％、청화납용량5kg/t、침출시간36h적조건하진행청화침출획득금、은，대원광금、은회수솔분별위67．24％、38．30％。침사재억제제양화개용량1500g/t、포수제을류담화정안흑약용량분별위40g/t、10g/t적조건하진행부연시험，획득료대원광연품위45．32％、회수솔53．98％적연정광화대원광회수솔위3．16％、5．07％적금、은，금、은총회수솔분별위70．40％、43．37％。혼합부선미광재자장강도위111kA/m적조건하，통과일단조선일단정선，획득료철품위56．30％、회수솔12．76％적철정광。채용차공예종합회수료유개금속，획득료교호적선별지표，위해광적개발이용제공료중요의거。
A gold ore containing gold ,silver ,lead ,iron elements is of the characteristics of complex relationship ,fine dissemination grain sizes ,low grades and high comprehensive utilization value .First ,bulk flotation that grinding fineness was - 0 .074mm60% and xanthate (64g/t ) and ammonium dibutyl dithiophosphate (13g/t) were used as collectors was applied and a bulk concentrate containing gold ,silver , lead was obtained .Second ,gold and silver were recoveried efficiently with the recovery of 67 .24% and 38 . 30% respectively for run-of-mine with cyanide leaching from bulk concentrate on condition that the pH was 11 ,the pulp density was 40% ,the dosages of sodium cyanide was 5kg/t and the leaching time was 36h . Third ,while calcium oxide(1500g/t) as suppressant and diethyldithiocarbamate(40g/t) and ammonium dibutyl dithiophosphate (10g/t ) as collectors were used ,lead flotation test from leaching residue was conducted that lead concentrate (Grade:45 .32% ,Recovery rate:53 .98% ) was obtained and the recovery of gold ,silver was 3 .16% and 5 .07% respectively and the corresponding total recovery was 70 .40% and 43 .37% respectively .Finally , magnetic separation from bulk flotation tailings was used through the processing of one stage roughing and one stage cleaning under the condition that magnetic intensity was 111kA/m and iron concentrate (Grade:56 .30 % ,Recovery rate 12 .76% ) was obtained .gold ,silver ,lead , iron elements were recoveried efficiently and separating index was fine through the mineral processing which provides important basis for developing the deposit .