不饱和叔醇类捕收剂在含金硫化矿石浮选中的应用论证

IF 1.5 Q3 Materials Science

Nonferrous Metals Pub Date : 2022-06-30 DOI:10.17580/nfm.2022.01.01

T. Yushina, S. A. Shchelkunov, O. Malyshev

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引用次数: 0

摘要

本文给出了用分子力学（MM2）方法计算矿物-浮选试剂体系中所考虑结构的最简单量子化学参数的结果。对不同能态下不饱和醇与金原子相互作用机理进行了理论计算。确定了具有三键的试剂（即叔醇）选择性固定在金和含金矿物的释放颗粒表面的原因，并确定了其规律。介绍了实际浮选研究的结果，这些研究表明，使用乙炔试剂可以选择性地从含金矿石中获得相对于基本浮选指标2.4%至5.0%的额外金回收率。

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Justification of applying collectors from the class of unsaturated tertiary alcohols in flotation of gold-bearing sulphide ores

Given in the paper are the results of calculations of the simplest quantum-chemical parameters of the structures under consideration formed in the mineral–flotation reagent system by the method of molecular mechanics (MM2). Theoretical computations on the interaction mechanism between unsaturated alcohols and gold atoms in various energy states are formulated. There were determined the causes and ascertained the regularities of selective fixation of reagents with triple bonds, which are tertiary alcohols, on the surface of liberated grains of gold and gold-containing minerals. Presented are the results of practical flotation studies, which have showed that the use of acetylene reagents allows one to selectively obtain additional gold recovery from gold-bearing ores from 2.4 to 5.0% relative to the basic flotation indicators.

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来源期刊

Nonferrous Metals METALLURGY & METALLURGICAL ENGINEERING-

CiteScore

1.50

自引率

0.00%

发文量

期刊介绍： Its thematic plan covers all directions of scientific and technical development in non-ferrous metallurgy. The main journal sections include scientific-technical papers on heavy and light non-ferrous metals, noble metals and alloys, rare and rare earth metals, carbon materials, composites and multi-functional coatings, radioactive elements, nanostructured metals and materials, metal forming, automation etc. Theoretical and practical problems of ore mining and mineral processing, production and processing of non-ferrous metals, complex usage of ores, economics and production management, automation of metallurgical processes are widely observed in this journal. "Non-ferrous Metals" journal publishes the papers of well-known scientists and leading metallurgists, elucidates important scientific-technical problems of development of concentrating and metallurgical enterprises, scientific-research institutes and universities in the field of non-ferrous metallurgy, presents new scientific directions and technical innovations in this area. The readers can find in this journal both the articles with applied investigations and with results of fundamental researches that make the base for new technical developments. Publishing according to the approach APC (Article processing charge).