The processing capacity of a gold concentrator in Shandong mine is 10000 t/d, and the production process one-stage grinding + one roughing, two sweeping finishing adopted. fineness 50%-55% -200 mesh content, flotation concentration 40%-45%, dosage butyl xanthate used as collector 120 (g/t). amount QX-3 foaming agent 40 (g/t), field recovery rate 93.74%. Because mixing tailings backfill into raw...

The possibility of using a thermomorphic polymer with phosphine group as collecting reagent for the selective concentration tin during flotation enrichment sulfide-tin tails was first investigated in work. A detailed description experimental scheme ore tailings and mode are given. main mineral is cassiterite, highly brittle inclined to sludging, which leads large losses tails; granulometric com...

Molecular dynamic simulations of polyacrylic acid polyelectrolyte (PAA) analyzed its interaction with the main minerals that make up characteristic tailings mining industry, in this case, quartz, kaolinite, and montmorillonite. The were carried out package Gromacs 2020.3. potentials used General AMBER Force Field (GAFF) for PAA CLAYFF-MOH mineral surfaces. SPC/E model described water molecules ...

This paper compiles the available information on historic tailings dam failures with the purpose to establish simple correlations between tailings ponds geometric parameters (e.g., dam height, tailings volume) and the hydraulic characteristics of floods resulting from released tailings. Following the collapse of a mining waste dam, only a part of tailings and polluted water stored at the dam is...

Copper-mine tailings are the residual products after the extraction of precious copper metal from copper ores, and their storage can create numerous environmental problems. Many researchers have used copper-mine tailings for the preparation of geopolymers. This paper studies the enhancement of the cementitious activity of copper-mine tailings in geopolymer systems. First, copper-mine tailings a...

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Municipal biosolids and agricultural limestone were incorporated into the surface of alluvial highly acidic, metal-contaminated mine tailings in Leadville, CO, in 1998. Amended sites were seeded and a plant cover was subsequently established. A range of chemical and biological parameters were measured over time to determine if treatment was sufficient to restore ecosystem function. An uncontami...

Copper mine tailings are the residual products after the purification of precious copper from copper ores, and their storage can create numerous environmental problems. Many researchers have used copper mine tailings for preparation of geopolymer. This paper studies the enhancement of the cementitious activity of copper mine tailings in geopolymer system. First, copper mine tailings are activat...

The Lemoine tailings of Chibougamau, Quebec, Canada, were deposited as a pH-neutral mineral conglomerate consisting of aluminum-silicates, iron-aluminum-silicates, pyrite, chalcopyrite, and sphalerite. These tailings are colonized by an active population of Thiobacillus ferrooxidans which is localized to an acid zone occupying 40% of the tailings' surface. This population peaked at 7 x 10 most ...