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Comprehensive recovery of molybdenum and scheelite from molybdenum tailings

Time:Apr 21, 2020 Author:Boleiro

A significant improvement of scheelite recovery using

May 10, 2017 currently, 50,000 t/d of ore is mined and processed to recover molybdenite and scheelite concentrates by sequential selective flotation. fig. 1 shows a simplified plant flowsheet. the tailings of molybdenite flotation is processed by the roughing and cleaning flotation circuits to recover scheelite (cawo4).

in this paper, the mineral processing experimental study on the flotation tailings which are stored in the tailings pond of a copper-molybdenum mine is conducted, with a large content of slimes and kaolinite in the tailings and the fine particle sizes and poor locked particles of most of valuable minerals disseminated in the gangue minerals taken into consideration.

molybdenum, a trace element essential for micro-organisms, plants, and animals, was discovered in 1778 by a swedish chemist named karl scheele. initially mistaken for lead, molybdenum was named after the greek work molybdos, meaning lead-like. in the 1930s, it

Us20080067112a1-methods for the recovery of

Us20080067112a1-methods for the recovery of

in general, the gold recovery method of gold tailings is mainly the all slime cyanidation cip method. it is the recovery of residual gold particles from tailings by using the property of gold soluble in cyanide. the gold recovery for large capacity and low grade gold tailingsmon heap leaching. project cases 1.

mar 09, 2017 regarding to the molybdenum and tungsten mineral in yantai, the grade of mo in raw mineral was 0.13%, and that of wo3 was 0.063%. the main mineral in molybdenum was molybdenite, and main tungsten mineral was scheelite.

Jihua zhai

Jihua zhai's research works | university of leeds, leeds

the iron tailings discharge from iron ore plant is in large amount, fine size and different types, and complex property, so xinhai use the process of magnetic separation, flotation, acid leaching and flocculation to recover iron. xinhai usually use all-slime cyanide process and carbon-in-pulp process to recover the gold from gold tailings.

Gold tailings reprocessing technology-xinhai

The general recovery rate of gold processing and melting is 80.4%. the general recovery rate of silver processing and melting is 38.2%. the value of tailings is brought into full play, and also brings efficiency to the processing plant. 2. a tailings pond in north korea stored more than 10 million tonnes of gold tailings.

nov 15, 2020 research on the comprehensive utilization of cyanide tailings mainly involves pretreatment–secondary gold and silver extraction, comprehensive copper, iron, and zinc recovery, and harmless treatment. the first two methods focus on the comprehensive recovery of valuable resources, whereas the latter focuses on cyanide destruction.

in this paper, the modeling of the liberation of scheelite is presented. a pattern of concentration experiments was performed to investigate the scheelite liberation and distribution density calculation procedure. in this work, one sample from a mittersill tungsten ore was studied. this work describes a method for determining the downstream milling energy requirements for rod mill products

Modeling the liberation of comminuted scheelite using

Modeling the liberation of comminuted scheelite using

scheelite flotation has become a research hot spot in recent years because of the depletion of wolframite resources. many methods, especially selective reagents [4], effective equipment [5,6], optimization of flowsheet [7] and recovery of associated scheelite from molybdenum ore [8], have been conducted to improve the utilization of scheelite.

Solutions for gold mine tailings-mining-pedia

May 31, 2021 the comprehensive utilization of gold tailings refers to the recovery of useful minerals and the overall utilization of non-metallic fine-grained materials, which are mainly divided into the following aspects: the recovery of valuable elements in tailings, tailings filling the mining area, the overall utilization of tailings and so on.

tungsten valorization from scheelite. namely, the assumptions that this tailings contain scheelite were justified and it was established that content of wo3 in it varies in a wide range from 0.05 – 2%, where average content is 0.2-0.3% wo3. in the world ratios, the tungsten ores with this content have

concentrations of the ores. the recovery rates of tungsten and molybdenum reached 60–70%, those of the cu–bi concentrate was ~30%, and that of au was 3–4%. in 2005, the institute of geology of ore deposits, petrography, mineralogy, and geochemistry, russian academy of sciences, launched a comprehensive mineralogical and

an efficiently optimized reagent regime was investigated to improve scheelite heating flotation. the scheelite grade and recovery in the plant were significantly improved by 5% and 6%, respectively, which remarkably augmented the economic profit by $260,000 per month. the interaction mechanisms of sodium sulfide and sodium oleate with scheelite, calcite and fluorite were evaluated by

Significant improvement in the scheelite heating flotation

Significant improvement in the scheelite heating flotation

nov 05, 2020 the tailings dry stacking is a new tailings processing method in recent years. after the multistage concentrating, the tailings pulp is sent to a series of high-efficient dewatering equipment, and slag with low water content, easy to curing and stored is formed. the slag can be used as the building materials, or transferred to the fixed

the project takes low-grade complex scheelite from cmoc molybdenum tailings as raw material and adopts new environmental protection process of comprehensive tungsten smelting recycling of soda pressure leaching-alkali extraction-evaporation for coarse molybdenum-tungsten separation, ion exchange for deep tungsten-molybdenum separation and

oct 04, 2020 the recovery of valuable elements from gold tailings can only realize the comprehensive recovery of a small number of valuable elements in tailings, but it cannot significantly reduce the number of tailings, and still cannot fundamentally solve the problems, such as occupying a large amount of land, destroying and affecting the ecological

jan 10, 2018 based on environmental protection and economic considerations coupled with scientific and technological developments, various technologies for the treatment and comprehensive utilization of cu tailings have been investigated (ma et al., 2014, onuaguluchi and eren, 2016).the flotation plant in luanchuan (henan, china) is owned and operated by china molybdenum co. ltd. (cmoc), which is

Evaluation of the possibility of copper recovery from

Evaluation of the possibility of copper recovery from

an efficiently optimized reagent regime was investigated to improve scheelite heating flotation. the scheelite grade and recovery in the plant were significantly improved by 5% and 6%, respectively, which remarkably augmented the economic profit by $260,000 per month. the interaction mechanisms of sodium sulfide and sodium oleate with scheelite, calcite and fluorite were evaluated by

The technological mineralogical research of molybdenum

Besides molybdenum, the ore minerals contain scheelite, native bismuth, bismuthinite, magnetite and so on; and the gangue minerals are mainly andradite, fluorite and wollastonite. part of the molybdenum exists in the scheelite in form of isomorphism, and there

graphite tailings:xinhai will use the process of stage grinding and screening to recover the graphite from tailings. in the process of separation, flotation and shaking table is always used. if we want to achieve comprehensive recovery of several kinds of minerals from graphite tailings, we should combine several separation methods.

jan 10, 2018 based on environmental protection and economic considerations coupled with scientific and technological developments, various technologies for the treatment and comprehensive utilization of cu tailings have been investigated (ma et al., 2014, onuaguluchi and eren, 2016).the flotation plant in luanchuan (henan, china) is owned and operated by china molybdenum co. ltd. (cmoc), which is

Evaluation of the possibility of copper recovery from

Evaluation of the possibility of copper recovery from

according to the nature of a polymetallic ore and on the basis of the main separation of the molybdenum minerals, the low-grade bismuth, tungsten minerals with be associated are to be recycled. the beneficiation process of mo-bi bulk floatation separation and tailings bulk floatation followed by scheelite floatation was determined through a lot of testing.

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