Iron sulfide (iron pyrites) is typically, in copper sulfide bearing ores being concentrated by the froth flotation process, an undesirable element in the final ore concentrate. In the first place, it is generally deleterious to the equipment employed in the reduction of the copper sulfide ores to copper and adds significantly to the air pollution problems at the smelter.

2016-4-13  Flowsheet for treatment of Copper Sulfide ores rich in minerals such as chalcopyrite with gold and silver as well as arsenopyrite. The above flowsheet is designed for the treatment by flotation of copper as chalcopyrite with gold and silver values. The ore, ranging from 60-65% silica, with pyrite, arsenopyrite, and calcite with 3 to 4% copper. This flowsheet,

2021-6-1  Chapter 12: Flotation of Copper Sulfide Ores 12.1 COPPER ORES AND MINERALS More than 170 copper-containing minerals are known and only 10-15 of these minerals have any economic value. The most important economic copper minerals are chalcopy-rite, chalcocite, bornite and covellite.

The sulfide minerals of such ores are readily concentrated by froth flotation, but the oxidized ores are difficult to concentrate by flotation (Holman et al., 1977; Mendiratta, 2000; Drzymala 2007 ...

2020-12-9  We are talking about Coarse-Particle Flotation (CPF), for particles larger than 150 µm and up to 850 µm. It is estimated that for brownfield projects this type of flotation could allow the plant capacity to be expanded by up to 25%, with the single implementation of the CPF system, and without the need to

2011-11-1  Highlights Biosolids and humic acids may be used as flotation reagents of copper sulphide ores. We determine indicators such as copper recovery and copper concentrate grade. Humic acids and industrial flotation reagents show similar copper grade and kinetic. Humic acids have more affinity than biosolids for copper-containing mineral species. Biosolids and humic acids have potential to ...

In the flotation process for recovering copper values from ores containing oxidized copper sulfide minerals in association with copper sulfide minerals wherein said ores are conditioned with collectors for the copper minerals and frothers and thereafter subjected to flotation to recover said copper values, the improvement comprising adding a surface modifying agent to an alkaline pulp of said ore, said agent

A process for the flotation recovery of copper and nickel sulphide minerals from ore containing both such minerals by a process in which at least two conditioning steps precede flotation, said process comprising: -- conditioning a pulp of the ore in the presence of an alkaline agent to produce a conditioned alkaline pulp; then, in at least one further conditioning step, further conditioning said pulp in the presence of a member of the xanthate family of flotation

2020-8-28  Optimization of different steps of copper sulfide-oxide ore flotation process has been done by software as follows: sulfide bulk flotation step with the aim of achieving the maximum grade and recovery of copper–lead mixture, oxide flotation with maximum grade and recovery of copper and sulfide differential flotation with maximum recovery of copper and minimum recovery of lead.

2008-8-1  Gaudin (1957) as far back as fifty years ago described a comprising the flotation of sulfides from hard-to-treat, partially oxidized copper ore. After standard xanthate flotation, tailings containing oxidized copper minerals (malachite) were subsequently floated with carboxylic acid as a

2020-12-9  for copper sulfide ores is around 4. For example, if you had a marginal mineral with a head grade in the coarse fraction of 0.25% Cu, the coarse pre-concentrate would have a grade of around 1% Cu. This pre-concentrate will need to be dewatered, and then go to coarse regrinding for

2011-11-1  Highlights Biosolids and humic acids may be used as flotation reagents of copper sulphide ores. We determine indicators such as copper recovery and copper concentrate grade. Humic acids and industrial flotation reagents show similar copper grade and kinetic. Humic acids have more affinity than biosolids for copper-containing mineral species. Biosolids and humic acids have potential to ...

sodium sulfide as a sulfidizing agent for flotation of oxidized copper ores (Cao et al., 2016, Qu et al., 2012; Chekushin et al., 2015). Copper mineralization occurrences in Sudan were recorded in ...

Copper ores are known to contain copper i ron sulfide, copper sulfide minerals or both. Examples of such minerals include chalcopyrite (CuFeS2), bornite (Cu5FeS4), chalcocite (Cu2S) and covellite ...

(57) Abstract: Usage: mineral processing, in particular flotation of copper-zinc sulphide ores and products. Method of flotation of sulfide copper-zinc ores includes the conditioning of the pulp in a calcareous environment with reagents-regulators sulfur, sodium, and zinc sulfate, the introduction of collector and Frother and subsequent separation with separation of copper minerals in the ...

A flotation promoter for selective water flotation of thin, finely ground, copper-bearing sulfide ores and suppression of iron pyrites therein, consisting essentially of an aliphatic hydrocarbon sodium sulfate having a C 16--C 18 carbon chain chemically combined with at least one mol of ethylene oxide and chemcially combined with at least one ...

2008-8-1  To enhance the flotation effectiveness of copper sulfide feed from carbonate ores the acidic preleaching operation with sulfuric acid is strongly recommended. The chemical leaching process appeared to be very selective and resulted in an apparent liberation of copper sulfide particles from non-floating, hydrophilic intergrowths and ...

2018-1-1  1. Introduction. Copper minerals and molybdenum minerals have closely paragenic relationships, and approximately half of molybdenum production comes from Cu-Mo sulfide ores as a by-product (Hirajima et al., 2014).Porphyry copper deposits are one of the primary resources for the extraction of copper and molybdenum, in which chalcopyrite and molybdenite are the dominant

2005-8-1  Surface oxidation of secondary minerals, such as chalcocite, bornite and digenite, present in the Salobo copper ore makes their flotation difficult and requires excessive reagent consumptions. Two possibilities for reducing the collector and fr other additions were investigated. These were sulfidization of the pulp prior toflotation and using nitrogen to replace air in flotation.

2013-7-25  Continuing with the evaluation of copper oxide flotation using hydroxamate we now evaluate a rock that’s 41% copper oxide with some lead oxide included.. Sample B: 1.8% Copper about 41% Oxide Cu. Rougher Tests: Unseen in these charts is the

2019-7-9  1 Types of copper sulfide ore (1) Single copper mineral Its ore characteristic is relatively simple, and the only useful component that can be recycled is copper. The gangue minerals are mainly quartz, carbonate and silicate. (2) Copper-sulfur ore Called copper-bearing pyrite. In addition to copper minerals, iron sulfide can be recovered, and the main mineral of sulfur is pyrite.

2011-11-1  Highlights Biosolids and humic acids may be used as flotation reagents of copper sulphide ores. We determine indicators such as copper recovery and copper concentrate grade. Humic acids and industrial flotation reagents show similar copper grade and kinetic. Humic acids have more affinity than biosolids for copper-containing mineral species. Biosolids and humic acids have potential to ...

2021-5-17  Flotation Method Applicable copper ores: copper sulfide ores, such as chalcopyrite, bornite and chalcocite, as well as common copper oxide ores, such as azurite, etc. Five common flotation methods: sulphidizing flotation, fatty acid flotation, amine flotation, emulsion flotation and chelating agent—neutral oil flotation.:::Almost all copper sulfide ores have sulfides containing iron, so in a ...

Copper ores are known to contain copper i ron sulfide, copper sulfide minerals or both. Examples of such minerals include chalcopyrite (CuFeS2), bornite (Cu5FeS4), chalcocite (Cu2S) and covellite ...

Current Situation on Flotation of Cu-Pb-Zn Sulfide Ore Jian-Tao Lang1, Si-Qing Liu2,*, Xu Dong3,Yi Pei4 1,2,3,4 Kunming University of Science and Technology, Kunming City, Yunnan Province, China *[email protected] Keywords: Copper-lead-zinc sulfide ore, Flotation process, Separation of bulk concentrate, Flotation column Abstract. In the flotation of copper - lead - zinc polymetallic sulfide ...

Usage: mineral processing, in particular, flotation beneficiation of sulfide copper-Nickel ores containing platinum group metals. The technical result is an increase extraction of base and precious metals in bulk concentrate through the use of sulfhydryl collectors with enhanced flotation activity.

1. Method of flotation of sulphide minerals of copper from chalcopyrite-cubanito piratesnigerian copper-Nickel ores, including the crushing ore, the aeration of the pulp in the presence of sulfhydryl with the of irately, selective flotation of sulfide minerals of copper in the presence of a foaming agent with the release of the draft copper concentrate regrinding the latest and subsequent ...

2011-12-1  The industry is well aware of the difficulty in treating copper ores in the presence of clay minerals. In this study, the effect of bentonite on the flotation of chalcopyrite (a primary copper sulfide mineral) and chalcocite (a secondary copper sulfide mineral) was investigated in terms of surface coating.

2018-1-1  1. Introduction. Copper minerals and molybdenum minerals have closely paragenic relationships, and approximately half of molybdenum production comes from Cu-Mo sulfide ores as a by-product (Hirajima et al., 2014).Porphyry copper deposits are one of the primary resources for the extraction of copper and molybdenum, in which chalcopyrite and molybdenite are the dominant

2014-3-10  An extreme sensitivity of pentlandite flotation towards pH regulator at pH 10 has been documented using two types of complex nickel–copper sulfide ores in Northern Ontario, Canada.The samples studied are from Sudbury and Timmins areas and differ in their mafic and ultramafic associations and degree of dissemination.