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193 Some observations on copper-inc separation from complex sulphide ores G. Labont M. Leroux I. Sandoval S.R. Rao and J.A. Finch Department of Mining and Metallurgical Engineering McGill University Montreal Quebec Canada H3A 3A7 ABSTRACT Some observations and new approaches for selective flotation of chalcopyrite and sphalerite from complex ores are outlined
Name the substance used as depressant in the separation of two sulphide ores in Froth floatation method. Answer Froth floatation method of concentration of sulphide ore. Sulphide ores are preferentially wetted by oils while the gangue is preferentially wetted by water. The ore particles get adsorbed on oil droplets and come to the surface
2013-6-21Abstract Induced flotation behaviors of some sulphide minerals have been investigated. It is found that there exists a great difference between the flotation behavior of every two minerals. On the basis of this phenomenon new flotation flowsheets for the separation of sulfide ores have been designed
1997-12-2Depressant for flotation separation of polymetallic sulphide ores . United States Patent 5693692 . Abstract A new depressant for use in enhanced separation of polymetallic sulphides is described. The depressant agent is used in conjunction with conventional collector agents and frothing agents in the flotation separation of copper nickel
Sulphide ores of metals are usually concentrated by froth flotation process. Which one of the following sulphide ores offers an exception and is concentrated by chemical leaching
The example of electrochemical flotation separation of sulphide ores shows an industrial application. Prof. Yuehua Hu is a professor at the School of Minerals Processing Bioengineering of Central South University and Vice Chairman of the Mineral Processing Committee of
Compared to the massive sulphide ores ore mylonites show remarkable enrichment of these elements with enrichment coefficients of 5.3 5.0 and 4.6 respectively. 1 1 .0 0 1 .74gt 2 35gt 5 .35 .0 4 .6
This method of separation is used when either the ore particles or the gangue associated with it possess magnetic properties. For example chromite FeCrO 2 2 being magnetic can be separated from the non-magnetic silicious gangue by magnetic separation.. This method is widely used for the separation of two minerals when one of them happens to be magnetic
2020-3-6Depressants help to separate two sulphide ores by selective prevention of froth formation by one ore and allowing the other to come into the froth. NaCN is used as a depressant in order to separate two sulphide ores ZnS and PbS. PREVIOUS. A 38 solution of sulphuric acid is used as electrolyte
2010-7-6Pretreatment study on chloridiing segregation and magnetic separation of low-grade nickel laterites LIU Wan-rong 1 LI Xin-hai industry the high grade nickel of sulphide ores decreases continually therefore there is an urgent need for a new
A procedure for the analysis of lead sulphide and mixed sulphide ores for silver arsenic gold cadmium copper manganese antimony and inc was developed with emphasis on the determination of the low gold to silver and arsenic to antimony ratios. Radiochemical neutron
1991 English Licentiate thesis comprehensive summary Other academic Place publisher year edition pages Lule Lule tekniska universitet 1991. Series Licentiate thesis Lule University of Technology 31 dec 1996 ISSN 0280-8242 199119
A new depressant for use in enhanced separation of polymetallic sulphides is described. The depressant agent is used in conjunction with conventional collector agents and frothing agents in the flotation separation of copper nickel lead inc sulphides by depressing iron sulphides such as pyrrhotite pyrite and marcasite in the tailing
2018-10-10Magnetic separation of copper sulfide ores containing copper and magnetite. Copper sulfide is the inorganic compound is cupric sulfide chemical formula is CuS dark brown very insoluble substance is one of the most insoluble materials after HgS platinum sulfide silver sulfide etc. because its slightly solubility makes some reaction that seemingly cant react can occur
The invention relates to the field of mineral processing and may be used for flotation of sulphide gold and polymetallic ores. The technical result is to increase flotation. The method includes conditioning the pulp with xanthate and additional collector which is used as a concentrate metasulfite representing a mixture of 37-dimethyl-tiannan
Request PDF Flotation activity of pyrite in the separation of massive sulphide ores Pyrite is the main mineral of pyrite copper ores that due to the high initial content in ore in comparison
2018-2-20included a variety of mineral systems such as spodumene sulphide-bearing gold ores and complex sulphide ores. These case studies demonstrate that for amenable ores mass rejection of 20-60 is possible while maintaining recoveries of greater than 90 in most cases. KEYWORDS Dense medium separation pre-concentration lithium sulphide ores
A Review of the Flotation of Copper Minerals. increased demand for metals and separation dif ficulties associated with low-gra de or Sulphide ores are the major sources of base metals like
2020-5-19Laboratory investigations on the possibility for magnetic separation of sulphide minerals are reported. A survey of several sulphide ores and flotation concentrates shows that magnetic separation in most cases is not a suitable primary method of beneficiation. However encouraging results have been obtained in concentrate purification. Traditionally magnetic separation is associated with iron
The effect of removal of sulfide minerals from polymetallic sulphide ores which contains cassiterite has a great influence on recovery of tin. Based on the property of polymetallic sulphide oredesulfuriation experiments through high concentration flotation were
Used primarily for the smelting of copper and nickel sulphide ores a claimed advantage over other commercial nonferrous smelters is the phenomena of coalescence of matte droplets in the bath. The subsequent increase in the rate of phase separation step is thought to lead to. Cobalt Processing Developments K G Fisher
2020-5-15Electromagnetic Separation of Copper Carbonates . The carbonates of copper sp. gr. 3.5 to 4.0 are feebly magnetic attempts made to separate them from their gangues commercially have not however been successful. The following results are reported as having been obtained on an ore carrying malachite and aurite in a dolomitic gangue
2020-1-8Froth flotation is widely used for separating base metal sulphide minerals in complex ores. One of the major challenges faced by the flotation of these ores is the ever varying grade and mineralogy as the ore is exploited Kabuda et. al. 2011. As in any mineral processing operation the efficiency of the flotation separation is highly
Synopsis. This paper presents both the fundamentals of sulphide mineral flotation and the practical aspects of sulphide ore flotation. The fundamental aspects of the flotation of sulphide minerals both in the absence and presence of thiol collectors are discussed in relation to their crystal structure surface chemistry and electrochemical characteristics
193 Some observations on copper-inc separation from complex sulphide ores G. Labont M. Leroux I. Sandoval S.R. Rao and J.A. Finch Department of Mining and Metallurgical Engineering McGill University Montreal Quebec Canada H3A 3A7 ABSTRACT Some observations and new approaches for selective flotation of chalcopyrite and sphalerite from complex ores are outlined
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