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Pyrrhotite is an iron deficient, low nickel content sulfide mineral that is commonly associated with pentlandite, a nickel -rich sulfide ; and are both main components of the nickel …
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This implies that if the mineralogy of pyrrhotite is known, the performance of pyrrhotite in processing operations can be manipulated to exploit specific attributes of the different …
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Efficient separation of minerals is the essence of mineral processing. Separation of hexagonal pyrrhotite in processing of Ni-Cu sulphide ores was investigated together with …
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Pyrrhotite is the general name for iron sulfide minerals that occur as two principal structural and compositional types: hexagonal (Fe9S10) and monoclinic (Fe7S8). Leaching of pyrrhotite with …
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1995). The transformation of pyrite to pyrrhotite, using pyrolysis, indicated that the cyanide consumption gradually decreases with an increase in the pyrrhotite content of the sample …
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In this study synthetic process water at various ionic strengths was investigated against various CMC dosages to understand the behaviour of pyrrhotite during the flotation of a Cu-Ni-PGM …
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The method applies in particular to pyrrhotite having low copper content and high ferrous sulfide content, and uses a process of low-alkali magnetic separation followed by flotation;...
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Pyrrhotite is an associated mineral that exists widely in sulfide ore. The presence of pyrrhotite will affect the recovery of platinum group minerals. ... Miller et al. [2] summarized the …
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Pyrrhotite crystallises as either a hexagonal or monoclinic structure, both of which can occur in ore deposits. In general, pyrrhotite is not considered as a valuable mineral unless it contains …
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In the present paper, a comprehensive review is conducted to discuss the influence of crystal structures on the natural floatability, mineral-reagent interaction, surface oxidation …
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Pyrrhotite predominates among iron sulfides in a number of copper–gold sulfide deposits, and its recovery during the flotation process reduces product quality and causes …
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Pyrrhotite (Fe(1-x)S) is one of the most commonly occurring metal sulfide minerals and is recognised in a variety of types of ore deposits. Since the principal nickel ore mineral, …
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Aspen Plus Model Simulation and Financial Analysis of Pyrrhotite Processing Technology Options Tian Ai Zhu Master of Applied Science Department of Chemical Engineering University of …
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The chemistry of pyrrhotite flotation using xanthate collectors is reviewed with respect to the processing of PGM ores and the recent results from captive bubble contact angle …
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The behaviour of pyrrhotite in mineral processing operations is critical to continued reductions of SO 2 emissions. Some Canadian Ni-Cu sulphide ores also have variable …
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The factors affecting pyrite and pyrrhotite oxidation are similar but the latter has received much less attention. ... Electrochemistry in Mineral and Metal Processing II. The Elec-trochemical ...
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The feasibility of a novel bioleaching two-stage process for pyrrhotite tailings treatment is evaluated using leaching kinetics and process simulation of the proposed tailing treatment …
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PDF Canadian pyrrhotite treatment the history ·Pyrrhotite Po is one of the most abundant sulfide minerals in processing industry and must be rejected in most cases Particularly Po rejection …
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One of the more common classes of ores containing gold is when gold is associated with pyrite, pyrrhotite, and arsenopyrite. This is the area of gold recovery 911 Metallurgist is a trusted resource for practical insights, solutions, …
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During Ni processing, pyrrhotite is generally rejected to the tailings stream by flotation to produce a low tonnage, high grade (Ni) smelter feed and reduce SO 2 emissions. In this study, the …
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The selective sequential flotation of these ores is accompanied with various processing challenges such as the successful separation of the Cu-Ni-PGMs from non-sulfide naturally …
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A number of studies have shown that reaction between pyrrhotite and xanthates produces the oxidation product dixanthogen subject to the oxidation potential being …
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In this review, the physical and chemical properties of the pyrrhotite group minerals are discussed, particularly their mineralogical behavior during mineral processing and …
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Aspen Plus Model Simulation and Financial Analysis of Pyrrhotite Processing Technology OptionsZhu, Tian Ai.,2021M.A.S.。 …
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Magnetic separation has practised since the 1950s as a means of upgrading the pyrrhotite prior to further processing. In 1975 pyrrhotite tailings mineralogy was described as …
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In this paper some historical context behind pyrrhotite processing in the Sudbury area is provided. Flow sheet design considerations based on both technical and economic …
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The mineral processing of pyrrhotite is generally understood, however it has many complex crystallographic structures (superstructures) that behave differently in the flotation …
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pyrrhotite processing; pyrrhotite rejection; pyrrhotite tailings inventory Introduction Canada's Sudbury mines have been a major source of nickel for over 120 years. Today, Vale Canada, …
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The chemistry of pyrrhotite flotation using xanthate collectors is reviewed with respect to the processing of PGM ores and the recent results from captive bubble contact …
WhatsApp: +86 18221755073