• Arsenic Sulfides - an overview ScienceDirect Topics

    Arsenic sulfides occurring in nature are realgar, As 4 S 4; orpiment, As 2 S 3; arsenopyrite, FeAsS; and enargite, Cu 3 AsS 4.Realgar can be distilled without decomposition while orpiment melts at 310 °C and boils at 707 °C without decomposition. Both are insoluble in water and acids, even in concentrated HCl, but dissolve readily in alkaline reagents, especially alkali sulfide solutions ...

  • Arsenic sulfide As2S3 - PubChem

    Arsenic sulfide As2S3 CID 61569 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. COVID-19 is an emerging, rapidly evolving situation. Get

  • Influence of arsenic on iron sulfide transformations -

    At low arsenic concentrations, sorption onto the FeS surface may be the reaction controlling the uptake of arsenic into the solid phase. Inhibition of iron(II) sulfide transformations due to arsenic sorption suggests that the sorption sites are crucial not only as sorption sites, but also in iron(II) sulfide

  • Answered: Convert 9.22 g arsenic (111) sulfide to

    2020-6-30  9.22 g arsenic sulfide. molar mass of arsenic sulphide = 246 g/mol formula of arsenic sulphide = As2S3 1 mol = 6.022 x 1023 ions. for 1 formula u... Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1

  • arsenic sulfide中文_arsenic sulfide是什么意思

    Determination of arsenic in blood urine and hair of acute promyelocytic leukemia patients after taking arsenic sulfides病人服用硫化砷后的血尿发砷测定 Abstract : for the high arsenic sulfide gold ore of a mine in tongling , anhui , a scheme of preferential separation of gold is suggested , in which bleaching powder is used as the oxidizing agent for separating arsonopyrite from ...

  • Kinetics of Arsenate Reduction by Dissolved Sulfide

    arsenic and sulfide may strongly influence water quality inarsenic-contaminatedsystems.Toevaluatethispossibility, we investigated the kinetics and reaction pathways of arsenate with sulfide. Arsenate reduction by hydrogen sulfide is rapid and conforms to a second-order kinetic model, having a rate constant, k) 3.2 102 M-1 h-1, that

  • Arsenic remediation by formation of arsenic sulfide ...

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  • Sulfide - Wikipedia

    2020-7-1  Sulfide (British English also sulphide) is an inorganic anion of sulfur with the chemical formula S 2− or a compound containing one or more S 2− ions. Solutions of sulfide salts are corrosive. Sulfide also refers to chemical compounds large families of inorganic and organic compounds, e.g. lead sulfide and dimethyl sulfide. Hydrogen sulfide (H 2 S) and bisulfide (SH −) are the conjugate ...

  • Sulfide Minerals - an overview ScienceDirect Topics

    Metalloids, most significantly arsenic, can also be present at highly elevated concentrations in sulfide ore leach liquors; arsenopyrite (FeAsS) and realgar (As 4 S 4) are two other relatively common sulfide minerals. Waters percolating through fissures in worked-out underground mines, as well as those draining stockpiled mine waste rock dumps ...

  • sulfide中文_sulfide是什么意思 - ichacha.net

    In all hydrothermal deposits the minerals formed are not solely the sulfide ore minerals . 在所有热液矿床中,所形成的矿物并不单单是硫化物矿石矿物。 The sulfide assemblage consists largely of pyrrhotite, pentlandite, chalcopyrite, and pyrite .

  • lead antimony sulphide ore - cantierinavalideltevere.it

    application to arsenic, antimony and mercury bearing ores, concentrates, by-products, , Alkaline Sulfide Hydrometallurgical Treatment of Lead Softening Skims. More Antimony - USGS. All antimony sulfide ore held in the NDS has been sold , Lead-antimony alloys were used in automotive vehicle batteries, ammunition, corrosion-

  • Influence of arsenic on iron sulfide transformation ...

    Sulfide may have played double roles in arsenic redistribution process, i.e. promoting arsenic release from host oxyhydroxides in early stage and removal of arsenite from solution in the form of ...

  • SULFIDE meaning in the Cambridge English Dictionary

    sulfide definition: 1. US spelling of sulphide 2. a chemical formed from sulfur and another element 3. a chemical. Learn more.

  • Mining Industry Copper Sulfide Ore and Flotation

    2020-6-25  (7) Arsenic sulfide copper ore The ore has a high content of arsenic, which is mainly in the form of arsenopyrite. Flotation process to solve the problem of copper and arsenic separation, reduce the arsenic content in the copper concentrate as much as possible. Related post: Copper Ore Types and Distribution in the World

  • Kinetics of Arsenate Reduction by Dissolved Sulfide ...

    2019-5-25  Arsenic toxicity and mobility in soil and aquatic environments depends on its speciation, with reducing environments generally leading to more hazardous conditions with respect to this element. Aqueous sulfide (H2S or HS-) is a strong reductant and often occurs at appreciable concentrations in reduced systems. Consequently, it may play an integral part in arsenic redox chemistry.

  • US3709680A - Process for removal of arsenic from

    A process and apparatus for the removal of arsenic values from an ore concentrate includes the steps of leaching the concentrate with a solution which dissolves the arsenic, separating undissolved residue therefrom, acidifying the arsenic pregnant solution to precipitate arsenic and other mineral values as insoluble salts and treating the arsenic barren solution to regenerate sulfur and sodium ...

  • sulfide ore processing - okna-max.eu

    Copper Mining and Processing: Processing of Copper Ores , Copper processing is a complicated process that begins with mining of the ore (less than 1% copper) and ends with sheets of 9999% pure copper called cathodes, which will ultimately be made into products for everyday useThe most common types of ore, copper oxide and copper sulfide, undergo two different processes, hydrometallurgy and ...

  • Sulphide vs Sulfide - What's the difference? WikiDiff

    Sulphide is an alternative form of sulfide. As nouns the difference between sulphide and sulfide is that sulphide is while sulfide is (chemistry) any compound of sulfur and a metal or other electropositive element or group.

  • Chemistry of Arsenic - Arsenic - NCBI Bookshelf

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  • THE ALKALINE SULFIDE HYDROMETALLURGICAL

    2009-8-19  containing any number of metals. The alkaline sulfide system is one of these and is essentially a mixture of sodium sulfide and sodium hydroxide. This is a unique hydrometallurgical system as it is a very selective lixiviant for the distinct leaching of tin, gold, antimony, arsenic and mercury (1,2,3,4,5,6,7). Worldwide, it is employed

  • Mining Industry Copper Sulfide Ore and Flotation

    2020-6-25  (7) Arsenic sulfide copper ore The ore has a high content of arsenic, which is mainly in the form of arsenopyrite. Flotation process to solve the problem of copper and arsenic separation, reduce the arsenic content in the copper concentrate as much as possible. Related post: Copper Ore Types and Distribution in the World

  • Arsenic Removal Kinetics of Hydrothermal Sulfide ...

    Arsenic-alkali residue was hydrothermally leached with sodium sulfide as precipitating agent.The kinetics of sulfide precipitation of arsenic removal was studied.The relationship between precipitation duration and purification rate were investigated under different ...

  • Evidence of early amorphous arsenic sulfide

    Arsenic sulfide particles analyzed in print D present all characteristics of the amorphous arsenic sulfide pigment: broad band centered around 340 cm −1, realgar-like nano-phases at 233 and 475 cm −1, sulfur remnants at 271 and 495 cm −1 as well as the increased baseline between 100 and 250 cm −1 (Fig. 6e, f). No traces of natural ...

  • sulfide ore processing - okna-max.eu

    Copper Mining and Processing: Processing of Copper Ores , Copper processing is a complicated process that begins with mining of the ore (less than 1% copper) and ends with sheets of 9999% pure copper called cathodes, which will ultimately be made into products for everyday useThe most common types of ore, copper oxide and copper sulfide, undergo two different processes, hydrometallurgy and ...

  • extraction of copper other sulfide ores 」

    A fresh approach to sulfide oresCanadian Institute of 26, 2017 A smelting workaround. The traditional route for extracting copper from sulfide ores is smelting. Yet there is a growing case for leaching sulfides from lower grade ore bodies andA smelting workaround. The traditional route for extracting copper from sulfide ores is smelting.

  • Flotation concentration of the sulfide antimony

    The technology of concentration of the sulfide antimony-arsenic gold-bearing ore containing 3.6 g/tn Au, 0.3% Sb, and 0.4% As is developed. This technology implies the flotation separation of antimonite and arsenopyrite into separate products and allows them to perform in various cycles, increasing production efficiency due to a decrease in consumption of sulfuric acid for bacterial oxidation ...

  • antimony sulifid ore processing plant -

    antimony sulfide ore processing plant crusher for sale. Antimony sulfide ore processing plant, antimony refining machine for sale. Antimony sulfide ore is one of the antimony ore types. In the production, processing and beneficiation will be applied to upgrade the raw materials to achieve its high grade concentrates. Get Price

  • Mineralogy of Sulfides Elements GeoScienceWorld

    The literature on sulfide minerals is extensive, with a number of overview textbooks and monographs. Comprehensive reviews can be found in Ribbe (), Vaughan and Craig (), and, most recently, in Vaughan ().The present article provides a brief overview of the compositions and crystal structures of the major sulfide minerals, aspects of their chemistries (bulk and surface) and their occurrence.

  • The Mineral Gallery - Sulfides Class

    The Sulfide Class minerals comprise an economically important class of minerals. Most major ores of important metals such as copper, lead and silver are sulfides. Strong generalities exist in this class. The majority of sulfides are metallic, opaque, generally sectile, soft to average in hardness and they have high densities, black or dark-colored streaks, and an igneous origin.

  • Leaching Arsenic in Arsenical Copper Sulfide

    2020-6-26  One of the common arsenic-bearing copper minerals is enargite (Cu3AsS4), which is an important ore mineral at Butte, MT, and to a lesser extent, at Bingham Canyon, UT. Recent discovery of Cu3AsS4 occurrences in central Tennessee indicate that other exploration efforts might discover occurrences of this mineral resource elsewhere.

  • sulfide type coppe r ore ball mill」

    such technique for the Hofrat En Nahas coppe r sulfide ore in Sudan,The crushed sample was wet ground in a ball mill in a closed circuit with an 100mineral type, texture, liberation . Inquire Now; sulfide type coppe r ore ball mill. Sulfur Ore, Sulfur Ore Suppliers and Manufacturers sulfide type coppe r ore

  • Factors Influencing the Release of Arsenic, Manganese

    Factors Influencing the Release of Arsenic, Manganese and Iron from Sulfide and Arsenide Minerals to Water Environment . By Tran Hong Con, Bui Duy Cam and Nguyen Thi Kim Dung. Get PDF (1 MB) Abstract. The releasing process of arsenic, manganese and iron from their sulfide/arsenide ores was investigated in an equipment imitating natural ...

  • Hydrothermal Treatment of Arsenic Sulfide Residues

    Arsenic-containing waste is widely produced due to anthropogenic activities [1,2,3,4].It is universally believed that the extractive process of non-ferrous metals is one of the most important sources of arsenic [5,6].In the smelting of copper or lead-zinc ore, larger amounts of acidic wastewater are discharged when gaseous emission containing SO 2, As, Cu, Pb, Zn and other impurities are ...

  • antimony sulifid ore processing plant -

    antimony sulfide ore processing plant crusher for sale. Antimony sulfide ore processing plant, antimony refining machine for sale. Antimony sulfide ore is one of the antimony ore types. In the production, processing and beneficiation will be applied to upgrade the raw materials to achieve its high grade concentrates. Get Price

  • extraction of copper other sulfide ores 」

    A fresh approach to sulfide oresCanadian Institute of 26, 2017 A smelting workaround. The traditional route for extracting copper from sulfide ores is smelting. Yet there is a growing case for leaching sulfides from lower grade ore bodies andA smelting workaround. The traditional route for extracting copper from sulfide ores is smelting.

  • FLOTATION OF SULFIDE ORES - DOW CHEMICAL

    1971-7-6  An improvement in the concentration of ores by flotation which comprises subjecting a sulfide ore in the form of a pulp to a flotation process in the presence of an effective quantity of a flotation collector comprising a compound corresponding to the formula wherein R and R 2 are hydrocarbon groups and R 1 is an alkylene group. Certain of the indicated compounds provide enhanced recovery

  • jaw crusher quartz vein gold ore containing a small

    3. Gold-bearing quartz vein ore containing a small amount of sulfide. This ore is most common in gold-bearing quartz veins ore and generally contains 1% to 5% of metal sulfides. According to the state of gold production, it can be divided into two types: one is associated with sulphide ore, another is associated with gangue minerals such as quartz.

  • Kinetics of Arsenate Reduction by Dissolved Sulfide ...

    2019-5-25  Arsenic toxicity and mobility in soil and aquatic environments depends on its speciation, with reducing environments generally leading to more hazardous conditions with respect to this element. Aqueous sulfide (H2S or HS-) is a strong reductant and often occurs at appreciable concentrations in reduced systems. Consequently, it may play an integral part in arsenic redox chemistry.

  • CN105039713A - Method for leaching solid arsenic

    The invention relates to a method for leaching solid arsenic out of arsenic sulfide slag through one step and enriching valuable metal. The arsenic sulfide slag serves as a raw material, iron-containing materials are added in the arsenic sulfide slag, and an acid water solution is inflated with air or oxygen for oxidizing leaching; in the leaching process, the temperature is controlled to ...

  • Leaching Arsenic in Arsenical Copper Sulfide

    2020-6-26  One of the common arsenic-bearing copper minerals is enargite (Cu3AsS4), which is an important ore mineral at Butte, MT, and to a lesser extent, at Bingham Canyon, UT. Recent discovery of Cu3AsS4 occurrences in central Tennessee indicate that other exploration efforts might discover occurrences of this mineral resource elsewhere.