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leaching antimony from oxide ore

Removal of antimony (III) by iron-copper binary oxide from ...

1 Preparation and characterization of iron-copper binary oxide and its effective removal of antimony (III) from aqueous solution Yongchao Li a *, Bing Geng b, Xiaoxian Hu a, Bozhi Ren a Hursthouse Andrew S a,c a School of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411201, China b Institute of Environment and Sustainable Development in Agriculture, Chinese Academy ...

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Hydro-metallurgical preparation of the oxides of antimony ...

Oxides of antimony are obtained from stibnite by first extracting stibnite from stibnite bearing ore or ore concentrate using an aqueous solution containing ammonium sulfide, sulfur and preferably ammonium hydroxide to form a solution containing stibnite and gangue.

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Leaching Kinetics of Antimony from Refractory Gold Ore in ...

01/12/2020  The leaching kinetics of antimony from refractory gold ore in alkaline sodium sulfide was investigated under ultrasound. The influence of factors such as stirring speed, temperature, the concentration of sodium hydroxide and sodium sulfide and particle size, was studied. The leaching kinetics has also been studied under convention and ultrasound.

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[1 mark]

WMP/Jun14/CHEM2 Do not write outside the box 3 (c) In the second stage of the extraction of antimony from a high-grade ore, antimony(III) oxide is reacted with carbon monoxide at high temperature. 3 (c) (i) Use the standard enthalpies of formation in Table 1and the equation given below Table 1to calculate a value for the standard enthalpy change for this reaction.

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antimony recovery from scrap

leaching antimony from oxide ore . Leaching and Solution Purification; Copper oxide ore; Copper scrap; Copper sulfide ore; impurities like as arsenic and antimony can be removed from the . Recover Gold Antimony in Flotation Tailings Froth . Froth Flotation (Sulphide Oxide) Leaching of gold, Sb, to be this material does not contains sulphides but rather oxide. There are three main antimony ...

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Mining and Extraction: Oxide Ores - processes for ...

Leaching Oxide Ores with Sulfuric Acid. The flowchart above shows how the smelting process of sulfide ores produces sulphur dioxide, which is converted to sulfuric acid. The chart below shows how acid is used to leach out copper ions creating lakes of blue copper sulfate solution from which copper is recovered in a solvent and then electrolytically refined in a process called solvent ...

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Heap leaching - Wikipedia

Heap leaching is an industrial mining process used to extract precious metals, copper, uranium, and other compounds from ore using a series of chemical reactions that absorb specific minerals and re-separate them after their division from other earth materials. Similar to in situ mining, heap leach mining differs in that it places ore on a liner, then adds the chemicals via drip systems to the ...

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Antimony Ore Tailings: Heavy Metals, Chemical Speciation ...

Antimony ore tailings slag was used analyze heavy metals, chemical speciation, and leaching characteristics. The results show that the residual silicate phases account for 65.44% of Sb, 77.22% of...

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Research on the Characteristics and Mechanism of the ...

Thus the composition of antimony smelting slag is chemically complex and may contain the antimony oxide losses and antimony compounds produced by redox reactions in the process of smelting under alkaline conditions. Through leaching in surface environments, the antimony compounds release antimony through hydrolysis. But under weak acid or alkali conditions, the hydrolysis of antimony

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Ozonation leaching of a complex sulfidic antimony ore in ...

01/01/2016  Selective dissolution of stibnite from a complex sulfidic antimony ore containing pyrite by ozonation leaching in hydrochloric acid solution has been studied in the paper.

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antimony recovery from scrap

leaching antimony from oxide ore . Leaching and Solution Purification; Copper oxide ore; Copper scrap; Copper sulfide ore; impurities like as arsenic and antimony can be removed from the . Recover Gold Antimony in Flotation Tailings Froth . Froth Flotation (Sulphide Oxide) Leaching of gold, Sb, to be this material does not contains sulphides but rather oxide. There are three main antimony ...

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Heap leaching method of antimony ores

SUBSTANCE: method involves ore pre-benefication with X-ray radiometric separation and further heap leaching of antimony from ore. At that, leaching is performed with solution containing sulphuric acid and sodium chloride in presence of manganese compounds of oxidation degree of not less than 3 or with solution containing chlorhydric acid, active chlorine and sodium

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Research on the Characteristics and Mechanism of the ...

Thus the composition of antimony smelting slag is chemically complex and may contain the antimony oxide losses and antimony compounds produced by redox reactions in the process of smelting under alkaline conditions. Through leaching in surface environments, the antimony compounds release antimony through hydrolysis. But under weak acid or alkali conditions, the hydrolysis of antimony

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Antimony - Wikipedia

Antimony also forms a mixed-valence oxide, antimony tetroxide (Sb 2 O 4), which features both Sb(III) and Sb(V) . Unlike oxides of phosphorus and arsenic, these oxides are amphoteric, do not form well-defined oxoacids, and react with acids to form antimony salts. Antimonous acid Sb(OH) 3 is unknown, but the conjugate base sodium antimonite ([Na 3 SbO 3] 4) forms upon fusing sodium oxide

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Mining - Antimony

Antimony is recovered from some complex ores by leaching, followed by electrowinning. A typical process uses sodium sulfide or sodium hydroxide as the solvent. The filtered leach solution, which contains sodium thioantimonate (Na3SbS4) is electrolyzed in a diaphragm cell fitted with mild steel electrodes. The cathode metal recovered is 93 to 99.5 percent antimony depending on ore

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Selection of antimony process and equipment Prominer ...

Flotation is the main beneficiation method for antimony ore. Antimony sulfide minerals are easy to float minerals, and most of them use flotation methods to improve ore grade. Among them: stibnite often first uses lead salt as activator, but also uses copper salt or lead salt and copper salt, and then uses collector flotation.

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(PDF) THE ART OF HEAP LEACHING Lee JOHN - Academia.edu

Leaching of high grade copper oxide ore is a first order lixivant controlled in so much as the lixivant supply to the mineral surface is constrained by lixivant concentration and percolation rate. However in low grade copper and oxide gold heap leaching the reaction is more diffusion controlled as the lixivant is mostly present in excess. Figure 5 shows a simplified shrinking

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CNLITE Eco-friendly Gold Leaching Reagent

Wide Range of Application: It is suitable for large and small scale of gold and silver oxide ore heap leaching, pool leaching, CIP, CIL and other leaching process, especially suitable for large-scale heap leaching. 6. Faster Leaching: When heap leaching, the reaction rate is faster than using sodium cyanide. 7. Lower Cost: Because of its special nature, it can reduce the cost of

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Antimony trioxide - Wikipedia

Antimony(III) oxide is the inorganic compound with the formula Sb 2 O 3. It is the most important commercial compound of antimony. It is found in nature as the minerals valentinite and senarmontite. Like most polymeric oxides, Sb 2 O 3 dissolves in aqueous solutions with hydrolysis. A mixed arsenic-antimony oxide occurs in the nature as the very rare mineral

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Mining - Antimony

Antimony is recovered from some complex ores by leaching, followed by electrowinning. A typical process uses sodium sulfide or sodium hydroxide as the solvent. The filtered leach solution, which contains sodium thioantimonate (Na3SbS4) is electrolyzed in a diaphragm cell fitted with mild steel electrodes. The cathode metal recovered is 93 to 99.5 percent antimony depending on ore

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Research on the Characteristics and Mechanism of the ...

Thus the composition of antimony smelting slag is chemically complex and may contain the antimony oxide losses and antimony compounds produced by redox reactions in the process of smelting under alkaline conditions. Through leaching in surface environments, the antimony compounds release antimony through hydrolysis. But under weak acid or alkali conditions, the hydrolysis of antimony

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lachansa PROCESSING

Complex antimony-bearing ores are sometimes processed by selective leaching followed by electrolysis of the leachate to recover the metal (Wang, 1952, p. 38-121; Plunkert, 1985; Li and others, 1992). “Crude antimony” and “crudum” are terms applied to ore that contains more than 90 percent antimony, and to liquated sulfide ore, which is essentially an antimony-sulfide

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Study on Recovery of Associated Copper Oxide Ore by ...

Arsenic and antimony are commonly used impurities in refined copper, which is extremely harmful to the conductivity of copper. In order to maintain the normal growth and oxidative activity of the leaching bacteria, it is necessary to pre-wash the ore with an acid agent [5]. However, due to the presence of alkaline calcium-magnesium gangue minerals, acid consumption is greatly

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Selection of antimony process and equipment Prominer ...

Hand selection of antimony ore is carried out by using the difference in color, luster and shape of antimony mineral and gangue in the extracted ore. This kind of beneficiation method is relatively primitive and labor-intensive, but it can produce large pieces of high-quality antimony ore concentrate. , Can reduce the cost and energy consumption of mineral processing.

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EP0806487A1 - Extraction of antimony from sulfide ores by ...

A hydrometallurgic and electrochemical process for processing sulfur antimony ores and residues is disclosed, the end products from which are electrolytic antimony and elemental sulfur. The concentrate of sulfur antimony ore, leached with a solution of caustic alkali according to the known techniques dissolves, as sulfur salts as much Sb as possible, whilst the other heavy

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US4559209A - Leaching refractory gold ores - Google Patents

A method is disclosed for leaching a gold ore which is refractory due to the presence of sulphide minerals of arsenic and antimony. The ground ore is leached with cyanide in a pipe reactor at a pressure of between 5 and 8 MPa. The terminal pH value of the pulp is controlled to be 10 or less than 10. US4559209A - Leaching refractory gold ores - Google Patents Leaching refractory gold ores ...

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antimony recovery from scrap

leaching antimony from oxide ore . Leaching and Solution Purification; Copper oxide ore; Copper scrap; Copper sulfide ore; impurities like as arsenic and antimony can be removed from the . Recover Gold Antimony in Flotation Tailings Froth . Froth Flotation (Sulphide Oxide) Leaching of gold, Sb, to be this material does not contains sulphides but rather oxide. There are three main antimony ...

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(PDF) THE ART OF HEAP LEACHING Lee JOHN - Academia.edu

Leaching of high grade copper oxide ore is a first order lixivant controlled in so much as the lixivant supply to the mineral surface is constrained by lixivant concentration and percolation rate. However in low grade copper and oxide gold heap leaching the reaction is more diffusion controlled as the lixivant is mostly present in excess. Figure 5 shows a simplified shrinking

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heap leaching of refractory gold ores

heap leaching of refractory gold ores . GM stone crusher machine is designed to achieve maximum productivity and high reduction ratio. From large primary jaw crusher and impact crusher to cone crusher and VSI series for secondary or tertiary stone crushing, GM can supply the right crusher as well as complete crushing plant to meet your material reduction

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CN103866121A - Method for preparing sodium antimonate from ...

The invention discloses a method for preparing sodium antimonate from an antimony oxide ore via an alkaline approach. The method comprises the following steps: (1) leaching the antimony oxide ore, (2) purifying filtrate, and (3) oxidizing the purified filtrate. The method is high in recovery rate, the leaching rate of antimony is 95-99%, the direct recovery rate of sodium

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Mining - Antimony

Antimony is recovered from some complex ores by leaching, followed by electrowinning. A typical process uses sodium sulfide or sodium hydroxide as the solvent. The filtered leach solution, which contains sodium thioantimonate (Na3SbS4) is electrolyzed in a diaphragm cell fitted with mild steel electrodes. The cathode metal recovered is 93 to 99.5 percent antimony depending on ore

More

Heap leaching method of antimony ores

SUBSTANCE: method involves ore pre-benefication with X-ray radiometric separation and further heap leaching of antimony from ore. At that, leaching is performed with solution containing sulphuric acid and sodium chloride in presence of manganese compounds of oxidation degree of not less than 3 or with solution containing chlorhydric acid, active chlorine and sodium

More

Removal of antimony (III) by iron-copper binary oxide from ...

1 Preparation and characterization of iron-copper binary oxide and its effective removal of antimony (III) from aqueous solution Yongchao Li a *, Bing Geng b, Xiaoxian Hu a, Bozhi Ren a Hursthouse Andrew S a,c a School of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411201, China b Institute of Environment and Sustainable Development

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Antimony Sb - PubChem

The blast furnace is generally used for mixed sulfide and oxide ores, and for oxidized ores containing up to about 40% antimony; direct reduction is used for rich oxide ores. Some antimony ores are treated by leaching and electrowinning to recover the antimony. The concentrates may be leached directly or converted into a complex matte first.

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Study on Recovery of Associated Copper Oxide Ore by ...

Arsenic and antimony are commonly used impurities in refined copper, which is extremely harmful to the conductivity of copper. In order to maintain the normal growth and oxidative activity of the leaching bacteria, it is necessary to pre-wash the ore with an acid agent [5]. However, due to the presence of alkaline calcium-magnesium gangue minerals, acid consumption is greatly

More

Leaching of gold ore,gold ore beneficiation process design ...

There are often arsenic, copper, antimony, iron, manganese, lead, zinc, nickel, cobalt and other metal sulfides and oxides in the ore. They have high solubility in alkaline cyanide solutions and consume a large amount of cyanide and Dissolved oxygen, and the formation of various cyanide complexes and SCN-, thereby affecting the oxidation and leaching of gold. The most

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Cyanide Leaching Of Gold - Mine Engineer.Com

Arsenic and antimony do present a larger problem, by reacting with the cyanide and using up all of the excess oxygen, leaving little or no oxygen to effect the dissolution of gold. Carbonaceous gold ores can have the carbon adsorb the gold onto its surface, and as a result will not be recovered from the pregnant solution. Leaching gold from sulfide ores is difficult, at best.

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A fundamental study of the alkaline sulfide leaching of gold

Keywords: Hydrometallurgy; Leaching; Gold 1. INTRODUCTION Many gold ores are problematic as they contain metal sulfides, such as pyrite, arsenopyrite and chalcopyrite. These ores are often refractory, as the gold is encapsulated within the sulfide matrix. In order to recover the gold, the host matrix must be destroyed. Over the past 100 years, roasting or smelting has been the

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Leaching, Washing, Or Dissolving Patents and Patent ...

The matte is mixed with sulfuric acid and manganese oxide and leaching is effected at atmospheric pressure to form an aqueous solution including dissolved metal sulfates and a residue containing sulfur and lead sulfate. The sulfur is removable by conventional means and the lead sulfate may be returned to the smelter. The pH of the aqueous sulfate solution is adjusted

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