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Leaching antimony from oxide ore

  • EP0806487A1 - Extraction of antimony from sulfide ores by

    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 and

  • SELECTIVE EXTRACTION OF MERCURY AND ANTIMONY

    the bulky oxide precipitate, treatment of the soot for recovery of mercury was dif-ficult and costly. No records of mercury losses at thB Red Devil recovery plant were maintained. It is generally estimated, however, that recovery has averaged less than 70 percent and has been especially poor on ores of high antimony content.

  • Beneficiation of antimony oxide ore: A review SpringerLink

    Sep 07, 2017· Antimony oxide ore beneficiation has become one of the worlds largest mineral processing conundrums. In recent years, many experimental studies dealing with antimony oxide ore have been carried out, resulting in new technical achievements. Much attention has been paid to improving the mineral processing technology of antimony oxide based on such experiments.

  • GLYCINE AS A LIXIVIANT FOR THE LEACHING OF LOW GRADE

    interactions caused by the addition of 20 g/t pyrite to the -Cu oxide ore led to 60Au % Au dissolution which is a 36 % increase from that with no added pyrite. During the leaching of the Au-Cu sulfide ore, gold dissolution occurred concurrently with copper dissolution at 25 °C.

  • Refractory Gold Ore Treatment Methods - 911 Metallurgist

    Jul 14, 2016· Leaching and Recovering Gold from Antimony Minerals Stibnite (Antimony Sulphide, Sb2S2) This mineral in an ore acts as a weak acid, combining with alkalis to form salts, of the order of M1/3SbS2 and M1/3SbS4 alkaline sulphantimonite and sulphantimonate, especially in the presence of iron sulphides, using high concentrations of lime or alkalis.

  • Alkaline Oxidative Leaching of Gold-Bearing Arsenopyrite

    Leaching of a high-grade arsenopyritic ore containing, in percent, 28.2 As, 25.3 Fe, 19.9 total S, and 1.0 Sb and, in troy ounces per short ton, 1.6 Au and 5.5 Ag resulted in

  • 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 and precious metals

  • Copper extraction - Wikipedia

    Sulfide ores. Secondary sulfides those formed by supergene secondary enrichment are resistant to sulfuric leaching.These ores are a mixture of copper carbonate, sulfate, phosphate, and oxide minerals and secondary sulfide minerals, dominantly chalcocite but other minerals such as digenite can be important in some deposits.. Supergene ores rich in sulfides may be concentrated using

  • 10 ORE PROCESSING - Perpetua Resources

    Sep 21, 2016· Ore processing for the Stibnite Gold Project is the separation of gold, silver and antimony from its host At full production, a team of employees will process an estimated 20 r25,000 tons of ore per day. Oxide ore will be fed direct to vat leach and bypass flotation (see Figure 10 r1). Employees working in the ore

  • 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 antimonate is 90-95%

  • Study on Recovery of Associated Copper Oxide Ore by

    leaching fruits. In the study of bacterial leaching of copper oxide ores, the effects of leaching time and ore size on copper leaching can be investigated by shaking flask test, small-scale leaching column leaching test and enlarged column leaching test. The most common type of copper ore is tetragonal variant with medium temperature.

  • Hydrometallurgical Options to Add Value to Copper

    Leaching provides an opportunity to recover additional value e.g. Cobalt, Molybdenum, Rhenium, Indium, Uranium Copper Leach By-product Recovery Oxide ore / Concentrate Leach Circuit Air/ Oxygen Acid Copper Solvent Extraction Raffinate to Leach Bleed to by-product recovery and neutralisation Advance to EW or Crystallisation Limestone Neutralisation

  • United States Antimony Corporation

    USAC operates the only significant antimony smelter in the United States and it is in a "sold out" condition. The Company has proven experience in underground and open pit mining, flotation and gravimetric milling, crushing and screening, dry grinding, cyanide leaching, precious metal refining, pyro-metallurgy, and marketing.

  • CNLITE Eco-friendly Gold Leaching Chemicals

    CNLITE eco-friendly gold leaching chemical is a kind of leaching reagent that can replace sodium cyanide without changing the original equipment and cyanide process. Compared with the traditional leaching agent, CNLITE eco-friendly gold leaching reagent can truly achieve targets of green and environmental protection with no pollution.

  • Leach residues, zinc ore, lead-contg. - Registration

    Leach residues, zinc ore, lead-contg. EC number: 293-314-4 CAS number: 91053-49-5 Insoluble substance obtained during dissolution of zinc ores or concentrate in sulfuric acid for the production of zinc sulfate solutions after physical separation such as flotation and filtration.

  • 2ZnS 3O 2ZnO SO2 (1)

    The acidic leaching solution dissolves the remainder of the zinc oxide, along with metallic impurities such as arsenic, antimony, cobalt, germanium, nickel, and thallium. Insoluble zinc ferrite, formed during concentrate roasting by the reaction of iron with zinc, remains in the leach

  • Refractory Gold Ore Treatment Methods - 911 Metallurgist

    Jul 14, 2016· It is generally known that antimony can be readily volatilized, and by roasting stibnite (Sb2S2) in an oxidizing atmosphere, antimony oxide can be driven off and condensed. At the same time, anyone who has had experience with such roasting knows that it is a delicate process. To begin with it is impossible to drive off the antimony completely.

  • Electrolytic recovery of antimony from natural stibnite ore

    Nov 01, 1996· Sulphuric acid leaching Concentrated H2SO4 is an efficient solvent for the decomposition of sulphide and oxide antimony ores [19] and gives good recovery when used alone or, more frequently, in mixtures with other solvents.

  • New Processes for Cleaning Up Copper Concentrates E & MJ

    Alternatively, copper sulphate could be produced by processing oxide ore or tailings by leach-SX-EW. It is a patented alkaline leach process for the removal of arsenic, antimony and other penalty elements from copper, lead and nickel sulphide concentrates, and antimony from gold concentrates. The flowsheet consists of an atmospheric tank

  • 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.

  • Extraction of antimony from antimony sulfides bearing

    Natural ores containing antimony sulfides, or concentrates derived from such ores, are commonly roasted in air to recover the antimony values as the metal or oxide. This process generates large quantities of SO 2 gas, an objectionable air pollutant. The roasting process also converts arsenic present in the ore to arsenic compounds incorporated

  • Hydro-metallurgical preparation of the oxides of antimony

    A process for the production of antimony oxide and/or antimonic acid from stibnite-bearing ores and ore concentrates which comprises: 2. The process as claimed in claim 1 in which ammonium hydroxide is present in the leach solution in an amount of up to about 18 percent by weight of the leach solution.

  • Leaching Kinetics of Antimony from Refractory Gold Ore in

    Dec 01, 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.

  • Albion Process - Recent Developments on Copper Projects

    Oxide ore / Concentrate Leach Circuit Air/ Oxygen Acid Copper Solvent Extraction Raffinate to Leach Bleed to by-product recovery and neutralisation leaching technology to remove arsenic and antimony from copper concentrates. Concentrate and Leaching

  • Antimony Trioxide (Properties, Uses) - Assignment Point

    The wet method involves generating antimony trichloride by leaching sulfur antimony ore with hydrochloric acid and then hydrolyzing it with caustic soda. Crude stibnite is oxidized to crude antimony(III) oxide in furnaces that operate at temperatures ranging from 500 to 1,000 degrees Celsius. The reaction is the following:

  • Leaching, Dissolving, Or Extracting Prior To Synthesis

    Abstract: A method for production of potassium antimony tartrate by utilizing one or more residues bearing antimony includes the step of leaching of the one or more residues bearing antimony for a first pre-determined time interval in each of one or more jacketed reactors. In addition, the method includes filtering obtained slurry from a leached solution of the one or more residues products

  • Extraction of Metals (Metallurgy) Overall Science

    Oct 09, 2020· Leaching method is used for concentrating ores of aluminium, silver, gold,, etc. For example, bauxite ore containing iron oxide as impurity is leached with 45% NaOH solution. Al 2 O 3 dissolves in alkali to form soluble meta-aluminate while the impurities are left behind. A 2 O 3 + 2NaOH 2NaAlO 2 + H 2 O

  • Cyanide Leaching Of Gold - Mine Engineer.Com

    Leaching gold from sulfide ores is difficult, at best. Generally, the recovery for cyanide leaching of sulfide or refractory ores is no better than 30%, which is not a worthwhile venture. The use of alkalies such as calcium oxide, will prevent the decomposition of

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

    HEAP LEACHING TECHNIQUE in MINING Within the Context of BEST AVAILABLE TECHNIQUES (BAT) Supported by Euromines The European Association of Mining Industries, Metal Ores & Industrial Minerals. By Levy Museza. Coppergold ore processing with ion exchange and SART technology.

  • copper ore leaching electrolytic

    Copper Ore Carbonate Leaching Process . Copper Ore Carbonate Leaching Process Most of the copper ores mined today are oxide or sulfide ores. Extraction of sulfide ores is covered in more detail in Copper Mining and Extraction Sulfide Ores 1114, but is introduced here because an

  • CNFREE Eco-friendly Gold Leaching Reagent,CNFREE Gold

    Operating Instruction. Ingredients: sodium oxide, nitrogen, ammonium, calcium, iron, etc. Usage: while being used, the non-cyanide gold extraction reagent must be agitated with alkaline water at normal temperature, and then dissolved in a slurry to do gold leaching.In the process of heap leaching, pool leaching and CIP production of oxidized gold ore, the process is as same as the process of

  • Leaching of gold ore,gold ore beneficiation process design

    Sep 02, 2020· 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

  • Research on the Characteristics and Mechanism of the

    Jul 18, 2017· We aimed to study the characteristics and the mechanism of the cumulative release of antimony at an antimony smelting slag stacking area in southern China. A series of dynamic and static leaching experiments to simulate the effects of rainfall were carried out. The results showed that the release of antimony from smelting slag increased with a decrease in the solid-liquid ratio, and the

  • antimony recovery from scrap

    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

  • Oxidative Chlorination Leaching of Stibnite Using Acidic

    antimony trioxide (Sb 2 O 3) from indigenous antimony ore. The developed process includes oxidative chlorination leaching of stibnite (Sb 2 S 3) concentrate assaying 64.86% Sb prepared from indigenous low-grade ore containing 20.16% Sb using ferric chloride (FeCl 3) solution in acidic medium as

  • 4 Reasons and Solutions of Poor Gold Leaching Effect

    Jun 22, 2020· When the content of soluble copper and zinc in the gold ore is small, the amount of oxide can be increased when the consumption of cyanide does not cause economic loss. But it should be noted that it should be operated at a low temperature and a low cyanide concentration. the impurity minerals containing antimony, selenium and the fine

  • Alkaline Oxidative Leaching of Gold-Bearing Arsenopyrite Ores

    Leaching of a high-grade arsenopyritic ore containing, in percent, 28.2 As, 25.3 Fe, 19.9 total S, and 1.0 Sb and, in troy ounces per short ton, 1.6 Au and 5.5 Ag resulted in

  • CNLITE Eco-friendly Gold Leaching Reagent

    Operating Instruction. Constituent: Sodium Oxide, Ammonium, Nitrogen, Iron, Calcium, etc. Usage: CNLITE is used in the same way as sodium cyanide in heap leaching, pool leaching and agitation leaching of gold ore. The reagent can be dissolved in solution with gold cyanide extraction. When used, the CNLITE gold leaching agent must be agitated with alkaline water at normal temperature and then

  • Ozonation leaching of a complex sulfidic antimony ore in

    Jan 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.

  • U.S. GeoloGICAl SURvey CIRCUlAR 1196Q

    scrap is used for rich oxide ores, and complex ores are treated by leaching and electrolysis (wang, 1952, p. 10-20). roasting the ore to yield a volatile trioxide or the stable nonvolatile trioxide is the only pyrometallurgical procedure suit-able for low-grade ores (5 to 25 percent antimony content). The method and equipment used can vary, but