method for processing pyritic concentrate containing gold copper

Gold Flotation Concentrate

Process Introduction. The flotation method is a widely used technique for the recovery of gold from gold-containing copper ores, base metal ores, …

Flotation behaviour of gold during processing of porphyry ...

Flotation behaviour of gold 901 16-( A Na2S'03 1 0 cmc 14-- a Na2SiO3/CMC 1:1 12-- -C 0 CM 11 N SIO~MC I, I io__ 8- - 6- 4-- 0 0 50 100 Ik 260 Reagent addition, W] Fig.8 Effect cif sodium silicate and CMC (carboxy methyl cellulose) on insol content in copper concentrate 18- 16 - . 7 2 14 0 Guar 13 CMC/par mixture 1: 1 12 10 8 6-7 4 2 osi 0 50 ...

C22B 11 - Obtaining noble metals - Patents Sitemap

CN103215435A Method for comprehensively recycling zinc, copper, lead, gold, silver and sulfur from floatation silver concentrate 07/24/2013 CN101942568B Method for recovering noble metal from ...

(PDF) Nitric Acid Leaching for Pre-Treatment of a Copper ...

The extraction of gold/silver from a copper-bearing pyritic gold concentrate (62 g/t Au, 110 g/t Ag and 0.3% Cu) in thiosulphate solutions was investigated in this study. ... method to cyanide ...

Unlocking Value in Copper Arsenic Sulphide Resources with ...

the technology necessary to process these difficult concentrates economically and responsibly. The CESL Process offers an attractive method for processing arsenic-bearing copper concentrates. CESL performed bench and pilot scale testing on four different arsenic challenged concentrates in 2010 with arsenic grades ranging from 0.7% to 4.6%.

US20190055623A1 - Method for recovering gold - …

Provided is a method of recovering gold, and optionally silver, from gold-bearing, and optionally silver-bearing, double refractory raw material, comprising the steps of (a) leaching the said gold-bearing, and optionally silver-bearing, double refractory raw material in a chloride containing leaching solution to dissolve gold and to obtain a leach solution comprising gold, and optionally ...

Guides For High-sulfide Gold Processing

High sulfide gold ore refers to 20% -30% of gold wrapped by sulfide (mainly pyrite). It is better to use gravity separation, flotation, or flotation-cyanidation process. The following is an analysis of specific beneficiation tests, and introduces four commonly used gold processing methods for high-sulfide gold ores.

method to concentrate copper pyrites

method to concentrate copper pyrites. Explain the method of concentration of copper pyrites,Copper pyrite Cu 2 S is the ore of copper in the sulphide form so here method of frothfloatation should be used for concentration In this method the fine powder of ore and water are filled in a big vessel and pine or turpentine oil is added to it The sulphide particles of metals get wet and stick to it ...

Copper Flotation - Mineral Processing & Metallurgy

The concentrate can then be reground and refloated with the production of a high-grade copper concentrate together with a low- grade pyritic tailing suitable for return to the roughing circuit. This method is likely to be less costly than one involving the fine grinding of the whole ore.

Early Developments in Treating Pyritic and Refractory Gold ...

Early Developments in Treating Pyritic and Refractory Gold Ores in Australia. Kenneth McQueen. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 37 Full PDFs related to this paper. Read Paper. Early Developments in Treating Pyritic and Refractory Gold Ores in …

Method for processing gold-bearing sulfide ores involving ...

Provided is a method for processing a gold-bearing sulfide ore which involves maintaining the ore in a substantially oxygen free environment, preferably beginning with comminution of the ore and ending when a desired final concentrate, enriched in sulfide minerals, is obtained by flotation.

Arsenic Removal from Lead Concentrate-Containing Mimetite ...

The presence of arsenic in base metal concentrates including copper, lead, and zinc creates problems such as low quality of final product and environmental issues. Therefore, additional processing steps for removing arsenic are required. Among several methods to reduce arsenic from these concentrates, alkaline leaching was selected as an efficient and simple method. In this …

smelting gold concentrate

Gold Smelting Kits Gold Prospecting Mining Equipment . First of all you must have gold or silver in your concentrates to begin with and the more of it the better The microwave gold smelting kiln is a tool for smelting only It does not separate out the precious metals that are in your concentrates You still need to have your end product called buttons assayed to determine its purity and content

C22B 11 - Obtaining noble metals - Patents Sitemap

CN102409183B Gold extraction method by pre-oxidation and cyanide leaching of refractory gold concentrate 08/21/2013 CN103261454A Process and plant …

Arsenopyrite Gold Recovery - Mineral Processing & Metallurgy

Some gold may also occur in solid solution in the sulfides. It is a common practice in processing pyritic gold ores to remove as much gold and sulfide as possible by gravity treatment and/or flotation. Classically, the arsenopyrite concentrate is contacted with …

Innovations in Copper: Mining & Extraction: Producing ...

Three of the processes introduced above have made great strides in solving these problems for the extraction of copper from chalcopyrite: The GEOCOAT™ Process - A heap leaching process that is capable of bioleaching copper concentrates. It does this by coating the concentrate slurry onto a support rock, or substrate material, and stacking this coated material in a bioxidation heap.

Major Mines & Projects | Phoenix Mine

Ore containing gold, copper, and silver values is processed by 1) crushing; 2) semiautogenous grinding (SAG) and ball mill grinding; 3) gravity concentration for free gold; 4) two-stage flotation to produce a copper sulfide concentrate containing copper, gold, and silver; 5) cyanidation; and 6) carbon-in-pulp (CIP) on the flotation tailings to ...

TACKLING IMPURITIES IN COPPER CONCENTRATES

during piloting. A novel process for leaching bismuth, without leaching any copper, is also discussed. Finally, selective zinc-only leaching test results from copper concentrate are presented. The deciding factor in the success of a particular approach is highly dependent upon the minerals that contain the impurity of interest.

CA2765926C - Method for leaching chalcopyrite …

The invention relates to a method for leaching bulk concentrate of chalcopyrite-type by means of an aqueous solution containing sulphuric acid and an oxygen feed at atmospheric pressure and at a temperature between 750C and the boiling point of the solution. It is typical of the method that the particle size of the concentrate to be fed into leaching is in the region of 80 % below 60 - 100 µm ...

Bioprocessing of mine waste: effects of process conditions ...

Pyritic tailings of copper-zinc ores could be a source for recovery of gold, as well as copper and zinc. The process of biooxidation of pyritic tailings at different temperature settings was studied and a process at 35 °C was the most efficient, where …

gold processing - Mining and concentrating | Britannica

gold processing - gold processing - Mining and concentrating: The nature of the ore deposit determines the mining and mineral processing techniques applied. Oxide ore deposits are frequently of such low grade (e.g., 3 to 10 parts per million) that extensive mineral processing cannot economically be justified. In this case they are merely shattered by explosives and then piled into heaps for ...

gold processing - Refining | Britannica

gold processing - gold processing - Refining: Gold extracted by amalgamation or cyanidation contains a variety of impurities, including zinc, copper, silver, and iron. Two methods are commonly employed for purification: the Miller process and the Wohlwill process. The Miller process is based on the fact that virtually all the impurities present in gold combine with gaseous chlorine more ...

Method for roasting sulphide ores - A. Ahlstrom Corporation

The method according to the invention is well suited e.g. for processing auriferous pyritic ores, and in some cases also for copper ores, such as copper pyrite or other metal-sulphide-containing ores having relatively high sulphur contents and a recoverable amount of precious metals.

concentrate machines copper

Feb 14, 2016 . We have many years copper oxide concentrate processing machines,, China Mining copper concentrate, copper concentrate ... Inquire Now; copper processing machines Feldspar Crusher. copper processing machines. ... The copper ore is mined copper ore, copper-containing high grade copper concentrate after beneficiation or copper ore

US20030154822A1 - Recovery of precious metals - …

A process for leaching precious metals from material containing precious metals, such as oxidic and sulfidic gold-bearing ores, is disclosed. The process includes the steps of: (i) leaching the precious metal with a leach solution containing a thiosulfate-based lixiviant; (ii) treating the material by oxidising precious metal in the material into a form that is leachable in a subsequent ...

Method for processing copper smelting materials and the ...

The present invention relates to a method for bringing sulphidic concentrates which contain high percentages of arsenic and/or antimony and which also possibly contain bismuth in quantities which are likely to disturb subsequent processing stages, to a state in which copper and/or precious metals can be recovered from said concentrates by heating the concentrate in a fluidized bed, to ...

Smelting low Pyrite Copper Concentrate

The concentrate can be effectively smelted when pyrite is replaced by sulfur or gypsum. The copper content of the matte can be substantially increased by substituting gypsum for pyrite. The addition of small amounts of metallic iron to smelting charges containing sulfur or gypsum increases the recovery of both sulfur and copper.

Post-regrind selective depression of pyrite in pyritic ...

The pyritic copper–gold ore used in this study was obtained from a copper–gold mine in Asia. The pyrite rougher concentrate was obtained by two-stage copper and pyrite rougher flotation using the conditions in Table 1 and reported in Agorhom et al. (2013).However, in the present studies, the focus is to examine flotation depression of pyrite after regrinding the combined pyrite rougher ...