Microwave pretreatment of a double refractory gold ore

Nanthakumar et al. (2007) investigated the use of microwave energy in pretreating a double refractory gold ore containing 1.56% sulphur and 5.96% total carbon. Wei et al (2009) applied microwave ...

اقرأ أكثر

Pretreatment Of Refractory Gold Ore With Microwaves

Double Refractory Gold Ores. Microwave pretreatment of a double refractory gold ore Double refractory gold ores such as Barricks Goldstrike ore contain both pyrite and carbonaceous matter and the latter results in the loss of gold from solution during cyanide leaching One possible remedy is to roast the ore and thus oxidize the pyrite and remove the organic carbon

اقرأ أكثر

Refractory Ore Gold And Pretreatment

microwave assisted pretreatment of refractory gold ores. Pretreatment of arsenicbearing gold ore with microwave . Microwaveassisted leaching as a clean and efficient method of strengthening leaching has been used in the pretreatment of complex and refractory ores such as chalcopyrite 14 15 nickel laterite 16 17 and sulfide concentrates .

اقرأ أكثر

microwave assisted pretreatment of refractory gold ores

Double refractory gold ores, . has studied the microwave pretreatment of refractory sulphidic ores and achieved gold . S.W. KingmanMicrowave-assisted . Leaching of Refractory Gold Ores by . Leaching of Refractory Gold Ores by Microwave Irradiation: Comparison with Conventional . pretreatment of refractory gold ores . microwave-assisted .

اقرأ أكثر

Effect of Pretreatment of Sulfide Refractory Concentrate ...

Keywords: Refractory Gold Concentrate; Hypochlorite Ox idation Pretreatment; Pressure Cyanidation . 1. Introduction . 1.1. Background . Many of the gold deposits contain finely disseminated gold in iron sulfide minerals such as pyrite and arsenopy- rite. Such deposits are called refractory gold ores due to

اقرأ أكثر

Microwave pretreatment of a double refractory gold ore ...

Microwave pretreatment of a double refractory gold ore. Abstract Double refractory gold ores, such as Barrick's Goldstrike ore, contain both pyrite and carbonaceous matter and the latter results in the loss of gold from solution during cyanide leaching. One possible remedy is to roast the ore and thus oxidize the pyrite and remove the organic ...

اقرأ أكثر

pretreatment of refractory gold ore with microwaves

microwave assisted pretreatment of refractory gold ores. pretreatment of refractory gold ore with microwaves. Carbonaceous gold ores are rendered amenable to a conventional cyanide recovery process by pretreatment with sodium hypochlorite or Used herein the term carbonaceous ore refers to a refractory ore that is one .. apparatus for microwave induced pyrolysis of arsenical ores and ore

اقرأ أكثر

Recovery of gold from sulfide refractory gold ore ...

Typically, gold is encapsulated or finely disseminated in refractory gold ores and the direct cyanidation is not effective for gold extraction from these ores, even after the ore is ground to exceeding small particles (Nazari, 2017, Corrans and Angove, 1991).Especially for sulfide refractory gold ores, in order to recover gold, many oxidation pretreatment technologies were proposed …

اقرأ أكثر

Study on microwave pretreatment of refractory ...

Download Citation | Study on microwave pretreatment of refractory microdimensional gold packaged by pyrite in gold ores | By using the heating feature of microwave, it has shown from condition ...

اقرأ أكثر

Pretreatment of a refractory arsenopyritic gold ore using ...

An arsenopyrite refractory ore was pretreated with NaOH to increase gold extraction. After pretreatment, gold and silver were leached with copper ammonium thiosulfate solution. Thiosulfate leaching of the as-received ore extracted only 21% and 29% of silver and gold, respectively. Up to 81% of the gold and 50% of the silver were recovered after ...

اقرأ أكثر

microwave assisted pretreatment of refractory gold ores

Provide professional mining equipment. Microwave pretreatment of refractory gold ores,the microwave pretreatment processes of refractory gold ores in solid and slurry, and effects of the microwave pretreatment on cyanide leaching are investigated the mechanism of microwave pretreatment is described the cyanide leaching recovery of Au in the sample is up to 50%89 19% with the solid microwave ...

اقرأ أكثر

Improvement of Gold Leaching from a Refractory Gold ...

Refractory gold ores have increasingly been the main source of gold production with the exhaustion of amenable gold ores. Of the 2630 tons of total world gold production in 2011, about 25% was produced from refractory gold deposits, and of the top 20 gold operations in 2011, eight were processing refractory ores [1].

اقرأ أكثر

Pretreatment Of Refractory Gold Ore With Microwaves

Microwave pretreatment of a double refractory gold ore. 01/09/2007· With regards to the application of microwaves to refractory gold ores, Haque, 1987a, In this paper, microwave pretreatment of a double refractory gold ore was investigated as an alternative method and the results are compared to conventional roasting.

اقرأ أكثر

Study on pretreatment of refractory gold ore by microwave ...

Download Citation | Study on pretreatment of refractory gold ore by microwave roasting method | Microwave roasting method was applied for the pretreatment of refractory gold ore (RGO). The ...

اقرأ أكثر

Refractory Gold Ore And Pretreatment

Microwave Pretreatment Of A Double Refractory Gold. Abstract Double refractory gold ores such as Barricks Goldstrike ore contain both pyrite and carbonaceous matter and the latter results in the loss of gold from solution during cyanide leaching.

اقرأ أكثر

microwave pretreatment of a refractory gold

pretreatment of refractory gold ore with microwaves. microwave pretreatment of a refractory gold. Microwave pretreatment of a double refractory gold ore Also, the one by Nanthakumar et al, where successful results with a double refractory gold ore (one of the most difficult to process) are presented [14], or the one by . More

اقرأ أكثر

pretreatment of refractory gold ore with microwaves

Microwave pretreatment of a double refractory gold Abstract Double refractory gold ores, such as Barrick's Goldstrike ore, contain both pyrite and carbonaceous matter and the latter results in the loss of gold from solution during cyanide leaching One possible remedy is to roast the ore and thus oxidize the pyrite and remove the organic carbon In this research, microwave roasting of a double ...

اقرأ أكثر

Leaching of Refractory Gold Ores by Microwave Irradiation ...

The present paper attempts to assess the effects of microwave irradiation on the leachability of refractory gold ores. Characteristics of the crystal structure and microstructure of the ores were determined by x-ray structural analysis (XRD) and scanning electron microscopy (SEM) before and after microwave irradiation. Compared to conventional processes, microwave leaching …

اقرأ أكثر

microwave pretreatment of a refractory gold

Microwave pretreatment of a double refractory gold ore ... One possible remedy is to roast the ore and thus oxidize the pyrite and remove the organic carbon.

اقرأ أكثر

Microwave pretreatment of a double refractory gold ore ...

Double refractory gold ores, such as Barrick's Goldstrike ore, contain both pyrite and carbonaceous matter and the latter results in the loss of gold from solution during cyanide leaching. One possible remedy is to roast the ore and thus oxidize the pyrite and remove the organic carbon.

اقرأ أكثر

Pretreatment Process on Refractory Gold Ores with As

1. Introduction. Gold ores are considered refractory if gold extractions from a conventional cyanidation process are less than 80% even after fine grinding. 1) Arsenic-bearing refractory gold ore has stones extremely difficult to deal with. In the stones, gold is locked up in arsenic mineral matrix as the form of microscopic or submicroscopic lattice.

اقرأ أكثر

Mechanism of synergistic pretreatment with ultrasound and ...

Refractory gold ore is becoming the main gold resources at present. The sulfide coating on the surface of gold inhibits the leaching of gold and incre…

اقرأ أكثر

Microwave Pretreatment Of A Refractory Gold

Microwave pretreatment of a double refractory gold ore . Sep 01, 2007 With regards to the application of microwaves to refractory gold ores, Haque, 1987a, Haque, 1987b has studied the microwave pretreatment of refractory sulphidic ores and achieved gold extractions of over 98% However, there is no information published on the microwave processing of the double refractory gold ores

اقرأ أكثر

pretreatment of refractory gold ore with microwaves

pretreatment of refractory gold ore with microwaves suphidic gold ore pretreatment. The treatment process of a low-grade refractory gold ore containing sulfi

اقرأ أكثر

pretreatment of refractory gold ore with microwaves

Microwave pretreatment of a double refractory gold ore. Download Citation Microwave pretreatment of a double refractory gold ore Double refractory gold ores such as Barrick s Goldstrike ore contain both pyrite and carbonaceous matter and the . Get Price; The Use Of Microwave In Refractory Ore Benification

اقرأ أكثر

Refractory Gold Ore Treatment Methods

At the plant of the Consolidated Murchison Co. in the Transvaal, South Africa, where a refractory high-antimony gold ore is being treated, flotation and cyanidation of the flotation concentrates and tailings are being practiced. The association of the antimony and gold is very intimate, and during 1946, while the antimony recovery amounted to ...

اقرأ أكثر

pretreatment of refractory gold ore with microwaves in ...

This page is about pretreatment of refractory gold ore with microwaves in johannesburg gauteng south africa, click here to get more infomation about pretreatment of refractory gold ore with microwaves in johannesburg gauteng south africa.

اقرأ أكثر

Pretreatment Of Refractory Gold Ore With Microwaves

microwave pretreatment of a double refractory . gold refractory ores microwave assisted recovery. gold refractory ores microwave assisted recovery gold refractory ores microwave assisted recovery [ 46 7647 Ratings ] The Gulin product line, consisting of more than 30 machines, sets the standard for our industry We plan to help you meet your needs with our equipment, with our …

اقرأ أكثر

pretreatment of refractory gold ore with microwaves

Microwave pretreatment of a double refractory gold ore. 2007. 9. 1.· Nanthakumar et al., 2007 56,investigated microwave roasting of a double refractory gold ore as an alternative method and the results were compared to those obtained by conventional roasting.

اقرأ أكثر

Types of refractory gold deposits - Fodamon Machinery

It is also called refractory gold ore or refractory gold ore. According to the different reasons for its difficulty, it can be divided into the following three categories. (1) Wrapped gold deposit. In this kind of gold ore, gold is wrapped in arsenopyrite, pyrite, arsenopyrite, chalcopyrite, pyrrhotite, galena, sphalerite and other sulfide ores ...

اقرأ أكثر