Gold Extraction

Ferrocyanides

The study and use of ferrocyanides was initiated with the discovery of the pigment ?Prussian Blue? by Diesbach in 1704. Thus, they are among the earliest commercial chemicals and have been produced in large quantities for many years. In the United States, American Cyanamid Company, with its ample supplies of cyanides

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By | 2017-06-20T09:44:41+00:00 June 5th, 2017|Categories: Cyanide Leaching|Comments Off on Ferrocyanides

Batch Cyanidation Leach of Flotation Concentrate

grinding-flotation-batch-cyanidation

The production of gold bullion from gravity or flotation concentrates is often an important economic consideration for an isolated gold mining operation. It is assumed in this case that the coarse free gold has been recovered by the Mineral Jig in the grinding circuit and that the jig concentrate has been amalgamated. This treatment produces

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By | 2017-05-24T14:48:17+00:00 May 24th, 2017|Categories: Cyanide Leaching, Flowsheets & Flowcharts|Comments Off on Batch Cyanidation Leach of Flotation Concentrate

Cyanide Destruction Hypochlorite / Chlorine

In the Cyanide Destruction by Hypochlorite reaction, the pH has a strong inverse effect on the ORP. Thus, wastewater treatment facilities must closely control the pH to achieve consistent ORP control, especially if they use hypochlorite as the oxidizing agent. Adding hypochlorite raises the pH, which, if unchecked, lowers the ORP. calling for additional

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By | 2017-03-19T08:37:04+00:00 March 13th, 2017|Categories: Cyanide Leaching, Reagents and Chemicals|Comments Off on Cyanide Destruction Hypochlorite / Chlorine

De-Silverizing Bullion

The de-silverizing of base bullion is carried out in accordance with the principles of the well-known Parkes process.

The base bullion produced by the blast furnace department carries (apart from silver values) impurities, the chief of which are copper, antimony, and arsenic.

In order to more clearly indicate the grade of the base bullion, the following

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By | 2017-03-17T19:08:11+00:00 December 22nd, 2016|Categories: Gold Refining, Laboratory Procedures|Tags: |Comments Off on De-Silverizing Bullion

Carlin Style Mineralisation Deposit Examples

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goldstrike deposit Carlin Style Mineralisation Deposit Examples at Goldstrike

This section on Carlin Style Mineralisation Deposit Examples will give you a quick run through of a couple of actual Carlin deposits to give an idea of their characteristics; we will begin with Barrick?s goldstrike deposit, it?s in the north of the Carlin trend. Gold

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By | 2017-03-17T19:12:19+00:00 November 24th, 2016|Categories: Geology, Gold Extraction|0 Comments

Fire Assay Procedure

Fire assaying has been practiced since ancient times and has proven to be very reliable in the determination of precious metal. References to fire assaying are found in the old testament of the Bible and artefacts in past civilizations’ ruins. Assaying began to appear in French and English literature in the 12th century and from

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By | 2017-03-22T10:13:44+00:00 November 23rd, 2016|Categories: Gold Extraction, Laboratory Procedures|Tags: |Comments Off on Fire Assay Procedure

Mesothermal and Greenstone Gold Deposits AKA Orogenic Geology Formation

online-geology-courseMesothermal gold deposits form half way up through the rise of the melt from the deep crust to the surface usually at a depth of less than 10 km but greater than 1 km. temperatures at these depths are generally somewhere between 450 degrees and 250 degrees Celsius. The term mesothermal veins is really a sack term, referring simply to the depth

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By | 2017-03-17T19:12:24+00:00 November 23rd, 2016|Categories: Geology, Gold Extraction|0 Comments

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We have all the laboratory and plant equipment you need to test or build/operate your plant.

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We Sell EQUIPMENT for all types of Mineral Treatment PROCESSES and Laboratory Testing needs

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We can IMPROVE ALL PLANTS / Mineral Processing Engineering & LABORATORY Ore Testing

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