Feb 05, 2013· From "Getting Gold: A practical treatise for prospectors, miners and students" Written by JCF Johnson, FGS (1898) The most scientific and perfect mode of gold extraction (when the conditions are favourable) is lixiviation by means of chlorine, potassium cyanide, or other aurous solvent, for by this means as much as 98 per cent of the gold contained in suitable ores can be converted into .
chlorine extraction of gold - davidpalmisanoeu extraction of gold and silver with chlorine compounds extraction of gold and silver with chlorine compounds description PE series jaw crusher is usually used as primary crusher in quarry production lines, mineral ore Chat With Sales
The method of extraction in solution compounds of platinum metals, gold and silver, including the hydrochlorination of raw materials hydrochloric acid and gaseous chlorine, characterized in that before leaching the raw material is kept in the atmosphere of inert gas at 650 - 1000 o C, then cooled in an atmosphere of inert gas and the .
The extraction of gold from its ore is accomplished using the cyanide process The cyanide process has severe air and water pollution problems which are costly to prevent The use of chlorine in the metallurgy of gold could eliminate the water and air pollution problems
The so-called " brown gold " is formed by the action of nitric acid on an alloy of gold and silver containing 20 per cent, of gold The silver dissolves, leaving the gold as a brown, spongy sheet, reconverted at 1040° C into ordinary gold The brown form (β) differs from ordinary (α) gold in density and magnetic properti
Roasting temperature and percentage of O 2 in the gas flow do not seem to show any effect on the gold extraction yield, whereas at highest temperature (650 °C) the silver extraction yield decreases to around 40% (3) Cu, Pb and Zn are contained in the concentrate as sulfides (see Table 2), whereas As is present as arsenopyrite After the .
Extraction of Silver by cyanide process and its us Silver also occurs both in combined state as well as in free state The important ores of silver are: Argentite (Ag 2 S), Copper silver glance, Horn silver, Ruby silver The silver ores are found along with gold ores in some parts of India
Gold is also dissolved by liquids containing chlorine and bromine, but the action is much slower than that of aqua regia; and subject to the same difficulties if silver is present; heat assists the dissolution Iodine only dissolves gold if it is nascent, or if heated with gold and water in a sealed tube to 50°
Gold processing, preparation of the ore for use in various products Native gold is the most common mineral of gold, accounting for about 80 percent of the metal in the Earth’s crust It occasionally is found as nuggets as large as 12 millimetres (05 inch) in diameter, and on rare occasions .
elements and compounds that extract gold Extracting Gold How Gold Works , Qualities Gold is a chemical element so it can , dissolve in either nitric acid The insoluble gold cyanide compound AuCN >Gold [Get Price] Elements and Compounds Questions including , Answers, Get Price; Atoms, elements and compounds For example, lead and gold are .