Extraction of Gold
Bromine acts more energetically than chlorine and has also been employed in the extraction. The recovery of the gold is effected similarly and the bromine is then liberated by the action of chlorine but it is impossible to prevent loss of bromine. Cyanideprocess The extraction of gold by the cyanidemethod is of great technical importance.
Plattner Gold Chlorination Process 911metallurgist.com
The Plattner process in which the gold is dissolved by means of gaseous chlorine acting on moist ore. The actual solvent is really a saturated solution of chlorine in water. The Barrel process in which a supersaturated solution of chlorine in water is used the chlorine being kept in solution by an atmosphere of chlorine of a few pounds
The Chlorination of Gold Ores. Digitised Collections
The history of the chlorination process is interesting and not commonly known so that a brief account of it will not be out of place. Dr. Percyrightly called the father of English Metallurgy in 1848 read a paper on the value of chlorine as a means of extracting gold from ores in the same paper he suggested the
The iGoli mercuryfree gold extraction process
Abstract. Mintek has developed a process called iGoli Mercuryfree Gold Extraction Process that can be used to extract gold from 0.1 gold concentrate to produce 99.90 percent gold product. The
PDF A method for leaching or dissolving gold from ores or
The hydrometallurgical leaching of native gold from goldbearing ores or the dissolution of gold metal during the recycling of electronic and precious metal scrap is performed every day using
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Gold Chlorination Processes and Methods
Chlorination Process for Gold. This process was based on the fact that chlorine in the presence of moisture converts gold into the trichloride AuCl3 which is soluble in water and removed by washing the gold being then precipitated by ferrous sulphate sulphur dioxide hydrogen sulphide or charcoal. Coarse gold requires long contact and
Manufacturing Process Of Gold Find Manufacturing Process Of Gold
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History Trilogy Refinery
The process of extracting gold from ores by absorption of the precious metal in chlorine gas from which it is reduced to a metallic state is not a very new discovery. It was first introduced by Karl Friedrich Plattner around 1848 and at that time promised to revolutionize the processes for gold extraction.
CN102002600A Environmentallyfriendly chlorine water gold
The invention belongs to the field of wet metallurgy and discloses an environmentallyfriendly chlorine water goldextracting process for leaching gold from chlorine water for goldcontaining waste or waste residue and removing toxic substances produced in the goldextracting process to purify air so as to fulfill the purpose of environmentallyfriendly gold extraction.