Show RAPID CYANIDE PROCESS description of the system for treatment of low grade ores chicago al mining ining and engineering world the american rapid cyaniding Cyan iding company of detroit midi alich reports the installation of a rapid cyaniding cyan iding apparatus at the suffolk mill ophir san miguel county colo operated by the ophir gold mines milling power company george B pickett vice president and general manager ore is run from a bin through crushers then to a stamp mill where it is further crushed in a cyanide solution and conducted through a tube mill and reduced to about mesh the is then delivered to a apparatus comprising a launder and where the pulp is heated additional cyanide supplied progressively gres to maintain its strength and the pulp continuously agitated in the presence of the oxygen until contact is formed between the values and the solution from the end of the the pulp is conducted to settling works clarified solution bearing the values decanted filtered and conducted through zinc shaving boxes in the usual manner A complete cycle from the ore bins through the stamps the tube mills the reinhol launder and lix ivator to a settling tank passed through a filter into and through the zinc boxes and the solution returned to the stock tank was made in eleven minutes recoveries indicated 96 per cent of the gold and 98 per cent of the silver in the ores at a loss of 5 per cent of the strength of the solution demonstrations of the process and apparatus were in charge of A J engineer metallurgist of the liberty bell mining alining milling company telluride colo and walter L reid cyaniding cyan iding engineer of the smuggler union mill telluride witnessed the plant in operation the inventor D C of washington D C superintended super intended the installation of the apparatus assisted by david W and wesley B sibley respectively vice president and general manager and mechanical engineer of the american rapid cyaniding Cyan iding company the inventions of mr amr Rai nohl are patented in the principal gold producing countries of the world and are attracting the attention of the industry to which they relate negotiations are pending for fully fifty plants and the company has arranged for their manufacture to supply the demand |