NEW WAY OF TREATING ORE.

Ohinemuri Gazette, Volume VII, Issue 275, 26 September 1896, Page 6

NEW WAY OF TREATING ORE.

A new method claimed by M. do Regaurd for the treatment of gold ores !is as follows: The ore, ore tailings, is treated with tetwi-chloride of sulphur, which, coming in contact with water, is at once decomposed, forming sulphurous hydrochloric acid as well as a little sulphuric acid and free sulphur, but when auriferous mineral is present other reactions will ensue, with the ultimate result that chlorine is rapidly freed. The inventor expects' to extract all of the gold contained in the tailings, slimes, or whatever he may be treating. His. estimate of cost of treatment is at present drawn up upon the expectation of handling such tail- . ings as are still plentiful in South Africa and many other places, and on the scale of 100 tons a day, he figures that the delivery to the tanks will cost 67 centimes (13-i cents) per ton* the cost of labor w ill be 150 centimes per ton, chemicals and supplies 50 centimes, general expenses 1 franc 40 centimes, making a total cost of 3 francs 97 centimes, to which mnsf be added the cost of the purchase of the tailings. In his own estimate, basing the cost of the tailings at 3 francs per ton, and adding 2 francs per ton for a sinking fund, he arrives at a total cost of nearly 9 francs, or in round figures, eight shillings per ton.