This is an interesting development of the old decantation process, and while it contains the same principle, of displacement by successive dilutions, the action is
The slime pulp or slurry on leaving the sand classifier with its proper admixture of lime is first led to some form of thickening device
Many definitions of the word “slime” have been attempted to Leaching Fine Gold but the one that best expresses its meaning from a practical point
When the cyanide process was first introduced its application was confined to leaching, that is, treatment by percolation. By this method only such material could
It is obviously of the highest importance in controlling the action of a solution to find out what strength of cyanide and alkali it contains
This term is usually defined as “the alkaline hydrates and half the monocarbonates” whose action is to protect the cyanide from decomposition, by acids developed
To ascertain the presence of zinc add a few drops of sodium sulphide solution to 50 cc of the solution to be tested (which should
To assay for copper contained in a cyanide solution, the first essential step of the method is to completely decompose all the cyanogen compounds. For
The method usually given for detection of Sulphocyanate (Thiocyanide, Thiocyanate) is to acidify and add a ferric salt, a blood-red color indicating the presence of
Clennell gives among other cyanate assay methods the following based on the fact that when KCNO is treated with an acid it does not decompose into