Show differential FLOTATION wallace idaho miner at the meeting of the northwest minin mini association at spokane last week a highly higl interesting and instructive paper on dif ferent ial flotation was read by W L zei ze ler metallurgist of the success mining CoD co pany and superintendent of the success mm m mr zeigler has given much attention to abb tl subject which is being studied by mani ma metallurgists particularly in its app licati to lead zinc ores flotation is now un univ ivell sally used in the treatment of this class 01 I 1 ores and the problem to be solved is tosa to adjust the flotation solutions that the fint fi 1 particles of lead and zinc in the slimes v W i be recovered separately and more effective effect iv ly in other words to differentiate as th t name implies between the two metals ant a turn them out as separate shipping pm P ducts the extensive experiments condu ed by mr zeigler have accomplished very T definite results and justify the predict that it is only a question of time until hl will have the process perfected to an extent efte that it may be used on a commercial ba baa he has now actually solved the problem 02 a small scale through laboratory tests tes samples of the product of his may be seen at the office of the success bucce i mining company one of three bottled contains lead the other anc z inc and the CIA abi tailings all recovered from the slimes sf se abated by him through the experiment process of differential flotation the lead 1 is absolutely clean and is 79 per cent pa pua the zinc is 43 per cent and contains a litel lead the tailings are almost pure abit t and contain little more than a trace mineral it is believed that mr zeigler in advance of any other metallurgist in III tt work and that it will not be long until b will be able to announce the perfection oll his process if the differential process c ca be successfully adapted in the bt success ore it will add at least 50 per cel e to 0 o the profits obtained on the flotation P arct duct under tb tho present system |