ANTIMONY PROCESSES.
(by telegraph—special connßsroN'nEKT.J Auckland, April 4. With roferenco to a Wellington telegram published yesterday 'morning, stating that Mr. P. Cotton, of Sydney, : had invented a process for the. production of "Star" anti-mony-from tho crude ore, a "Herald" representative was informed yesterday by Mr. A. T. Firth that there was already a process hero for the production of "Star' l,antimony, aud the New Zealand patent rights have been secured for it. This was an automatic process for treatment of concentrates, find was worked by means of a continuous furnace. Mr. Cotton's process dealt with tho lumps of ore, and 'had no continuous furnace, as far as could be learner]. The local process was in. tho hands of tho Complex Ore-Refining Process, • Limited, and tho patent rights were held both for tho oxihydro process and tho automatic- furnaoe, by wluclr concentrates might bo reduced from the sulphide to the oxidised or metallic state as required, at a high temperature in an atmosphere of carbon . monoxide and hydrogen.- Antimony, unliko most othermetals, was volatilised and/ passed off with the gases to. tho condensing chambers, where it was obtained as an-oxide, which, when melted, produced "Star", antimony.; ■
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Dominion, Volume 1, Issue 165, 6 April 1908, Page 9
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195ANTIMONY PROCESSES. Dominion, Volume 1, Issue 165, 6 April 1908, Page 9
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