Improvements in Processes for Separating Precious Metals from Ores.

    公开(公告)号:GB191117010A

    公开(公告)日:1911-09-14

    申请号:GB191117010D

    申请日:1911-07-25

    Abstract: 17,010. Island, J. S. July 25. [Addition to 13,488/10.] Silver thiosulphate.-In treating ores for the extraction of precious metals in the form of soluble salts by generating sulphuric and hydrochloric acids in contact with the ore and lixiviating, as described in the parent Specification, the silver chloride in the residue is converted to the form of a soluble salt by treatment with sodium thiosulphate or other solvent.

    Apparatus for Forming Oxides of Nitrogen.

    公开(公告)号:GB191211363A

    公开(公告)日:1913-08-13

    申请号:GB191211363D

    申请日:1912-05-13

    Abstract: 11,363. Island, J. S. May 13. Gases, treating with electric discharge.-Currents of air or other gas, issuing from a hollow electrode, form a flat ring in the hottest zone of a similar ring of flame produced by relative movement of the electrodes. As shown, the hollow positive electrode 1 is annular and is closely and finely perforated at a blunt internal edge 2. A rotating shaft 8 carries the negative electrode, consisting of flat arms 13 and curved bars 14, which present edges towards the annular electrode. The arms 13 are set so as to assist in driving the treated gas through a cooling-device 22, placed a little away from the electrodes. The arc chamber is lined with porcelain, silica, or the like, and other parts are treated so as to prevent corrosion by gaseous products.

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