Electrochemical and metallurgical industry . corresponds to the formula CaSO. -|- H,SO,. The hydrosul-phitc of calcium, ,, is stated to deposit at the cathodein the form of a heavy crystalline mass, which falls down tothe bottom of the cathode receptacle. In this way a decom-position of the salt, either by electrolysis or by the influence ofthe atmosphere, is avoided. The cathodic electrolyte circu-lates through the cathode compartments, flowing from areservoir to the first one and successively through the others,being returned from the one of the scries to the reservoirby means of
Electrochemical and metallurgical industry . corresponds to the formula CaSO. -|- H,SO,. The hydrosul-phitc of calcium, ,, is stated to deposit at the cathodein the form of a heavy crystalline mass, which falls down tothe bottom of the cathode receptacle. In this way a decom-position of the salt, either by electrolysis or by the influence ofthe atmosphere, is avoided. The cathodic electrolyte circu-lates through the cathode compartments, flowing from areservoir to the first one and successively through the others,being returned from the one of the scries to the reservoirby means of a pump. Salts of barium, strontium, magnesiumand aluminium are stated to be produced in a similar particulars are given concerning the current density or thevoltage required for the process. Process of Reducing Lead Orcs.— l\ G. Salom. January 3. 1905. Application filed Apr:l17. The process, though claimed to be applicable to all leadores, including argentiferous lead, is described as applied to. H(. J. —AIIAKATI S FOK CATHOIlH HKUI C OF LEAD the reduction of galena, presumably as carried out in s works at Niagara Falls, which have been describedrepeatedly in Elf.(Tkoc hemic AL The finely ground• •re is spread on the cathode in a very thinlayer, and is left there tintil it is completely reduced, the re-duced lead being also removed continuously. The .apparatusin which the reduction is carried out is shown in cross-sectionin l ig. J. Its construction varies to some extent from thatdescriljcd and illustrated in , Vol. akv, JlLECTRC )C1 IIIMTCAL AXl) M K( iU AL 1 X1 )lSl-fn 73 ?• page 392, especially as regards the movable part, the .-modebeing movable in the former construction, while the cathodewas stationary, whereas in the one under consideration thecathode is movable and the anode stationary. The apparatusconsists of a
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Keywords: ., bookcentury1900, bookdecade1900, booksubje, booksubjectmetallurgy
