Chemical engineering . thancorresponds to the formula CaSO., + USO,. The hydrosul-phite 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 last one of th^ series to the reservoirbv means of a pump. Salts of bari
Chemical engineering . thancorresponds to the formula CaSO., + USO,. The hydrosul-phite 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 last one of th^ series to the reservoirbv 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 Ores.—P. G. Salom, 778,901, January 3, 1905. .\pplication filed , 1903. The process, though claimed to be applicable to all leadores, including argentiferous lead, is described as applied to. FIG. 2.—.\\tcs for reductkjx of le.\d from G.\LEN.\. the reduction of galena, presumably as carried out in works at Niagara Falls, which have been describedrepeatedly in Electrochemical Industry. The finely groundore is spread continuously on the cathode in a very thinlayer, and is left there until 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 Fig. 2. Its construction varies to some extent from thatdescribed and illustrated in Electrochemical Industry, Vol. IEHRiAKv, 1905] ELECTROCHEMICAL AND M .\LLrR( MCAL IXDlSTRV. pagi- J9J, especially as regards llic movable pan, ihc anodebeing movable in the former construction, while the cathodewas stationarj-, whereas in the one under consideration thecathode is movable and the anode stationary. The apparatusconsists of a rotating table A. which is supported by a fixedcentral po
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmetallu, bookyear1902
