Electric Smelting and Refining: The Extraction and Treatment of Metals by Means of the Electric CurrentCharles Griffin, 1897 - 416 Seiten |
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Seite 40
... cryolite or other fluorides . If the quantity of iron present be neither too small nor too great , it is carefully precipitated by the addition of soda , with the precaution that any ferrous salts shall be previously peroxidised by the ...
... cryolite or other fluorides . If the quantity of iron present be neither too small nor too great , it is carefully precipitated by the addition of soda , with the precaution that any ferrous salts shall be previously peroxidised by the ...
Seite 42
... cryolite , Ál , F . 6NaF ; as sulphate , in Glauber's salt , Na2SO4 . 10H0 ; as nitrate , in Chili saltpetre , NaNO ,; as borate , in borax , Na , B , 0 ,. 10H2O , and other borates ; as carbonate , in soda , Na , CO . H2O , and in ...
... cryolite , Ál , F . 6NaF ; as sulphate , in Glauber's salt , Na2SO4 . 10H0 ; as nitrate , in Chili saltpetre , NaNO ,; as borate , in borax , Na , B , 0 ,. 10H2O , and other borates ; as carbonate , in soda , Na , CO . H2O , and in ...
Seite 101
... corundum , sapphire , and emery ; the hydroxide is present in diaspore , bauxite , and hydrargillite ; and the salts are thus represented : -The fluoride by cryolite ; the sulphate by the alums , alunite , and alum shale ; the silicates.
... corundum , sapphire , and emery ; the hydroxide is present in diaspore , bauxite , and hydrargillite ; and the salts are thus represented : -The fluoride by cryolite ; the sulphate by the alums , alunite , and alum shale ; the silicates.
Seite 102
... cryolite in that of soda and pure aluminium hydroxide and oxide ; and the hydroxide in producing the pure oxide and hydroxide ; whilst corundum was used in the Cowles process for the direct production of aluminium alloys . None of the ...
... cryolite in that of soda and pure aluminium hydroxide and oxide ; and the hydroxide in producing the pure oxide and hydroxide ; whilst corundum was used in the Cowles process for the direct production of aluminium alloys . None of the ...
Seite 103
... ( cryolite ) for the chloride ; and in place of sodium , the use of which had been retained by Rose , Beketoff † employed magnesium . But the principal interest at present centres in Grabau's process , which is excellent in all its ...
... ( cryolite ) for the chloride ; and in place of sodium , the use of which had been retained by Rose , Beketoff † employed magnesium . But the principal interest at present centres in Grabau's process , which is excellent in all its ...
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Häufige Begriffe und Wortgruppen
alkaline alkaline earth metals alloy alumina aluminium aluminium fluoride amperes per sq anode antimony apparatus arrangement bath bismuth Borchers bottom calcined calcium carbon rods cathode cell cent cerium charge chemical chloride chromium compartment compounds conductor connection consists containing crucible cryolite cuprous current density cyanide decomposed deposited described dissolved dynamo electric current electrodes electrolyte electromotive force employed Engineering English Patent experiments extraction fluoride furnace fused German Patent gold grms heat hydrogen impurities insoluble iron latter lead liquid lithium magnesium material matte melting vessel mercury metal metallurgical method metre mixture nickel obtained operation oxide oxidised oxygen placed plant plates pole potassium practical precipitated production proportion pure quantity reduced refining residue reverberatory furnace roasted salts separated Siemens silver smelting sodium soluble solution specific gravity substances sufficient suitable sulphide sulphuric acid surface tank temperature tion treated treatment tube vats volts whilst wire zinc zinc sulphate
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Seite 155 - Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is (d).
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Seite 29 - NYSTROM'S POCKET-BOOK OF MECHANICS AND ENGINEERING. Revised and Corrected by W. DENNIS MARKS, Ph.B., CE (YALE SSS), Whitney Professor of Dynamical Engineering, University of Pennsylvania. Pocket Size. Leather, 155.
Seite 32 - MANUAL OF CIVIL ENGINEERING : Comprising Engineering Surveys, Earthwork, Foundations, Masonry, Carpentry, Metal Work, Roads, Railways, Canals, Rivers, Waterworks, Harbours, &c. With Numerous Tables and Illustrations. Crown 8vo. cloth. TWENTY-SECOND EDITION. 16s. A MANUAL OF MACHINERY AND MILLWORK : Comprising the Geometry, Motions, Work, Strength, Construction, and Objects of Machines, &c.
Seite 37 - Principal Medical Officer, Seamen's Hospital, Greenwich. ".* The attention of all interested in our Merchant Navy is requested to this exceedingly useful and valuable work. It is needless to say that it is the outcome of many years PRACTICAL EXPERIENCE amongst Seamen.
Seite 7 - Barrister-at-Law. Public Analyst for the County of Devon, and Medical Officer of Health for St. Marylebone.
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Seite 42 - A MANUAL OF MARINE ENGINEERING: COMPRISING THE DESIGNING, CONSTRUCTION, AND WORKING OF MARINE MACHINERY.
Seite 38 - Micro-Structure of Metals and Alloys. — Economic Considerations. " No English text-book at all approaches this in the COMPLETENESS with which the most modern views on the subject are dealt with. Professor Austen's volume will be INVALUABLE, not only to the student, but also to those whose knowledge of the art is far advanced.
Seite 29 - A POCKET-BOOK of ELECTRICAL RULES and TABLES For the Use of Electricians and Engineers.