Minutes of Proceedings of the Institution of Civil Engineers, Band 135The Institution, 1899 Vols. 39-204 (1874/75-1916/17) have a section 3 containing "Abstracts of papers in foreign transactions and periodicals" (title varies); issued separately, 1919-37, as the institution's Engineering abstracts from the current periodical literature of engineering and applied science, published outside the United Kingdom. |
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Seite 29
... amount of nickel contained in the ore averaging between 2 per cent . and 10 per cent . , the lower proportion being the more common . It is worthy of note that pyrrhotine Proceedings . ] ROBERTS - AUSTEN ON THE EXTRACTION OF NICKEL . 29.
... amount of nickel contained in the ore averaging between 2 per cent . and 10 per cent . , the lower proportion being the more common . It is worthy of note that pyrrhotine Proceedings . ] ROBERTS - AUSTEN ON THE EXTRACTION OF NICKEL . 29.
Seite 35
... lower when much iron is pre- sent . From this tower the ore is conveyed continuously to the fourth operation ( 4 ) of volatili- zation , in which part of the nickel is taken away by carbon- monoxide and forms the com- The MARKET COPPER ...
... lower when much iron is pre- sent . From this tower the ore is conveyed continuously to the fourth operation ( 4 ) of volatili- zation , in which part of the nickel is taken away by carbon- monoxide and forms the com- The MARKET COPPER ...
Seite 36
... lower , and does not exceed 100 ° C. From the volatilizer , the ore is returned to the reducer ( 3 ) , and it continues to circulate between stages ( 3 ) and ( 4 ) for a period varying between 7 days and 15 days , until about 60 per ...
... lower , and does not exceed 100 ° C. From the volatilizer , the ore is returned to the reducer ( 3 ) , and it continues to circulate between stages ( 3 ) and ( 4 ) for a period varying between 7 days and 15 days , until about 60 per ...
Seite 37
... lower part of the plan , Figs . 1 , Plate 1 , which communicates , through a rotary valve , with the conveyor , consisting of a tube enclosing a revolving spiral , which transports the material to an elevator . This lifts the material ...
... lower part of the plan , Figs . 1 , Plate 1 , which communicates , through a rotary valve , with the conveyor , consisting of a tube enclosing a revolving spiral , which transports the material to an elevator . This lifts the material ...
Seite 38
... lower shelves are not heated by producer gas , but are cooled by a stream of water in order to reduce the temperature of the roasted and reduced matte to the temperature at which the volatilizer is worked . The volatilizing tower ...
... lower shelves are not heated by producer gas , but are cooled by a stream of water in order to reduce the temperature of the roasted and reduced matte to the temperature at which the volatilizer is worked . The volatilizing tower ...
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alternating current amount amperes apparatus arch Author bars Bevergern boiler Bremen Bremerhaven bridge C.E. VOL canal carried cent centre charge clinkering coal Company connected considerable construction copper cost County Surveyor cubic yards curve depth designed diameter dynamo effect ejectors Elbe electric electromotive force engineer erected experiments flue furnace gases girders heat Hopkinson increased Institution iron John Hopkinson kathode length light load locks locomotive machine magnetic Member Messrs metal miles millimetres Minutes of Proceedings motors nickel nickel carbonyl Nogat obtained Paper pillar pipe placed Plate port pressure Proceedings Inst rails Railway refuse repairs revolutions per minute river roads seam sewage side Sir John Fowler Sir William Anderson span square inch station steam steel subsidence surface Surveyor temperature thick tons traffic tunnel vertical Vistula volts weight Weser wire