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2005
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Invention
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Lifter for rotary heat exchanger, rotary heat exchanger with the lifter, and heat treatment metho... |
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Invention
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Method of recovering nickel and cobalt. In a solvent extraction step, the nickel and cobalt conta... |
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Invention
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Method of recovering nickel or cobalt. A method of recovering nickel or cobalt which comprises: a... |
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Invention
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Method for recovering nickel or cobalt. In a step b (a leaching step), a slurried ore (104) is le... |
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Invention
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Leaching method and recovering method for nickel or cobalt. In a step b (a leaching step), sulfur... |
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2004
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Invention
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Combustion chamber for revolving flow type combustion furnace. ⏧PROBLEMS] To provide a combu... |
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1998
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Invention
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Method of producing metal powder by atomizing and apparatus therefor. A method of producing metal... |
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1996
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Invention
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Process for recovering rare earth metal from oxide ore by concentration and separation. A process... |
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1993
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Invention
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Method of removing particles having a size less than 10 .mu.m from an aqueous solution. Provided ... |
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1992
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Invention
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Method of making sintered metallic body and said body obtained through said method. A method of m... |
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Invention
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Method for treating aqueous solution containing fine particles. A method for separating fine part... |
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1984
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Invention
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Process for producing low p chromium-containing steel. A process for producing a low P chromium-c... |
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1981
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Invention
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Method for producing ferro-nickel shots. A method for producing ferro-nickel shots which comprise... |
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1979
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Invention
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Direct method for production of high-grade, high-purity ferromanganese. A direct method for the p... |
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1977
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Invention
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Method for recovering heat from molten slag and an apparatus therefor. Molten slag discharged fro... |
