| http://www.w3.org/ns/prov#value | - The ammonia oxidation catalyst includes selective catalytic reductive zeolite sequentially impregnated with platinum and copper.. 11/27/1420140348732Operating method in hydrometallurgy of nickel oxide oreIt is an object to provide a method for producing magnesium oxide by which magnesium oxide being high in purity and low in impurity content can be produced simply and efficiently from a sulfuric a
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