Twelve Ammonium Hydrogen Reduction Method Molybdenum Powder Preparation Of Ultrafine
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- Category: Molybdenum knowledge
- Published on 14 August 2014
- Written by ling
- Hits: 336
Currently, the method of the preparation of ultrafine molybdenum powder are: evaporation state trioxide reduction, activation reduction and twelve Ammonium hydrogen reduction method. Below is a brief twelve Ammonium hydrogen reduction method.
Twelve Ammonium hydrogen reduction method is ammonium molybdate in the twelve nickel alloy boat, and placed in a tube furnace at 530 ℃ reduction with hydrogen, and then at 900 ℃ reduction with hydrogen, can be prepared by the specific surface area of 3.0 m2 / g or more of molybdenum powder, molybdenum powder such as particle size of about 900 nm. This method only process description, analysis mechanism not seen, its feasibility remains to be seen.
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