Technology Innovation

4.1 Mining and Metallurgical Engineering
Xuqiu Sheng research with a variety of emulsifiers, such as polypropylene glycol and other emulsifying agents YC results show that, with the emulsifier, molybdenite surface potential was decreased (negative), molybdenum rougher recoveries tend to grow.  The study is still ongoing.  Xuqiu Sheng also studied with the "waste oil" as a molybdenite flotation possibilities.
Tongji YINGXIONG use of chemical treatment astringent persimmon selective absorption of liquid waste containing Mo-Re Molybdenum crucible. Astringent persimmon chemically crosslinked with formaldehyde become a new kind of gel, called APF gel. He studied the APF gel on hexavalent molybdenum and heptavalent rhenium absorption behavior, so that Mo, Re and other coexisting metal separation.  Study found that in hydrochloric acid system, APF gel can effectively absorb the Mo (VI), while the rhenium and calcium present almost completely inert. When the hydrochloric acid concentration is higher than  1 mol / L when,  APF gel on iron, copper, lead, nickel, magnesium and zinc little affinity. Gel shows significant absorption only molybdenum nature, with high absorption capacity, the absorption capacity of 1.05 mol / kg, absorption behavior in accordance with Langmuir (Langmuir) adsorption Law. Endothermic process follows the pseudo-second-order kinetics.Study confirmed, APF gel with Mo (VI) excellent absorption properties.
Khachatu in a metal zinc, magnesium ammonium molybdate tetrahydrate reduction mixture of molybdenum powder reaction conditions.  Experimental results show that the mixed metal reduction method is a preferred method of preparation of molybdenum powder, can better control the reducing conditions and product properties. This paper studies the key parameters such as composition of the mixture, the combustion temperature and inert gas pressure and other parameters, and using XRD / SEM / FSμmEM / DTA, microanalysis, quenching to study the reduction mechanism. This is the first time the molybdenum powder (0.1 ~ 1 μm) directly from a synthesis of ammonium molybdate tetrahydrate exploration.  Compared with H  2 reduction, energy savings of the Act, there are potential applications