Friends familiar with ammonium molybdate products, please come in
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This post was last edited by Eguan Manying on 2014-8-4 at 18:50. I would like to ask how to treat the solution obtained from the pressure oxygen leaching of molybdenum concentrate in order to produce ammonium molybdate product. I originally planned to use extraction, but there’s no extractant available now. I want to produce some product on a preliminary basis; I’m not sure what to use for that. Anyone familiar with this field could please give some advice. Thank you. This post was last edited by yzhms on 2008-10-15 14:22]
This is similar to the process of producing ammonium paratungstate from tungsten ore: first, pressure alkali leaching is carried out, followed by initial impurity removal, then resin exchange (or extraction). Once the level of impurities reaches a certain PPM value, distillation is used for concentration and the crystallization conditions are controlled (which is the key to this technology), and finally, drying is done. It is recommended that the original poster look for Li Honggui’s book on Rare Metal Metallurgy or Hydrometallurgy, as it contains information on this topic. The original poster can give it a search on the forum.
This post was last edited by Eguan Manying on 2014-8-4 at 18:50. I know a bit about extraction, but if I don’t use extraction or resins, I don’t know what to do; I can’t find any information in the literature either. There’s only one method described involving acid precipitation, ammonia dissolution, purification, and secondary acid precipitation – it works, but there are no other process parameters provided. Ugh, my boss keeps giving me such difficult tasks.
This post was last edited by Eguan Manying on 2014-8-4 at 18:51. “Molybdenum Metallurgy” by Xiang Tiegeng, published by Central South University; an e-book version is also available! 7 RMB, but I didn’t buy it; I have the original book!
It seems to be acid hydrolysis—filtration—ammonia neutralization—evaporation—calcination—further acid hydrolysis—ammonia neutralization, and evaporation crystallization.
I had planned to find some good materials on this topic for the original poster over these days (mainly because I’m not currently working in tungsten-molybdenum metallurgy), but suddenly I got an urgent task, so I had no choice but to let the original poster learn on their own*. You can take a look at this textbook. http://bbs.hcbbs.com/viewthread. ... =1&extra=#pid939769 It is recommended that the original poster understand the general workflow of the process first, and then determine and explore the directions for process technology development in the laboratory; however, it seems that the technology related to tungsten and molybdenum metallurgy is quite complex. It comes down to patents; there’s no way around it ； The commonly used processes at that time were mainly ion exchange and extraction. In this regard, Central South University of Technology is quite good. :lol Last edited by lcylidong on 2008-6-4 10:18 ]
This post was last edited by Their crimes have finally come to light on 2014-8-4 at 18:52. Thank you to the friends above for their help; I’m about to start studying these materials, thanks.
This post was last edited by Eguan Manying on 2014-8-4 at 18:53. I wonder what’s in your molybdenum leachate?
It may be necessary to remove impurities such as copper and potassium. You can contact me at ptfll@126.com
Bro, I’ve sent you an email; please give me your guidance!
The pressurized leachate can be extracted using extraction or ion exchange; this technology is now well-established in China.