Research on Process Control of Nb_2O_5 Particle Size AITranslate
Abstract AITranslate
Nb（OH）5 was obtained from niobium liquid by fractional precipitation, and then Nb2O5product was prepared by washing, drying and calcination. Process control conditions ofNb2O5particle size were studied. The results show that the obtained Nb2O5 product has average particle size （D50） of 1-5 μm by the process as follows：bubbling 0.1 MPa ammonia into the feed liquid, neutralizing niobium liquid pH to 4,natural cooling for 16 h,quickly bubbling 0.3 MPa ammonia to complete reaction （precipitation end pH = 9） ,washing,drying at 240 ℃ for 6 h and calcination at 860 ℃. When niobium liquid concentration increa- ses to a certain range, the final Nb2O5product has increased average particle size. With increased calcination furnace temperature,the average particle size of the calcined Nb2O5 product increases.
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DOI：
Chinese Library Classification Number:TG146.416[金属学及工艺—金属材料]
Citation Information:
Nb（OH）5 was obtained from niobium liquid by fractional precipitation, and then Nb2O5product was prepared by washing, drying and calcination. Process control conditions ofNb2O5particle size were studied. The results show that the obtained Nb2O5 product has average particle size （D50） of 1-5 μm by the process as follows：bubbling 0.1 MPa ammonia into the feed liquid, neutralizing niobium liquid pH to 4,natural cooling for 16 h,quickly bubbling 0.3 MPa ammonia to complete reaction （precipitation end pH = 9） ,washing,drying at 240 ℃ for 6 h and calcination at 860 ℃. When niobium liquid concentration increa- ses to a certain range, the final Nb2O5product has increased average particle size. With increased calcination furnace temperature,the average particle size of the calcined Nb2O5 product increases.
quote
| GB/T 7714-2015 | [1] LIU Zi-xi, SHI Jin-gen. Research on Process Control of Nb_2O_5 Particle Size[J]. Rare Metals and Cemented Carbides, 2016(4): 11-13. |
| MLA | [1] LIU Zi-xi, and SHI Jin-gen. "Research on Process Control of Nb_2O_5 Particle Size." Rare Metals and Cemented Carbides, no. 4, 2016, pp. 11-13. |
| APA | [1] LIU Zi-xi, & SHI Jin-gen. (2016). Research on Process Control of Nb_2O_5 Particle Size. Rare Metals and Cemented Carbides(4), 11-13. |
| IEEE | [1] LIU Zi-xi and SHI Jin-gen, "Research on Process Control of Nb_2O_5 Particle Size," Rare Metals and Cemented Carbides, no. 4, pp. 11-13, 2016. keywords: {Nb2O5;niobium liquid;particle size;process control;fractional precipitation;calcination furnace temperature} |