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Classification of hydraulic overflow ultrafine α-Al2O3 powder in the application of


Small particles can be seen that the phenomenon has been very weak. At the same time from the licoverflowingseparationprocesson-A1203powderhaeenstudiedinthispaper. Bystuding, somefactorson in Figure 9 and Figure 6 shows the comparison. Figure 9 narrow peak shape. That said separati. npr. cessinfluencedtheresuIt, suchasdisperser, dispersants and out through the joint action of ultrasound. Not only eliminate the small particles supersoniceta1. smallparticlephenomenonwillweakenfor phenomenon. But also makes the grade distribution is more concentrated after the particles. A ● .... ...''-. _ Figure 9, a common effect of dispersant and ultrasonic grading Fig9Influenceofdisperserandsupersonictohydraulicseparation4 conclusion after the hydraulic grade is a better grade ultra-A1, O powder disperser, butitwidensizedistribution. Coactionofdis-perserandsupersonicnotonlyweakenmallparticlephenomenon, butalsonarrowthesizedistributionKeywords: hydraulicseparation,[link widoczny dla zalogowanych], smallparticlephe-nomenon, hydraulicoverflowingseparation,[link widoczny dla zalogowanych],-alumina reference 【1】 Zhang Lide, Mou. U.S. nano-materials and nano-structures. Beijing: Science Press, 20012l ZENG, Hu Yongping, Yang Yi, Ren Shouzheng and so on. Studies of mineral processing particles. Xuzhou: Method in the grading process t small particles, dispersant, such as ultrasound will China University of Mining Press, 2 () (】 1. The result of dispersion have been affected. 【3l Yuan Yuyan, Baihua Ping, LI Feng-Sheng. laser radiation The principle of open in the ultra-1). Mainly from the small particle size of the phenomenon of adsorption between the particles. Small, .... . . ... Powder pension size analysis should be chip j. J MATERIAL SCIENCE soil processes, 2001, V24 (5): high energy particles. Easily adsorbed on the formation of large particles leave large particles. In the analysis. As the role of powerful ultrasound. Will be re-dispersed to small particles in the analysis of the phenomenon of small particles on the show 2) the classification was added dispersant can effectively eliminate small pieces 【4】 Teng Fei,[link widoczny dla zalogowanych], Ning Guiling, situ and bear trapped laser light scattering test Hing size distribution of ultrafine particles. Light open shot, 2004,[link widoczny dla zalogowanych],16 (2) :172-176 【51 Huang Zhen, Zhang ship. QUALITY AND Xie Hua. Laser particle size analysis of the phenomenon t Yizheng CWS, but also to adversely affect the classification of t distributed application instrumentation red state 2 () (】 4,5:38-4. Agent makes grain particles big change so that the particle size distribution after hydraulic classification wider: About: 3). Ultrasound and the combined effect of dispersing agent can not only eliminate the phenomenon of small particles and water makes the results more accurate classification. Appliedstudyofhydraulicoverflowingclassifyonsuperfine0 【. AI203powderChenWei1. WangQingweiChenYanLiJinfeng2 (1.CenterSouthUniversity, ChangshaHunan, 410083ZhengzhouResearchInstituteofChalco, ZhengzhouHenan450041) Chen Wei, male, Han nationality, born in May 1972, Henan Province, Xinxiang County, engineers, PhD, is mainly engaged in chemical research and development of alumina. Address: Zhengzhou, Henan Jiyuan Road 82 ShangXi blocks, the Chinese Research Institute of Chalco, Zhengzhou Institute of specialty alumina. E-mail: chenw @ film. com. cnTel :0371-68918396Fax: 037l a 6892339641 ●

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