Fine particle flotation for Florida dolomitic phosphate pebbles
- 出版日期：2002.
- 页数：97 p. :
- 第一责任说明：Zhengxing Gu.
- 分类号：a747
- ISBN：049383365X(ebk.) :
MARC全文
02h0025770 20111011164012.0 cr un||||||||| 111011s2002 xx ||||f|||d||||||||eng | AAI1410769 049383365X(ebk.) : CNY371.35 NGL NGL NGL a747 Gu, Zhengxing. Fine particle flotation for Florida dolomitic phosphate pebbles [electronic resource] / Zhengxing Gu. 2002. 97 p. : digital, PDF file. Source: Masters Abstracts International, Volume: 41-02, page: 0612. ; Chair: Felicia F. Peng. Thesis (M.S.Min.E.)--West Virginia University, 2002. A Florida dolomitic phosphate pebble sample was processed using a 1.2 liter stirrer-tank flotation cell and 2-in ID packed flotation column aiming at achieving a phosphate concentrate containing more than 30% P2O 5 and less than 1.0% MgO contents at high P2O5 recovery.;The characteristics of fatty acid collector, FA-12 and a newly developed PA-31 collector were evaluated for frothability and dolomite flotation rate. The evaluation results show that both reagents have high frothability, but PA-31 has much stronger frothability than FA-12, and higher selectivity in separating dolomite from phosphate mineral.;The mineralogical study indicates that the phosphate pebble sample needs to be ground to minus 150 μm (-100 mesh) for liberation of dolomite from phosphate. For the stirrer-tank cell, the composite phosphate concentrate has 31.66% P2O5 and 0.79% MgO at the overall P 2O5 recovery of 92%. For packed column flotation, the composite phosphate concentrate has 30% P2O5 and 0.96% MgO at the overall P2O5 recovery of 91%. Pebbles. ; Mineral industries. Electronic books. aeBook. aCN bNGL http://proquest.calis.edu.cn/umi/detail_usmark.jsp?searchword=pub_number%3DAAI1410769&singlesearch=no&channelid=%CF%B8%C0%C0&record=1 NGL Bs1040 rCNY371.35 ; h1 bs1108