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| AN INVESTIGATION OF CASSITERITE FLOTATION USING MIXED TOLYL ARSONIC ACID |
| Res. Gp. of Cassiterite Flotation; Changsha Institute of Mining and Metallurgy Research |
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Cite this article:
Res. Gp. of Cassiterite Flotation; Changsha Institute of Mining and Metallurgy Research. AN INVESTIGATION OF CASSITERITE FLOTATION USING MIXED TOLYL ARSONIC ACID. Acta Metall Sin, 1978, 14(1): 17-26.
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Abstract The capacity of tolyl arsonic acids for collecting cassiterite has been investigated. It is shown that mixed tolyl arsonic acid was much superior to either para- or ortho-isomer alone for cassiterite flotation. Mixing ratios between paraand ortho-tolyl arsonic acids ranging from 50:50 to 30:70 were effective with a peak value at 45:55 in which a maximum collecting capacity was obtained. The preparation of mixed tolyl arsonic acid was more convenient than that of paraisomer, a conventional collecting agent for cassiterite flotation. In the plantscale flotation of cassiterite slimes assaying from 0.6 to 0.7 percent Sn, tin concentrates with the grade of about 25.65％ were obtained, the total recovery being about 58.64％. Cassiterite flotation using mixed tolyl arsonic acid as collectors and sodium carbonyl methyl cellulose as despressing agents for calcite have already been put into industrial practice.
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Received: 18 January 1978
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[1] Topfer, E., Freiber. Forschungsh., [Reihe] A163 (1960) , 63．
[2] Anon, World Mining, 26 (1973) , No. 5, 43．
[3] Wottgen, E., Freiber. Forschungsh., [Reihe] A551 (1975) , 1． |
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