Beneficiation studies with a pyrite-pyrrhotite sample from Saladipura, Rajasthan

Prasada Rao, P D and Satyanarayana, C and Vijayaraghavan, K and Mathur, G P (1972) Beneficiation studies with a pyrite-pyrrhotite sample from Saladipura, Rajasthan. NML Technical Journal, 14 (2). pp. 56-59.

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A 100 ton pyrite-pyrrhotite sample was received by NML from M/s Pyrites, Phophates and Chemicals Ltd., with a request to study the feasibility of producing a pyrite-pyrrhotite assayed 39% S, to be used in the fertiliser plant. The sample, as received, assayed 23% S with coarse grained pyrite and pyrrhotite were 93%-200 mesh (TSS) grind with 0.24 kg/tonne of potassium ethyl xanthate, 0.045 kg/tonne of pine oil and 3.0 kg/tonne of H2SO4 (pH 5.2-5.7). Under these conditions, concentrate obtained was 53.3% by weight assaying 40.5% S with 91.8% S recovery. Attempts to preconcentrate the ore by gravity methods did not yield encouraging results. Pilot plant tests were conducted under the optimum conditions and also studying the variables. Test results indicated that 85%-200 mesh (TSS) grind with 0.22 kg/tonne of KEX, 0.03 kg/tonne of pine oil and 3.0 kg/tonne of sulphuric acid along with reclamated water were the optimum conditions under which a concentrate weighing 48.5% and assaying 41.5% S with a recovery of 94.9% was produced. (P.D. Prasada Rao, C. Satyanarayana, K. Vijayaraghavan and G. P. Mathur, National Metallurgical Laboratory)

Item Type:Article
Official URL/DOI:http://library/articleDetails.jsp?recordid=282
Uncontrolled Keywords:Pine oil; Pilot plant tests; Potassium ethyl xanthate; Pyrite-pyrrhotite assayed; Fertiliser plant
Divisions:Metal Extraction and Forming
Mineral Processing
ID Code:2111
Deposited By:Dr. A K Sahu
Deposited On:16 Dec 2010 11:03
Last Modified:08 Nov 2012 15:39
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