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24
DOI: http://dx.doi.org/10.20534/ESR-17-5.6-75-78
Salijanova Gulnarahan Kaxarovna, Senior teacher of Tashkent State Technical University E-mail: sohibtm@gmail.com Bekpulatov Javlon Mustafakulovich, Senior teacher of Tashkent State Technical University
SAMPLE ENRICHMENT RESULTS OF ORE DEPOSITS BY USING TRADITIONAL AND LOCAL REAGENT "PS" IN KALMAKYR AND SARICHEKU (UZBEKISTAN)
Abstract: The work presents factual results of study of material structure and enrichment of tests of ores of deposits in Kalmakyr and Saricheku.
As a result of the carried out researches the recommended circuits of enrichment of ores with the use of a combination of the traditional collector and "Program Facilities" are developed by 50% of a mix ksantogenats and the concentrates of higher quality are received.
Keywords: reagent, pyrite, chalcopyrite, molybdenite, magnetite, hematite, galenite, sphalerite potassium butyl xanthate, potassium isopropyl xanthate.
In the Republic of Uzbekistan at the concentrators in the ben-eficiation of various ores using traditional reagents manufactured abroad. Currently, it has become necessary to test local reagents and their introduction to the industry. Replacing conventional reagents new — import-reactants is important. Creating reagents manufactured using local raw materials will replace the traditional hard-re-actants and save a significant amount of currency.
Currently, the country has four plants in which floated copper — molybdenum ore — Copper enriching fabric (CEF), Zinc enriching fabric (ZEF) and gold ores — Angren gold enriching fabric (GEF) and GMP — 3 Government company "Navai Mining and Metallurgical Company". As the main agent — a collector of these enterprises used the BKK, as a foaming agent T — 80 or T — 92. In this paper we present the results of research on benefi-ciation of copper ore deposits Kalmakyr samples and Sarycheku traditional and local "PS" reagents. Ore samples are prepared according to standard procedure.
In order to study the material composition of ore samples taken samples for mineralogical analysis, the mean of the sample prepared for spectral, chemical and particle size analysis.
Chemical analysis of the sample of ore deposits Kalmakir defined in (%): SiO2-59,22; Fetotal - 6.17; Fe2O3-5.38; FeO - 3,1; Ti02-0.4; MnO - 0,14; Al2O°3-13,26; CaO - 1,68; MgO - 3,2; K2O - 4.74; Na2O - 0.32; Stotal - 0.62; Ssulf. - 0.56; SO3-0,15; CO2-2,75; P2O5-0.3; H2O - 0.98; Cu - 0.48; Pb - 0,04; Zn - 0,05; As -0.02; Mo - 0,006; Au - 0.6 g/t; Ag - 6,94 g/t. In addition, spectral analysis found: (in%): Ni - 0,003; Co - 0,001; V - 0,002; Cr - 0,03; Zr - 0,006; Ga - 0,002; Be <0,001.
The mineral composition of samples of ore is quite simple, the main ore minerals in them are pyrite, chalcopyrite and molybdenite. Also, there is a marked amount of magnetite, hematite, iron oxides and hydroxides (goethite, hydrogoethite, limonite). Among the accessory minerals are galena, sphalerite, faded ore, chalcoc-
ite, bornite and covellite. The main non-metallic mineral samples are quartz, feldspars, chlorite and sericite; secondary — biotite, hornblende, carbonates.
Chalcopyrite — major industry — valuable mineral ores investigated. Its content in the sample is 0.9%. Molybdenite is 0.01% of the ore. This mineral is unevenly distributed in shtufnom material and is confined to the non-metallic minerals [1].
Chalcocite — the content of its 0.05% of the ore. This mineral is closely associated with chalcopyrite. Covellite — content in the sample is 0.03%. Forms switching ON a few thin, hair-like veins in non-metal mass, evolves with chalcocite of chalcopyrite, pyrite less. The high content of the ore sample sericite, muscovite (8%) and chlorite (15%) of ore processing properties deteriorate.
Chemical analysis of the sample number 1 ore deposit Sarycheku defined in (%): SiO2- 56,3; Fetotal- 2,66; Fe2O3-1,52; FeO -1,98; TiO2- 0,43; MnO- 0,09; Al^-12,2; CaO) - 2,24; MgO -15,4; K2O - 5,84; N^O - 0,92; S^- 1,58; S„r - 1,53; SO3-0,12; CO2-0,88; P2O5-0,13; Cu- 0,36; Pb - 0,004; Zn - 0,008; As -0.01; Mo - 0,002; Au - 0.2 g/t..; Ag - 4,7. Semi-quantitative spectral analysis in high ore sample is defined (in%): Ni - 0,002; V - 0,004; Cr - 0,003; Zr - 0,004; Ga - 0,001; Be <0,06; Sr - 0,01; Be <0,001; I - 0,001.
Copper ore was floated by the schemes shown in Fig.1 and Fig.2. A copper minerals to float a mixture of potassium butyl xanthate (BKK) with potassium isopropyl xanthate (IPKK) in a ratio of 1: 1.
Driving flotation of copper ore.
In experiments designed mode shown in open and closed loop (on the principle of a continuous process), the results of which are shown in Table 1.
Results of experiments samples flotation ore deposits Kalmakyr using conventional reagents optimally.
Figure 1. Table 1.
Products Yield,% Content,%, Extraction,%
copper sulfur copper sulfur
Open loop
Concentrate 2,0 18,47 34,56 80,3 10,6
Industrial production 1 5,4 0,26 3,86 3,0 3,2
Industrial production 2 3,1 0,62 7,15 4,2 3,4
Industrial production 3 6,5 0,23 25,76 3,2 25,7
Tails 83 0,051 4,49 9,3 57,1
Ore 100,0 0,46 6,52 100,0 100,0
Closed cycle (according to the principle of a continuous process)
Concentrate 2,5 16,57 35,86 86,3 13,7
Tails 97,5 0,067 5,81 13,7 86,3
Ore 100 0,48 6,56 100,0 100,0
Using a local agent «PS» flotation tests were carried out in the open and closed loop. The consumption of a mixture ofXanthi-gena-tovreduced 50% with the addition of the reagent «PS» — 150 g/t, the other reagents unchanged [2]. The results of the experiments
are given in Table 2.
The experimental results of flotation samples of ore deposits Kalmakyr using a reagent of the «PS»
Table 2.
Products Yield,% Content,% Extraction,%
copper sulfur copper sulfur
1 2 3 4 5 6
Open loop
Concentrate 1,4 28,43 42,71 79,6 9,2
Industrial production 1 4,6 0,39 7,07 3,6 5,0
Industrial production 2 2,8 0,79 11,38 4,4 4,9
1 2 3 4 5 6
Industrial production 3 5,9 0,36 31,73 4,2 28,8
Tails 85,3 0,048 3,97 8,2 52,1
Ore 100,0 0,50 6,5 100,0 100,0
Closed cycle (according to the principle of a continuous process)
Concentrate 1,8 22,96 42,27 86,1 11,6
Tails 98,2 0,067 5,91 13,9 88,4
Ore 100,0 0,48 6,56 100,0 100,0
Comparing the results shown in Table. 1 and 2, it can be concluded that the indicators on the recovery of copper in the general embodiments similar reagent regime: in open loop extracting copper flotation concentrate is 79.6-80.3%, in a closed circuit 86.1-86.3%. The quality of the content of copper concentrates above the local agent «PS»: 28.43% vs. 18.47% copper in concentrate of open cycle and 22.96 against 16.57% closed. When the sample number 1 flotation of copper ore deposits Saricheku defined the following optimum mode using conventional flotation reagents grinding fineness,% cl. - 0.074 mm - 65; reagent consumption g/t: a grinding lime (CaO on) - 400; a primary flotation Na S - 40.
BKK + IPKK - 15; T - 80-20; the control of the fleet-tion Na2S - 8; BKK + IPKK + - 7.5; T - 80-10; before grinding rougher concentrate,% cl. - 0.074 mm - 98.0; flotation time, minutes: the main - 10; Control -cleaning-up 1-5cleaning-up - 4. In the developed operation conducted experiments in open and closed loop. The results are shown in Table. 3. If you use a local agent "SS" reagent consumption amounted collectors, g/t; the main "SS" - 100; BKK IPKK + - 7.5; the control BPC IPCC + - 3.5; remaining unchanged [3].
In the developed operation conducted experiments, the results of which are shown in Table 4.
The experimental results of sample number 1 flotation ore deposits Saricheku using conventional reagents optimally.
Table 3.
Products Yield,% Content,%, Extraction,%
copper sulfur copper sulfur
Open loop
Concentrate 1,8 17,56 15,02 83,2 16,9
Industrial production 1 5,7 0,19 1,18 2,9 4,2
Industrial production 2 3,2 0,51 1,9 4,3 3,8
Industrial production 3 6,8 0,16 6,87 2,8 29,2
Tails 82,5 0,031 0,89 6,8 45,9
Ore 100 0,38 1,6 100,0 100
Closed cycle (according to the principle of a continuous process)
Concentrate 2,1 15,29 15,12 89,2 20,1
Tails 97,9 0,039 1,29 10,8 79,9
Ore 100 0,36 1,58 100 100
The results of experiments flotation ore deposits of Sarycheku using local agent «PS» and 50% of the mixture xanthates.
Table 4.
Products Yield,% Content,%, Extraction,%
copper sulfur copper sulfur
Open loop
Concentrate 1,2 24,15 22,88 82,8 17,6
Industrial production 1 4,6 0,23 1,19 3,0 3,5
Industrial production 2 4,3 0,37 1,34 4,5 3,7
Industrial production 3 5,9 0,18 6,93 3,0 26,2
Tails 84,0 0,027 0,91 6,7 49,0
Ore 100,0 0,35 1,56 100,0 100,0
Closed cycle (according to the principle of a continuous process)
Concentrate 1,5 21,6 24,65 90,0 23,4
Tails 98,5 0,036 1,23 10,0 76,6
Ore 100,0 0,36 1,58 100,0 100,0
Comparing the results of the experiments are listed in Table. 3 and 4, it can be assumed that the figures for the extraction of copper is almost identical, but the quality concentrate higher in experiments with «PS».
The studies developed recommended flotation circuit samples and ores Kalmakyr and Sarycheku using a combination of traditional collector and «SS» in saving the BPC + IPCC at 50% and obtained flotation concentrate of higher quality.
References:
1. Akhmedov H., et al. The use of new flotation reagents in the beneficiation of copper - molybdenum ore deposit Kalmakyr. Proceedings of the Republican Scientific - Technical Seminar: Problems of mineral processing in Uzbekistan. - Tashkent, - 2005.
2. Akhmedov H., Popov E. L. et al. Comparative tests of new reagents in the local semi-conditions. Mining Bulletin of Uzbekistan, -No. 39, - 2009.
3. Bekpulatov J. M., Akhmedov H., Matkarimov S. T. Studying material compositions and leaching methodic trial ores deposit of Beshkuduk (Uzbekistan). Journal of European Science Review. - No. 1-2, - 2017, - 208-211 p.
