2018-Sustainable Industrial Processing Summit
SIPS2018 Volume 7. Non-ferrous / Mineral Processing / Environmental Protection
| Editors: | F. Kongoli, Z. Wang, T. Okura, E. Souza, A. C. Silva |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2018 |
| Pages: | 256 pages |
| ISBN: | 978-1-987820-94-2 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
CD shopping page
Extraction of Rare-earth Metals from Waste Productions of Phosphoric Acid
Madali Naimanbayev1; Bagdaulet Kenzhaliyev2; Nina Lokhova1; Zhazira Baltabekova3;1CENTER OF EARTH SCIENCES, METALLURGY AND ORE BENEFICATION, Almaty, Kazakhstan; 2KAZAKH-BRITISH TECHNICAL UNIVERSITY, Almaty, Kazakhstan; 3CENTER OF EARTH SCIENCES, METALLURGY AND ORE BENEFICATION, Almaty, Kazakhstan, Kazakhstan;
Type of Paper: Regular
Id Paper: 349
Topic: 6
Abstract:
Recycling of industrial waste, provided that they have enough valuable elements, requires significantly less investment compared to ore processing. The most promising man-made raw material of rare earth elements is phosphogypsum - production wastes of phosphoric acid.
Until recently, works performed on dismantlement of phosphogypsum only concerned phosphogypsum processing from apatite concentrate. In this case, none of the known developments were tested for phosphogypsum produced on the basis of phosphorus, the chemical and mineralogical composition of which is markedly different from apatites. We studied phosphorites of the Karatau deposits (Kazakhstan).
Mineralogically, all the layers are composed of three main ingredients: phosphate, silica, and carbonate, which account for 92-96% of the weight composition of ores and rocks. Of the mineral impurities there are pyrite, iron hydroxides, gypsum, tremolite, fluorite. In a few grains, there are glauconite, feldspar, sericite, muscovite, biotite, miroksen, zircon and other accessory minerals.
In addition to the actual composition of phosphate in phosphate ores, there are low-temperature and high-temperature apatite. Silica is presented by chalcedony and quartz, and carbonate by calcite and dolomite.
The results of X-ray microanalysis showed point cluster of grains containing rare earth elements in samples of phosphate ore. Analysis of the grain showed that rare earth elements are in the form of phosphates and silicates, which, according to numerous studies in apatites, is not established.
In this regard, phosphogypsum, waste of production, is different in composition too. Therefore, transfer of techniques proposed in the methods for extracting rare earths from phosphogypsum after processing apatite, did not give the stated results and required a new approach to solving this problem. It should be noted that the phosphogypsum produced by processing the Karatau phosphorite contains medium group of rare earth elements by 2.6, and heavy group by 7.8 times more than the phosphogypsum produced by processing the Kola apatite.
Given the shortage of medium and heavy rare earth elements, research to develop ways to extract the lanthanides from phosphogypsum after processing phosphate rock is promising.
The study contains results of laboratory studies on the extraction of REE from phosphogypsum after Karatau phosphorite processing.
Keywords:
RareEarth; Phosphorite;Phosphogypsum;Leaching;Phosphoric acidReferences:
Radiological, chemical and morphological characterizations of phosphate rock and phosphogypsym from phosphoric acid factories in SW Spain / M. Renteria-Villalobos, I. Viogue, J. Mantero, G. Manjon // J. of Haz. Mat. 2010. - 181. Р. 193-203.M.A. Naimanbayev, N.G. Lokhova, Zh.A. Baltabekova, A.Zh. Dukembayeva. Thermodynamic assessment of conversion of phosphogypsum components in carbonates / / Integrated use of mineral resources. 2011. No.5. - P. 55-59
E.P. Lokshin. Increase in integral use of Khibiny apatite concentrate during its sulfuric acid processing. // Proceedings of the international meeting "New technologies of enrichment and integrated processing of hard natural and man-made materials" (read Plaksin's readings) Verkhnyaya Pyshma. 2011. - pp. 462-466
A.M. Abramov, Yu.B. Sobol, Zh.N. Galiyeva, R.S. Galiyev, O.R. Sabinina. Integrated technology of phosphogypsum processing to produce REM concentrate, binding gypsum and building products based on it. / / International Conference "Rare earth elements: geology, chemistry, production and application." - Moscow. 2012. - pp. 41-42
S.N. Lazorin, Ye.Ya. Stetsenko. Ammonium sulfate. - Moscow. 1973. p.256
V.M. Avdyukov, V.L. Tulenkov, L.M. Bezginova, V.V. Studentsov. Conversion preparation of lead sulfate products to metallurgical treatment / / Integrated use of mineral resources. - 1985. a�� No. 3. - pp. 24-26
Ye.I. Semenov. Mineralogy of rare earths. - Moscow. 1963. p.253
D.G. Gapurzhonov. Distribution of REE compounds in phosphogypsum / / Collected book of scientific papers of the IX Republican Studentsa�� Scientific and Technical Conference "New materials and their processing technologies" - Minsk. Unitary Enterprise "Research and Technology Park BNTU "Metolit". - 2008. p.198
A.K. Mustayev, Z.V. Strelkova, V.I. Shangin, V.G. Simonogvich. On isomorphism between some phosphate and sulfate compounds of lanthanides and calcium / / News of Academy of Science of the Kirghiz Soviet Socialist Republic - 1971. - pp. 54-59
V.N. Lebedev. Separation of rare earth elements at nitric acidulation of the Khibiny apatite concentrate / / Chemical Technology. - 2010. - T. 11. No. 4. - pp. 225-229
SJB Reed. Electron Microprobe Analysis and Scanning Electron Microscopy in Geology. Moscow. Technosphere. 2008. p.232
Complex nitric acid processing of phosphate raw materials. Edited by A.L. Goldinova, B.A. Kopyleyeva - Leningrad. Chemistry. 1982. p. 236
V.G. Kazakov, V.Kim, R.V. Kostyanets, V.F. Karmyshov V.S. Dmitriyev. Analysis of apatite ore concentrates from the Novopoltayevskoye ore field / / Integrated use of mineral resources. - 1986. No. 12. - pp. 19-23
V.V. Yakshin. Supramolecular extraction of rare earth elements/ Non-ferrous metals. 2012. No. 3. pp. 34-37