Search academic texts

Information × Registration Number 0211U006834, 0110U005124 , R & D reports Title Experimental and industrial experiment works and scientific and methodic aiming at the hydrometallurgical treatment on the representative sample of the Novokostyantynivs'koeh deposit, development on the thickening of ore pulp to specify the characteristics of the equipment of the scheme of high-productive thickening and specify the basis data for the projection of processing plant. popup.stage_title Head Pil'chik Oleksandr Volodymyrowch, Registration Date 13-04-2011 Organization Eastern-mining&processing integrated work popup.description2 Research and Development Work (R&D work) report: 162 p., 11 fig., 32 Tables, 12 sources. The object of this research is the uranium ore of the Novokonstantinovskoeh deposit. The aim of this research is development of basis data for the design of the streamline production of uranium ore processing. Research methods are mineralogical and chemical analysis. Comparative analysis of the ores of the Novokonstantinovskoeh deposit with the ores of the Vatutinskoeh and the Michurinskoeh deposits was conducted on the base of which the conclusions about the possibility of sulfuric acid leaching of uranium from the ores of the Novokonstantinovskoeh deposit were made. For the ores of the Novokonstantinovskoeh deposit was proposed a flowsheet including radiometric sorting, coarse crushing, screening with the work up of the classes (- 5 mm and + 25 mm, -200 mm), which are flow at the heap leaching and radiometric separation of narrow size classes. The data of test of the efficacy of the ore leaching flowsheet on one-stage (direct) pachuc variant and autoclave recovery of uranium were received. The results of laboratory testing of optimal technology of two-stage leaching after the separation of raw materials to "sand" and "slime" are shown. For two-stage flowsheet the necessity of entering of the oxidizer in the first or second stage at the different sulfuric acid consumption was estimated, and also the kinetics of leaching was researched. The basic factors of thickening both all mass of raw material both its slime part. The necessity of addition of the flocculants to improve the ability slime pulp thickening was shown. An acceptability of using of the heap leaching relating to the middling products of different size was studied in laboratory conditions too. The laboratory studies of filtration process of leached sulfuric acid pulp for selection of the band filters. The behavior of silicon in the process of sorption of uranium from the pulps which were leached in pachuc regimes was studied and the methods of desiliconization of ionite (ion exchange material) were tested too. The optimum parameters of the sorption-desorption processes required for the issuance of the initial data for the design were determined. Optimization of parameters of the precipitation of the chemical concentrates as diuranate sodium and ammonium were provided. Optimal composition choice of the solutions preferred for precipitation most of all was made. Check of established improvements for the such operation as screening, crushing, grinding, classification, radiometric enrichment, heap leaching, thickening pulp, pachuc leaching of sands and slimes, sorption of uranium was made in this R&D work. R & D results are not implemented. Sphere of application is the mining and primary processing of uranium ores. URANIUM, GRINDING, THICHENING, SULFURIC ACID LEACHING, HEAP LEACHING, RECOVERY OF URANIUM, DIVISION PULP, SORPTION, ION EXCHANGER, MECHANICAL PROPERTIES OF ION EXCHANGER, DESORPTION, ACCUMULATION OF SILICON, REFINING, CHEMICAL CONCENTRATES. Conditions of obtainment of this report: under agreement. Gor'ky St., 180, Kiev, 03680, UkrІНТЕІ (Ukrainian Institute for Scientific, Technical and Economic Information). Product Description popup.authors Іщенко Лариса Євгеніївна Беспояско Сергій Володимирович Велика Катерина Олексіївна Годісь Роман Зіновійович Давидова Марина Борисівна Дороненко Наталя Борисівна Кіслова Неллі Олександрівнна Карачов Ігор Юрійович Основенко Тетяна Вікторівна П'ятак Галина Олександрівна Пільчик Оксана Іванівна Ситникова Ксенія Валеріївна Чуйко Тетяна Вадимівна Чумак Ігор Вікторович popup.nrat_date 2020-04-02 Close