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Sulfuric acid cesium cesium garnet - garnet cesium salt extraction of cesium and semi-industrial experiment Process Overview

Cesium sulfate products. Cesium sulfate decomposition, the process of grant dollars by the amount of spoil containing cesium cesium yield of 98 to 99. Products such as cesium sulfate composition of Table 4. Cast mine to the output from the cesium sulfate,[link widoczny dla zalogowanych], cesium yield was 92. Table 4 Sulfur plot cesium composition. Chemical composition (\reported at home and abroad garnet cesium cesium process, most of cesium chloride as the final product output. However, wider application of current domestic and foreign, to fling a large amount of cesium chloride, cesium salt is not, nor is it in cesium sulfate. Yat two kinds of cesium salt rejection for the production of other major cesium salt or cesium salt of basic raw materials of high purity. Therefore, cesium salt, the production of scale transformation is a very important part. experiment, we first adopted the cesium salt ion exchange technology transfer trampling, successfully with the resin into the cesium nitrate cesium sulfate, cesium chloride. the process of the resin with the usual mechanism of ion exchange and resin regeneration are basically the same. The key is to select the special resin,[link widoczny dla zalogowanych], liquid concentration, eluent concentration,[link widoczny dla zalogowanych], and washing all kinds of solutions water flow rate conditions. cesium salt transformation process, the choice of different tree refers to the regeneration agent to obtain cesium salt of different experimental technology of cesium chloride in the final products, semi-industrial experiment, the final product is cesium nitrate. experiment selected special resin, in the appropriate conditions,[link widoczny dla zalogowanych], the cesium adsorption rate and desorption rate remained balanced,[link widoczny dla zalogowanych], 98.5 to 99. the process of cesium yield 98 or more.. desorption solution precipitated by evaporation of crude cesium nitrate, and then by post-processing can be direct output of the special grade purity cesium nitrate 99.5. the final product nitrate cesium indicators are shown in Table 5. Xinjiang Nonferrous Metals 2 31 Table 5 composed of cesium nitrate product index l impurities CsNO3 sound dry operation - weight loss of Ia-target tone ■ sOtlC, sl № IFe 『NmlPb tone ■ () ≥ 99.5 <m5I ~ IXl ~-S ~ lXlff {I6.3 × 1l3 × 1l1 × 1I <2 × 1l ~ 2X10-j cesium cesium garnet process of sulfuric acid cesium yields of three products (ore containing 18 to 18.9 Cs): Cs Cesium alum garnet a lead (purity ≥ 98%) yield of 95.4 Cs; cesium garnet - cesium sulfate (purity ≥ 0 Cool

cesium yield 92; cesium garnet - cesium nitrate ● (purity ≥ 99.5) cesium yield 89. Fourth, waste treatment method using cesium cesium garnet during the \transition in the evaporation of cesium eluate generated when the acid gas. cesium alum precipitate the mother liquor containing free sulfuric acid, must find and to use or in neutral before discharge. Cs eluate evaporation processes of acid gas, can be thrown alkali absorption or emission by more than one 2Om exhaust air. acid leaching residue containing about 1 free acid, sulfuric acid leaching of cesium is neutral or logo of the alkaline residue. Both are dismay residue of lead, arsenic, mercury, cadmium, six Cr. According to national industrial \Law cesium has the following advantages: 1. full advantage of the aluminum ore bauxite formation of cesium aluminum, acid leaching process does not plus any additives I2. the process yield of cesium antimony trichloride method than hydrochloric acid to improve 1O} 3. cesium salt decreased costs, economic efficiency I4. lead easily purified cesium alum, the process can be directly output from 98 to 99.5 or even several of pure cesium salt} 5. would be Cesium ion exchange technology for the new technology in transition , using the same set of device can output a variety of cesium salts, respectively, and the process amenable to automation} 6. As the high boiling point hydrochloric acid than the boiling point, so that the operating environment and the surrounding environment has been greatly improved. evaporation and concentration process that produced sour gas, but it is concentration, and thus easy to collect, control. should be recognized that sulfuric acid cesium garnet is not perfect cesium method. but it should certainly garnet cesium cesium sulfate process of law, and successfully completed an initial annual output of 8 ~ 1Ot cesium salt small-scale pilot line will undoubtedly cesium salt of industrial development, promotion and application of cesium salt, cesium salt, a significant impact on the improvement of the price. References chromium Qian Li. Foreign lithium rubidium cesium industry. China Industry Press, 1965, the Ministry of Metallurgy Metals Science and Technology Information Network. Foreign lithium rubidium cesium metallurgy, 1980John · D · S · Bulletin566 & iv DfMines.1956CanadianChemicalProcessing-September, 1962 (9)

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