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从苏打—碱溶液中沉淀碲:为了从苏打—碱溶液中回收碲,提出了一种用二价铁盐把四价和六价碲还原成元素碲的方法。用试验室条件下配制的人造溶液以及浸出苏打碲渣所得到的工业溶液作了试验。每次试验用的人造溶液量为0.5升,而工业溶液量为5.0升。还原剂是采用浓度为200-300克/升的硫酸亚铁溶液,将其搅拌,加入含碲溶液中。
Precipitation of Tellurium from Soda-Alkali Solutions: In order to recover tellurium from soda-alkali solutions, a method for the reduction of tetravalent and hexavalent tellurium to elemental tellurium with divalent iron salts has been proposed. Industrial solutions were prepared from artificial solutions prepared under laboratory conditions and from the leaching of soda residue from soda. The amount of artificial solution used for each test was 0.5 liters, whereas the amount of industrial solution was 5.0 liters. Reducing agent is the use of a concentration of 200-300 g / l of ferrous sulfate solution, which was stirred, added to tellurium-containing solution.