Gold chute, Ross chute chute export manufacturers, Longjiang - Qingzhou Guancheng Heavy Industry Machinery Co., Ltd.
铬矿有什么特性
What are the properties of chrome ore
内生作用条件下铬一般呈三价。六次酸位的Cr3+和Al3+Fe3+的离子半径相接近，故它们之间可以呈广泛的类质同象。此外，可与铬类质同象代替的元素还有Mn、Mg、Ni、Co、Zn等，所以在镁铁硅酸盐矿物和副矿物中有铬的广泛分布。在表生带强烈氧化条件下（碱性介质），Cr3+氧化成Cr6+形式的铬酸根离子，使不活动的铬离子变成易溶的铬阴离子发生迁移。遇极化性很强的离子（如Cu、Pb等），则形成难溶的铬酸性矿物。在自然界中已发现的含铬矿物约有50余种，分别属于氧化物类、铬酸盐类和硅酸盐类。此外还有少数氢氧化物、碘酸盐、氮化物和硫化物。其中氮化铬和硫化铬矿物只见于陨石中。
Endogenous effect under general is trivalent chromium. The six bit Cr3+ and Al3+Fe3+ acid ionic radius is close, so they can be a wide range of isomorphism. In addition, can replace the same as with chromium qualitative elements are Mn, Mg, Ni, Co, Zn etc, are widely distributed so there is a chromium in magnesium iron silicate minerals and accessory minerals in the. In the supergene zone strongly oxidizing conditions (alkaline medium), Cr3+ is oxidized to chromate Cr6+ form, make the chrome ion activities into soluble chromium anion migration. In case of strong ion polarization (such as Cu, Pb etc.), then the formation of insoluble chromium acid mineral. Have been found in the nature of chromium containing mineral are about 50 species, respectively, belonging to the oxide, chromates and silicate. In addition there are a few hydroxide, iodate, nitride and sulfide. The chromium nitride and chromium sulfide minerals are found only in meteorites.
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