从石煤钒矿酸浸液中制取白炭黑的工艺研究

Process Research on Preparation of White Carbon Black from the Acid Leaching Solution of Stone Coal Vanadium Ore

Mineral Resource Devvelopment Institute of technology, Changsha Research Institute of Mining and Metallurgy CO., Ltd, Changsha, Hunan, China

摘要: 针对石煤钒矿酸浸液中硅含量高的特点,采用非离子型絮凝剂将溶液中的SiO2进行絮凝沉淀,同时对溶液进行净化,得到除硅后的含钒酸性溶液,过程中钒损失率<1%。然后将得到的SiO₂沉淀进行洗涤、干燥、煅烧,可制备出SiO₂含量为94.32%、比表面积为265m2/g、吸油值为2.62ml/g的白炭黑产品,产品主要性能指标符合HG/T 3061-2009沉淀水合二氧化硅的技术要求。
- 石煤钒矿 /
- 酸浸液 /
- 白炭黑 /
- 二氧化硅
Abstract: According to the characteristics of high silicon content in acid leaching solution of stone coal containing vanadium, the silicon was removed by flocculation and sedimentation through the use of non-ionic flocculant, in the process, vanadium loss rate was less than 1%. Then the white carbon black was prepared by a process consisting of washing, drying and calcining. The SiO₂ content in the product is 94.32%, the specific surface area is 265m2/g, oil absorption value is 2.62ml/g, the main performance indicators accord with national standard of HG/T 3061-2009.
- stone coal vanadium ore /
- acid leaching solution /
- white carbon black /
- silicon dioxide

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