含硼矿中硼的提取工艺技术现状及趋势

The extraction technology status of boron from boron-containing minerals and its prospect

  • 摘要: 硼化合物是重要的工业原料,从矿石中提取出的硼主要以硼酸和硼砂的形式存在.我国从 20 世纪 60 年代开始建立硼工业以来,先后采用以硫酸法为主生产硼酸、碳碱法为主生产硼砂的工艺技术.由于近年来硼资源品位的下降、环境问题的涌现以及产品纯度要求的提高,催生了不同提硼新方法的研究,希望能从改善硼矿中硼的浸出率、减少环境污染及提高产品纯度等方面着手逐步取代传统的提取工艺.论文首先介绍了硼酸和硼砂的应用,然后重点介绍了我国现有的提硼工艺技术.最后,介绍了提取硼的非传统工艺并分析了其发展前景.

     

    Abstract: As an important kind of industrial raw materials, boron compounds extracted from ore are mainly in the form of boric acid or borax. China has adopted sulfuric acid method to produce boric acid and soda -CO2 process to produce borax ever since the boron industry was established in the 1960 s. In recent years, with the decline of the grade of boron resource, the emergence of environment problems and the improvement of production purity, many new methods are being developed in hope to replace the traditional extraction technology gradually by improving boron ore leaching rate, reducing environment pollution and increasing the product p urity. The paper introduces the application of boric acid and borax, the existing extraction technology of the boron in china in particular, and the non-traditional extraction process of boron, as well as its development prospect.

     

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