The Ministry of Science and Technology of Inner Mongolia Autonomous Region issued a report a few days ago that four national science and technology support projects related to the utilization of high-alumina fly ash were approved by the Ministry of Science and Technology of the Inner Mongolia Autonomous Region in Hohhot. The successful completion of these four national-level issues has greatly enhanced the technological level of the utilization of bulk industrial waste in the Inner Mongolia Autonomous Region.
The topics involved in this acceptance include: Optimization of alumina extraction from high-alumina fly ash and integration of multi-generation technologies and demonstration of large-scale industrialization undertaken by Inner Mongolia Datang International Renewable Resources Development Co., Ltd., high aluminum powder undertaken by Inner Mongolia University of Technology Key technologies and industrial demonstrations for the preparation of new chemical fillers from deashing products of coal ash, key technologies and demonstrations for the production of cement using calcium-silica slag and desulfurized gypsum, and high aluminum powders undertaken by the Institute of Process Engineering, Chinese Academy of Sciences Key technologies and demonstrations of enrichment and extraction of thorium in coal ash and high value of products.
The expert group visited the Detroit Industrial Park in Inner Mongolia to inspect the demonstration line and the experimental site. After the evaluation, it was concluded that after four years of research, the four topics centered on the utilization of high-alumina fly ash, from the extraction of alumina and calcium silicate. The industry chain of comprehensive utilization of fly ash was extended from different perspectives, including paper making, recycling of metal thorium, and calcium-silicate slag as cement materials, and a number of high-alumina fly ash extraction alumina multi-product core technologies were broken through, and some of these technologies reached international advanced levels. Most of the results achieved have been applied to production practices, and a new type of circular economy industry development model for coal—electricity—non-ferrous metallurgy—chemical—papermaking—building materials has been formed.
Among them, the high-alumina fly ash extraction of alumina technology project has built the first domestic and foreign production of 200,000 tons of alumina production and production demonstration line, and established China's independent technical index system and technology for the extraction of alumina from fly ash. Technical package; High-alumina fly ash desilicated product for the preparation of new chemical fillers. Development of porous calcium silicate for offset printing paper / copy paper production process technology, production of copy paper product quality can reach offset printing paper QB/T1012-2010, respectively And the copy paper GB/T24988-2010 standard; high aluminum fly ash in the enrichment, extraction of the subject to build an annual output of 20 kg metal antimony pilot line, the purity of metal antimony products reached 99.99%. The project also conducted optimization experiments and pilot tests of calcium silicate slag firing cement clinker, completed the research and evaluation of calcium-silica slag as cement admixtures, and used calcium silicate slag, desulfurized gypsum, fly ash and other wastes to produce light weight. Insulation wall materials related experiments have the conditions for further industrialization.
The topics involved in this acceptance include: Optimization of alumina extraction from high-alumina fly ash and integration of multi-generation technologies and demonstration of large-scale industrialization undertaken by Inner Mongolia Datang International Renewable Resources Development Co., Ltd., high aluminum powder undertaken by Inner Mongolia University of Technology Key technologies and industrial demonstrations for the preparation of new chemical fillers from deashing products of coal ash, key technologies and demonstrations for the production of cement using calcium-silica slag and desulfurized gypsum, and high aluminum powders undertaken by the Institute of Process Engineering, Chinese Academy of Sciences Key technologies and demonstrations of enrichment and extraction of thorium in coal ash and high value of products.
The expert group visited the Detroit Industrial Park in Inner Mongolia to inspect the demonstration line and the experimental site. After the evaluation, it was concluded that after four years of research, the four topics centered on the utilization of high-alumina fly ash, from the extraction of alumina and calcium silicate. The industry chain of comprehensive utilization of fly ash was extended from different perspectives, including paper making, recycling of metal thorium, and calcium-silicate slag as cement materials, and a number of high-alumina fly ash extraction alumina multi-product core technologies were broken through, and some of these technologies reached international advanced levels. Most of the results achieved have been applied to production practices, and a new type of circular economy industry development model for coal—electricity—non-ferrous metallurgy—chemical—papermaking—building materials has been formed.
Among them, the high-alumina fly ash extraction of alumina technology project has built the first domestic and foreign production of 200,000 tons of alumina production and production demonstration line, and established China's independent technical index system and technology for the extraction of alumina from fly ash. Technical package; High-alumina fly ash desilicated product for the preparation of new chemical fillers. Development of porous calcium silicate for offset printing paper / copy paper production process technology, production of copy paper product quality can reach offset printing paper QB/T1012-2010, respectively And the copy paper GB/T24988-2010 standard; high aluminum fly ash in the enrichment, extraction of the subject to build an annual output of 20 kg metal antimony pilot line, the purity of metal antimony products reached 99.99%. The project also conducted optimization experiments and pilot tests of calcium silicate slag firing cement clinker, completed the research and evaluation of calcium-silica slag as cement admixtures, and used calcium silicate slag, desulfurized gypsum, fly ash and other wastes to produce light weight. Insulation wall materials related experiments have the conditions for further industrialization.
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