Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of porous ceramic composite wave-absorbing material loaded with magnetic metal cobalt or nickel
The invention provides a preparation method of a porous ceramic composite wave-absorbing material loaded with magnetic metal cobalt or nickel, and belongs to the technical field of microwave absorbingmaterials. According to the technical scheme, the method comprises the steps that 1, firstly, subjecting coal gasification furnace slag to drying, ball milling and screening treatment; obtaining coalgasification furnace slag powder, performing acid washing, calcining and activating treatment to obtain a slag carrier with a high specific variable area; and then introducing a precursor solution containing Co < 2 + > or Ni < 2 + > into pore channels of the slag carrier by adopting a double-solvent isopyknic impregnation process, and then carrying out in-situ carbon thermal reduction treatment to obtain the magnetic composite microwave absorbing material loaded with elemental cobalt or elemental nickel. According to the method, the solid waste coal gasification furnace slag in the coal chemical industry is used as the raw material for preparing the composite wave-absorbing material, effective recycling of the coal gasification furnace slag is achieved, meanwhile, the production cost of the microwave absorbing material can be reduced, and waste is turned into wealth.
本发明提供了负载磁性金属钴或镍的多孔陶瓷复合吸波材料制备方法，属于微波吸收材料技术领域。技术方案为：首先对煤气化炉渣进行烘干、球磨以及筛分处理，得到煤气化炉渣粉体，通过酸洗、煅烧、活化处理得到具有高比变面积的炉渣载体，接着采取双溶剂等体积浸渍工艺经将含Co2+或者Ni2+的前驱体溶液引入到炉渣载体孔道内部，然后经原位碳热还原处理获得负载单质钴或者单质镍的磁性复合微波吸收材料。本发明方法以煤化工产业的固体废弃物煤气化炉渣为原料制备复合吸波材料，实现了煤气化炉渣的有效回收利用，同时可以降低微波吸收材料的生产成本，变废为宝。
Preparation method of porous ceramic composite wave-absorbing material loaded with magnetic metal cobalt or nickel
The invention provides a preparation method of a porous ceramic composite wave-absorbing material loaded with magnetic metal cobalt or nickel, and belongs to the technical field of microwave absorbingmaterials. According to the technical scheme, the method comprises the steps that 1, firstly, subjecting coal gasification furnace slag to drying, ball milling and screening treatment; obtaining coalgasification furnace slag powder, performing acid washing, calcining and activating treatment to obtain a slag carrier with a high specific variable area; and then introducing a precursor solution containing Co < 2 + > or Ni < 2 + > into pore channels of the slag carrier by adopting a double-solvent isopyknic impregnation process, and then carrying out in-situ carbon thermal reduction treatment to obtain the magnetic composite microwave absorbing material loaded with elemental cobalt or elemental nickel. According to the method, the solid waste coal gasification furnace slag in the coal chemical industry is used as the raw material for preparing the composite wave-absorbing material, effective recycling of the coal gasification furnace slag is achieved, meanwhile, the production cost of the microwave absorbing material can be reduced, and waste is turned into wealth.
本发明提供了负载磁性金属钴或镍的多孔陶瓷复合吸波材料制备方法，属于微波吸收材料技术领域。技术方案为：首先对煤气化炉渣进行烘干、球磨以及筛分处理，得到煤气化炉渣粉体，通过酸洗、煅烧、活化处理得到具有高比变面积的炉渣载体，接着采取双溶剂等体积浸渍工艺经将含Co2+或者Ni2+的前驱体溶液引入到炉渣载体孔道内部，然后经原位碳热还原处理获得负载单质钴或者单质镍的磁性复合微波吸收材料。本发明方法以煤化工产业的固体废弃物煤气化炉渣为原料制备复合吸波材料，实现了煤气化炉渣的有效回收利用，同时可以降低微波吸收材料的生产成本，变废为宝。
Preparation method of porous ceramic composite wave-absorbing material loaded with magnetic metal cobalt or nickel
负载磁性金属钴或镍的多孔陶瓷复合吸波材料制备方法
LI GUOMIN (Autor:in) / MAO LUTAO (Autor:in) / LIANG LIPING (Autor:in) / ZHOU YI (Autor:in) / QIN MEI (Autor:in) / TIAN YUMING (Autor:in) / ZHANG KEWEI (Autor:in) / CHAI YUESHENG (Autor:in)
23.10.2020
Patent
Elektronische Ressource
Chinesisch
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