Method of using low-quality short fiber sepiolite for preparing high-performance adsorbing material

The invention discloses a method of using low-quality short fiber sepiolite for preparing a high-performance adsorbing material. The method is characterized by including the following steps that 1, low-quality short fiber sepiolite raw ore is purified to be ore concentrate, wherein the mass concentration of ore pulp is changed to be 2-5% at the moment; 2, the ore pulp is treated through a superconductivity magnetic separator, the intensity of a magnetic field is 3-5.5 T, and a filter cake is obtained through precipitating, filter pressing and dehydrating; 3, a double-screw mixer is adopted for mashing the filter cake, an acid agent is added, and the acid agent accounts for 2-10% of the solid content of the filter cake according to the addition quantity of the acid agent; 4, a material is fed into a microwave field to be kept for 5-30 minutes, wherein the microwave frequency is 2000 MHz-8000MHz; 5, the material is subjected to spraying, suction filtration and washing; 6, a pore-forming material is added into the material and is a mixture of active carbon and water glass, the mixture and the material are subjected to an ageing reaction and prepared into particles through granulation, and the high-performance adsorbing material is prepared through dehydrating and drying. The specific surface area and pore volume of the sepiolite treated through the method are increased obviously, and compared with a common treatment method, the adsorbing performance of the treated sepiolite is improved by one or more times.