Purification processing method of aluminum ore for fracturing propping agent

The invention discloses a purification processing method of aluminum ore for a fracturing propping agent, and relates to the technical field of ore purification. The invention discloses a purification processing method of aluminum ore for a fracturing propping agent. The purification processing method comprises the following steps: sequentially carrying out crushing treatment and dry grinding treatment on an aluminum ore raw material to obtain raw material particles; putting the raw material particles into a flotation agent, stirring, blowing, standing, taking dross on the upper part of the flotation agent, and cleaning to obtain a refined aluminum ore product; in the step S2, the flotation agent is prepared from the following raw materials in parts by weight: 3-5 parts of sodium carbonate, 5-15 parts of polyethylene glycol-polyacrylic acid-N-isopropylacrylamide copolymer, 5-15 parts of chitosan polyurea, 1-2 parts of sodium hexadecyl sulfate, 5-10 parts of polyacrylamide and 70-80 parts of water. The aluminu