Flotation recovery method for pyrochlore ore containing carbonate and mica

The invention provides a flotation recovery method of pyrochlore ore containing carbonate and mica, which comprises the following steps: crushing pyrochlore raw ore, grinding, and carrying out primary magnetic separation to obtain a magnetic product and a non-magnetic product; the non-magnetic products are subjected to grading operation, coarse-grained minerals are obtained and subjected to gravity separation operation, heavy minerals are obtained, fine-grained minerals are subjected to desliming, and underflow products are obtained; combining the heavy minerals with the underflow product, and carrying out first-stage flotation, first-stage roughing and two-stage scavenging to obtain an in-tank product 3; performing concentration operation on the product 3 in the tank, and then performing roughing twice and scavenging once to obtain a foam product 5; finely selecting the foam product 5 for 3-4 times to obtain a foam product 6 which is pyrochlore concentrate. According to the method, the ...