The technical point of the process is that the raw ore is scrubbed and added with water to form a slurry. After the negative pressure blasting, the impurities coexisting with the diatomaceous earth are separated. After the ultrasonic vibration is used to make the impurities in a moving state, after the invented diatomite ore special gravity water is added, static friction is generated under the rotation of the high speed separator. Using Fe 2 O 3, Al 2 O3 negatively charged particles, heavy alkali metal magnetic particles are positively charged in water, and diatomaceous amorphous SiO 2 composition remains neutral principle. The high-voltage static electricity generated by internal friction causes the impurities to not settle, and the diatoms are freely settled into diatom cake to achieve the purpose of separating diatoms from impurities. Thus, the medium and low grade diatomaceous earth is preferably a concentrate. 
Water-soluble Fertilizers Containing Trace Element
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