Process adopting barite-fluorite paragenic ore for preparing barite powder

Abstract

A process adopting barite-fluorite paragenic ore for preparing barite powder comprises the steps of (1), after crushing, screening and classifying the raw barite-fluorite paragenic ore, carrying out classification and gravity concentration; (2), dehydrating and drying the concentrate subjected to classification and gravity concentration in the step (1) so as to obtain barite rough concentrate; (3), separately carrying out photoelectric separation on the barite rough concentrate with the size fraction of 1-3 mm and 3-6 mm obtained in the step (2) so as to obtain barite concentrate with the whiteness classified; (4), grinding the barite rough concentrate with the size fraction smaller than 1 mm obtained in the step (2), the barite concentrate with the whiteness smaller than 88% obtained in the step (3) and the barite concentrate with the whiteness greater than or equal to 88% obtained in the step (3) so as to obtain the barite powder. The process has the advantages that the procedures are simple, the investment is small, the energy consumption is low, and gravity concentration waste water can be reused after being clarified so that environmental friendliness can be achieved. The yield of the barite concentrate with the whiteness greater than or equal to 88% is high, and the barite concentrate can be used in the high-end fields such as coatings, oil paint, rubber and the national defense industry after being ground to form powder.

Description

technical field [0001] The invention relates to a process for preparing barite powder by using barite-fluorite symbiotic ore, in particular to a process for preparing barite powder by using barite-fluorite symbiotic ore by combining gravity separation and photoelectric separation . Background technique [0002] Barite is the most common mineral of barium, the main component is barium sulfate (BaSO 4 ), has the characteristics of high density, stable chemical and thermal properties. The annual output of barite in my country accounts for about 45% of the total global output, reaching more than 3 million tons. Barite and fluorite resources are widely distributed in the southwest of Hubei, northwest of Hunan, southeast of Chongqing and northeast of Guizhou, and are the main producing areas of barite-fluorite symbiotic ore in my country. At present, barite powder is mainly used in low value-added fields such as petrochemical industry, such as barite weighting agent, chemical p...

AI Technical Summary

Problems solved by technology

Its technical defect is that the material has not been enriched by beneficiation before entering the photoelectric separation, the selected particle size is unreasonable, the -2mm particle size is small, the separation effect is poor, and the misselection rate is high, so it is not suitable for photoelectric separation.