coating material tio2 suppliers

Washed with ethanol nZnS-BaS0 4 crystalline cake, washing the filter cake drying cabinet at 105 ° C after drying lh pulverized by atomic absorption detection zinc, barium yield, in order to reach 98.4% based on zinc, barium meter 99%, ZnS mass fraction accounted for 36.6%. The total mass fraction of zinc sulfide and barium sulfate reached 99.22%, and the mass fraction of ZnS accounted for 36.6%. The particle size of barium sulfide is larger than that of zinc sulfide, which is 77 nm and 38 calendars respectively. The indicators of tinting strength and oil absorption exceed the GB/T1707-1995 B311 type.

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The natural barite containing more than 95% of barium sulfate is mixed with anthracite in a ratio of 3:1 (mass), and is pulverized to a diameter of about 2 cm or less to enter a reduction furnace, and the front stage of the furnace temperature is controlled by 1000 to 1200 ° C, and the latter stage is 500 to 600 ° C, the reduction furnace rotates at a speed of 80s per revolution, the reaction conversion rate is 80% to 90%, the obtained barium sulfide enters the leaching device, the control temperature is above 65 ° C, and the content of barium sulfide is 701%, and then enters the clarification. The barrel is clarified and then added with zinc sulfate to control the zinc sulfate content to be greater than 28%, and the pH is 8-9, and a mixture of barium sulfate and zinc sulfide having a density of

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{随机栏目} 2025-08-14 04:53 2109