Requirements of quality standard of barite barite ore
Standard has been formulated, water-soluble salt (calculated according to calcium) is not greater than 250PPm; 200 mesh screen margin is not greater than 3%; 325 mesh screen margin is not greater than 5%.Barite used in chemical industry is divided into three grades. The required indexes are: BaSO4, SiO2, Fe2O3, Al2O3 and water soluble salts, as shown in table 5.
Paint with barite powder quality requirements of use requirements note BaSO4,% CaCO3,% Fe2O3,% by the particle size, 90~95 < 325 0.05 mesh paint requirements of high whiteness rubber filler > 98 < 0.36 trace <325 is not allowed to contain Mn, Cu and Pb impurities of ordinary glass > 96 < 0.260 SiO2< < 0.1 1.5%, Al2O<0.15% lithopone 95~98 < 1 SiO2<1% Al2O3, the less the better international trade grade products in international trade, generally according to different purposes will be divided into three grade barite
Barite products have different specifications and quality requirements according to their uses.Oil drilling barite in China oil drilling barite powder quality requirements are listed in Table 4Table 4 oil drilling barite powder quality targets of note density, g/cm = 4.2 - 200 mesh fineness,%- 325 mesh% = 97
