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用离旋加选择性絮凝的湿法选矿工艺，可将ＳｉＯ２含量为７５％左右的团田中位硅藻土的品位提高到ＳｉＯ２＞８５％以上，达到高品位的水平。用此精矿加工的助滤剂的滤速４．３０－５．２６ｍｌ／ｃｍ２·ｍｉｎ，过滤效果好，其它指标符合食品助滤剂要求。
With the spin-selective flocculation of the wet beneficiation process, the SiO2 content of about 75% of the Central Valley diatomite grade increased to SiO2> 85%, reaching high levels. With this concentrate processing filter aid filtration rate 4.30-5.26ml / cm2 · min, filtering effect, and other indicators in line with food filter aid requirements.