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    • 10. 发明公开
    • DIATOMACEOUS EARTH PRODUCT AND METHOD FOR MAKING PRODUCT
    • KIESELGURPRODUKT UND VERFAHREN ZUR HERSTELLUNG DES PRODUKTS
    • EP3079807A4
    • 2017-08-02
    • EP14870575
    • 2014-12-01
    • IMERYS FILTRATION MINERALS INC
    • TANIGUCHI JEFFREY D
    • B01J20/14B01J20/28
    • B01J20/14B01D39/06B01D2239/1291B01J20/28011B01J20/28059
    • A diatomaceous earth product may include diatomaceous earth having a loose weight density of less than about 14 lbs/ft3, and a stoichiometric ratio of alkali metal to iron and/or aluminum ranging from about 100% to about 400%. A diatomaceous earth product may include diatomaceous earth having a loose weight density of less than about 14 lbs/ft3, and a silica specific volume of at least about 3.2, A method for making a low loose weight density diatomaceous earth product may include providing a feed material comprising diatomaceous earth having a silica specific volume of at least about 3.5. The method may further include adding alkali flux to the feed material to achieve a combination having a stoichiometric ratio of alkali metal to iron and/or aluminum that ranges from about 100% to about 400%, calcining the combination at a temperature ranging from about 1,600° F. to about 2,200° F.
    • 硅藻土产品可以包括具有小于约14磅/立方英尺的松散重量密度和约100%至约400%的碱金属与铁和/或铝的化学计量比的硅藻土。 硅藻土产品可以包括具有小于约14磅/立方英尺的松散重量密度和至少约3.2的硅石比体积的硅藻土。用于制造低松散密度硅藻土产品的方法可以包括提供饲料 包含二氧化硅比体积至少约为3.5的硅藻土的材料。 该方法可以进一步包括将碱性助熔剂添加到原料中以获得具有范围从约100%至约400%的碱金属与铁和/或铝的化学计量比的组合,在约1600℃ °F至约2,200°F