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    • 3. 发明申请
    • TREATMENT OF SOLID-CONTAINING MATERIAL DERIVED FROM EFFLUENT
    • 处理从液体中得到的固体材料
    • WO1996032354A1
    • 1996-10-17
    • PCT/GB1996000884
    • 1996-04-11
    • ECC INTERNATIONAL LTD.PHIPPS, Jonathan, StuartADAMS, John, Michael
    • ECC INTERNATIONAL LTD.
    • C01F11/18
    • D21H17/675C01F11/18
    • A method for treating solid-containing material contained in or produced from waste paper or an effluent from a plant for treating paper or paper waste, the solid-containing material including organic material and inorganic particulate material, the method comprising subjecting the solid-containing material to a heat treatment which incinerates the organic material present and forms a calcined product from the inorganic particulate material present, and characterised in that the calcined product is formed into an aqueous suspension which includes a salt-forming cationic species and a reagent which contains or generates a salt-forming anionic species is added to the suspension to form an insoluble salt precipitate therein. The solid-containing material treated by the method may include calcium carbonate, whereby calcium oxide is formed in the heat treatment by decomposition of at least part of the calcium carbonate present, and wherein the calcium oxide is converted to calcium hydroxide when the calcined product is formed into an aqueous suspension, the said salt-forming cationic species comprising calcium ions derived from the calcium hydroxide and wherein the said reagent comprising a salt-forming anionic species comprises carbon dioxide whereby the precipitate comprises calcium carbonate.
    • 一种用于处理废纸中含有的或由其制造的含固体材料的方法,或用于处理纸或纸废物的来自植物的流出物,所述含固体的材料包括有机材料和无机颗粒材料,所述方法包括使含固体材料 涉及对存在的有机材料进行焚烧的热处理,并由存在的无机颗粒材料形成煅烧产物,其特征在于,将煅烧产物形成水性悬浮液,其包括形成盐的阳离子物质和含有或产生 将盐形成阴离子物质加入到悬浮液中以在其中形成不溶性盐沉淀物。 通过该方法处理的含固体材料可以包括碳酸钙,其中通过分解存在的至少一部分碳酸钙在热处理中形成氧化钙,并且其中当煅烧产物是煅烧产物时,氧化钙被转化为氢氧化钙 形成水悬浮液,所述形成盐的阳离子物质包含衍生自氢氧化钙的钙离子,并且其中所述包含形成盐的阴离子物质的试剂包含二氧化碳,由此沉淀物包括碳酸钙。