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Method for stabilizing leachable compounds in carbonate-bonded substrates
A method of producing a carbonate bonded article, the method comprising preparing a reactive mixture comprising a particulate mineral source and a water source, and reacting the reactive mixture with carbon dioxide to form a mineral matrix comprising carbonate. The particulate mineral source comprises a leachable compound comprising one or more elements selected from the group consisting of As, Ba, Cd, Cr, Co, Cu, F, Hg, Mo, Mn, Ni, Pb, Sb, Se, V, and Zn. The reactive mixture comprises a reducing agent wherein the reducing agent comprises one or more of sulfide, disulfide, and polysulfide compounds that react with the particulate mineral source, and the reactive mixture has a pH of at least 10.
生产碳酸盐粘结的制品的方法，该方法包括：制备包含微粒矿物来源和水来源的反应性混合物，以及使该反应性混合物与二氧化碳反应以形成包含碳酸盐的矿物基质。该微粒矿物来源包含可浸出化合物，该可浸出化合物包含选自以下的一种或多种元素：As、Ba、Cd、Cr、Co、Cu、F、Hg、Mo、Mn、Ni、Pb、Sb、Se、V和Zn。该反应性混合物包含还原剂，其中该还原剂包括与该微粒矿物来源反应的硫化物、二硫化物和多硫化物化合物中的一种或多种，并且该反应性混合物的pH为至少10。
Method for stabilizing leachable compounds in carbonate-bonded substrates
A method of producing a carbonate bonded article, the method comprising preparing a reactive mixture comprising a particulate mineral source and a water source, and reacting the reactive mixture with carbon dioxide to form a mineral matrix comprising carbonate. The particulate mineral source comprises a leachable compound comprising one or more elements selected from the group consisting of As, Ba, Cd, Cr, Co, Cu, F, Hg, Mo, Mn, Ni, Pb, Sb, Se, V, and Zn. The reactive mixture comprises a reducing agent wherein the reducing agent comprises one or more of sulfide, disulfide, and polysulfide compounds that react with the particulate mineral source, and the reactive mixture has a pH of at least 10.
生产碳酸盐粘结的制品的方法，该方法包括：制备包含微粒矿物来源和水来源的反应性混合物，以及使该反应性混合物与二氧化碳反应以形成包含碳酸盐的矿物基质。该微粒矿物来源包含可浸出化合物，该可浸出化合物包含选自以下的一种或多种元素：As、Ba、Cd、Cr、Co、Cu、F、Hg、Mo、Mn、Ni、Pb、Sb、Se、V和Zn。该反应性混合物包含还原剂，其中该还原剂包括与该微粒矿物来源反应的硫化物、二硫化物和多硫化物化合物中的一种或多种，并且该反应性混合物的pH为至少10。
Method for stabilizing leachable compounds in carbonate-bonded substrates
稳定碳酸盐粘结的基质中可浸出化合物的方法
SNELLINGS REUBEN (author) / QUAGBAL MICK (author) / SRIVASTAVA SRIVASTAVA (author) / COOL PEGGY (author) / NILSSON PETER (author)
2024-08-09
Patent
Electronic Resource
Chinese
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