发明名称 Arsenic-containing solid material and method for production thereof
摘要 <p>Provided is an arsenic-containing solid comprising 100 parts by mass of a scorodite-type iron-arsenic compound and at least 1 part by mass of an iron oxide compound added thereto, in which the scorodite-type iron-arsenic compound is produced by adding an oxidizing agent to an aqueous acidic solution that contains a 5-valent arsenic (V) ion and a 2-valent iron (II) ion, then promoting the precipitation of an iron-arsenic compound with stirring the liquid, and finishing the precipitation thereof within a range where the pH of the liquid is at most 1.2. The iron oxide compound includes goethite, hematite and their mixture, preferably having a BET specific surface area of at least 3 m 2 /g, more preferably at least 20 m 2 /g .</p>
申请公布号 AU2008227516(A1) 申请公布日期 2008.09.25
申请号 AU20080227516 申请日期 2008.03.13
申请人 DOWA METALS & MINING CO., LTD. 发明人 RYOICHI TAGUCHI;TETSUO FUJITA;HISASHI KUBO
分类号 C01G49/00;B01D9/02 主分类号 C01G49/00
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