基本信息:
- 专利标题： METHOD OF ALKALI PROCESSING SUBSTANCE CONTAINING ARSENIC
- 专利标题（中）：含碱性物质的碱处理方法
- 申请号：US12452586 申请日：2008-07-11
- 公开(公告)号：US20100215570A1 公开(公告)日：2010-08-26
- 发明人： Mitsuo Abuyima , Yusuke Sato , Hironobu Mikami , Masami Oouchi , Tetsuo Fujita , Masayoshi Matsumoto
- 申请人： Mitsuo Abuyima , Yusuke Sato , Hironobu Mikami , Masami Oouchi , Tetsuo Fujita , Masayoshi Matsumoto
- 申请人地址： JP TOKYO
- 专利权人： DOWA METALS & MINING CO., LTD.
- 当前专利权人： DOWA METALS & MINING CO., LTD.
- 当前专利权人地址： JP TOKYO
- 优先权： JP2007-185072 20070713; JP2008-059366 20080310
- 国际申请： PCT/JP2008/062619 WO 20080711
- 主分类号： C01G28/00
- IPC分类号： C01G28/00
摘要：
To provide a method of generating, with good reproducibility and ease and without complicated operations, scorodite which satisfies the elution standard (in accordance with Notification of No. 13 of Japanese Environment Agency) and which has good filterbility and stability for processing arsenic contained in a non-ferrous smelting intermediate, particularly, for processing a diarsenic trioxide form. A method of processing diarsenic trioxide, including: a leaching step of adding water and alkali to a non-ferrous smelting intermediate that contains diarsenic trioxide to produce slurry, heating the slurry, and leaching arsenic; a solution adjusting step of adding an oxidizing agent to the leachate to oxidize trivalent arsenic to pentavalent arsenic so as to obtain an adjusted solution; and a crystallizing step of converting arsenic in the adjusted solution to scorodite crystal.
摘要（中）：
为了提供满足洗脱标准（根据日本环境局第13号的通知）的具有良好的再现性和容易性，无复杂操作的臭氧石，其具有良好的过滤性和稳定性，用于处理 有色金属冶炼中间体，特别是用于加工三氧化二砷形式。 一种处理三氧化二砷的方法，包括：向含有三氧化二砷的有色金属冶炼中间体加水和碱产生浆料，加热浆料和浸出砷的浸出步骤; 向渗滤液中添加氧化剂以将三价砷氧化为五价砷的溶液调整工序，得到调整溶液; 以及将调整后的溶液中的砷转化为臭葱石晶体的结晶工序。
公开/授权文献:
- US08147779B2 Method of alkali processing substance containing arsenic 公开/授权日：2012-04-03