公开(公告)号：EP2794942A4

公开(公告)日：2015-09-09

申请号：EP12858933

申请日：2012-12-21

申请人： COREX MATERIALS INC

发明人： KARBARZ FRANK A

IPC分类号： C22B26/20 ,  C01F11/18 ,  C09C1/02 ,  C22B7/00

CPC分类号： C22B26/20 ,  C01F11/18 ,  C01P2004/39 ,  C01P2004/61 ,  C01P2006/80 ,  C09C1/021 ,  C22B7/04 ,  Y02P10/212

摘要： A method of mineralizing calcium from industrial waste comprising extracting calcium ions from a suspension of calcium rich granular particles and aqueous ammonium nitrate to form a calcium-rich first fraction and a heavy second fraction. The heavy second fraction is separated from the first fraction and the calcium-rich first fraction is carbonated with a gas comprising carbon dioxide to form a suspension of precipitated calcium carbonate and aqueous ammonium nitrate. The precipitate is separated from the aqueous ammonium nitrate by centrifugal means and the separated heavy second fraction comprises an enriched weight percent of iron.

公开(公告)号：EP2794942A1

公开(公告)日：2014-10-29

申请号：EP12858933.0

申请日：2012-12-21

申请人： Corex Materials Inc.

发明人： KARBARZ, Frank A.

IPC分类号： C22B26/20 ,  C22B7/00

CPC分类号： C22B26/20 ,  C01F11/18 ,  C01P2004/39 ,  C01P2004/61 ,  C01P2006/80 ,  C09C1/021 ,  C22B7/04 ,  Y02P10/212

摘要： A method of mineralizing calcium from industrial waste comprising extracting calcium ions from a suspension of calcium rich granular particles and aqueous ammonium nitrate to form a calcium-rich first fraction and a heavy second fraction. The heavy second fraction is separated from the first fraction and the calcium-rich first fraction is carbonated with a gas comprising carbon dioxide to form a suspension of precipitated calcium carbonate and aqueous ammonium nitrate. The precipitate is separated from the aqueous ammonium nitrate by centrifugal means and the separated heavy second fraction comprises an enriched weight percent of iron.

摘要翻译： 一种从工业废物中矿化钙的方法，包括从富含钙的颗粒和氯化铵水溶液的悬浮液中提取钙离子，形成富钙的第一馏分和重的第二馏分。 将重的第二馏分与第一馏分分离，并且用含二氧化碳的气体将富钙的第一馏份碳酸化以形成沉淀碳酸钙和氯化铵水溶液的悬浮液。 通过离心方式将沉淀物与氯化铵水溶液分离，分离的重质二级馏分包含铁的富含重量百分数。