公开(公告)号：US20130115149A1

公开(公告)日：2013-05-09

申请号：US13643378

申请日：2011-04-27

Applicant: Zhaohua Guo ,  Cundi Wei ,  Peiping Zhang ,  Jianguo Han ,  Junzhou Chi ,  Yanbin Sun ,  Yixin Zhao

Inventor： Zhaohua Guo ,  Cundi Wei ,  Peiping Zhang ,  Jianguo Han ,  Junzhou Chi ,  Yanbin Sun ,  Yixin Zhao

IPC: C22B21/00

CPC classification number: C22B21/0023 ,  B09B3/00 ,  B09B3/0083 ,  B09B2220/06 ,  C01F7/30 ,  C01F7/62 ,  C22B3/10 ,  C22B3/42 ,  C22B7/005 ,  C22B7/007 ,  C22B7/02 ,  C22B21/0046 ,  Y02P10/234

Abstract: Provided a method for preparing metallurgical-grade alumina by using fluidized-bed fly ash, comprising: a) removing iron by wet magnetic separation after crushing the fly ash; b) reacting the fly ash after magnetic separation with hydrochloric acid to obtain a hydrochloric leachate; c) passing the hydrochloric leachate through macro-porous cationic resin to deeply remove iron to obtain a refined aluminum chloride solution; d) concentrating and crystallizing the refined aluminum chloride solution to obtain an aluminum chloride crystal; and e) calcining the aluminum chloride crystal to obtain the metallurgical-grade alumina. The method is simple, the procedure is easy to be controlled, the extraction efficiency of alumina is high, the production coast is low, and the product quality is steady.

Abstract translation: 提供了一种使用流化床飞灰制备冶金级氧化铝的方法，包括：a）粉碎飞灰后通过湿磁分离除铁; b）磁力分离后的飞灰与盐酸反应，得到盐酸渗滤液; c）将盐酸渗滤液通过大孔阳离子树脂深入除铁，得到精制氯化铝溶液; d）浓缩和结晶精制氯化铝溶液以获得氯化铝晶体; 和e）煅烧氯化铝晶体以获得冶金级氧化铝。 方法简单，操作简便，氧化铝提取效率高，生产海岸低，产品质量稳定。

公开(公告)号：US08728296B2

公开(公告)日：2014-05-20

申请号：US13643385

申请日：2011-04-27

Applicant: Dazhao Gu ,  Yinshan Jiang ,  Cundi Wei ,  Jianguo Han ,  Deli Yu ,  Zhaohua Guo ,  Yixin Zhao ,  Ping Zou ,  Chunbin Guo

Inventor： Dazhao Gu ,  Yinshan Jiang ,  Cundi Wei ,  Jianguo Han ,  Deli Yu ,  Zhaohua Guo ,  Yixin Zhao ,  Ping Zou ,  Chunbin Guo

IPC: C25C1/22 ,  C22B58/00

CPC classification number: C25C1/22 ,  B03C1/03 ,  B03C1/032 ,  B03C1/0335 ,  B03C1/034 ,  B03C2201/18 ,  C22B3/42 ,  C22B7/007 ,  C22B58/00 ,  C25C7/02 ,  Y02P10/234

Abstract: Disclosed is a method for extracting gallium from fly ash, which comprises the following steps: crushing the fly ash and removing Fe by magnetic separation; then dissolving it by using hydrochloric acid to obtain hydrochloric acid leachate; adsorbing gallium contained in the hydrochloric acid leachate with macro-porous cationic resin, followed by eluting to obtain an eluent containing gallium; adding masking agent to mask ferric ion to obtain an eluent containing gallium after masking; adsorbing gallium in the eluent containing gallium after masking with macro-porous cationic resin, followed by eluting to obtain a secondary eluent; adding sodium hydroxide solution into the secondary eluent to react; filtering and removing precipitates after reaction, and then concentrating the filtrate and electrolyzing to obtain metal gallium. The method simplifies the process and improves extraction efficiency of gallium.

Abstract translation: 本发明公开了一种从粉煤灰中提取镓的方法，包括以下步骤：粉碎飞灰并通过磁选除去Fe; 然后用盐酸溶解得到盐酸浸出液; 用大孔阳离子树脂吸附盐酸浸出液中的镓，然后洗脱得到含镓的洗脱液; 加入掩蔽剂掩蔽铁离子，得到掩蔽后含镓的洗脱液; 用大孔阳离子树脂掩蔽后，在含镓的洗脱液中吸附镓，然后洗脱得到二次洗脱液; 将氢氧化钠溶液加入二次洗脱液中反应; 反应后过滤除去沉淀物，然后浓缩滤液并电解，得到金属镓。 该方法简化了工艺，提高了镓的提取效率。

公开(公告)号：US08568671B2

公开(公告)日：2013-10-29

申请号：US13643378

申请日：2011-04-27

Applicant: Zhaohua Guo ,  Cundi Wei ,  Peiping Zhang ,  Jianguo Han ,  Junzhou Chi ,  Yanbin Sun ,  Yixin Zhao

Inventor： Zhaohua Guo ,  Cundi Wei ,  Peiping Zhang ,  Jianguo Han ,  Junzhou Chi ,  Yanbin Sun ,  Yixin Zhao

IPC: C01F7/00

CPC classification number: C22B21/0023 ,  B09B3/00 ,  B09B3/0083 ,  B09B2220/06 ,  C01F7/30 ,  C01F7/62 ,  C22B3/10 ,  C22B3/42 ,  C22B7/005 ,  C22B7/007 ,  C22B7/02 ,  C22B21/0046 ,  Y02P10/234

Abstract: Provided a method for preparing metallurgical-grade alumina by using fluidized-bed fly ash, comprising: a) removing iron by wet magnetic separation after crushing the fly ash; b) reacting the fly ash after magnetic separation with hydrochloric acid to obtain a hydrochloric leachate; c) passing the hydrochloric leachate through macro-porous cationic resin to deeply remove iron to obtain a refined aluminum chloride solution; d) concentrating and crystallizing the refined aluminum chloride solution to obtain an aluminum chloride crystal; and e) calcining the aluminum chloride crystal to obtain the metallurgical-grade alumina. The method is simple, the procedure is easy to be controlled, the extraction efficiency of alumina is high, the production coast is low, and the product quality is steady.

Abstract translation: 提供了一种使用流化床飞灰制备冶金级氧化铝的方法，包括：a）粉碎飞灰后通过湿磁分离除铁; b）磁力分离后的飞灰与盐酸反应，得到盐酸渗滤液; c）将盐酸渗滤液通过大孔阳离子树脂深入除铁，得到精制氯化铝溶液; d）浓缩和结晶精制氯化铝溶液以获得氯化铝晶体; 和e）煅烧氯化铝晶体以获得冶金级氧化铝。 方法简单，操作简便，氧化铝提取效率高，生产海岸低，产品质量稳定。

公开(公告)号：US20130081954A1

公开(公告)日：2013-04-04

申请号：US13643385

申请日：2011-04-27

Applicant: Dazhao Gu ,  Yinshan Jiang ,  Cundi Wei ,  Jianguo Han ,  Deli Yu ,  Zhaohua Guo ,  Yixin Zhao ,  Ping Zou ,  Chunbin Guo

Inventor： Dazhao Gu ,  Yinshan Jiang ,  Cundi Wei ,  Jianguo Han ,  Deli Yu ,  Zhaohua Guo ,  Yixin Zhao ,  Ping Zou ,  Chunbin Guo

IPC: C25C1/22 ,  C25C7/02 ,  C22B58/00

CPC classification number: C25C1/22 ,  B03C1/03 ,  B03C1/032 ,  B03C1/0335 ,  B03C1/034 ,  B03C2201/18 ,  C22B3/42 ,  C22B7/007 ,  C22B58/00 ,  C25C7/02 ,  Y02P10/234

Abstract: Disclosed is a method for extracting gallium from fly ash, which comprises the following steps: crushing the fly ash and removing Fe by magnetic separation; then dissolving it by using hydrochloride acid to obtain hydrochloric acid leachate; adsorbing gallium contained in the hydrochloric acid leachate with macro-porous cationic resin, followed by eluting to obtain an eluent containing gallium; adding masking agent to mask ferric ion to obtain an eluent containing gallium after masking; adsorbing gallium in the eluent containing gallium after masking with macro-porous cationic resin, followed by eluting to obtain a secondary eluent; adding sodium hydroxide solution into the secondary eluent to react; filtering and removing precipitates after reaction, and then concentrating the filtrate and electrolyzing to obtain metal gallium. The method simplifies the process and improves extraction efficiency of gallium.

Abstract translation: 本发明公开了一种从粉煤灰中提取镓的方法，包括以下步骤：粉碎飞灰并通过磁选除去Fe; 然后用盐酸溶解得到盐酸浸出液; 用大孔阳离子树脂吸附盐酸浸出液中的镓，然后洗脱得到含镓的洗脱液; 加入掩蔽剂掩蔽铁离子，得到掩蔽后含镓的洗脱液; 用大孔阳离子树脂掩蔽后，在含镓的洗脱液中吸附镓，然后洗脱得到二次洗脱液; 将氢氧化钠溶液加入二次洗脱液中反应; 反应后过滤除去沉淀物，然后浓缩滤液并电解，得到金属镓。 该方法简化了工艺，提高了镓的提取效率。