公开(公告)号：US08808660B2

公开(公告)日：2014-08-19

申请号：US13145632

申请日：2010-02-09

申请人： Xiaowei Huang ,  Zhiqi Long ,  Hongwei Li ,  Dali Cui ,  Xinlin Peng ,  Guilin Yang ,  Yongke Hou ,  Chunmei Wang ,  Shunli Zhang

发明人： Xiaowei Huang ,  Zhiqi Long ,  Hongwei Li ,  Dali Cui ,  Xinlin Peng ,  Guilin Yang ,  Yongke Hou ,  Chunmei Wang ,  Shunli Zhang

IPC分类号： C01B31/24

CPC分类号： C22B3/44 ,  C04B22/064 ,  C04B22/066 ,  C22B59/00 ,  Y02P10/234

摘要： The present invention relates to a method of precipitation of metal ions. Mineral(s), oxide(s), hydroxide(s) of magnesium and/or calcium are adopted as raw materials, and the raw material(s) is processed through at least one step of calcination, slaking, or carbonization to produce aqueous solution(s) of magnesium bicarbonate and/or calcium bicarbonate, and then the solution(s) is used as precipitant(s) to deposit rare earth, such as nickel, cobalt, iron, aluminum, gallium, indium, manganese, cadmium, zirconium, hafnium, strontium, barium, copper and zinc ions. And at least one of metal carbonates, hydroxides or basic carbonates is obtained, or furthermore the obtained products are calcined to produce metal oxides. The invention takes the cheap calcium and/or magnesium minerals or their oxides, hydroxides with low purity as raw materials to instead common precipitants such as ammonium bicarbonate and sodium carbonate etc. The calcium, magnesium, carbon dioxide etc are efficiently and circularly used, and the environment pollution by ammonium-nitrogen wastewater, high concentration salts wastewater is avoided, and both of the discharge of greenhouse gas carbon dioxide and the production cost of metal are decreased.

摘要翻译： 本发明涉及一种沉淀金属离子的方法。 采用矿物，氧化物，镁和/或钙的氢氧化物作为原料，通过至少一个煅烧，去渣或碳化步骤处理原料以产生水溶液 碳酸氢钙和/或碳酸氢钙的溶液，然后使用该溶液作为沉淀剂沉积稀土，例如镍，钴，铁，铝，镓，铟，锰，镉， 锆，铪，锶，钡，铜和锌离子。 并且获得金属碳酸盐，氢氧化物或碱性碳酸盐中的至少一种，或者进一步将所得产物煅烧以产生金属氧化物。 本发明以廉价的钙和/或镁矿物或其氧化物，低纯度的氢氧化物为原料，代替普通的沉淀剂如碳酸氢铵和碳酸钠等。钙，镁，二氧化碳等有效和循环使用， 避免了氮铵废水，高浓度盐水等环境污染，温室气体二氧化碳的排放和金属的生产成本均下降。

公开(公告)号：US20110280778A1

公开(公告)日：2011-11-17

申请号：US13145632

申请日：2010-02-09

申请人： Xiaowei Huang ,  Zhiqi Long ,  Hongwei Li ,  Dali Cui ,  Xinlin Peng ,  Guilin Yang ,  Yongke Hou ,  Chunmei Wang ,  Shunli Zhang

发明人： Xiaowei Huang ,  Zhiqi Long ,  Hongwei Li ,  Dali Cui ,  Xinlin Peng ,  Guilin Yang ,  Yongke Hou ,  Chunmei Wang ,  Shunli Zhang

IPC分类号： C01F17/00 ,  C01G49/02 ,  C01F7/34 ,  C01G51/06 ,  C01G53/06 ,  C01G27/00 ,  C01G45/00 ,  C01G15/00 ,  C01G3/00 ,  C01G9/00 ,  C01G11/00 ,  C01G45/02 ,  C01F11/02 ,  C01G3/02 ,  C01G9/02 ,  C01F5/24 ,  C01F11/18

CPC分类号： C22B3/44 ,  C04B22/064 ,  C04B22/066 ,  C22B59/00 ,  Y02P10/234

摘要： The present invention relates to a method of precipitation of metal ions. Mineral(s), oxide(s), hydroxide(s) of magnesium and/or calcium are adopted as raw materials, and the raw material(s) is processed through at least one step of calcination, slaking, or carbonization to produce aqueous solution(s) of magnesium bicarbonate and/or calcium bicarbonate, and then the solution(s) is used as precipitant(s) to deposit rare earth, such as nickel, cobalt, iron, aluminum, gallium, indium, manganese, cadmium, zirconium, hafnium, strontium, barium, copper and zinc ions. And at least one of metal carbonates, hydroxides or basic carbonates is obtained, or furthermore the obtained products are calcined to produce metal oxides. The invention takes the cheap calcium and/or magnesium minerals or their oxides, hydroxides with low purity as raw materials to instead common precipitants such as ammonium bicarbonate and sodium carbonate etc. The calcium, magnesium, carbon dioxide etc are efficiently and circularly used, and the environment pollution by ammonium-nitrogen wastewater, high concentration salts wastewater is avoided, and both of the discharge of greenhouse gas carbon dioxide and the production cost of metal are decreased.

摘要翻译： 本发明涉及一种沉淀金属离子的方法。 采用矿物，氧化物，镁和/或钙的氢氧化物作为原料，通过至少一个煅烧，去渣或碳化步骤处理原料以产生水溶液 碳酸氢钙和/或碳酸氢钙的溶液，然后使用该溶液作为沉淀剂沉积稀土，例如镍，钴，铁，铝，镓，铟，锰，镉， 锆，铪，锶，钡，铜和锌离子。 并且获得金属碳酸盐，氢氧化物或碱性碳酸盐中的至少一种，或者进一步将所得产物煅烧以产生金属氧化物。 本发明以廉价的钙和/或镁矿物或其氧化物，低纯度的氢氧化物为原料，代替普通的沉淀剂如碳酸氢铵和碳酸钠等。钙，镁，二氧化碳等有效和循环使用， 避免了氮铵废水，高浓度盐水等环境污染，温室气体二氧化碳的排放和金属的生产成本均下降。