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1. 发明公开

EP3205733A1 METALLURGICAL PROCESS FOR TUNGSTEN MINERAL RAW MATERIAL WITH NO POLLUTANT DISCHARGE IN ENTIRE PROCESS 审中-公开
标题翻译：冶金工业全过程无污染排放的钨矿产原料冶金工艺
公开(公告)号：EP3205733A1
公开(公告)日：2017-08-16
申请号：EP15848554.0
申请日：2015-08-21
申请人： Jiangxi Rare Earth & Rare Metals Tungsten Group Holding Co., Ltd. , Central South University
发明人： LI, Xiaobin , CUI, Yuanfa , ZHOU, Qiusheng , LI, Jianpu , QI, Tiangui , XU, Shuang , LIU, Guihua , LIN, Guorong , PENG, Zhihong , LI, Jihong , XU, Xiangming , TONG, Xiaoyi
IPC分类号： C22B34/36 , C22B3/14
CPC分类号： C22B3/14 , C22B34/36 , Y02P10/234
摘要： A metallurgical process for a tungsten mineral raw material (100), comprising: employing a weak base leaching agent conducive to forming a local process circulation, the leaching agent generating two or more gases in an evaporative crystallization process, each kind of gas being able to participate again in the synthesis of the leaching agent, and a crystallized separation scrubbing solution being similarly recycled as a leaching agent; and employing a transformation ingredient, the transformation ingredient having a chemical reaction with the tungsten mineral raw material (100) to enable tungsten element to be comprised in an intermediate easily dissolved by the leaching agent, and a leaching residue also comprising an ingredient element, such that at least a part of the leaching residue can be recycled as the ingredient. The process comprises a plurality of closed cycles, and produces no wastewater discharge in the entire process.
摘要翻译：一种用于钨矿石原料（100）的冶金工艺，包括：采用有助于形成局部工艺循环的弱碱浸出剂，所述浸出剂在蒸发结晶工艺中产生两种或更多种气体，每种气体能够再次参与浸出剂的合成，并且结晶分离洗涤溶液被类似地再循环作为浸出剂; 并且使用转化成分，所述转化成分与钨矿物原料（100）发生化学反应以使得钨元素被包含在易于被浸出剂溶解的中间体中，并且浸出残余物也包含成分元素，例如至少有一部分浸出残渣可作为成分循环使用。该过程包括多个闭合循环，并且在整个过程中不产生废水排放。

2. 发明公开

EP2505678A1 METHOD OF WASHING ANODE SLIME FROM LEAD-BISMUTH ALLOY ELECTROLYSIS 审中-公开
标题翻译： VERFAHREN ZUM ABWASCHEN VON ANODENSCHLAMM AUS EINER BLEI-BISMUT-LEGIERUNGSELEKTROLYSE
公开(公告)号：EP2505678A1
公开(公告)日：2012-10-03
申请号：EP09851590.1
申请日：2009-12-30
申请人： Jiangxi Rare Earth & Rare Metals Tungsten Group Holding Co., Ltd.
发明人： LIN, Guorong , YU, Huanrong , LI, Jihong
IPC分类号： C22B3/04 , C22B3/06 , C22B7/02 , C25C1/18 , C25C1/22
CPC分类号： C22B7/006 , B08B3/00 , B08B3/04 , B08B3/14 , B08B7/04 , C01G21/006 , C22B7/007 , C22B13/045 , C22B30/06 , C25C1/18 , C25C3/34 , C25C7/06 , Y02P10/234
摘要： A method of washing anode slime from lead-bismuth alloy electrolysis is disclosed, wherein a lead fluorosilicate solution with high concentration can be obtained by using the anode slime from lead-bismuth alloy electrolysis as raw material, which is characterized in that the method includes the following steps: (1) pretreating the anode slime, (2) primarily soaking the anode slime, (3) secondarily soaking the anode slime. A method of washing anode slime from lead-bismuth alloy electrolysis, and obtaining a soaking solution containing a lot of lead ions and fluorosilicic anions is provided. The soaking supernatant is added directly into the electrolyte-circulating system of lead-bismuth alloy electrolysis, which increases the utilization rate of lead ions and fluorosilicic anions, and improves the environment for smelting bismuth and silver, while reduces production cost for smelting lead, bismuth and silver. The method optimizes the process for the lead-bismuth alloy electrolysis, and solves the problem of "lean-lead" in the lead-bismuth alloy electrolysis.
摘要翻译：公开了一种从铅 - 铋合金电解中洗涤阳极泥的方法，其中通过以铅 - 铋合金电解为原料的阳极泥可以获得高浓度的氟硅酸铅溶液，其特征在于该方法包括以下步骤：（1）预处理阳极泥，（2）主要浸泡阳极泥，（3）二次浸泡阳极泥。提供了从铅 - 铋合金电解中洗涤阳极泥的方法，并获得含有大量铅离子和氟硅阴离子的均热溶液。将浸泡的上清液直接加入到铅 - 铋合金电解液的电解液循环系统中，提高了铅离子和氟硅酸盐的利用率，改善了铋和银的冶炼环境，同时降低了铅，铋的生产成本和银。该方法优化了铅铋合金电解过程，解决了铅铋合金电解中“稀铅”问题。

3. 发明公开

EP2511238A1 PROCESS FOR PRODUCING BASIC LEAD CARBONATE 审中-公开
标题翻译： VERFAHREN ZUR HERSTELLUNG VON BASISCHEM BLEICARBONAT
公开(公告)号：EP2511238A1
公开(公告)日：2012-10-17
申请号：EP09851990.3
申请日：2009-12-30
申请人： Jiangxi Rare Earth & Rare Metals Tungsten Group Holding Co., Ltd.
发明人： LIN, Guorong , YU, Huanrong , LI, Jihong
IPC分类号： C01G21/14
CPC分类号： C01G21/14 , C22B7/04 , Y02P10/212
摘要： A process for producing basic lead carbonate is provided. The process comprises: (1) immersing neutralization slag to obtain sodium hydroxide solution; (2) leaching lead chloride slag with the aqueous solution containing sodium chloride and hydrochloric acid, adding sodium sulfide and filtering; (3) neutralizing the filtrate with sodium hydroxide solution, filtering and washing the precipitate; and (4) converting the precipitate to basic lead carbonate with ammonium bicarbonate, crystallizing and washing. Said neutralization slag and lead chloride slag are the redundant slag from fire refining bismuth. Said process makes better use of the redundant slag from fire refining bismuth, saves resources and reduces environmental pollution.
摘要翻译：提供碱式碳酸铅的制备方法。该方法包括：（1）浸入中和渣得到氢氧化钠溶液; （2）用含氯化钠和盐酸的水溶液浸出氯化铅渣，加入硫化钠并过滤; （3）用氢氧化钠溶液中和滤液，过滤并洗涤沉淀物; 和（4）用碳酸氢铵将沉淀物转化为碱式碳酸铅，结晶并洗涤。所述中和渣和氯化铅渣是来自消防炼铋的多余渣。所述方法更好地利用来自消防炼铋的多余渣，节省资源，减少环境污染。

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