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1. 发明申请

WO2004092425A1 METHOD FOR PROCESSING SULFIDE MINERALS AND CONCENTRATES 审中-公开
标题翻译：用于处理硫化矿物和浓度的方法
公开(公告)号：WO2004092425A1
公开(公告)日：2004-10-28
申请号：PCT/RU2003/000170
申请日：2003-04-16
申请人： SHAPOVALOV, Viatcheslav Dmitrievich , FOKIN, Konstantin Sergeevich , SHOKHIN, Aleksandr Nikolaevich
发明人： SHAPOVALOV, Viatcheslav Dmitrievich , FOKIN, Konstantin Sergeevich , SHOKHIN, Aleksandr Nikolaevich
IPC分类号： C22B3/06
CPC分类号： C01B17/96 , C22B3/06 , C22B3/065 , C22B3/08 , C22B3/44 , C22B11/04 , C22B15/0073 , C22B19/22 , C22B23/0438 , Y02P10/234 , Y02P10/236
摘要： The method is referred to hydrometallurgical process and serves for recovery of nonferrous, rare and precious metals from sulfide minerals and concentrates. The invention is aimed at creating conditions for the most complete extraction of metals, preventing formation of elementary sulfur. The objective is attained by means of the following: the hydrometallurgical method of sulfide minerals and concentrates processing, which involves sulfide minerals oxidation in aqueous medium using nitrogen oxides, envisages that the sulfide materials containing slurry are subjected to oxidation of the sulfide and the oxidation is realized under controlled conditions of the slurry acidity, i.e. with constant neutralization of sulfuric acid formed as a result of the sulfides oxidation, moreover, sulfuric acid is neutralized to acidity level, at which no formation of elementary sulfur occurs, while natural or artificial substances, such as CaC0 3 , MgC0 3 , Ca(OH) 2 , CaO, NaOH, CaHP0 4 etc., are used as acidity neutralizers; the choice of a specific neutralizer is dictated by the necessity of formation of slurry neutralization products with assigned physicochemical properties: filterability, slurry thickening, arsenic substance insolubility, nontoxicity and other required properties. Oxidation of sulfide minerals is realized under agitation providing sufficient mass exchange and efficient occurrence of chemical reactions. Oxidation is realized in the temperature range of 20-90°C, mainly in the range of 65-85°C. The liquid-to-solid ratio may vary from 1:1 to 5:1, depending on effectiveness of the required precipitate formation and proceeding of sulfide oxidation reactions. Nitric and nitrous acids, as well as their oxides, mainly nitrous acid, HN0 2 , and its oxide, N 2 0 3 , are used as oxidizing agents. Regeneration processes of NO to N 2 0 3 are also described.
摘要翻译：该方法称为湿法冶金工艺，用于从硫化矿物和浓缩物中回收有色金属，稀有金属和贵金属。本发明旨在为金属的最完全提取创造条件，防止形成元素硫。目的是通过以下方式实现：硫化物矿物和浓缩物处理的湿法冶金方法，其涉及使用氮氧化物在含水介质中的硫化物矿物氧化，设想含硫化物的浆料经历硫化物的氧化，氧化是在浆料酸度的控制条件下实现，即由于硫化物氧化而形成的硫酸的不断中和，而且硫酸被中和到酸性水平，其中没有形成元素硫，而天然或人造物质，例如CaCO 3，MgCO 3，Ca（OH）2，CaO，NaOH，CaHP 4等作为酸性中和剂; 特定中和剂的选择由具有指定的物理化学性质的浆料中和产物的必要性决定：过滤性，浆料增稠，砷物质不溶性，无毒性和其它所需性质。在搅拌下实现硫化物矿物的氧化，提供充分的质量交换和有效的化学反应发生。在20-90℃的温度范围内实现氧化，主要在65-85℃的范围内。取决于所需的沉淀形成和硫化物氧化反应的进行的有效性，液固比可以在1:1至5:1之间变化。硝酸和亚硝酸以及其氧化物，主要是亚硝酸，HNO 2及其氧化物N 2 O 3用作氧化剂。还描述了NO对N 2 O 3的再生过程。

2. 发明申请

WO2004087970A1 METHOD FOR RECOVERY OF NONFERROUS, RARE AND PRECIOUS METALS FROM ROBUST MINERALS 审中-公开
标题翻译：从矿物矿中回收非金属，稀有金属和重金属的方法
公开(公告)号：WO2004087970A1
公开(公告)日：2004-10-14
申请号：PCT/RU2003/000131
申请日：2003-04-02
申请人： SHAPOVALOV, Viatcheslav Dmitrievich , FOKIN, Konstantin Sergeevich , SHOKHIN, Aleksandr Nikolaevich
发明人： SHAPOVALOV, Viatcheslav Dmitrievich , FOKIN, Konstantin Sergeevich , SHOKHIN, Aleksandr Nikolaevich
IPC分类号： C22B3/14
CPC分类号： C22B3/06 , C22B3/10 , C22B3/44 , C22B11/04 , Y02P10/234
摘要： The method is referred to hydrometallurgy process and it serves for recovery of nonferrous, rare and precious metals from robust (hard to process) minerals, which may contain natural carbon or other robust compounds. This invention is aimed at increasing the recovery of nonferrous, rare and precious metals from robust minerals with simultaneous reduction of processing costs. The objective is attained, as the method for recovery of nonferrous, rare and precious metals from robust minerals envisages the processing of robust carbon-containing minerals by oxygen-containing oxidant with subsequent extraction of precious metal compounds from liquid phase, moreover, the treatment of robust carbon-containing minerals by oxygen-containing oxidant is performed in the presence of reducing agents featuring donor-acceptor properties, which are manifested in the fact that at the first stage of chemical reactions the reducing agents give their electrons to oxygen-containing oxidant and, as a result, form a stronger oxidant than the initial one, in the from of short-lived radicals and intermediate oxidation products of donor-acceptor reducing agents, which are oxidants, as well.
摘要翻译：该方法称为湿法冶金工艺，它用于从可能含有天然碳或其他强韧化合物的强壮（难以加工）的矿物中回收有色金属，稀有金属和贵金属。本发明旨在提高有色金属，稀有金属和贵金属的回收率，同时降低加工成本。目的是达到目的，因为从有力矿物中回收有色金属，稀有金属和贵金属的方法，是通过含氧氧化剂处理含碳矿物质，随后从液相中萃取出贵金属化合物，此外，含有氧的氧化剂的稳定的含碳矿物在存在具有给体 - 受体特性的还原剂的情况下进行，这表现在以下事实：在化学反应的第一阶段，还原剂将其电子赋予含氧氧化剂，结果，形成比最初的氧化剂更强的氧化剂，在作为氧化剂的供体 - 受体还原剂的短寿命基团和中间氧化产物中。

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