Aqueous recovery of cobalt or cobalt and manganese from solution also
containing oxygenated aromatic compounds
    31.
    发明授权
    Aqueous recovery of cobalt or cobalt and manganese from solution also containing oxygenated aromatic compounds 失效
    从还含有氧化芳族化合物的溶液中回收钴或钴和锰

    公开(公告)号:US4680098A

    公开(公告)日:1987-07-14

    申请号:US850534

    申请日:1986-04-11

    申请人: Yuehsiung Chang

    发明人: Yuehsiung Chang

    摘要: Cobalt and manganese oxidation catalyst metals are recovered from trimellitic anhydride process residue by extracting the residue with water and using the extract solution as a diluting solution in an electrodialyzer the separation stack of which comprises an anode channel and at least one three channel repeating unit wherein each repeating unit having in sequence channels A, B, and C. In this separation stack the anode channel is formed by an anode and a cation permeation membrane, Channel A is formed by two cation permeation membranes, Channel B is formed by a cation permeation membrane and an anion permeation membrane, and Channel C is formed by an anion permeation membrane and either a cation permeation membrane or a cathode. A suitable anolyte flows through the anode channel. The diluting solution is fed to the A channels. An electrolyte is fed to the B channels. A suitable catholyte is fed to the C channels. Concentrating solution of cobalt and manganese substantially free of metal and organic contaminants is effluent from the B channels.The metals cobalt or cobalt and manganese can be recovered as an aqueous solution of acetate salts from an aqueous solution containing aromatic compounds including benzoic acid and one or more of the toluic acid, phthalic acid, and carboxybenzaldehyde isomers by electrodialysis using acetic acid and the catholyte, water as the metal acetate solvent, and the aqueous solution acid oxygen-containing aromatic compounds, and the metal ions as a more efficient than precipitating the metals from such solution as their carbonates and dissolving the carbonate precipitate in acetic acid.

    摘要翻译: 钴和锰氧化催化剂金属由偏苯三酸酐工艺残渣中回收,通过用水萃取残余物,并使用提取液作为电渗析器中的稀释溶液,其分离层包括阳极通道和至少一个三通道重复单元,其中每个 重复单元具有顺序通道A,B和C.在该分离堆中,阳极通道由阳极和阳离子渗透膜形成,通道A由两个阳离子渗透膜形成,通道B由阳离子渗透膜 和阴离子渗透膜,通道C由阴离子渗透膜和阳离子渗透膜或阴极形成。 合适的阳极电解液流过阳极通道。 稀释溶液送入A通道。 电解质被供给到B通道。 将合适的阴极电解液送入C通道。 基本不含金属和有机污染物的钴和锰的浓缩溶液是来自B通道的流出物。 金属钴或钴和锰可以通过使用乙酸和阴极电解液的电渗析从包含苯甲酸和一种或多种甲苯甲酸,邻苯二甲酸和羧基苯甲醛异构体的芳族化合物的水溶液中回收作为乙酸盐的水溶液 ,作为金属乙酸酯溶剂的水,以及含水溶液酸性含氧芳香族化合物,以及金属离子比从其碳酸盐溶液中沉淀金属更有效,并将碳酸盐沉淀物溶解在乙酸中。

    Process for the treatment of complex manganese ores, such as marine
nodules
    32.
    发明授权
    Process for the treatment of complex manganese ores, such as marine nodules 失效
    处理复杂锰矿石的方法,如海洋结节

    公开(公告)号:US4620964A

    公开(公告)日:1986-11-04

    申请号:US742003

    申请日:1985-06-06

    摘要: A process for the treatment of a complex manganese ore, wherein it comprises the following stages:(a) crushing the ore,(b) subdividing the crushed ore into a first part and a second part,(c) preparing the first pulp from the first part of the crushed ore,(d) reacting the first pulp with a reducing agent to obtain a manganous sulphate solution,(e) separating the liquid phase constituted by the thus obtained manganous sulphate solution from the solid phase of the thus treated first pulp,(f) preparing a second pulp from the second part of the crushed ore,(g) subjecting the second pulp to a solubilization treatment of the nickel, copper and cobalt by reacting it hot with sulphuric acid and the manganous sulphate solution obtained in stage (e),(h) separating the liquid phase and the solid phase of the thus treated second pulp, and(i) recovering the nickel, copper and cobalt from the liquid phase separated in stage (h).

    摘要翻译: 一种处理复杂锰矿石的方法,其中包括以下阶段:(a)粉碎矿石,(b)将粉碎的矿石细分成第一部分和第二部分,(c)从第一部分和第二部分制备第一个纸浆 (d)使第一纸浆与还原剂反应,得到硫酸锰溶液,(e)将如此得到的硫酸锰溶液所构成的液相与经处理的第一纸浆的固相分离 (f)从粉碎矿石的第二部分制备第二纸浆,(g)使第二纸浆通过热与硫酸反应并在阶段中获得的硫酸锰溶液对第二纸浆进行溶解处理, (e),(h)分离如此处理的第二纸浆的液相和固相,和(i)从阶段(h)中分离的液相中回收镍,铜和钴。

    Processes relating to the extraction of metals from laterites and ocean
manganese nodules
    33.
    发明授权
    Processes relating to the extraction of metals from laterites and ocean manganese nodules 失效
    与红土和海洋锰结核提取金属有关的过程

    公开(公告)号:US4545816A

    公开(公告)日:1985-10-08

    申请号:US616841

    申请日:1984-06-04

    申请人: Alkis S. Rappas

    发明人: Alkis S. Rappas

    摘要: The selective leaching of metal ions from various iron oxide and manganese oxide containing ores employs intermediary solutions. The leaching processes are based upon a redox acid leach step employing stabilized cuprous ions and, in one instance, a combination thereof with ferrous ions. Leaching is conducted at low temperatures, up to about 90.degree. C. and low pressures, up to about 1.5 MPa and at a pH of about 1.5 to 2.5. Nickel and cobalt recoveries from the ores, employing these processes, will usually equal or exceed 90 percent. The intermediary solutions comprise stabilized acidic cuprous ions Cu.sup.+ L wherein L is a stabilizing ligand selected from the group consisting of CO, XRCN and Cl.sup.-, X being --H or --OH and R being aliphatic having from one to about four carbon atoms. In at least one process, ferrous ions are introduced for a separate leaching step. Additional steps include regeneration of the lixiviant cuprous ion solutions and removing a portion of the copper ions from the copper ion solution before or after the step of regenerating. Several processes for the regeneration are possible employing quinolic compounds, H.sub.2, CO or syngas as reductants.

    摘要翻译: 来自各种氧化铁和含氧化锰的矿石的金属离子的选择性浸出采用中间解决方案。 浸出过程基于使用稳定的亚铜离子的氧化还原浸出步骤,在一种情况下,其与亚铁离子的组合。 浸出在低至约90℃,低压,高达约1.5MPa,pH约1.5至2.5的低温下进行。 使用这些工艺的矿石的镍和钴回收率通常会等于或超过90%。 中间溶液包含稳定的酸性亚铜离子Cu + L,其中L是选自CO,XRCN和Cl-的稳定配体,X是-H或-OH,R是具有1至约4个碳原子的脂族基。 在至少一个方法中,引入亚铁离子用于单独的浸出步骤。 另外的步骤包括在再生步骤之前或之后再生氯化锂离子溶液并从铜离子溶液中除去一部分铜离子。 使用喹啉化合物,H 2,CO或合成气作为还原剂的几种再生方法是可能的。

    Manufacture of manganous sulfate solutions
    34.
    发明授权
    Manufacture of manganous sulfate solutions 失效
    制造硫酸锰溶液

    公开(公告)号:US4489043A

    公开(公告)日:1984-12-18

    申请号:US577996

    申请日:1984-02-08

    摘要: Manganese sulfate solutions of improved purity are prepared by digesting a combination of a reduced manganese ore with an aqueous acid solution in the presence of a particulate potassium-iron salt byproduct. The salt byproduct is the salt byproduct formed, in situ, by reaction of potassium impurity with ferric ion during digestion of a combination of a reduced manganese ore and an aqueous acid solution.

    摘要翻译: 在钾 - 铁盐副产物的存在下,通过消化还原锰矿与酸水溶液的组合来制备提高纯度的硫酸锰溶液。 盐副产物是在消除还原锰矿和酸性水溶液的组合的过程中通过钾杂质与铁离子的反应原位形成的盐副产物。

    Hydrometallurgical process for the recovery of valuable metals from
sulfidic, silicate-containing raw materials
    35.
    发明授权
    Hydrometallurgical process for the recovery of valuable metals from sulfidic, silicate-containing raw materials 失效
    用于从硫化物,含硅酸盐的原料中回收有价金属的湿法冶金工艺

    公开(公告)号:US4483827A

    公开(公告)日:1984-11-20

    申请号:US396461

    申请日:1982-07-08

    申请人: Seppo O. Heimala

    发明人: Seppo O. Heimala

    摘要: The invention relates to a process for the recovery of valuable metals from sulfidic, silicate-containing raw materials by slurrying the raw material in water, by subjecting the slurry to a selective leach under atmospheric conditions and in an acidic milieu, and by separating the valuable-metal containing solution from the solid leach residue.When the leach is carried out by introducing an oxygen-bearing gas into the slurry which contains finely-divided sulfide and carbon, the acidity of the slurry drops in a controlled manner so that a high efficiency of oxygen, and a high selectivity of the leach as regards valuable metals, are obtained. Owing to the presence of carbon the oxygen is reduced very easily and so oxygen efficiency is high and the rate of dissolving of the valuable metals increases in the slurry mixture.

    摘要翻译: 本发明涉及通过在大气条件下和在酸性环境中对浆料进行选择性浸出,并通过将有价值的含硅酸盐原料分离出来的有价金属从含硫酸盐的含硅原料中回收有价金属的方法 含有固体浸出残渣的金属溶液。 当通过将含氧气体引入含有细碎硫化物和碳的浆料中进行浸出时,浆料的酸度以受控的方式滴落,使得氧气的高效率和浸出的高选择性 关于有价值的金属。 由于碳的存在,氧气被非常容易地还原,因此氧气效率高,并且有价值金属的溶解速率在浆料混合物中增加。

    Process for obtaining manganese- and silicon-based alloys by
silico-thermal means in a ladle
    36.
    发明授权
    Process for obtaining manganese- and silicon-based alloys by silico-thermal means in a ladle 失效
    在钢包中通过电热法获得锰和硅基合金的方法

    公开(公告)号:US4363657A

    公开(公告)日:1982-12-14

    申请号:US253521

    申请日:1981-03-06

    CPC分类号: C22B5/04 C22C28/00

    摘要: The invention relates to a process for obtaining manganese- and silicon-based alloys by silico-thermal means in a ladle.An oxidized liquid slag, usually originating from earlier metallurgical operations and still containing from 10 to 40% of manganese in the form of MnO is treated by a silicon-based reducing alloy (silicon content of at least 60% and preferably at least 70%) with agitation.A slag which is substantially exhausted of manganese and a metal containing more than 60% and generally more than 70% of manganese and from 5 to 40% and preferably from 10 to 35% of silicon are thus obtained.

    摘要翻译: PCT No.PCT / FR80 / 00121 Sec。 371日期1981年3月6日 102(e)日期1981年3月6日PCT提交1980年7月15日PCT公布。 公开号WO81 / 00262 日期:1981年2月5日。本发明涉及一种在钢包中通过硅 - 热装置获得锰和硅基合金的方法。 通常来自早期冶金操作并仍含有10〜40%MnO形式的锰的氧化液体渣通过硅系还原合金(硅含量至少为60%,优选至少为70%)进行处理, 激动地 因此,获得了基本上耗尽锰的金属和含有超过60%,通常大于70%的锰和5至40%,优选10至35%的硅的金属。