ELECTROCHEMICAL PROCESS FOR THE RECOVERY OF METALLIC IRON AND CHLORINE VALUES FROM IRON-RICH METAL CHLORIDE WASTES
    8.
    发明申请
    ELECTROCHEMICAL PROCESS FOR THE RECOVERY OF METALLIC IRON AND CHLORINE VALUES FROM IRON-RICH METAL CHLORIDE WASTES 审中-公开
    从金属氯化物废物中回收金属铁和氯离子值的电化学工艺

    公开(公告)号:US20100044243A1

    公开(公告)日:2010-02-25

    申请号:US12442367

    申请日:2007-01-09

    CPC classification number: C25C1/06 C25B1/26

    Abstract: An electrochemical process for the concurrent recovery of iron metal and chlorine gas from an iron-rich metal chloride solution, comprising electrolysing the iron-rich metal chloride solution in an electrolyser comprising a cathodic compartment equipped with a cathode having a hydrogen overpotential higher than that of iron and containing a catholyte having a pH below about 2, an anodic compartment equipped with an anode and containing an anolyte, and a separator allowing for anion passage, the electrolysing step comprising circulating the iron-rich metal chloride solution in a non-anodic compartment of the electrolyser, thereby causing iron to be electrodeposited at the cathode and chlorine gas to evolve at the anode, and leaving an iron-depleted solution. The iron-rich metal chloride solution may originate from carbo-chlorination wastes, spent acid leaching liquors or pickling liquors.

    Abstract translation: 一种用于从富铁金属氯化物溶液中同时回收铁金属和氯气的电化学方法,包括在电解槽中电解富铁金属氯化物溶液,该电解槽包括阴极室,该阴极室装备有具有高于 铁,并含有pH值低于约2的阴极电解液,装有阳极并含有阳极电解液的阳极室和允许阴离子通过的隔膜,所述电解步骤包括将富铁金属氯化物溶液循环在非阳极室 的电解液,从而使铁电解沉积在阴极,氯气在阳极放电,并留下一种贫铁溶液。 富含铁的金属氯化物溶液可来自碳氯化废物,废酸浸液或酸洗液。

    Method for producing oxygen from lunar materials
    9.
    发明授权
    Method for producing oxygen from lunar materials 失效
    从月球材料生产氧气的方法

    公开(公告)号:US5227032A

    公开(公告)日:1993-07-13

    申请号:US764581

    申请日:1991-09-24

    CPC classification number: C22B34/125 C21B15/00 C25B1/02 C25C1/06 Y02P10/138

    Abstract: Methods for producing oxygen from metal oxides bearing minerals, e.g. ilmenite, the process including producing a slurry of the minerals and hot sulfuric acid, the acid and minerals reacting to form sulfates of the metal, adding water to the slurry to dissolve the minerals into an aqueous solution, separating the first aqueous solution from unreacted minerals from the slurry, and electrolyzing the aqueous solution to produce the metal and oxygen; and in one aspect, a process for producing a slurry with ferrous sulfate therein by reacting ilmenite and hot sulfuric acid, adding water to the slurry to dissolve the ferrous sulfate into an aqueous solution, separating the aqueous solution from the slurry, and electrolyzing the aqueous solution to produce iron and oxygen. In one aspect, these process are suitable for producing oxygen in outer space, e.g. on the moon or Mars.

    Abstract translation: 从含有矿物的金属氧化物生产氧的方法 钛铁矿,包括生产矿物质和热硫酸的浆料,酸和矿物质反应形成金属的硫酸盐,向浆料中加入水以将矿物溶解成水溶液,将第一水溶液与未反应的矿物质分离 从浆液中电解水溶液以产生金属和氧气; 在一个方面,通过使钛铁矿和热硫酸反应,通过使钛铁矿和热硫酸反应来制备其中的硫酸亚铁浆料的方法,向浆料中加入水以将硫酸亚铁溶解到水溶液中,将水溶液与浆料分离, 解决方案生产铁和氧。 在一个方面,这些方法适用于在外层空间中产生氧,例如。 在月球或火星上。

Patent Agency Ranking