Process for the production of hydrogen
    87.
    发明授权
    Process for the production of hydrogen 失效
    生产氢气的方法

    公开(公告)号:US5286473A

    公开(公告)日:1994-02-15

    申请号:US11740

    申请日:1993-02-01

    Abstract: In accordance with the invention an alkali metal is reacted with an ionizable hydrogen compound selected from the group consisting of hydrochloric acid, water or mixtures thereof to produce hydrogen and an alkali metal chloride or alkali metal hydroxide, depending upon whether hydrochloric acid or water is used to react with the alkali metal. The alkali metal chloride produced directly as a by-product of the hydrogen production step, or subsequently from the alkali metal hydroxide, is heated in the presence of aluminum to produce the alkali metal for reuse in the process and aluminum chloride. The aluminum chloride is hydrolyzed to aluminum hydroxide and hydrochloric acid. The hydrochloric acid can be recycled to produce hydrogen by reaction directly with the alkali metal or can be used to convert the alkali metal hydroxide formed during the hydrogen production step to the alkali metal chloride which can be recycled back into the process. The aluminum hydroxide thus formed can be electrolyzed to aluminum metal and water to provide a method of recovering aluminum metal from aluminum scrap which previously has not be readily recyclable.

    Abstract translation: 根据本发明,碱金属与选自盐酸,水或其混合物的可离子化氢化合物反应以产生氢和碱金属氯化物或碱金属氢氧化物,这取决于是使用盐酸还是水 与碱金属反应。 作为氢制造步骤的副产物或随后从碱金属氢氧化物中直接制备的碱金属氯化物在铝的存在下加热以产生碱金属以在该方法中再利用和氯化铝。 将氯化铝水解成氢氧化铝和盐酸。 盐酸可以通过与碱金属直接反应而再生生成氢,也可以用于将在氢气制备步骤中形成的碱金属氢氧化物转化成碱性金属氯化物,其可循环使用。 如此形成的氢氧化铝可以电解为铝金属和水,以提供从铝废料中回收铝金属的方法,其先前不易回收。

    Acid melt treatment to activate carbon for use as reductant
    89.
    发明授权
    Acid melt treatment to activate carbon for use as reductant 失效
    酸熔融处理以活化碳用作还原剂

    公开(公告)号:US4434149A

    公开(公告)日:1984-02-28

    申请号:US412926

    申请日:1982-08-30

    CPC classification number: C01F7/58 C01F7/60 Y10S423/12

    Abstract: A novel method of activating carbon is provided comprising contacting the carbon with low temperature aluminum chloride acid melts comprising at least 50 mole percent aluminum chloride and less than 50 mole percent of at least one halide salt capable of exhibiting a liquid state at atmospheric conditions, e.g., sodium chloride. Carbon activated according to the present invention is useful as a reductant of the chlorination of aluminous materials to produce anhydrous aluminum chloride.

    Abstract translation: 提供了一种活化碳的新方法,包括使碳与低温氯化铝酸熔体接触,所述低熔点氯化铝酸熔体包含至少50摩尔%氯化铝和小于50摩尔%的至少一种能够在大气条件下显示液态的卤化物盐,例如 , 氯化钠。 根据本发明的活化碳可用作铝材料的氯化还原剂以产生无水氯化铝。

    Production of anhydrous aluminum chloride composition and process for
electrolysis thereof
    90.
    发明授权
    Production of anhydrous aluminum chloride composition and process for electrolysis thereof 失效
    生产无水氯化铝组合物及其电解方法

    公开(公告)号:US4415412A

    公开(公告)日:1983-11-15

    申请号:US309655

    申请日:1981-10-08

    Abstract: A process for producing an anhydrous aluminum chloride composition from a water-based aluminous material such as a slurry of aluminum hydroxide in a multistage extraction process in which the aluminum ion is first extracted into an organic liquid containing an acidic extractant and then extracted from the organic phase into an alkali metal chloride or chlorides to form a melt containing a mixture of chlorides of alkali metal and aluminum. In the process, the organic liquid may be recycled. In addition, the process advantageously includes an electrolysis cell for producing metallic aluminum and the alkali metal chloride or chlorides may be recycled for extraction of the aluminum from the organic phase.

    Abstract translation: 一种在多级萃取方法中由水性铝材料如氢氧化铝浆料制备无水氯化铝组合物的方法,其中首先将铝离子萃取到含有酸性萃取剂的有机液体中,然后从有机物萃取 进入碱金属氯化物或氯化物以形成含有碱金属和铝的氯化物的混合物的熔体。 在此过程中,可以循环使用有机液体。 此外,该方法有利地包括用于生产金属铝的电解槽,碱金属氯化物或氯化物可循环用于从有机相中提取铝。

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