Alkaline Earth Oxides For Green Processes For metals and other Material
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    发明申请
    Alkaline Earth Oxides For Green Processes For metals and other Material 审中-公开
    用于绿色工艺的碱性氧化物用于金属和其他材料

    公开(公告)号:US20140305346A1

    公开(公告)日:2014-10-16

    申请号:US13862623

    申请日:2013-04-15

    摘要: The present invention teaches the method to use the sulfate or sulfites based raw materials, such as magnesium, calcium and other alkative earth sulfates or sulfites to produce the respective oxides in a carbon five basis, by using sulfur as the fuel and the reductant. The invention also utilizes renewable energy such as solar thermal or green electricity wherever possible. This approach provides a green process, of ultra-low carbon dioxide emission, for the production of magnesium, other alkaline earth metals and other material which requires alkaline earth oxide, such as in the production of carbon free Portland cement requiring lime. The invention also provides a useful outlet for waste streams leading to sustainable processes. The cost of the production of these precursors are kept low by concurrently producing a saleable by-product—sulfuric-acid.

    摘要翻译: 本发明教导了使用硫酸盐或亚硫酸盐基原料如镁,钙和其它碱土金属硫酸盐或亚硫酸盐的方法,通过使用硫作为燃料和还原剂来生产碳五种各自的氧化物。 本发明尽可能地利用可再生能源,例如太阳能热能或绿色电力。 这种方法提供了一种超低二氧化碳排放的绿色过程,用于生产需要碱土金属氧化物的镁,其他碱土金属和其它材料,例如生产需要石灰的无碳硅酸盐水泥。 本发明还为导致可持续过程的废物流提供了有用的出口。 通过同时生产可销售的副产物 - 硫酸,这些前体的生产成本保持较低。