公开(公告)号：US20130193074A1

公开(公告)日：2013-08-01

申请号：US13697755

申请日：2011-05-13

申请人： Peter Voigt ,  Michael Hollitt ,  Nikolai Zontov

发明人： Peter Voigt ,  Michael Hollitt ,  Nikolai Zontov

IPC分类号： C02F1/42

CPC分类号： C02F1/42 ,  B01J39/05 ,  B01J39/07 ,  B01J49/06 ,  C02F1/048 ,  C02F1/441 ,  C02F1/66 ,  C02F5/08 ,  C02F2001/425 ,  C02F2103/06 ,  C02F2103/08 ,  C02F2103/10 ,  C02F2201/006 ,  C02F2303/16 ,  C02F2303/22

摘要： A water treatment process for substantially removing one or more ionic species from a feed water includes an ion containing aqueous solution to produce a treated water product, the process including: (a) a sorption step, including contacting a solid sorbent with said feed water to produce a solution depleted in said one or more ionic species and a loaded sorbent; (b) a concentrating step, includes concentrating an inlet stream including the ionic species depleted solution to produce a concentrate rich in said one or more ionic species and said treated water product; and (c) a desorbing step, including contacting said loaded sorbent with an aqueous desorbant including said concentrate to thereby desorb at least some of said one or more ionic species from said loaded sorbent.

摘要翻译： 用于从进料水中基本上除去一种或多种离子物质的水处理方法包括含离子的水溶液以产生经处理的水产物，该方法包括：（a）吸附步骤，包括使固体吸附剂与所述给水接触， 产生在所述一种或多种离子物质和负载的吸附剂中耗尽的溶液; （b）浓缩步骤，包括浓缩包含所述离子物质贫化溶液的入口流以产生富含所述一种或多种离子物质和所述处理水产物的浓缩物; 和（c）解吸步骤，包括使所述负载的吸附剂与包含所述浓缩物的含水脱附剂接触，从而从所述负载的吸附剂中解吸至少一些所述一种或多种离子物质。

公开(公告)号：US06616902B1

公开(公告)日：2003-09-09

申请号：US09763065

申请日：2001-04-25

申请人： Michael Hollitt ,  Stephen Grocott ,  Gerard Roe

发明人： Michael Hollitt ,  Stephen Grocott ,  Gerard Roe

IPC分类号： C22B2100

CPC分类号： C22B21/0007 ,  C01F7/0613 ,  C22B1/02

摘要： A process is disclosed for the treatment of an alumina process feedstock prior to transferring the treated feedstock to an alumina process for extracting refined alumina from the treated feedstock. The treatment process includes the following steps: (a) heating the alumina process feedstock to a temperature of 400C. to 650C. by direct contact with combustion gases, and (b) cooling the heated feedstock to a temperature at which it can be handled and fed to the alumina process. The treatment process is characterised by controlling the contact time of the solid alumina process feedstock at temperatures in the above range in step (a) to less than 5 minutes.

摘要翻译： 公开了用于处理氧化铝工艺原料的方法，然后将经处理的原料转移到氧化铝工艺中，以从经处理的原料中提取精制氧化铝。 处理过程包括以下步骤：（a）将氧化铝工艺原料加热到40℃的温度。 至650℃。 通过与燃烧气体直接接触，以及（b）将被加热的原料冷却至可以处理并加入氧化铝工艺的温度。 处理方法的特征在于将步骤（a）中的上述范围内的温度下的固体氧化铝加工原料的接触时间控制为小于5分钟。

公开(公告)号：US06582670B1

公开(公告)日：2003-06-24

申请号：US09787809

申请日：2001-06-18

申请人： Michael Hollitt ,  Stephen Grocott ,  John Peter Kisler ,  Colin John Beeby

发明人： Michael Hollitt ,  Stephen Grocott ,  John Peter Kisler ,  Colin John Beeby

IPC分类号： C22B2100

CPC分类号： C01F7/0613 ,  C22B1/02 ,  C22B21/0007

摘要： A process is provided for the treatment of an alumina process feedstock prior to transferring the treated feedstock to an alumina process for extracting refined alumina from the treated feedstock. The treatment process includes: (a) heating the alumina process feedstock to a temperature of 400° C. to 650° C. by direct contact with combustion gas, and (b) cooling the heated feedstock to a temperature at which it can be handled and fed to the alumina process. The treatment process also includes controlling the contact time of the alumina process feedstock at temperatures in step (a) to ensure decomposition of alumina trihydrate and alumina monohydrate. The process also includes: (i) limiting the maximum temperature of incoming gas to a stage of the process in which the alumina process feedstock reaches the above temperature range of 400° C. to 650° C. (which is to be considered to be the highest temperature stage, and/or (ii) limiting the heat input into the highest temperature stage by ensuring that the main thermal load associated with thermal dehydration of the alumina process feedstock is taken up in earlier stage or stages into which combustion gas, at a temperature above that of the inlet gases of the highest temperature stage, is added.

摘要翻译： 提供了一种处理氧化铝工艺原料的方法，然后将经处理的原料转移到氧化铝工艺中，以从经处理的原料中提取精制的氧化铝。 处理过程包括：（a）通过与燃烧气体直接接触将氧化铝加工原料加热至400℃至650℃的温度，和（b）将加热的原料冷却至可处理的温度 并进料到氧化铝工艺。 处理过程还包括在步骤（a）中的温度下控制氧化铝工艺原料的接触时间，以确保三水合氧化铝和一水合氧化铝的分解。 该方法还包括：（i）将进入的气体的最高温度限制在氧化铝工艺原料达到400℃至650℃的上述温度范围的过程的一个阶段（其被认为是 最高温度阶段，和/或（ii）通过确保与氧化铝工艺原料的热脱水相关联的主要热负荷被吸收在燃烧气体的早期阶段或 加入高于最高温度级的入口气体的温度。