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31.
公开(公告)号:US5785868A
公开(公告)日:1998-07-28
申请号:US526464
申请日:1995-09-11
申请人: Lixiong Li , Earnest F. Gloyna
发明人: Lixiong Li , Earnest F. Gloyna
CPC分类号: C02F1/025 , C02F11/086
摘要: Sodium and borate ions are separated in supercritical water by addition of dissolved CO.sub.2 to cause precipitation of carbonates and the formation of boric acid. Carbonates and boric acid are then recovered as separate products.
摘要翻译: 钠和硼酸根离子通过加入溶解的CO 2在超临界水中分离,引起碳酸盐的沉淀和硼酸的形成。 然后将碳酸盐和硼酸作为单独的产物回收。
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公开(公告)号:US5421998A
公开(公告)日:1995-06-06
申请号:US191390
申请日:1994-02-04
申请人: Lixiong Li , Earnest F. Gloyna
发明人: Lixiong Li , Earnest F. Gloyna
IPC分类号: B01D53/72 , B01D61/14 , B01D61/16 , B01J3/00 , B01J10/00 , B01J19/00 , C02F1/44 , C02F1/72 , C02F11/08
CPC分类号: C02F11/08 , B01D53/72 , B01D61/14 , B01D61/145 , B01D61/147 , B01D61/16 , B01J10/007 , B01J3/008 , C02F1/444 , C02F1/725 , B01D2311/04 , Y02P20/544
摘要: A system for effective utilization of reaction heat and in situ separation of solid and gaseous products in wet oxidation of waste and wastewater. This invention does not require special preheaters for preheating feed streams, therefore reducing the possibility of scale and char formation in the heat exchange zone. The cold feed stream is introduced into the reactor with part of the effluent which has been recycled through a high temperature pumping means to form a hot, near critical oxidant-containing mixture. The cold feed is directly heated up by the oxidant-containing mixture. The reaction mixture is separated by in situ crossflow filtration elements, including sintered material. Catalyzed reactions and sintered material gas separation are also described.
摘要翻译: 一种有效利用固体和气态产物在废水和废水湿氧化中的反应热和原位分离的系统。 本发明不需要用于预热进料流的特殊预热器,因此降低了在热交换区中的氧化皮和炭的形成的可能性。 将冷进料流引入反应器中,其中一部分流出物已经通过高温泵送装置再循环以形成热的,接近临界的含氧化剂的混合物。 冷进料由含氧化剂的混合物直接加热。 反应混合物通过原位交叉流过滤元件分离,包括烧结材料。 还描述了催化反应和烧结材料气体分离。
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