公开(公告)号：US06446812B1

公开(公告)日：2002-09-10

申请号：US09443589

申请日：1999-11-19

申请人： Charles N. Sturdivant ,  George Walter Luxbacher ,  Mohan Singh Saran ,  Kenneth Raburn Price

发明人： Charles N. Sturdivant ,  George Walter Luxbacher ,  Mohan Singh Saran ,  Kenneth Raburn Price

IPC分类号： B07B146

CPC分类号： B01D9/004 ,  C01B25/00

摘要： Disclosed is a separator for separating a meltable solid from a mixture with other solids. The separator has a tank for holding a fluid; a container at least partially inside the tank, made at least in part of a screen through which the fluid can pass and melted solids can flow, but through which the unmelted solid material will not flow; and a heater for heating the fluid above the melting point of the meltable solids. Also disclosed is a method of separating a meltable solid from a mixture with other solids. The mixture of solids is placed in the container of the separator and the fluid is heated to a temperature above the melting point of the meltable solid, whereby the meltable solid flows through the screen out of the container, while the other solids remain within the container.

摘要翻译： 公开了一种用于将可熔固体与其它固体的混合物分离的分离器。 分离器具有用于保持流体的罐; 至少部分地在罐内部的容器制成至少部分通过流体可以通过的筛网，熔化的固体可以流动，但是未熔化的固体材料将不通过该容器流动; 以及用于将流体加热到可熔固体的熔点之上的加热器。 还公开了将可熔固体与其它固体的混合物分离的方法。 将固体混合物放置在分离器的容器中，并将流体加热到高于可熔融固体熔点的温度，由此可熔融固体从容器中流过筛网，而其它固体留在容器内 。

公开(公告)号：US06955796B2

公开(公告)日：2005-10-18

申请号：US10249995

申请日：2003-05-27

申请人： Mohan Singh Saran ,  George Walter Luxbacher

发明人： Mohan Singh Saran ,  George Walter Luxbacher

IPC分类号： B09C1/02 ,  C01B25/01 ,  C01B25/02 ,  C02F1/52 ,  C02F1/56 ,  C02F9/00 ,  C02F11/12 ,  C22B3/44 ,  C22B7/00 ,  C01B25/04

CPC分类号： B09C1/02 ,  C01B25/01 ,  C01B25/02 ,  C02F1/5281 ,  C02F1/56 ,  C02F9/00 ,  C02F11/121 ,  C02F2101/105 ,  C02F2103/10 ,  C22B3/44 ,  C22B7/006 ,  Y02P10/214 ,  Y02P10/23 ,  Y02P10/234 ,  Y10S210/908

摘要： A process is disclosed for recovering elemental phosphorus from an aqueous sludge and converting the residue into non-hazardous waste. The sludge is separated into (1) a slurry of water containing suspended phosphorus and dirt particles and (2) coarse solids. A flocculating agent is added to the slurry to agglomerate the suspended phosphorus and dirt particles, which are recovered from the water and are heated to melt elemental phosphorus particles. A coalescing agent is added to coalesce the melted elemental phosphorus, which is separated from the dirt particles. The coarse solids are mixed with hot water to melt the phosphorus sludge, which is separated from inert solids. The solids are heated to burn any residual elemental phosphorus. The separated molten phosphorus sludge is stirred with a solution of chromic acid to recover the phosphorus as a separate phase. A reducing agent is added to the remaining water and solids to reduce the Cr+6 to Cr+3. Finally, an alkali is added to the water and solids to react the residual phosphorus and form phosphorous compounds. The reaction mass is filtered and the filter cake can be placed in a landfill as a non-hazardous waste.

摘要翻译： 公开了从含水污泥中回收元素磷并将残余物转化为无害废物的方法。 污泥被分离成（1）含有悬浮磷和污垢颗粒的水的浆液和（2）粗固体。 将絮凝剂加入到浆料中以使悬浮的磷和污垢颗粒聚集，这些颗粒从水中回收并被加热以熔化元素磷颗粒。 加入聚结剂以使​​熔融的元素磷与污垢颗粒分离。 将粗固体与热水混合以熔化与惰性固体分离的磷污泥。 将固体加热以烧制任何残留的元素磷。 将分离的熔融磷污泥与铬酸溶液一起搅拌以回收磷作为分离相。 向剩余的水和固体中加入还原剂以将Cr + +6降低至Cr + 3。 最后，向水和固体中加入碱以使残余的磷反应形成磷化合物。 将反应物质过滤并将滤饼作为无害废物放置在垃圾填埋场中。