公开(公告)号：US06251352B1

公开(公告)日：2001-06-26

申请号：US09371284

申请日：1999-08-10

申请人： Mohan S. Saran ,  James R. Brooks ,  David C. Potts

发明人： Mohan S. Saran ,  James R. Brooks ,  David C. Potts

IPC分类号： C01B2501

摘要： Disclosed is a method of recovering elemental phosphorus from a sludge that contains water, dirt, and elemental phosphorus. In the first step, the sludge is melted. A mixture is formed of the melted sludge and about 0.5 to about 3 wt % of an oxidizing agent, based on the weight of said elemental phosphorus in the sludge, and about 75 to about 400 wt % water, based on the weight of the sludge. The mixture is stirred until a continuous elemental phosphorus phase forms. The purified phosphorus phase is separated from the mixture.

公开(公告)号：US06451276B1

公开(公告)日：2002-09-17

申请号：US09371284

申请日：1999-08-10

申请人： Mohan S. Saran ,  James R. Brooks ,  David C. Potts

发明人： Mohan S. Saran ,  James R. Brooks ,  David C. Potts

IPC分类号： C01B2501

CPC分类号： C01B25/027 ,  Y10S210/906

摘要： Disclosed is a method of recovering elemental phosphorus from a sludge that contains water, dirt, and elemental phosphorus. In the first step, the sludge is melted. A mixture is formed of the melted sludge and about 0.5 to about 5 wt % of an oxidizing agent, based on the weight of elemental phosphorus in the sludge, and about 75 to about 580 wt % water, based on the weight of the sludge. The mixture is stirred until a continuous elemental phosphorus phase forms. The purified phosphorus phase is separated from the mixture.

摘要翻译： 公开了从含有水，污物和元素磷的污泥中回收元素磷的方法。 在第一步，污泥被熔化。 基于污泥的重量，由熔融污泥和约0.5至约5重量％的氧化剂形成混合物，基于污泥中元素磷的重量和约75至约580重量％的水。 将混合物搅拌直到形成连续的元素磷相。 将纯化的磷相与混合物分离。