公开(公告)号：US4663145A

公开(公告)日：1987-05-05

申请号：US774420

申请日：1985-09-10

申请人： Peter J. T. Van den Berk ,  Berend Knol ,  Franciscus J. M. Dubois

发明人： Peter J. T. Van den Berk ,  Berend Knol ,  Franciscus J. M. Dubois

IPC分类号： B01J8/12 ,  C01F7/30 ,  C01G49/06 ,  C01G53/00 ,  C23F1/46 ,  C23G1/36 ,  C01B7/18 ,  B01J8/08 ,  C01B17/90 ,  F27B15/00

CPC分类号： C23G1/36 ,  B01J8/12 ,  C01F7/30 ,  C01G49/06 ,  C01G53/00 ,  C01G53/04 ,  Y10S159/29 ,  Y10S423/01 ,  Y10S423/02

摘要： A device for and method of working up etching and pickling liquids consisting of a vertical furnace having one or more vertical reaction spaces through which balls move at a maximum packing density.The furnace has a temperature gradient from the bottom (high) to the top (low). The reaction space and the balls consist of a material which is inert with respect to the liquid to be worked up. The liquid is introduced into the upper side of the furnace so that a film is formed in the heated surface of the balls. The salt dissolved in the liquid decomposes pyrolytically. The metal oxide is deposited on the surface of the balls and is removed therefrom after leaving the reaction space. The acid residue vapours are drained at the top and recovered in a separate absorber to the original pickling or etching acid.

摘要翻译： 一种处理由具有一个或多个垂直反应空间的垂直炉组成的蚀刻和酸洗液体的装置和方法，球以最大填充密度移动。 炉具有从底部（高）到顶部（低）的温度梯度。 反应空间和球由相对于被处理液体是惰性的材料组成。 将液体引入炉的上侧，使得在滚珠的加热表面中形成膜。 溶解在液体中的盐分解热分解。 金属氧化物沉积在球的表面上，并在离开反应空间之后被除去。 酸残留蒸气在顶部排出并在单独的吸收器中回收到原酸洗或酸蚀酸。