公开(公告)号：US20130108526A1

公开(公告)日：2013-05-02

申请号：US13665166

申请日：2012-10-31

Applicant: BASF SE

Inventor： Christian Walsdorff ,  Markus Schubert ,  Stefan Altwasser ,  Steffen Buch

IPC: C22B7/00 ,  C21B3/00 ,  C22B34/34 ,  C22B59/00

CPC classification number: C22B7/009 ,  C21B3/00 ,  C22B26/00 ,  C22B34/345 ,  C22B59/00 ,  Y02P10/214 ,  Y02P10/23 ,  Y02P10/234

Abstract: A method for materials recovery from a catalyst comprising oxides of iron, cerium, molybdenum, and potassium, in which potassium and molybdenum are removed by treating the catalyst with an aqueous leachant, giving an aqueous solution S1 comprising potassium and molybdenum, and a solid residue R1 comprising cerium oxide and iron oxide, and recovering cerium in the form of a solid comprising a cerium(III) compound or cerium(IV) oxide from the solid residue R1.

Abstract translation: 从包含铁，铈，钼和钾的氧化物的催化剂中回收材料的方法，其中通过用含水浸出剂处理催化剂除去钾和钼，得到包含钾和钼的水溶液S1和固体残余物 R1包含氧化铈和氧化铁，并从固体残渣R1中回收包含铈（III）化合物或氧化铈（IV））的固体形式的铈。