公开(公告)号：US10060009B2

公开(公告)日：2018-08-28

申请号：US15320697

申请日：2015-09-17

Applicant: YUNNAN MINZU UNIVERSITY

Inventor： Guo Chen ,  Jin Chen ,  Jinhui Peng ,  Libo Zhang ,  Shenghui Guo ,  Junwen Zhou

IPC: C22B34/00 ,  C22B34/12 ,  B09B3/00 ,  C01G23/08

CPC classification number: C22B34/124 ,  B09B3/0083 ,  C01G23/003 ,  C01G23/005 ,  C01G23/08 ,  C01P2006/80 ,  C22B7/04 ,  C22B34/1209 ,  C22B34/1222 ,  C22B34/1227 ,  C22B34/1245 ,  C22B34/125 ,  C22B34/1259 ,  Y02P10/212

Abstract: Provided is a method for preparing rutile from acid-soluble titanium slag, including: grinding acid-soluble titanium slag; adding a sodium carbonate modifier, and performing microwave irradiation treatment in a microwave device; adding an ammonium bifluoride additive; and performing acid purification and calcination to obtain rutile. By means of a microwave heating mode, the equipment investment needed by the method is low, and the energy consumption is low. The purity of artificial rutile is more than 91%, byproducts are fewer, and the environmental pollution is low.