公开(公告)号：US20160024615A1

公开(公告)日：2016-01-28

申请号：US14775824

申请日：2014-03-06

Applicant: A.L.M.T. CORP.

Inventor： Takeshi ITAKURA ,  Akihiko IKEGAYA ,  Yoshiharu YAMAMOTO

IPC: C22B34/36 ,  C22B7/00

CPC classification number: C22B34/36 ,  C01G41/00 ,  C22B7/00 ,  C22B7/001 ,  Y02P10/214 ,  Y02P10/234

Abstract: A method of producing sodium tungstate of this invention including allowing cemented carbide scrap containing tungsten to react with a molten salt containing sodium sulfate and having added thereto a metal oxide, to thereby obtain sodium tungstate.

Abstract translation: 本发明的钨酸钠的制造方法，其特征在于，含有含有钨的硬质合金废料与含有硫酸钠的熔融盐反应并加入金属氧化物，得到钨酸钠。