A new process that industrial nitric acid reacts with iron chippings and shavings to produce ferrous nitrate solution is presented.

• 本文介绍了采用工业硝酸酸化废旧铁屑、制取硝酸亚铁溶液,并以该溶液为主要原料研制新型铁-铬系中温变换催化剂。