Title: Process for preparing mixed dyes of Fe-Cr series
Application Number: 88108464 Application Date: 1988.12.06
Publication Number: 1043327 Publication Date: 1990.06.27
Approval Pub. Date: Granted Pub. Date: 1993.03.31
International Classifi-cation: C09C1/62
Applicant(s) Name: Tianjin Chemical Inst. Ministry of Chemical Indust Address:
Inventor(s) Name: Ji Liekong
Attorney & Agent: SHI YIJUN PAN ZHONGLIANG
Abstract:
     In this invention, waste Fe-Cr catalyst in ammonia synthesizing industry is used as raw material. Going through calcinating the waste catalyst, along with alkali or MgO, or directly calcinating it, immersion, wet grinding, filter, washing and drying, a Fe-Cr series of mixed antirust dye is obtained, which can reach the use standard about antirust priming paint.
Time: 4
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