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公开(公告)号:KR1019960005492B1
公开(公告)日:1996-04-25
申请号:KR1019920023183
申请日:1992-12-03
Applicant: 한국과학기술연구원
IPC: B01J23/36
Abstract: Cr(NO2)39H2O or (NH4)2Cr2O7 is heated up from ambient temp. to 350-500 deg.C in 30 minutes to 4 hours. And then at 450-500 deg.C calcination temp. is kept for 30 minutes to 7 hours to prepare Cr2O3 catalyst for chlorine production. This is a direct calcination method without chromate dissolution, reaction, precipitation, filtration, washing and drying.
Abstract translation: Cr(NO2)39H2O或(NH4)2Cr2O7从环境温度加热。 在30分钟至4小时内至350-500摄氏度。 然后在450-500℃煅烧温度。 保持30分钟至7小时以制备用于氯生产的Cr 2 O 3催化剂。 这是一种没有铬酸盐溶解,反应,沉淀,过滤,洗涤和干燥的直接煅烧方法。
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