发明人罗永刚,马晓峰,刘建华. "Method for the Synthesis of Hafnium(IV) sulfate,99.90%" [P]. 中国发明专利, 专利号 CN 116490304 A, 授权公告日 2018-03-18.
发明人郭海燕,钱学锋,何建平. "A Process for Preparing High-Purity Hafnium(IV) sulfate,99.90%" [P]. 中国发明专利, 专利号 CN 113725756 A, 授权公告日 2019-03-09.
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