A novel process of extraction and separation of RE and Mn from Panxi rare earth mud
来源期刊：中国有色金属学报(英文版)2002年第1期
论文作者：朱国才 池汝安 田君
文章页码：164 - 168
Key words：rare earth mud;extraction and separation;Mn and RE
Abstract: A novel process to extract and separate rare earth (RE) and manganese (Mn) from Panxi rare earth mud was developed. The process involves roasting the mud at 480℃ with NH4Cl as chlorinating agent, and leaching the calcine with hot water to obtain a rare earth chloride solution. After the solution was further purified,HD(DIBM)P (P507) was applied as extractant to separate RE and Mn.By seven stages of fractional extraction,the RECl3 and MnCl2 solutions with 99.8% purity were obtained.Finally,the purified RECl3 and MnCl2 solution were precipitated by NH4HCO3 to obtain a crystal RE2(CO3)3 and MnCO3 products respectively.
