A PRELIMINARY STUDY ON CLAY MINERALS AND REE AND Li IN CLAY ORES (ROCKS)IN HENAN PROVINCE

• 作 者: 宋云华 沈丽璞 张乃娴 彭昭瑞 郭可战
• 机 构: Institute of Geochemistry, Academia Sinica, Guiyang,Institute of Geology, Academia Sinica, Beijing,I
• 出 处: Science in China,Ser.B
• 发表日期: 1987年03期
• 关键词: minerals Carboniferous electrolyte strata sandstone sedimentary paramagnetic lim

A detailed study on the clay minerals from the working area was carried out through multiple methods,including X-ray diffraction, infrared absorption, DTA and TG, TEM and SEM, Mossbauer spectrometry,electron paramagnetic resonance and wet chemical analysis. Cookeite was discovered in the area for thefirst time. The determination of REE, Li, Nb, Ta and Sc in various ores and rocks as well as in variousclay minerals and their associations, and the cation exchange experiments (soaking experiments) carried outin various electrolyte solutions and designed for judging whether Li is in adsorption state indicate (i)clay minerals contain highest REE, and (ii) Li exists mainly in its own mineral-cookeite.

A detailed study on the clay minerals from the working area was carried out through multiple methods, including X-ray diffraction, infrared absorption, DTA and TG, TEM and SEM, Mossbauer spectrometry, electron paramagnetic resonance and wet chemical analysis. Cookeite was discovered in the area for the first time. The determination of REE, Li, Nb, Ta and Sc in various ores and rocks as well as in variousclay minerals and their associations, and the cation exchange experiments (soaking experiments) carried outin various electrolyte solutions and designed for judging whether Li is in adsorption state indicate that (i) clay minerals contain highest REE, and (ii) Li exists mainly in its own mineral-cookeite.