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一、本实验曾将漂白亚硫酸木浆,药棉及漂白布处理,制成四种色层用纤维素。均能自钍及希土硝酸盐溶液中分离出钍盐,其中以用经氢氧化钠及硝酸处理过的木浆纤维素粉结果最好。用“色层布”可简化装管技术。本法分离出的钍盐很纯。二、用纤维素Ⅱ,硝酸-乙醚为洗提液进行研究。结果找出,洗提液中硝酸浓度及温度对分离影响甚大。致谢:本工作得锺焕邦先生热忱的关怀,指导和鼓励。光谱定性工作均系姚克敏同志所作。化学定量系郭恒富同志所作。对以上各位谨致衷心谢意。
First, this experiment has bleached sulfite pulp, cotton wool and bleached cloth treatment, made into four color layer cellulose. Both of them can separate the yttrium salt from the nitric acid solution of rare earth and rare earth. Among them, the cellulose pulp powder treated with sodium hydroxide and nitric acid has the best results. Using “color cloth” can simplify the tube filling technology. The yttrium salt separated by this method is very pure. Second, using cellulose II, nitric acid - ether as eluent for research. As a result, it was found that the concentration of nitric acid in the eluent and the temperature have a great influence on the separation. Acknowledgments: This work has the enthusiasm, guidance and encouragement of Mr. Qiu Huanbang. The spectral qualitative work was made by Comrade Yao Kemin. Chemical quantification department made by Comrade Guo Hengfu. Thank you very much to all of you.