末端炔烃与亚铜离子反应的实验研究

研究了乙炔亚铜的电子吸收光谱，探讨了末端炔烃和亚酮离子的反应条件，生成物的稳定性和炔亚铜的组成，研究结果表明，末端炔烃的活泼性与介质中氨的含量密切相关，在ｃ（ＮＨ３．Ｈ２Ｏ）／ｃ（Ｃｕ＾＋）摩尔比为２７０～９００的范围内，反应活性最大，易与亚铜离子反应生成炔亚铅，红色乙炔亚铜的组成为ＣｕＣ≡ＣＣｕ，它在含有羟胺的氨性介质中很稳定，不受空气中氧的影响，这些结构为利用生成炔亚铜的以应来鉴定混合气中微笑     

铜金矿综合提取金、银等贵重金属新工艺研究

采用三氯化铁浸出、隔膜电解提铜、副产高纯铁、从浸铜渣中提取金和银，回收硫磺等工艺，对铜金矿综合提取金、银等贵重金属，投资少，生产成本低，经济效益显著。     

攀钢炼铁厂5#热矿振动筛的改进

介绍了攀钢炼铁厂5#热矿振动筛存在的缺陷和不足，以及改进内容和改进效果。     

Cu（Ⅱ） effect on the conformation of regenerated silk fibroin in dilute aqueous solution

Much attention has been paid to the natural mechanism of silkworm spinning due to the impressive mechanical properties of the natural fibers. In this work, we studied the effect of Cu（Ⅱ） ions on the secondary structure of Bombyx mori regenerated silk fibroin （SF） in dilute solution by circular dichroism （CD）. The results indicate that a given amount of Cu（Ⅱ） induces the SF conformational transition from random coil to β-sheet, however, further addition of Cu（Ⅱ） is unfavorable for this conversion. Meanwhile, the conformational changes induced by Cu（Ⅱ） follow a nucleation-dependent aggregation mechanism, which is similar to that found in Prion protein （PrP） denaturation and Aβ-peptide aggregations, leading to the neurodegenerative disease. This work would help one understand further the natural spinning process of silkworm. Additionally, it would be significant for the study of the nervous system diseases, because silk fibroin, extracted in large amounts from Bombyx mori silkworm gland, could be a proper model to study PrP denaturation and Aβ-peptide aggregations.     

N—亚（2—羟基萘甲基）氨基乙酸Schiff碱铜（Ⅱ）配合物的合成

通过２－羟基－１－萘醛和氨基乙酸形成的Ｓｃｈｉｆｆ碱与二价铜了合成新的配合物，并经元素分析、摩尔电导和红外光谱与电子光谱研究面是表征。其Ｃｕ原子形成四配位配合物，分子内中心原子分别形成亚胺的Ｎ→Ｃｕ，羟基的Ｏ－Ｃｕ，酚氧原子的Ｏ－Ｃｕ以及水的配位Ｏ→Ｃｕ。