远航——记中国铝业GP-320kA铝电解技术成功输出印度

"两年前的今天,当飞机从昆明飞抵新德里机场时,跨出机舱第一步,呼吸着异国他乡的空气,内心充满着无比的激动和自豪,因为我是代表中国铝工业,代表祖国."2006年12月12日,中国铝业广西分公司电解铝厂320kA电解车间副主任龙琼在平果铝宾馆二楼会议室感慨地说道.     

Comparative studies on carbon origin of dawsonite between Hailaer Basin in China and Bowen-Gunnedah-Sydney basin system in Australia

Dawsonite, NaAlCO3(OH)2, is widespread as a cement, replacement and cavity filling in Hailaer Basin in China and Bowen-Gunnedah-Sydney (BGS) basin system in Australia. The origin of dawsonite is emphatically contrasted and analyzed through stable isotopic composition. Dawsonite δ13C values ranging from -4.0×10-3 to 4.1×10-3 are remarkably consistent through the BGS basin system. The calculated δ13C values of CO2 gas in isotopic equilibrium with dawsonite range from -11.3×10-3 to -4.6×10-3. These values indicate carbon of dawsonite came from inorganic CO2 gas accompanied by magmatic activity. In Hailaer Basin, the Dawsonite δ13C values ranging from -4.64×10-3 to 2.12×10-3 are also consistent. The calculated δ13C values of CO2 gas in isotopic equilibrium with dawsonite range from -11.82×10-3 to -5.11×10-3. According to the coincidence of dawsonite-bearing well and CO2 gas well with mantle source,lying along deep fracture within or adjacent to Yanshanian granite,it is concluded that CO2 gas forming dawsonite is derived from mantle related to magmatic process during the Yanshanian. A little biologic origin carbon owing to petroleum charging intervened when dawsonite formed.     

甲壳素色谱柱富集－柱前显色快速分光光度法 Ⅶ．环境水样中痕量铝的测定

研究了用甲壳素富集铬天菁Ｓ－Ａｌ的柱前显色分光光度法。在酸性条件下，甲壳素吸附铬天菁Ｓ和铝的络阴离子，其富集倍数高达１００倍。经用ＮＨ＿３·Ｈ＿２Ｏ、ＨＡｃ和丙酮依次洗脱并定容后，在５４５ｎｍ处测定显色溶液吸光度，线性范围在０～１ｍｇ／ＬＡｌ。方法快速，可以用于环境水样中痕量Ａｌ的测定。     

安微洪镇2M1型多硅白云母的发现及其意义

安徽洪镇上泥盆统－中元古界浅变质岩系中的白云母被确定为２Ｍ１多硅白云母，其结构与成分特征反映出中压变质作用。     

新星在星际^26Al问题中的作用：星际^26Al的天体源泉问题之二

介绍和评述了有关星际＾２６Ａｌ问题的各种新星模型计算结果，阐述了我们对这一问题的研究和看法，指出了现今各种新星模型在星际＾２６Ａｌ问题上存在的严重困难。