The solvent extraction of trace gold(Ⅰ) from alkaline cyanide solution by CTAB/TBP system was investigated using a new extraction equipment.The results demonstrated that the addition of CTAB in aqueous phase could en...The solvent extraction of trace gold(Ⅰ) from alkaline cyanide solution by CTAB/TBP system was investigated using a new extraction equipment.The results demonstrated that the addition of CTAB in aqueous phase could enhance the gold(Ⅰ) extraction rate of TBP sharply.The extraction of 20L alkaline cyanide solutions in two extraction columns showed that the extraction percentage was more than 91%,and the gold mass concentration of raffinate was less than 0.8ppm in the all process of extraction.Gold(Ⅰ) Stripping from loaded organic phase by KSCN was also studied.Almost all of gold in loaded CTAB/TBP could be stripped into aqueous phase by 3mol/L KSCN solutions for three times stripping.展开更多
本文通过回顾汽车电子技术的应用和发展历程,简要的介绍了国外汽车电子的技术水平及研究方向,同时也介绍了我国汽车电子行业潜在的巨大商机以及面临国外技术垄断的严峻考验,进而提出了振兴汽车工业,实现中国汽车电子产业化的几点建议。...本文通过回顾汽车电子技术的应用和发展历程,简要的介绍了国外汽车电子的技术水平及研究方向,同时也介绍了我国汽车电子行业潜在的巨大商机以及面临国外技术垄断的严峻考验,进而提出了振兴汽车工业,实现中国汽车电子产业化的几点建议。尽管我们现在的技术水平与国外相比还存在相当的差距,但是随着我国 IC 产业的不断发展、壮大,相信我们国家一定能在汽车电子方面取得令世人瞩目的成绩。展开更多
文摘The solvent extraction of trace gold(Ⅰ) from alkaline cyanide solution by CTAB/TBP system was investigated using a new extraction equipment.The results demonstrated that the addition of CTAB in aqueous phase could enhance the gold(Ⅰ) extraction rate of TBP sharply.The extraction of 20L alkaline cyanide solutions in two extraction columns showed that the extraction percentage was more than 91%,and the gold mass concentration of raffinate was less than 0.8ppm in the all process of extraction.Gold(Ⅰ) Stripping from loaded organic phase by KSCN was also studied.Almost all of gold in loaded CTAB/TBP could be stripped into aqueous phase by 3mol/L KSCN solutions for three times stripping.
文摘本文通过回顾汽车电子技术的应用和发展历程,简要的介绍了国外汽车电子的技术水平及研究方向,同时也介绍了我国汽车电子行业潜在的巨大商机以及面临国外技术垄断的严峻考验,进而提出了振兴汽车工业,实现中国汽车电子产业化的几点建议。尽管我们现在的技术水平与国外相比还存在相当的差距,但是随着我国 IC 产业的不断发展、壮大,相信我们国家一定能在汽车电子方面取得令世人瞩目的成绩。
