会议论文 详细信息
Study on equilibrium characteristics of chelation between model compounds and non-process element in pulp flow
作者单位：S China Univ Technol, Natl Engn Res Ctr Paper & Pollut Control, Guangzhou, Peoples R China
摘 要：In the paper, the chelate equilibrium constants of non-process elements (NPEs), Al, Fe, Cu, Ca, Mn, Mg, to the organic model compounds, such as p-coumaric acid, sulfosalicyie acid, salicyie acid, citric acid, have been set out and analyzed by using pH potentiometer and spectrophotometer. The results indicated that the chelate equilibrium constants between Al3+, Fe3+ and the organic model compounds were bigger than that between other metal ions and the organic model compounds, and their chelate compounds were the most steady; the organic model compounds with a chain structure have the strongest ability to chelate with NPEs; Fe3+ and Al3+ have a stronger ability to chelate organic model compound than other metal ions.
关 键 词：non-process element chelate equilibrium constant pH potentiometer spectrophotometer
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