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乙腈提铜是近年发展起来的一种湿法炼铜新工艺。为提高产品质量,控制乙腈对环境的污染,要求对CuSO_4/H_2SO_4/CH_3CN/H_2O体系的浸出液、蒸馏后残液及回收液中乙腈的含量进行快速、准确的测定。化学法测定乙腈操作繁杂、分析时间长,其应用受到限制。用气相色谱法测定有机物中的乙腈已有文献报导,但尚未看到用气相色谱法测定CuSO_4/H_2SO_4/CH_3CN/H_2O体系中乙腈的报导。本文研究了CuSO_4/H_2SO_4/CH_3CN/H_2O体系中测定乙腈的气相色谱条件,解决了快速又准确地测定乙腈提铜浸出液、蒸馏后残液及
Acetonitrile copper is developed in recent years, a new wet-process copper smelting process. In order to improve the product quality and control the pollution of acetonitrile on the environment, the content of acetonitrile in the CuSO_4 / H_2SO_4 / CH_3CN / H_2O system leaching solution, the residue after distillation and the recovery liquid are required to be determined rapidly and accurately. The chemical method for the determination of acetonitrile is cumbersome, the analysis time is long, and its application is limited. Determination of acetonitrile in organic solvents by gas chromatography has been reported in the literature. However, the determination of acetonitrile in CuSO 4 / H 2 SO 4 / CH 3 CN / H 2 O by gas chromatography has not yet been reported. In this paper, the gas chromatographic conditions for the determination of acetonitrile in CuSO_4 / H_2SO_4 / CH_3CN / H_2O were studied, and the rapid and accurate determination of acetonitrile leaching solution of copper, residue after distillation and