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本文将硫化钠浸锑液经盐酸-高氯酸除硫,盐酸-硝酸破坏碳和有机物,氢溴酸除锑处理后,在10％盐酸介质中,用0.05％双琉腙-乙酸丁酯萃取金,以空气-乙炔焰原子吸收法进行测定。研究了该试液中钠、锑、砷等16种杂质的干扰及消除。金的回收率在96—102％之间,方法灵敏度为0.05微克/毫升/1％吸收,测定范围为0.0x—xxx毫克/升。本法简便、快速、经济,经实践考验,完全适用于硫化钠浸锑液中微量金的测定。方法投产后所报出的几百个分析结果,均与冶金工艺流程相符。
In this paper, sodium sulfide leaching antimony solution by hydrochloric acid - perchloric acid desulfurization, hydrochloric acid - nitric acid destruction of carbon and organic matter, antibrominated hydrobromide treatment, in 10% hydrochloric acid medium, with 0.05% double hydrazone - butyl acetate extraction Gold, measured by air-acetylene flame atomic absorption spectrometry. The interference and elimination of 16 kinds of impurities such as sodium, antimony and arsenic in the test solution were studied. Gold recovery was between 96-102% with a sensitivity of 0.05 μg / ml / 1% absorption in the range of 0.0x-xxx mg / l. This method is simple, rapid, economical, practical test, fully applicable to the determination of trace amounts of gold in sodium sulfide leaching solution. Hundreds of analysis results reported by the method after commissioning are in line with the metallurgical process.