氰化

This paper describes the innovation and technology progress of roasting- cyanide leaching process in China,explores the current problems,prospects the developing direction of this process.

叙述了我国金精矿焙烧-氰化浸出工艺自主创新和技术进步的历程，对目前生产中存在的问题进行了探讨，展望了该工艺的发展方向。

The gold extraction process from alkaline cyanide solution with the synergic system consisted of MSO and TBP is studied.

研究MSO-TBP组成的协萃体系从碱性氰化液中萃取金过程。

This route overcomes the shortcoming on environmental pollution and poison in the cyanide process, which is widely applied in our country. This route isnt known in our country. It is a new environmental pollution process, and is in according with the progress of industrial policy. In the second step, the methyl isobutyl ketone which introduced in the patent is replaced by the material A, and the marketable foreground of the byproduct is considered. It is an innovated process, which can supply a gap in our county.

文中探讨的工艺路线克服了国内所广泛采用的氰化法路线所带来的环境污染和人体危害问题，目前国内尚未有报道，是一条新型的环保路线，符合国家产业政策的发展方向，而且在第二步3-氨基丙醇的合成中，用原料A取代专利中介绍的甲基异了酮，在获得产物的同时又兼顾了副产物的市场潜力，工艺上具有创新性，可填补国内该工艺路线的空白。

"Cyanide process: or MacArthur-Forrest process, Method of extracting silver and gold from their ore s by dissolving them in a dilute solution of sodium cyanide or potassium cyanide."

氰化法：亦称麦克阿瑟－福莱斯特法，是将含金和银的矿石溶解于氰化钠和氰化钾稀溶液中，以提取金和银的一种方法。

"Cyanide process: or MacArthur-Forrest process, Method of extracting silver and gold from their ores by dissolving them in a dilute solution of sodium cyanide or potassium cyanide."

氰化法：亦称麦克阿瑟－福莱斯特法，是将含金和银的矿石溶解于氰化钠和氰化钾稀溶液中，以提取金和银的一种方法。

"Cyanide process: or MacArthur-Forrest process, Method of extract ing silver and gold from their ores by dissolving them in a dilute solution of sodium cyanide or potassium cyanide."

氰化法：亦称麦克阿瑟－福莱斯特法，是将含金和银的矿石溶解于氰化钠和氰化钾稀溶液中，以提取金和银的一种方法。

Based on electroplating theory, several common complex agents and additives are screened and analyzed, and the method for converting cyanide zinc plating process to cyanide-free zinc plating process is discussed. The throwing power, covering power and corrosion resistance have been tested for verifying the conversion effects.

本研究以电镀理论为依据，对现有几种常用配位剂和添加剂进行筛选和分析，探讨将氰化物镀锌工艺向无氰化转化的方法。

This item plans to construct 5 thousand t/y Tert - butylamine production equipment which uses internally developed independently isobutene cyanide process for the production of raw materials for pure isobutylene, purity of 99.5% of the domestic production of tert - butylamine.

拟建设5000吨/年叔丁胺生产装置。该装置采用国内自主开发的异丁烯氰化法生产工艺，以纯异丁烯为原料，生产纯度为99.5％的叔丁胺产品。

Directly plating process without cyanide copper.

替代传统的锌合金氰化镀铜打底，无毒，工艺简单。

The mechanism of adsorption gold、 silver from cyanide solution was also discussed.

对树脂吸附碱性氰化溶液中金银的机理进行了初步探讨。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。