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毛主席语录在生产斗争和科学实验范围内,人类总是不断发展的,自然界也总是不断发展的,永远不会停止在一个水平上。因此,人类总得不断地总结经验,有所发现,有所发明,有所创造,有所前进。(一)前言铂铱合金广泛应用于航空,电气等工业部门,由于铂族金属稀少而昂贵,故对其废旧金属材料必需进行再生,提纯,回收。我所曾于1963—1964年间提出过铂铱合金废料的再生提纯研究报告及扩大试验报告。因铂铱合金废料用王水直接溶解速度极慢(特别当铱含量高于10%时更甚)。电化溶解法,国外有试验性报导但未见应用于生产中。在我们的实践中,亦未找到良好的条件,今后还需进一步研究。由资料、提供的基本方法是;首先使合金废料与锌在高温下熔融碎化,然后再用盐酸浸除锌,得到铂铱合金粉,用王水将其溶解,
Quotations from Chairman Mao In the context of the struggle for production and the experiments in science, mankind always develops continuously. Nature has always evolved and will never stop at a certain level. Therefore, mankind always has to sum up his experience, find something, invent something, create something, and make progress. (A) Introduction Platinum iridium alloy is widely used in aviation, electrical and other industrial sectors, due to the rare and expensive platinum group metals, so its scrap metal materials must be recycled, purified, recycled. I have made in 1963-1964 platinum Iridium scrap scrap regeneration and purification of the research report and to expand the test report. Due to platinum iridium alloy waste with aqua regia direct dissolution rate is very slow (especially when the iridium content is higher than 10% even worse). Electrochemical dissolution method, there are experimental reports abroad but no application in the production. In our practice, we have not found any good conditions and will need further study in the future. The basic method provided by the data is: firstly, alloy scrap and zinc are melted and fragmented at a high temperature, and then the zinc is leached with hydrochloric acid to obtain the platinum-iridium alloy powder, which is dissolved with aqua regia,