New processes and equipment in the non-ferrous metallurgy industry
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In recent years, the non-ferrous metallurgy industry has developed rapidly, introducing many new foreign processes and equipment； The metal industries, such as those involving aluminum, copper, zinc, lead, nickel, etc., have seen unprecedented development; we welcome colleagues to get actively involved. Please introduce the new process equipment you have come into contact with, and share it with everyone so as to jointly improve the level of processes and equipment in China’s non-ferrous metallurgy industry. This post was last edited by LHY8771 on 2008-12-29 09:11]
The Xiangguang Copper Industry project utilizes world-leading copper smelting technologies such as the \"double flash\" process, high-concentration sulfur dioxide conversion technology, and the Desulfurization Technology for refined off-gases from Canadian Candu arc furnaces. Additionally, the \"double flash furnace\" process replaces multiple traditional PS converters with a single converting furnace, thereby **increasing production efficiency； Introduce advanced foreign Cardo furnace technology for the recovery of precious metals, in order to recover precious metals such as gold and silver
http://bbs.hcbbs.com/viewthread.php?tid=61237&highlight=%C2%C1
The U.S. has developed a new process for hydrogen production using aluminum-gallium alloys. It is reported that recently, researchers at Purdue University in the U.S. have developed a new method for producing hydrogen by adding water to aluminum-gallium alloys. This technology has a wide range of potential energy applications, including serving as a raw material for cars and fuel for submarines, among others. This technology produces hydrogen by injecting water into an aluminum-gallium alloy. When an aluminum-gallium alloy reacts with water, aluminum breaks down the water, taking away the oxygen and releasing hydrogen. Researchers have now developed a new process for manufacturing aluminum-gallium alloy particles, allowing these synthetic particles to be placed in a water tank where they react to produce the desired amount of hydrogen. Gallium in the alloy is a key component, as aluminum and oxygen combine to form an alumina layer on the surface of aluminum; gallium prevents the formation of this layer, allowing the reaction to continue until all the aluminum has been used to produce hydrogen. Experts believe that using this technology to produce hydrogen will overcome the two major challenges of hydrogen storage and transportation, thus offering broad application prospects. Recycling raw materials reduces costs. When aluminum gallium alloy reacts with water, aluminum turns into alumina, and the waste alumina can be recycled and reprocessed into aluminum. Recycled aluminum is much cheaper to produce than aluminum produced from bauxite mining. Researchers have found that the cost of recovering alumina using standard industrial technology is much lower than previously estimated; the cost of converting pure alumina into aluminum is 44 cents per kilogram, which is highly competitive compared to gasoline. http://bbs.hcbbs.com/viewthread.php?tid=111318&highlight=%C2%C1
Industrial production has been going on for a long time; the Shanxi Aluminum Factory has a company named Jia that produces gallium, and its Henan branch also has a workshop dedicated to gallium production.
Why are posts related to metal materials being placed in this section? What is the connection to non-ferrous metallurgy?
After traditional indium electrolytic refining, chemical agents are still required to remove impurities in order to obtain 99.993% pure indium. The new process uses vacuum distillation for impurity removal, resulting in a high yield and relatively low processing costs.
China now has two plants equipped with 400KA electrolyzers; if anyone knows the details, please share them!
The 100,000-ton new project at the Danxia Smelting Plant incorporates large electrodes and automated zinc stripping machine production lines from Balvotier in Luxembourg, offering advantages such as advanced technology, high degree of automation, and lower costs
I heard recently that there are 600KA electrolyzers available; I’m not sure how they work. If anyone knows, please let me know!
At present, the largest aluminum electrolysis cells in use internationally are still the AP50 models produced by Alcan in France for industrial production, with China’s 400KA electrolysis cells coming right after them. As for 600KA aluminum electrolyzers, there are currently no reports of their use in industrial production.
As far as I know, the new 100,000-ton smelting project at the Danxia Smelter uses the oxygen pressure leaching process, which is a relatively new technique that offers high efficiency and low pollution. Additionally, I would like to ask the original poster if there is any more detailed information available regarding Xiangguang Copper Industry’s processes and automatic control systems; I hope we can exchange ideas on this topic.
Are there any new equipment and processes? If you know, please share.
11# scattered: I saw it in a magazine; it says it’s either in Qinghai or in Qingtongxia, but I’m not sure.
We use resin adsorption to recover indium, which features a short process, high efficiency, and cost savings. Those interested can contact fymx@yahoo.cn
1. Yu Guang Jin Lead’s bath smelting lead production process results in a comprehensive energy consumption per ton of lead that is 60% lower than that of traditional processes, and 30% lower even than that of the current state-of-the-art oxygen bottom-blown-blast furnace reduction process used in China. 2. Fangyuan Company’s “oxygen-blown matte production and multi-metal capture technology”.