Alchemist’s Lab Design—Electrocontrolled Chlorination Process
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This post was last edited by crygch on 2010-3-23 20:17: How to design an alchemy lab using substitutional gold paste. Please share your opinions. It contains 10% gold, 40% silver, 10% copper, 3% lead, and 15% zinc. Annual processing capacity of 10 tons of gold. Hydrochloric acid is used to remove zinc and part of the copper, followed by the separation of gold using chlorides; sulfur dioxide is then used to reduce and precipitate the gold, which is subsequently cast into gold ingots. After the gold slag is replaced with iron powder, it is melted and cast into silver anode plates, which are then subjected to electrolysis to produce electrical silver. It is planned to process 600 kg per batch; a 3000 L reactor will be used for impregnation, and a 2500 L reactor for chlorination. I’m not sure what the size should be
Process: Drying, refining into pure gold, bead pouring, acid treatment to remove impurities, smelting to obtain crude gold; then, using acid solution with salt to precipitate the substance and thus obtain crude silver. Finally, electrolysis of gold and silver yields grade 1 gold and silver. Just pay attention to security aspects during the design process
Hehe, the daily or annual processing capacity needs to be specified in order to carry out the design; the process has to be planned based on the production volume and composition. The method is generally the same: first remove impurities, then separate gold from silver, and finally refine each separately.
1# crygch is zinc powder used to replace gold slurry, right? It’s relatively easy to handle; it can be processed using the all-wet method for gold slurry production. I worked with this method for several years. If you need more information, you can contact xuankuangliu@163.com.
-- 10T? That’s quite a lot. --
The quantity is quite large; the recommended process is to first use sulfuric acid to remove zinc and some of the copper, then separate gold using chlorides, precipitate the gold, cast the crude gold powder into anode plates, and carry out gold electrolysis. After the gold slag is replaced with iron powder, it is melted and cast into silver anode plates, which are then subjected to electrolysis to produce electrical silver. If necessary, you can contact me via QQ: 344648885.
-- 10T is an absolutely enormous amount. It seems that it’s usually large design institutes that handle this? --
1# crygch: I come from the field of nitric acid-based impurity removal. I wouldn’t say that Yantai represents the standard for gold smelting. In principle, nitrogen dioxide is just as difficult to absorb as chlorine. However, the wet-process gold slurry smelting using nitric acid has been in use for at least 10 years now, and it is a reliable process; the only issue is with absorption, nothing else. If you enjoy communicating, you can discuss via xuankuangliu@163.com.
I think everyone has strayed a bit from the topic; what the original poster is asking is how to carry out design using the specific process he has chosen. With such a large scale, it’s best to find a professional design company.
The reaction vessels are too small. Additionally, using hydrochloric acid to remove zinc and copper is inefficient and costly; a process for removing copper through electrical control can be added. The silver content is 4 times that of gold, which affects the chlorination process; as a result, the gold content in the gold slag is quite high. The aqua regia process can be used, and exhaust gas absorption is not a difficult task.