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Gray cast raw materials from gold gold pen nib grinding plant generated; gold plant offal scrap; jewelry factory because the polishing dust, and other open-chain process produces hammering; textile machinery such as abrasive nylon spinneret. Such waste can be recovered by fire smelting or by wet separation.
     1. Fire smelting After collecting the gold-containing dust and screening the impurities, the following ingredients are used: 100 grams of dust, 1.5 grams of lead oxide, 30 grams of sodium carbonate, 20 grams of saltpetre, and mix it evenly into the crucible. , and then a thin cap layer borax, into the melting furnace to give Jingui containing lead, gold can be obtained after the crude lead cupellation expensive. If the crude gold has platinum or rhodium , it can be further separated from platinum and rhodium by melting with aqua regia.
     2. Wet separation The gold ash in the gold pen factory often contains precious metals such as gold, bismuth and platinum. The ruthenium is insoluble in aqua regia, and the ruthenium is first separated, then the platinum is separated from the aqueous solution of the king, and finally the gold is recovered.
     3. Recycling of gold in scrap diamond grinding Generally, the method of recovering gold is carried out by using hydrochloric acid soaking, aqua regia dissolution and reduction precipitation.
Dear customer.
We are grateful to you for using our Pouring Robot, please give us your feedback or suggestions in time after use, we will be very grateful for your support. Before using this equipment, please read the following content carefully, it will be of great help to the equipment problem in the future.
1. The voltage used by this equipment must be in line with meet the national grid power supply standards.
2. This equipment must wear the relevant protective measures when using the operation.
3. The operator must read this manual carefully before use and operate strictly according to the operating procedures.
"Maintenance is more important than repair, and repair is more important than construction". Correct operation and maintenance is the necessary guarantee to extend the life of this equipment.
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Dongying Dosun Mechanical Automation Co.,LTD , https://www.dosunmachinery.com