Extracting alumina from silicon slag - alumina manufacturer Appropriate chemical industry

alumina is an important raw material industry, a lot of factory production of alumina by sintering process of alumina, finally after a separation of coarse liquid containing silicon dioxide, not directly to decompose, desilication refined must be conducted to further improve the quality of output.

this raw silicon desilication, most of the silicon can precipitate in the form of silicon slag, then need to add lime milk on the deep desilication. The sodium aluminate solution will be given after the carbonate ranks of alumina with bayer process.

manufacturer of alumina from silicon slag filter hybrid silicon slag, adding carbon points to dilution mother liquid, and then sent into the reaction tank and add carbon mother liquid, steam temperature and keep the corresponding reaction time, makes the silicon slag of alumina to achieve high dissolution rate, then separation, solid residue still sent to the batching process to participate in the ingredients. Filtrate dissolution process configuration adjusting fluid, can also be after refined as raw materials for the chemical alumina production.

this method of recovery of alumina from silicon slag, there are both chemical process and physical process, the recovery rate of alumina has relationship with multiple control conditions, strict control of reaction temperature and time, in order to achieve the best economic effect.

silicon slag recycling aluminum oxide of alumina plant is mainly to reduce the return amount of alumina to improve process capacity, can also reduce the production cost, also can bring the product sales profit, obtain good economic benefits.