Extraction of Aluminium in Fly Ash
There are three main types of extraction of Aluminium:
(1) Sulfuric acid refining: 1. The fly ash is ground and calcined and activated, and then leached by sulfuric acid and concentrated to obtain aluminum sulfate crystals; 2. after calcination, an alkaline solution is added; 3. using iron removal technology, Aluminum hydroxide is obtained; 4. It is then calcined and aluminium is obtained. Because sulfuric acid has strong acidity and volatility, it not only poses a threat to the safety of operators, but also pollutes the environment. Therefore, pay attention to safety during the operation.
(2) Refining ammonium aluminum sulfate: 1. Grinding fly ash and mixing with ammonium sulfate, then calcining at high temperature; 2. Leaching with sulfuric acid and filtering; 3. Using ammonia water to make the pH of the filtrate to about 2.0, then Aluminium ammonium sulfate crystals were precipitated; 4. Sulfuric acid was added at 60 ° C and cooled to precipitate all crystals. And repeated operations 3 times to obtain ammonium aluminum sulfate; 5. The product is thermally decomposed to obtain aluminium. This method can obtain aluminium with higher purity.
(3)Fluorine ammonium refining: 1. Mix fly ash with ammonium fluoride (acidic) solution and heat to obtain crude alumina; 2. Add alkaline solution, then pass carbonation and pyrolysis to obtain purer aluminium. This method has a large extraction rate, but the cost is high.
With a solid thirteen-year history of growth and expansion, SINOFLOChas become a leading manufacturer and supplier of water-soluble superabsorbent polymers in China. Founded in 2003 and expanded production capacity since 2009, now we have 2 facilities with the flocculants and coagulants capacity of 90,000 MT annually.
Send product request
Other supplier products
 |
Guar Alternative | SINOFLOC is offering a new range of synthetic polyacrylamide that can be used as , with main functions of opening the fractures and transporting an... |
 |
Amphoteric Flocculants | SINOFLOC amphoteric flocculants are partially hydrolyzed polyacrylamide with high molecular weight. This amphoteric polyacrylamide is easily to rem... |
 |
Cationic Flocculants for Municipal Wastewater Treatment | Along with the increasing need for water resources, the recycling and reuse of municipal wastewater are essential. Cationic polyacrylamide is effec... |
 |
Drilling Fluid Additives | SINOFLOC water-based drilling fluids additives are specially developed to meet customer’s critical needs of maximum performance and compatibi... |
 |
Superabsorbent | Applications of Super Absorbent Polymers in Agriculture Superabsorbent SINOFLOC superabsorbent polymers (known as SAP) are water-insoluble poly... |
Same products
 |
KLUBER Microlube GL 261 400g Special Lubricating Greases on a Mineral Oil Base | Seller: Guangdong Juguangheng Automation Equipment Co.,Ltd. | MICROLUBE GL 261, GL 262 greases are particularly suitable for low to medium-speed plain and roll... |
 |
MOBIL GREASE XHP 222 16KG Industrial Grease | Seller: Guangdong Juguangheng Automation Equipment Co.,Ltd. | Mobilgrease XHP 222is an extended service lithium complex grease intended for a wide variety of a... |
 |
Castrol Molub-Allloy Paste TA 1KG High temperature Lubricants | Seller: Guangdong Juguangheng Automation Equipment Co.,Ltd. | MOLUB-ALLOY™PASTE TAensures a good separating and sealing effect in high temperature and we... |
 |
Phenol Alkylation Plant | Seller: Hubei Sanli Fengxiang Technology Co., Ltd | Phenol Alkylation Plant Product Description Alkyl phenolis produced by the alkylation of phenol... |
 |
KYODO YUSHI PAREMAX SUPER 400G High Temperature Grease | Seller: Guangdong Juguangheng Automation Equipment Co.,Ltd. | KYODO YUSHIExtend Lubrication Life RMS-4VRare Max SuperGrease Cartridge (400g) for Bearings |
