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.

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...
	Drilling Fluid Additives - Drilling Mud Viscosifier	Drilling Fluid Additives - Drilling Mud Viscosifier In the drilling operation, the anionic high polymer is often used as drilling fluid additive...
	Cationic Flocculants for Municipal Wastewater Treatment	SINOFLOC is committed to being customer's most reliable supplier who could provide an extensive range of oilfield chemicalsand services, with high-...
	Nonionic Flocculants for Industrial Wastewater Treatment	SINOFLOC nonionic flocculants are high and very high molecular weight nonionic polyacrylamide polymers, in dry powder character. Our products have ...
	Cationic Flocculants	Cationic Flocculants SINOFLOC cationic flocculants are co-polymers of acrylamide with increasing proportions of cationic monomers. The cationic gr...

Same products

	Heat Sealing Sterilization Pouch	Seller: Hopeway AMD	Heat Sealing Sterilization Pouch is designed for secure medical instrument packaging, supporting ...
	Catalytic Converter Scrap Supplier, Catalytic Converter Scrap for Sale, , Catalytic Converter Scrap, Catalytic Scrap for Sale, Catalytic Scrap Supplier, Scrap Catalytic Supplier	Seller: Trucont LLC	At Trucont LLC, we have ongoing Catalytic converter scrap available for immediate loading and shi...
	Epimedium Extract	Seller: Xi'an Yuensun Biological Technology Co., Ltd.	Product Name: Epimedium ExtractLatin Name: Epimedium Sagittatum Maxim.Specification: Icariin 5%, ...
	Pumpkin Powder	Seller: Xi'an Yuensun Biological Technology Co., Ltd.	Product Name: Pumpkin PowderLatin Name: Cucurbita pepo L.Used Part: FruitAppearance: yellow fine ...
	Broccoli Powder	Seller: Xi'an Yuensun Biological Technology Co., Ltd.	Product Name: Broccoli powder Latin Name: Brassica oleracea L.var.italic Planch. Used Part: Who...