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.

Другие товары поставщика

	Superabsorbent for Agriculture	SINOFLOC is committed to being customer's most reliable supplier who could provide an extensive range of oilfield chemicalsand services, with high-...
	Superabsorbent for Agriculture	The demand of conserving water resources is increasing along with the shortage of water resources all over the world. As one of the leading Superab...
	Superabsorbent	Applications of Super Absorbent Polymers in Agriculture Superabsorbent SINOFLOC superabsorbent polymers (known as SAP) are water-insoluble poly...
	Polyamine	SINOFLOCpolyamine is liquid, cationic coagulantwith different solid contents and viscosities and suitable a wide range of PH. Our products could be...
	Friction Reducer	SINOFLOCis offering a broad range of leading-class friction reducer to our customers from fresh water to heavy brines. Our High Viscosity Friction ...

Похожие товары

	Catalytic Converter Scrap Supplier, Catalytic Converter Scrap for Sale, , Catalytic Converter Scrap, Catalytic Scrap for Sale, Catalytic Scrap Supplier, Scrap Catalytic Supplier	Продавец: Trucont LLC	В компании Trucont LLC мы постоянно предлагаем лом каталитических преобразователей для немедленно...
	Epimedium Extract	Продавец: Fruit Powder,Vegetable Powder	Product Name: Epimedium ExtractLatin Name: Epimedium Sagittatum Maxim.Specification: Icariin 5%, ...
	Pumpkin Powder	Продавец: Fruit Powder,Vegetable Powder	Product Name: Pumpkin PowderLatin Name: Cucurbita pepo L.Used Part: FruitAppearance: yellow fine ...
	Broccoli Powder	Продавец: Fruit Powder,Vegetable Powder	Product Name: Broccoli powder Latin Name: Brassica oleracea L.var.italic Planch. Used Part: Who...
	Pomegranate Powder	Продавец: Fruit Powder,Vegetable Powder	Product Name: Pomegranate PowderLatin Name: Punica granatum linn.Used Part: Fruit juiceAppearance...