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| | Refractorry Raw Materials suppliers (18th Jan 23 at 1:50am UTC) | | Refractorry Raw Materials suppliers Polyaluminum chloride, referred to as PAC, is a new type of high-efficiency inorganic polymer flocculant. It is a hydrolysis product between ALCL3 and AL(OH)3, which is bridged and polymerized through hydroxyl groups. Its molecular formula is: [Al2( OH)nCl6-n xH2o]m (m鈮?0,n=1锝?)
Polyaluminum chloride is easily soluble in water and has strong bridging adsorption properties. During the hydrolysis process, physical and chemical changes such as electrochemistry, coagulation, adsorption and precipitation are accompanied. This product is mainly used for the purification of drinking water and the treatment of industrial sewage, such as radioactive substances, lead (Pb++) chromium (Cr++) highly toxic heavy metals and fluorine (F) sewage. In addition, it is also widely used in precision casting, paper making, and leather making.
How to use, pack and store
1). When using solid products, first add water to dissolve to make a 5-10% solution, and then dilute to the required concentration. When dissolving, add water first and stir slowly. The diluted solution should be used up within 24 hours. so as to avoid hydrolysis and reduce the use effect. The dosage of this product varies depending on the turbidity of the source water and the purification equipment. It is necessary to do a coagulation and sedimentation test to determine the optimum dosage.
2). The liquid polyaluminum chloride is packed in polyethylene plastic barrels, with a net weight of 25kg, 50kg or 200kg per barrel. It adopts double-layer barrel cover, the inner cover is fastened tightly, and the outer cover is screwed tightly. When the user needs, the liquid polyaluminum chloride can also be shipped in a tank truck. Solid products are packed in double-layer bags, each bag with a net weight of 25kg, the inner layer is a plastic bag, and the outer layer is a plastic woven bag. This product should be stored in a ventilated and dry warehouse, and it is strictly forbidden to be exposed to rain and moisture.
NameIndex
LiquidSolid
Alumina (Al2O3)% mass fraction鈮?/p>6.028.0
Salinity/%35.0-95.0
Density (20 鈩? (g/cm3)鈮?/p>1.12
Mass fraction of insoluble matter %鈮?/p>0.4
Iron (Fe) mass fraction/%鈮?/p>0.5
PH value (10g/L aqueous solution)3.0-5.0
Mass fraction of arsenic (As)/%鈮?/p>0.0005
Lead (Pb) mass fraction/%鈮?/p>0.002
Cadmium (Cd) mass fraction/%鈮?/p>0.001
Mass fraction of mercury (Hg)/%鈮?/p>0.00005
Mass fraction of hexavalent chromium (Cr+6)/%鈮?/p>0.005
Note: As, Pb, Hg, Cd, Cr+6 insoluble matter indexes listed in the table are all calculated according to Al2O310%. When the content is more than 10%, the actual content should be converted into Al2O310% product ratio to calculate various impurity indexes.Refractorry Raw Materials suppliers
website:http://www.runjinrefractories.com/refractorry-raw-materials/ | |
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