English name: polyaluminium Chloride(poly aluminium chloride), short for PAC
synonyms: PAC; Aluminum chlorohydrate; Aluminum chlorhydroxide; Aluminum chloride, basic; Aluminum hydroxychloride; Poly Aluminum Chloride; Polyaluminum Chloride
CAS No.: 1327-41-9
Molecular formula: [AL2(OH)nCL6-n]m
Technical standard: GB15892-2003
PAC-01(white powder, spary drier type): for drinking water, paper-making, medicament, Cosmetics auxiliaries, etc.Specifications: AL2O3, %, 29-30; Bacisity, 40-60; Water insoluble, less than 0.3%:
PAC-02(light yellow powder, spary drier type): for drinking water treatment or wastewater treatment.Specifications: AL2O3, %, 29-32; Bacisity, 70-85; Water insoluble, less than 0.5%:
PAC-03(yellow powder, drum drier type): for drinking water treatment or industrial wastewater and municipal wastewater treatment.Specifications: AL2O3, %, 29-30; Bacisity, 80-95; Water insoluble, less than 1.5%.
(New product)PAC-S(yellowish powder, spary drier type): for drinking water, paper-making, medicament, Cosmetics auxiliaries, etc.Specifications: AL2O3, %, 30; Bacisity, 60-80; Water insoluble, less than 0.2%:(water solution: totally transparent)
PAC-04(yellow brown powder, drum drier type): for industrial wastewater and municipal wastewater treatment.Specifications: AL2O3, %, 25-28; Bacisity, 85-110; Water insoluble, less than 1.5%:
Features of spray dried process:
The features of pressure type spray dried method is determined by the operating principle of pressure type atomizer. The output product after pressure type spray dried process is porous fine particle or hollow fine particle, which shows the features of superiors dustproof and flowing property. Owing to its bigger contact area between itself and surrounding water than other powder products, it shows better wettabiliy and quicker water purifying speed.Spray granulation is to dry polyaluminium chloride and atomize to be minute particle simultaneously.
Poly aluminium chloride is water soluble substance and shows features of good thermal stability and high solubility .Polyaluminium chloride solution with 40-50% solid content on drying is introduced to high pressure pump, atomized in atomizer of dryer to be minute fogdrop which is the dried to be granular products. Dehydration and granulation are made simultaneously in this process.
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