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Place of Origin: | China (Mainland) |
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Quick Details
Specifications
PAC (Poly Aluminum Chloride)
PAC is a kind of new inorganic polymer flocculate of high efficiency. It is produced by advanced production process and it is formed by polymerization of good raw materials. It can be divided into solid state and liquid state. The solid PAC can be brown, yellow or white. There is a big difference in application and production technology among each PAC of those different colors. It has a lot of advantage, such as less inpurity, higher molecule weight and better condensation effect.
PAC State
PAC is divided into two states: solid state and liquid state.
Liquid PAC is the form before drying. Its advantage is no attenuation, simple operate and low price. But it should be transported by tanker car, resulting in higher transportation cost.
Solid PAC is the form after drying. Its advantage is that it doesn't need a tanker car and it is easy to transport while its disadvantage is that it needs attenuating and this increases the labor intensity.
Product Performance
1. It has a large number of stable polynuclear hydroxy aluminum complexes of positive charge, which is helpful for flocculation and sizing treatment. The water processed by PAC is better than that processed by Aluminum Sulfate.
2. Lower basicity consumption, lower dosage and lower cost.
3. It is available to water with a wide PH range (5.0-9.0).
4. It is less corrosive and it is easy to operate.
PAC Advantage
White PAC is one of the star products in water treatment agent series. It is a composite efficient product that shares a lot of advantage with common PAC, spray PAC and paper-making PAC.
Basic differences between PAC and traditional inorganic coagulants lie in their different structures. The traditional inorganic coagulants' structure is low-molecular-weight crystalline salt while PAC's is multiple Carboxyl Complex. PAC can make flocculations fast precipitate and it can effectively remove heavy metal ions including SS, COD, BOD, As and Hg from water. PAC is applicable to a wide PH range and it is not corrosive to pipe equipment. All of these advantage make PAC popular in drinking water, industry water and waste water treatment.
Differences between PAC of Different Colors
In general, PAC has three colors: white, yellow and brown.
White PAC is called high-purity white PAC without iron or food grade white PAC. It is of the top quality. Compared with others, its raw material is superior aluminum hydroxide powder and hydrochloric acid and it adopts spray drying technology, which is the most advance technology. White PAC is widely used in many industries, such as paper sizing, sugar's decoloring & clarifying, tanning, medicine, cosmetic, precision casting and water processing industry.
Yellow PAC has two solid forms: flake and powder. Its raw materials are calcium aluminate powder, hydrochloric acid and bauxite. Yellow PAC is mainly used to process waste water and drinking water. When it is used for drinking water, the materials should be aluminum hydroxide powder, hydrochloride acid and some calcium aluminate powder. Its manufacture technology is plate-frame filter pressing and spray drying method. What's more, yellow PAC can also be made by roller drying or spraying tower drying. Our country pays much attention to heavy metal percentage in the drinking water, therefore, no matter from raw material or production technology, yellow PAC is better to process drinking water than brown PAC.
Brown PAC is made from calcium aluminate, hydrochloric acid, bauxite and iron powder. It is made by roller drying and it is adapted to waste water processing. The color is brown because there are some iron powders inside. The more iron powder is, the deeper color will be. If iron powder is beyond the indicator, it will be called PAFC, which plays an important role in waste water treatment.
Quality Standard
Indicator |
GB/15892-2009 |
GB/T22627-2008 |
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Drinking-water grade |
Water-treatment grade |
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Liquid |
Solid |
Liquid |
Solid |
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AL2O3(%)≥ |
10.0 |
29 |
6.0 |
28.0 |
B(%) |
40.0-90.0 |
30-95 |
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Insoluble %≤ |
0.2 |
0.6 |
0.5 |
1.5 |
PH |
3.5-5.0 |
3.5-5.0 |
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Fe %≤ |
---- |
2.0 |
5.0 |
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As ppm≤ |
0.0002 |
0.0005 |
0.0015 |
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Cd ppm≤ |
0.0002 |
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Cr6+ ppm≤ |
0.0005 |
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Pb %≤ |
0.001 |
0.002 |
0.006 |
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Hg %≤ |
0.00001 |
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Application
1. Urban domestic water and industry supply water purification
2. Urban wastewater purification
3. Industry wastewater: printing and dyeing wastewater, leather wastewater, fluoride sewage, heavy metal wastewater, oily wastewater, papermaking wastewater, coal washing wastewater, mine wastewater, brewery wastewater, metallurgical wastewater, meat processing wastewater.
4. Recycling of useful substances from industry wastewater, such as braize and starch recycling.
5. Paper sizing agent
6. Refined liquid sugar
7. Casting and molding
8. Fabric's crease resistant
9. Catalyst carrier
10. Medicine making
11. Cement's quick hardening
12. Cosmetics' raw materials
Usage and Notes
Usage
1. The test should be done before application according to the water quality to choose a best point where the purifying result is the best but with the lowest dosage.
2. The water should be added to produce 10-25% PAC solution when the solid PAC is used. Then the solution should be stirred continually until it is attenuated to the proper concentration.
3. The original solution and the diluent are less corrosive than other inorganic flocculants.
Note
When using the solid PAC, users can add some water to get the 5%-15% alumina solution according to actual demands, which depends on the process designs and working conditions. Then the final solution can be put by chemical dosing system or it can be directly put into the water to be processed. The specific dilution method is as follows: First, the clean water should be poured into the dissolving tank and then stirred. Secondly, the PAC powder should be put into the clean water and then be stirred until it is totally dissolved. Workers should wear goggles, rubber gloves, overalls to avoid directly contacting their skin with the product. The final solution can be used directly or be stored.
PAC Packaging and Storage
1. Packaging: plastic woven bag outside, plastic film inside
2. Net weight: 25kg per bag or according to customer's requirements.
3. Never put PAC together with toxicity substance and other chemical agents including same product made by different producer.
4. Storage place should be an indoor place that is dry, ventilated and cool .
5. Be loaded and unloaded quietly.
6. Liquid product should be transported by tank cars and pail packs. It can be used directly.
7. Solid PAC should be dissolved before application and the related equipment must be made from corrosion-resistant materials.
8. Valid time: liquid PAC(half year); solid PAC( one year)