T
he cationic polyacrylamide produced by our company under the trade name of PDCA, is made from ethylene based cationic monomer and acrylamide through a copolymerization process. Typical characteristics are shown in the table below.

Type and Characteristics of the Cationic Polyacrylamides

Trade
Name
Cationicity in molecule
(%)
Molecular Weight x106
Effective pH Range
Solids Content(%)
Residual Monomer(%)
Form
PDCA-5A
80
3
1-14
90
0.03
White Powder
PDCA-5
50
8
1-14
90
0.03
White Powder
PDCA-3
30
9
1-14
90
0.03
White Powder
PDCA-2
20
10
1-14
90
0.03
White Powder
PDCA-1
10
10
1-14
90
0.03
White Powder

Note:
1. The PDCA series products have 20-80 mesh grain size. Under room temperature and at a concentration of 0.05%-0.1% concentration it takes about 60 minutes to dissolve in water.
2. The packaging is in 25 kg bags, the bag material is double-layered, with an outer layer of oven plastic and an inner sheet plastic layer. The packaging can also be made to meet customers' requirement.

Main Applications:

1. Sludge De-watering: Based on the sludge nature, suitable product can be selected from our product series. Before entering filter press, the sludge can be de-watered by gravity with the help of our product. The large flocs that are formed minimize sticking to the filter cloth and reduce spillage from the press filter. The water content of the resulting filter cake is usually below 80%. Dosing rates are relatively small, but de-watering efficiency is high.

2. Treatment of Municipal and Industrial Waste Water: Because these products are always positively charged in both in acidic or alkaline media, they very effectively flocculate, settle, and clarify waste water with negatively charged suspension solids, such as the waste water from grain-made alcohol plants, breweries, sugar mills, meat product processors, textile printing mills, paper mills, and municipal waste water plants. By using cationic polyacrylamides the efficiency will go up by several times compared to using anionic or nonionic PAM or inorganic salts, since particles in most waste water are normally negative charged.

3. Flocculant for Raw Water Sources: Featured by low dosing rates, high performance, and resulting low cost, especially when combined with an inorganic flocculant, these polymers can form the flocculant system of choice in drinking water plants located along rivers or other raw water sources.

4. Auxiliary Chemical in Paper Making: (please refer to our specific Product Introduction sheet)

5. Auxiliary Chemical in Oilfield: Effective as a clay anti-swelling agent, a thickener for acidizing, and in several drilling applications.

 
 

 


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