Anionic polyacrylamide flocculant

Anionic polyacrylamide (APAM)
The process of anionic polyacrylamide produced by is divided into two kinds, based on different purpose, one is homopolymerizatian(pre-hydrolytic polymerization of acrylamide),and another one is copolymerization(copolymerization from acrylamide and sodium acrylate).
Specifications: 

Molecular Weight×million	Degree of hydrolysis	Solubiliy h	Solid Content %	Effective pH Range	Residue Monomer %	Appearance
18-25	20-27	2	≥90	7-14	≤0.05	White powder
15-17	20-27	2	≥90	7-14	≤0.05	White powder
10-14	20-30	2	≥90	7-14	≤0.05	White powder
7-9	20-30	2	≥90	7-14	≤0.05	White powder
5-7	8-30	2	≥90	7-14	≤0.05	White powder
3-5	8-30	2	≥90	7-14	≤0.05	White powder
1-2	8-30	2	≥90	7-14	≤0.05	White powder

Main Purpose
1)MW 18-25/15-27 million mainly used for oil displacement of tertiary oil recovery in oil field . The polymer oil-displacement is still the technology of tertiary oil recovery which has most developable potential and most enforceable values in a quite long phase at present and in the future . The superhegh molecular weight polyacrylamide with about 20 million relative molecular weight and low hydrotrope is main one among oil-displacryla agents in oil field at present . And the use by each of large oil fields proves that the product has reached international advanced level .
2)The product of 10-14/7-9 million mainly used in treatmeng and recovery of industrial waste water,such as the waste water of ironworks, smelter and coal-washing piant,and has special good effect to settle electropositive metal oxide . The dosage is 1% of traditional inorganic flocculent but has excellent effect .
3)MW 1-7million products is mainly used for paper industry to enhance strength of paper ,and also can be used in retention aid and filter aid to enhance wet strength ,decrease flexibility and reduce broken end of paper effectively and also enhance machine speed and improve making behavior of paper pulp .