Classification of polyacrylamide
Polyacrylamide is important water-soluble polymer, and both flocculation and thickening, the shear resistance and resistance reduction, dispersion and other valuable performance.These performance as derivatives different ions of different and different.In oil production, mineral processing, coal, metallurgy, chemical industry, textile, light textile, sugar, medicine, environmental protection, building materials, agricultural production, water treatment, paper making, petroleum, coal, ore, geology, construction and other department.
Cationic polyacrylamide (CPAM) use: as a flocculant in wastewater treatment is used in mining, metallurgy, textile, paper making industries.In the oil industry for a variety of jobs.
Anionic polyacrylamide (APAM) application: the application of anionic polyacrylamide: in industrial wastewater treatment (electroplating factory waste water, metallurgy wastewater, steel plant waste water, coal washing waste water etc.) in the flocculation precipitation effect.
Nonionic (NPAM) polypropylene acyl purpose: clarify purification effect, improving settlement, thickening and other function, filter.In waste liquid treatment, the sludge concentration dehydration, mineral processing, coal washing, paper making, etc., can fully meet the requirements of a variety of fields.At the same time using nonionic polyacrylamide and inorganic flocculant (polymeric ferric sulfate, polyaluminium chloride, ferric salts, etc.), can be showed greater effect.
Zwitterionic polyacrylamide (ACPAM) USES: 1, the profile control water plugging agent, and through field experiment, the performance of this kind of new amphoteric ion profile control water plugging agent is higher than other single ion features of profile control water plugging polyacrylamide.2, on many occasions and sewage water, anionic polyacrylamide and cation polypropylene used than single use a kind of ionic polyacrylamide have very significant and synergistic effect.List two if use undeserved, can produce white sediment, lose the use effect.So using composite ion polyacrylamide is better.

聚丙烯酰胺（PAM ）是一种线型高分子聚合物，产品主要分为干粉和胶体两种形式。按其平均分子量可分为低分子量(<100 400="">700万)三类。按其结构又可分为非离子型、阴离子型和阳离子型。阴离子型多为PAM 的水解体(HPAM)。聚丙烯酰胺的主链上带有大量的酰胺基,化学活性很高，可以改性制取许多聚丙烯酰胺的衍生物，产品已广泛应用于造纸、选矿、采油、冶金、建材、污水处理等行业。聚丙烯酰胺作为润滑剂、悬浮剂、粘土稳定剂、驱油剂、降失水剂和增稠剂，在钻井、酸化、压裂、堵水、固井及二次采油、三次采油中得到了广泛应用,是一种极为重要的油田化学品。

洗煤专用聚丙烯酰胺PAM在煤炭行业的洗煤废水、选煤厂的煤泥水、燃煤电厂的地面冲洗废水等都是水与细煤粉的混合物, 其主要特点是浊度高, 固体物粒度细, 固体颗粒表面多带负电荷, 同性电荷间的斥力使这些微粒在水中保持分散状态, 受重力和布朗运动的影响; 由于煤泥水中固体颗粒界面之间的相互作用(如吸附、溶解、化合等), 洗煤废水的性质相当复杂, 不仅具有悬浮液的性质, 还具有胶体的性质。大量的洗煤废水未达标排放, 造成了水体污染、河道淤塞、煤泥流失, 给国家造成了极大的经济损失, 也使得煤炭行业水资源更为紧缺, 严重制约着煤炭生产的发展. 所以开发洗煤废水高效处理的新技术有重要的意义。洗煤专用聚丙烯酰胺为使煤泥水在浓缩池中快速沉淀，保证合格洗水与压滤煤泥生产，使生产高效经济运行，必须选择合适的絮凝剂来加强煤泥水的处理。通过近几年的生产实践证明，聚丙烯酞胺对煤泥水处理效果较好，能加速煤泥的沉降，并有助于压滤生产。