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- The main applications of polyacrylamide(PAM,FLOCCULANT)
With chemical technology matured, high-quality polyacrylamide products has become an important guarantee of oil recovery. Good quality of products and services to meet all three oilfield demand for the creation of “a hundred years oilfields “provided a quality service.
One of the largest uses for polyacrylamide is to flocculate solids in a liquid. This process applies to water treatment, and processes like paper making. Polyacrylamide can be supplied in a powder or liquid form, with the liquid form being subcategorized as solution and emulsion polymer. Even though these products are often called 'polyacrylamide', many are actually copolymers of acrylamide and one or more other chemical species, such as an acrylic acid or a salt thereof. The main consequence of this is to give the 'modified' polymer a particular ionic character.
Another common use of polyacrylamide and its derivatives is in subsurface applications such as Enhanced Oil Recovery. High viscosity aqueous solutions can be generated with low concentrations of polyacrylamide polymers, and these can be injected to improve the economics of conventional water flooding.
The anionic form of cross-linked polyacrylamide is frequently used as a soil conditioner on farm land and construction sites for erosion control, in order to protect the water quality of nearby rivers and streams.
The polymer is also used to make Gro-Beast toys, which expand when placed in water, such as the Test Tube Aliens. Similarly, the absorbent properties of one of its copolymers can be utilized as an additive in body-powder.
The ionic form of polyacrylamide has found an important role in the potable water treatment industry. Trivalent metal salts like ferric chloride and aluminum chloride are bridged by the long polymer chains of polyacrylamide. This results in significant enhancement of the flocculation rate. This allows water treatment plants to greatly improve the removal of total organic content (TOC) from raw water.
Anionic Polyacrylamide APAM is ultra-high molecular weight polyelectrolyte copolymerized by acrylamide and acrylate, molecular weight up to more than 18 million, it has the strong adsorption bridging effect, it can be widely used in coal washing wastewater and industrial wastewater, domestic sewage treatment, strengthen the solid-liquid separation process.