One, product overview
[product name] polyacrylamide abbreviation (amide)
English name] [polyacrylamide (PAM)
[standard] GB / T13940-92
[product] pure white particles
　　 Polyacrylamide and anionic (PAM, HPAM) (CPAM), cationic nonionic (NPAM) is a kind of linear high polymer is a water-soluble polymer, the most widely used one of breed, polyacrylamide and its derivatives can be used as effective flocculating agent, thickening agent, reinforcing agent for paper and a fluid drag reduction agent, widely used in water treatment, paper, petroleum, coal, metallurgy, geology, textile, construction and other industrial sectors.
In two, the technical indexes: the

Name	Molecular weight (million)	Ion ratio (%)	Efficient PH	Solid content	Residual single%	Appearance
Cationic polyacrylamide CPAM	300-1200	20-55	1-14	More than 90	0.05	White granular powder
Anionic polyacrylamide APAM	300-2000	10-50	7-14	More than 90	0.05-0.15	White granular powder
Nonionic polyacrylamide NPAM	200-600	Less than or equal to 3	1-8	More than 90	0.05	White granular powder
Amphoteric polyacrylamide NPAM	1000-6000	5-50	1-14	More than 90	0.05-0.15	White granular powder

Three, polyacrylamide product selection matters needing attention: The selection of polymeric flocculant must give full consideration to the process and equipment requirements.
It can improve the flocculant molecular weight to improve the flocs strength.
The flocculant charge value must be screened by experiment.
The climate change (temperature) impact the selection of flocculant.
According to the process requirements of the floc size selection of flocculant molecular weight.
The treatment must be fully mixed and dissolved sludge flocculating agent.
Four, performance characteristics:
1, polyacrylamide molecules with positive gene, flocculating ability, less dosage, processing effect is obvious.
2, good solubility, high activity, in the body of water formed by coacervation alum, fast sedimentation, other than water soluble polymer purification capacity of 2-3 times. 3, strong adaptability by water pH and temperature, water purification to reach the national drinking water standard, treated water Suspended particles reach the purpose of flocculation , in favor of ion exchange process and preparation of high purity water. 　　　　　　　　　　　　　　　　　　　　
4, corrosion of the small, simple operation, can improve the dosing process of labor intensity and labor conditions.
Five, the scope of application of polyacrylamide
Polyacrylamide molecules with positive gene (CONH2), can be dispersed in a solution of suspended particles in adsorption and bridging, having extremely strong flocculation effect, it can speed up the suspension in the settling of the particles, have a very significant to accelerate solution clarification, promote the filtering effect, so it is widely used for water treatment and power, mining, coal, asbestos products, petroleum chemical industry, papermaking, textiles, sugar, pharmaceutical, environmental protection.
In 1, as a flocculant, mainly used in industry, solid-liquid separation process, including settlement, clarification, concentration and sludge dewatering process, application of the main sectors: city sewage treatment, paper industry, food processing industry, petrochemical industry, metallurgical industry, processing industry, dyeing industry and the sugar industry and various industrial wastewater treatment. In the city sewage and meat, poultry, food processing wastewater treatment process of sludge settling and dewatering of the sludge, through which contains positively charged groups on the sludge in the negatively charged organic colloidal charge neutralization effect of polymer bridge and unite the outstanding function, to colloidal particles aggregate into large flocs, from the suspension separated. Obvious effect, less dosage.
2, in the paper industry can be used as paper dry strength agent, retention agent, filter aid, can greatly improve the paper quality, save cost, improve the production capacity of paper mill. Can be directly compared with inorganic salt ions, fiber and other organic polymer electrostatic bridge role to enhance the paper physical strength, reduce the loss or a fibrous filler, accelerate water filter, strengthening, retention, filtration effect, can also be used in white water treatment, at the same time, in the deinking process has obvious flocculation effect of.
In 3, the fiber slurry (asbestos cement products) can be molded asbestos cement products drainage can be improved, so that the asbestos plate blank strength; the insulating plate, can improve the additives and fiber binding capacity.
4, in the mining, coal industry, can be used for mine drainage, coal washing waste water clarifying agent.
In 5, can be used for dyeing wastewater, leather wastewater, the treatment of oily waste water, make turbidity and color, to achieve the emission standard.
In 6, phosphoric acid purification, contribute to the wet-process phosphoric acid technology in the separation of gypsum.
In 7, for river water water plant water treatment flocculant.
Six, use method and matters needing attention:
1 with 0.2% concentrations of aqueous solutions to practical neutral salt water is appropriate.
2 because of this product applicable water pH range widely, general dosage is 0.1-10ppm (0.1-10mg / L).
3 fully dissolved. Requirements of dissolved when the water stirring up slowly, even after adding powder, prevent the emergence of large flocs and fisheye caused by the phenomenon of blocking the pipeline and pump.
4 stirring speed is 200 rpm is appropriate, no less than 60 minutes, due to increased water temperature 20-30 degrees, can accelerate the dissolution. Liquid temperature should be less than 60 degrees.
5 determine the optimal dosage. Before use, through the experiment to determine the optimal dosage. Because the amount is too low, have no effect, dosage is too high, but have the opposite effect, above a certain concentration, PAM not only not flocculated dispersion stability, instead using.
6 this product should be stored in a cool, dry place, prevent moisture.
7 work place to regular water flushing, keep clean. Because of its high viscosity, scattered PAM underground water ground smooth, prevent the operator slip accident.
8 this product is lined with plastic bag, outer plastic woven bag, bag 25Kg.
In seven, the physical properties and use characteristics 　　
In 1, the physical properties of the molecular formula: (CH2CHCONH2) r
PAM is a kind of linear high polymer, it is easy to dissolve in water, almost insoluble in benzene, ethyl benzene, esters, acetone and other organic solvents, its water solution almost transparent viscous liquid, non-dangerous goods, non-toxic, non-corrosive, solid PAM hygroscopicity, moisture absorption with the ion degree increase increased, PAM good thermal stability; heating to 100 degrees C stability is good, but in 150 DEG above C easily decomposed to produce the nitrogen molecules, in between the imidization and insoluble in water, density (g) ml 23 C 1.302. Glass transition temperature of 153 degrees C, PAM under the action of stress exhibit non-Newtonian flow.
2, the use of property
Flocculation: PAM can make the suspended matter by charge neutralization, bridging adsorption, on flocculation.
Adhesion: through the mechanical, physical, chemical, sticky.
Reducing resistance: PAM can effectively reduce the fluid friction resistance, water with trace PAM 50-80% can drag reduction.
Thickening: PAM in neutral and acidic conditions have a thickening effect, when the pH value at 10 C above the PAM hydrolysis, a reticular structure, will be more obvious thickening.
Eight, Polyacrylamide PAM The synthesis and technology of
PAM: by PAM acrylonitrile and water in the skeleton of copper under the action of catalyst, direct reaction of polyacrylamide by ion exchange polymerization drying, and other processes to finished product, technology introduction as follows:

Raney copper catalyst
In 1, CH2 = CHCN+H2O wet catalytic hydration of CH2 = CHCONH2
In 2, nCH2 = CHCONH2 - polymerization initiator CH2CHCONH2

Nine, packaging and storage precautions:
This product is non-toxic, pay attention to moisture, rain, avoid sun exposure.
Storage period: 2 years, (25kg bag lined with plastic bag kraft paper bags for plastic paste).
Ten, manufacturers introduced
According to different water quality conditions, Le state companies with better and more professional solution to the industry sewage treatment plan, welcome to call the national free consultation service hotline: 400-770-3343