specifiion polyacrylamide thickener used anionic polymer
specifiion polyacrylamide thickener used anionic polymer
specifiion polyacrylamide thickener used anionic polymer
specifiion polyacrylamide thickener used anionic polymer
specifiion polyacrylamide thickener used anionic polymer
water soluble polymer flocculants: synthesis, characterization, and

Water Soluble Polymer Flocculants: Synthesis, Characterization, and

They are used to flocculate positively charged particles in many industrial units, such as municipal wastewaters and sludge dewatering. 34 Acrylic acid (AA) is a commonly used anionic monomer, and anionic derivatives of polyacrylamide can also be obtained by post-polymerization hydrolysis with an alkali such as NaOH to create carboxyl groups on the polymer chains.

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improving flocculation performance of copper flotation

Improving Flocculation Performance of Copper Flotation

In experiments, five polymers composed of high molecular weight polyacrylamide were used. Table 1 contains a list of each polymer¡¯s characteristics. Prior to the flocculation experiments, the stock solution of the polymer with a concentration of 0.5% w/v was prepared. 0.5 g polymer was added to the distilled water and mixed for 1 h in a magnetic stirrer at room temperature.

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the effect of cations on the activity of anionic polyacrylamide

The effect of cations on the activity of anionic polyacrylamide

Henderson and Wheatley, 1987a, Henderson and Wheatley, 1987b showed that while a 0.02% w/v solution of a polyacrylamide homopolymer was completely unaffected by the presence of up to 0.1 M Na +, K +, Ca 2+, Mg 2+, Cu 2+, Zn 2+, Pb 2+, Al 3+ and Fe 3+, several of these ions were extremely detrimental to the activity of a 30% anionic copolymer.

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anionic polyacrylamide - santos

ANIONIC POLYACRYLAMIDE - Santos

Molecular weight: 1,000,000 to >50,000,000 g/mol for polyacrylamide copolymers used as flocculants (Lyons and Vasconcellos, 1997) Synonyms: Anionic polyacrylamide 3 PHYSICO-CHEMICAL PROPERTIES Polyacrylamide polymers can exist in cationic, anionic or non-ionic forms, depending on their ionic charge.

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thickening mechanism of water-soluble polymer in the

Thickening mechanism of water-soluble polymer in the

Introduction In enhanced oil recovery (EOR), water-soluble polymer is widely used as thickening agent to improve mobility control ability [ 1, 2, 3 ]. Partially hydrolyzed polyacrylamide (HPAM) is the most commonly used polymer for its high viscosity in low salinity water [ 4, 5 ].

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(pdf) treatment of pulp and paper mill wastewater by polyacrylamide

(PDF) Treatment of pulp and paper mill wastewater by polyacrylamide

Polyacrylamide (PAM), a synthetic linear polymer with a high molecular weight, is extensively utilized as a viscosity enhancer, flocculant, or soil conditioning agent (Xiong et al. 2018) in

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panama specification of anionic polymer polyacrylamide use for thickener

panama specification of anionic polymer polyacrylamide use for thickener

Anionic Polyacrylamide ¨C Youju chemical -Polyacrylamide. Anionic Polyacrylamide Anionic polyacrylamide is as water-soluble synthetic polymer ,soluble in water easily and insoluble in organic solvents, such as ethanol and acetone.which has the properties of flocculation ,thickening , shear ,resistance reducing and dispersion ,etc.

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synthesis and performance evaluation of a novel high-temperature ... - mdpi

Synthesis and Performance Evaluation of a Novel High-Temperature ... - MDPI

Presently, the most widely used thickener is synthetic polyacrylamide [24,25]. However, with the increasing use of acidizing fracturing in high temperatures and deep wells in carbonate reservoirs, the amide group in polyacrylamide undergoes chemical degradation, causing molecular chains to shear, reducing molecular weight and hydrodynamic volume, and resulting in a decrease in viscosity, as

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polyacrylamide - an overview | sciencedirect topics

Polyacrylamide - an overview | ScienceDirect Topics

Anionic polyacrylamides (aPAMs) are used in the construction field as a thickener or flocculent. Their chemical structure is shown in Figure 9.30 . APAMs are synthesized by free radical polymerization of acrylamide and acrylic acid salts or by partial hydrolysis of non-ionic polyacrylamide ( Cheng 2004; Bessaies-Bey et al., 2015 ).

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polyacrylamide degradation and its implications in environmental

Polyacrylamide degradation and its implications in environmental

The hydrolyzed form of polyacrylamide (HPAM), a co-polymer of acrylamide and acrylic acid, is the most widely used anionic PAM in oil and gas development as well as in soil conditioning. 1,9,12,21

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