• polyacrylamide

    Polyacrylamide

    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

  • intensified depolymerization of aqueous polyacrylamide

    Intensified depolymerization of aqueous polyacrylamide

    Intensified depolymerization of aqueous polyacrylamide solution using combined processes based on hydrodynamic cavitation, ozone, ultraviolet light and hydrogen peroxide Author links open overlay panel Amrutlal L. Prajapat Parag R. Gogate

  • the rheological properties of aqueous polyacrylamide

    The rheological properties of aqueous polyacrylamide

    Polyacrylamide solutions are extensively used as chemical additives or processing aids in the manufacturing of paper and paperboard products. In addition, they have been widely used in enhanced oil recovery. In this thesis, an experimental work has been carried out to provide a complete and comprehensive study of the rheological properties of polyacrylamide solutions using cone-and-plate

  • preparation of aqueous polyacrylamide solutions

    Preparation of aqueous polyacrylamide solutions

    @article{osti_5302767, title = {Preparation of aqueous polyacrylamide solutions for enhanced oil recovery}, author = {Whiteford, J.M. and Pellon, J.J. and Colman, W.P.}, abstractNote = {A process is described for producing a dilute polyacrylamide solution comprising: (a) providing a polyacrylamide gel of from about 6 to about 15% polymer solids and having a solution viscosity of from about 3

  • enzymatic degradation of polyacrylamide in aqueous

    Enzymatic degradation of polyacrylamide in aqueous

    The oxidative main chain degradation of polyacrylamide initiated by ·OH radicals attacking the polymer in aqueous solution was studied. ·OH radicals were produced by irradiating dilute polymer

  • intensified depolymerization of aqueous polyacrylamide

    Intensified depolymerization of aqueous polyacrylamide

    Intensified depolymerization of aqueous polyacrylamide solution using combined processes based on hydrodynamic cavitation, ozone, ultraviolet light and hydrogen peroxide

  • degradation of polyacrylamide: a review scientific.net

    Degradation of Polyacrylamide: A Review Scientific.Net

    2013-09-01· Water-soluble polyacrylamide is commercially available in different domains of industry, such as water purified, paper making, pharmacy, agriculture and oil exploitation. Especially polyacrylamide is used for polymer displacement, which can enhance oil recovery through increasing the sweeping efficiency. Good economic effects are achieved by the industrial application of polymer

  • polyacrylamide degradation and its implications

    Polyacrylamide degradation and its implications

    2018-09-07· Prajapat, A. L. & Gogate, P. R. Intensified depolymerization of aqueous polyacrylamide solution using combined processes based on hydrodynamic cavitation, ozone,

  • oscillatory and steady shear rheological properties

    Oscillatory and steady shear rheological properties

    1. Rationale. Enhanced Oil recovery (EOR) is one of the most important applications of Polyacrylamide (PAA). Usually 30–50% of the original oil remains in the well even after water flooding, which is recovered using tertiary oil recovery process .Flow of aqueous solutions of polyacrylamide reduces the interfacial tension between the water flood and oil, thereby increasing the sweep efficiency.

  • preparation of copolymers of acrylic acid and acrylamide

    Preparation of Copolymers of Acrylic Acid and Acrylamide

    Preparation of Copolymers of Acrylic Acid and Acrylamide for Copper (II) Capture from Aqueous Solutions by Yudong Zhang A thesis presented to the University of Waterloo in fulfillment of the thesis requirement for the degree of Master of Applied Science in Chemical Engineering Waterloo, Ontario, Canada, 2009 ©Yudong Zhang 2009

  • conformation of polyacrylamide in aqueous solution

    Conformation of polyacrylamide in aqueous solution

    2003-06-27· The viscosity of polyacrylamide (PAM) dilute aqueous solutions with NaCl, glucose, and SDS as additives was measured by Ubbelohde viscometry. There was linear relationship between reduced viscosity vs. PAM concentration in aqueous solutions.

  • reprinted from adsorption from aqueous solutions p.h

    Reprinted from Adsorption From Aqueous Solutions P.H

    '.., Reprinted from "Adsorption From Aqueous Solutions" P.H. Tewari, ed., Plenum, 1981 ADSORPTION OF POLYACRYLAMIDE AND SULFONATED POLYACRYLAMIDE ON Na-KAOLINITE A.F. Hollander. P. Somasundaran and C.C. Cryte School of Engineering and Applied Science Columbia University New York, New York 10027 ABSTRACT

  • tubeless siphon with (dyed) 2% aqueous polyacrylamide

    Tubeless siphon with (dyed) 2% aqueous polyacrylamide

    2016-12-06· 10 Best Side Hustle Ideas: How I Made $600 in One Day Duration: 16:07. Let's Talk Money! with Joseph Hogue, CFA Recommended for you

  • us4605689a preparation of aqueous polyacrylamide

    US4605689A Preparation of aqueous polyacrylamide

    A process is disclosed for converting polyacrylamide gel into dilute aqueous solutions suitable for use in secondary oil recovery. Polyacrylamide gel is initially converted into a slurry of small gel particles in water from which forms a homogeneous solution concentrate which is then readily diluted to give the final drive fluid without any significant polymer degradation.

  • rheological properties of aqueous polyacrylamide

    Rheological properties of aqueous polyacrylamide

    A comprehensive study of the rheological properties of aqueous polyacrylamide solutions was carried out. A RheoStress RS100 Haake rheometer was used in the measurements. The concentration of polyacrylamide ranged from 0.25 to 1.0% by weight. This range is sufficiently wide to cover many of the rheological features of polyacrylamide in the lower

  • hydrophobically modified associative polymer solutions

    Hydrophobically Modified Associative Polymer Solutions

    2002-11-16· Properties of hydrophobically modified polyacrylamide with low molecular weight and interaction with surfactant in aqueous solution. Journal of Applied Polymer Science 2006, 100 (6),4348-4360. DOI: 10.1002/app.23282. Ibnelwaleed A. Hussein, M. Sayem Mozumder, Basel F. Abu Sharkh, Sk. Asrof Ali, Raafat Al-Naizy.

  • ultrafast dynamics in aqueous polyacrylamide solutions

    Ultrafast Dynamics in Aqueous Polyacrylamide Solutions

    We have investigated the ultrafast dynamics of aqueous polyacrylamide ([−CH 2 CH(CONH 2)−] n, or PAAm) solutions using femtosecond optical heterodyne-detected Raman-induced Kerr effect spectroscopy (OHD-RIKES).The observed aqueous PAAm dynamics are nearly identical for both M w = 1500 and 10 000. Aqueous propionamide (CH 3 CH 2 CONH 2, or PrAm) solutions were also

  • the rheological properties of aqueous polyacrylamide

    The Rheological Properties of Aqueous Polyacrylamide

    The Rheological Properties of Aqueous Polyacrylamide Solutions Ali Kreiba A Thesis In The Departrnent of Mechanical Engineering Presented in Partial Fulfilrnent o f the Requirements For the ûegree of Master of Applied Science at Concordia Universrty Montreal, Quebec, Canada O Ali kreiba, 2000 1+1 National Library of Canada Bibliothèque

  • polyacrylamide chemical compound britannica

    Polyacrylamide chemical compound Britannica

    Polyacrylamide does not have the toxic effects of acrylamide monomer. The polymer is hydrophilic (displays an affinity for water) and can form aqueous solutions of very high concentration. Because of their gel-like properties, these solutions are employed as flocculants in the removal of suspended particles from sewage and industrial effluents

  • preparation of cationic polyacrylamide by aqueous two

    Preparation of cationic polyacrylamide by aqueous two

    Preparation of cationic polyacrylamide by aqueous two-phase polymerization J. Xu, W. P. Zhao, C. X. Wang, Y. M. Wu* College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China Received 7 January 2010; accepted in revised form 4 March 2010 Abstract.

  • synthesis and characterization of amphoteric

    Synthesis and characterization of amphoteric

    Synthesis and characterization of amphoteric polyacrylamide by dispersion polymerization in aqueous salts solution Y. Zou, Y.H. Zhang and P.X. He* Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, School of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, P.R. China

  • degradation of polyacrylamide and its derivatives

    Degradation of Polyacrylamide and Its Derivatives

    General features of degradation of polyacrylamide and its anionic and cationic derivatives under the action of radical degradative agents are considered. The molecular weight of these polymers can be controlled by varying the structure and concentration of the degradative agent and salt additions, the concentration, molecular weight, and composition of the initial (co)polymer, and the process

  • prof. mohamed elsayed abdelwahab elshakafi bu.edu.eg

    Prof. Mohamed ElSayed AbdelWahab ElShakafi bu.edu.eg

    The findings resulted in several conclusions regarding the rheological properties of PAM solutions. They have shown a strong shear thinning behavior for all concentrations. Rheological characteristics of aqueous PAM solutions with shear rate ranged between 1.29 s-l and 64.5 s-1 are investigated. A new proposed correlation for the viscosity of

  • chemical modification of acrylamide polymers

    Chemical Modification of Acrylamide Polymers

    Abstract. The world market for synthetic water-soluble polymers was about 950,000 metric tons in 1994. 1 Among them, acrylamide copolymers are used extensively in water treatment as flocculants, coagulants and dispersants. The activities of these polymers are closely related to their molecular weights and structures, especially the nature of the pending groups.

  • doi:10.1246/cl.2011.1074 published on the web september 17

    doi:10.1246/cl.2011.1074 Published on the web September 17

    pH-Responsive Self-assemblyof Partially Hydrolyzed Polyacrylamide in Aqueous Solution Yun Fang,*1,2 Ping-Ping Pang,2 and Zhong-Yu Lai2 1Key Laboratory for Mo lecu ar Eng ineer ng o Po ymers, M n stry o Educat on, Department of Macromolecular Science, Fudan University, Shanghai 200433, P.

  • effect of polyacrylamide on absorption rate of carbon

    Effect of Polyacrylamide on Absorption Rate of Carbon

    Effect of Polyacrylamide on Absorption Rate of Carbon Dioxide in Aqueous Polyacrylamide Solution Containing Monoethanolamine 9 Table 2. Physicochemical and Rheological Properties of CO2 and Aqueous PAM Solution PAM (wt %) Viscosity (Ns/m2) × 10 3 Diffusivity (m2/s) × 109 Solubility (kmol/m3) Density (kg/m ) Rheological properties 0 1 × nK 3

  • us3868997a process for preparing and using aqueous

    US3868997A Process for preparing and using aqueous

    Polymer gel, e.g., polyacrylamide gel, is chilled until frozen and is ground up in a mill. The frozen particles of the polymer gel are then dissolved in water to form an aqueous solution having good efficiency in the recovery of petroleum from formations.

  • die swell using (dyed) 2% aqueous polyacrylamide

    Die swell using (dyed) 2% aqueous polyacrylamide

    2017-01-31· This video is unavailable. Watch Queue Queue. Watch Queue Queue

  • aqueous polymers comparison petrotex

    Aqueous Polymers Comparison Petrotex

    aqueous solution. On the other hand, Chauveteau [11] and Durst et al. [4] studied the flow behavior of polyacrylamide aqueous solution in porous media. They reported significant pressure drops compared to Newtonian solutions. Dupuis et al. [12] studied the rheological behavior of polyacrylamide in aqueous solution of glycerol and water. They

  • adsorption characteristics of polyacrylamide and sulfonate

    Adsorption Characteristics of Polyacrylamide and Sulfonate

    Adsorption Characteristics of Polyacrylamide and Sulfonate-Containing Polyacrylamide Copolymers on Sodium Kaolinite AGNES F. HOLLANDER, P. SOMASUNDARAN, and CARL C. GRYTE,* Department of Chemical Engineering and Applied Chemistry and Henry Krumb School of Mines, Columbia University, New York, New York 10027 Synopsis

  • adsorption characteristics of polyacrylamide and sulfonate

    Adsorption Characteristics of Polyacrylamide and Sulfonate

    Adsorption Characteristics of Polyacrylamide and Sulfonate-Containing Polyacrylamide Copolymers on Sodium Kaolinite AGNES F. HOLLANDER, P. SOMASUNDARAN, and CARL C. GRYTE,* Department of Chemical Engineering and Applied Chemistry and Henry Krumb School of Mines, Columbia University, New York, New York 10027 Synopsis

  • volume 3, issue 11, may 2014 study of miscibility

    Volume 3, Issue 11, May 2014 Study of Miscibility

    Volume 3, Issue 11, May 2014 148 Abstract— The ultrasonic technique provides an effective and reliable tool to investigate properties of polymer solutions in the light of phase separation studies. The propagation of ultrasonic waves and the measurement of their velocity in solution form an

  • the stability of the polyacrylamide flocculant

    The stability of the polyacrylamide flocculant

    CHINAFLOC is a professional manufacturer and supplier of Acrylamide, Polyacrylamide and Flocculant in Qingdao, China. The stability of the polyacrylamide flocculant under various PH value

  • saturation vapor pressure of aqueous polyacrylamide

    Saturation vapor pressure of aqueous polyacrylamide

    2008-04-24· What reference book or handbook or website can I find saturation vapor pressure at 10C,20C,30C,40C and compression ratio at room temperature of 5000mg/L aqueous polyacrylamide solution.

  • thermo-thickening behavior and its mechanism in a

    Thermo-thickening behavior and its mechanism in a

    A novel thermo-thickening behavior of a chitosan-g-polyacrylamide (CS-g-PAM, GPAM) aqueous solution is reported for the first time in this work.The viscosity of GPAM aqueous solutions significantly increases above a critical temperature upon heating, as observed in

  • interaction between aqueous solutions

    Interaction between Aqueous Solutions

    Interaction between Aqueous Solutions of Hydrophobically Associating Polyacrylamide and Dodecyl Dimethyl Betaine Zhongbin Ye,1,2 Guangfan Guo,3 Hong Chen,1 and Zheng Shu 3 1 State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China

  • a cationic polyacrylamide dispersion synthesis by

    A CATIONIC POLYACRYLAMIDE DISPERSION SYNTHESIS BY

    A CATIONIC POLYACRYLAMIDE DISPERSION SYNTHESIS BY DISPERSION POLYMERIZATION IN AQUEOUS SOLUTION Yufeng Wang,a,b,* Kefu Chen,a Lihuan Mo,a,* and Huiren Hu c A cationic polyacrylamide (CPAM) dispersion, the copolymer of acrylamide (AM) and acryloyloxyethyltrimethyl ammonium chloride (DAC), has been synthesized through dispersion polymerization in

  • the method of polyacrylamide production technology

    The method of Polyacrylamide production technology

    Emulsion polymerization is another important synthesis method polyacrylamide, which is a conventional operation in the dispersed aqueous acrylamide solution in an organic solvent such as gasoline, with vigorous stirring, the solution was uniformly dispersed emulsion system is formed, followed by the addition of acrylamide initiator reaction of polyacrylamide.

  • adsorption of pb(ii) on polyacrylamide grafted tin(iv

    Adsorption of Pb(II) on polyacrylamide grafted tin(IV

    for the removal ofPb(II) ions from aqueous solutions onto polymer grafted hydrous tin{IV) oxide gel have been studied. Experimental' Procedure Sorbent The starting material, hydrous tin{IV) oxide gel of relatively uniform and narrow:~ particle size distribution was first prepared by the reported methods. The gelwas grafted with polyacrylamide by

  • prof. mostafa mohammed yaseen elbakry ::

    Prof. Mostafa Mohammed Yaseen Elbakry ::

    The findings resulted in several conclusions regarding the rheological properties of PAM solutions. They have shown a strong shear thinning behavior for all concentrations. Rheological characteristics of aqueous PAM solutions with shear rate ranged between 1.29 s-l and 64.5 s-1 are investigated. A new proposed correlation for the viscosity of

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