• flocculation of aqueous kaolin suspension using a

    Flocculation of aqueous kaolin suspension using a

    Acacia nilotica gum (NG) was blended with high hydrolyzed grade biodegradable poly (vinyl alcohol) (M n ¯ 14,000) in different mass proportions to produce a green and efficient flocculant for separartion of a low concentration of kaolin particles (3 mass%) from its suspension. Flocculation efficacy (settling time and turbidity number) was optimized with respect to flocculant dose, PVA-NG

  • removal of kaolin from aqueous suspension using a

    Removal Of Kaolin From Aqueous Suspension Using A

    2018-07-17· These findings are described in the article entitled Flocculation of aqueous kaolin suspension using a biodegradable flocculant system of ply (vinyl alcohol)- Acacia nilotica gum blends, recently published in the journal Applied Clay Science.

  • the flocculation of kaolin aqueous dispersion by two

    The flocculation of kaolin aqueous dispersion by two

    Kaolin aqueous suspension was used as a model system for the study of the flocculation processes in aqueous and aqueous-salt solutions at various NaCl concentrations (0.001–0.2 mol/l), because it is stable over a large period of time. The average radius of kaolin particles is 15 μm, and the electrokinetic potential (ζ) is −11 mV. 2.2

  • flocculation of aqueous kaolin suspension using a

    Flocculation of aqueous kaolin suspension using a

    Request PDF Flocculation of aqueous kaolin suspension using a biodegradable flocculant system of poly (vinyl alcohol)- Acacia nilotica gum blends Acacia nilotica gum (NG) was blended with high

  • flocculation of kaolin from aqueous suspension using low

    Flocculation of kaolin from aqueous suspension using low

    Flocculation of kaolin suspension was performed using both CP‐8020 and CP‐4060 and the flocculation was correlated to the zeta potential and MW of the copolymers. The optimum dosages of flocculants were determined. The mechanism of flocculation was discussed in terms of charge neutralization and bridging. The flocs of kaolin were

  • flocculation and dewatering of kaolin suspensions in the

    Flocculation and Dewatering of Kaolin Suspensions in the

    Flocculation, as a result of the interaction between non-ionic polyacrylamide polymer (PAM-N) and kaolin surface in aqueous suspension, has been discussed both in the absence and in the presence

  • flocculation of kaolin from aqueous suspension using

    Flocculation of kaolin from aqueous suspension using

    Flocculation of kaolin from aqueous suspension using low dosages of acrylamide‐based cationic flocculants P. R. Suresha Polymer Science and Engineering Division, CSIR‐National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 411008 India

  • effect of coagulants and flocculants on dewatering

    EFFECT OF COAGULANTS AND FLOCCULANTS ON DEWATERING

    Natural pH of prepared kaolin suspensions was 7.86. The pH profiles of kaolin suspension (2.5 wt.%) as a function of time is presented in Figure 1 for an initial pH of natural, acidic (pH 3) and basic medium (pH 11). When the initial pH of kaolin suspension is adjusted to 3, the suspension

  • gb8618339d0 flocculation of aqueous suspensions

    GB8618339D0 Flocculation of aqueous suspensions

    flocculation aqueous suspensions suspensions aqueous Prior art date 1986-07-28 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the

  • weak flocculation of aqueous kaolin suspensions

    Weak Flocculation of Aqueous Kaolin Suspensions

    The present work is an investigation of the effect of NaCMC with different viscosities (molecular weights) on the stability of aqueous kaolin suspensions at pH 5-6. The stabilizing effect of polymers was characterized by measuring the sedimentation volumes (for 2.5% kaolin suspensions) and some important rheological parameters (for 40% and 50%

  • flocculation of a high-turbidity kaolin suspension using

    Flocculation of a High-Turbidity Kaolin Suspension Using

    2.3. Flocculation Experiments Half a gram of kaolin was prepared in 1 L of distilled water as synthetic wastewater. The pH of simulated wastewater was adjusted by 0.1 mol/L HCl or 0.1 mol/L NaOH aqueous solutions. Jar tests were conducted using 1 L jars in a stirring

  • flocculation and dewatering of kaolin deepdyve

    Flocculation and dewatering of kaolin DeepDyve

    2002-09-01· Flocculation, as a result of the interaction between non-ionic polyacrylamide polymer (PAM-N) and kaolin surface in aqueous suspension, has been discussed both in the absence and in the presence of surfactants namely, cationic cetyl trimethyl ammonium bromide (CTAB), anionic sodium dodecyl sulphate (SDS) and non-ionic TX 100. The results of separation properties have been

  • the flocculation of kaolin aqueous dispersion

    The flocculation of kaolin aqueous dispersion

    2017-02-20· Read "The flocculation of kaolin aqueous dispersion by two cationic polyelectrolytes, Colloids and Surfaces A: Physicochemical and Engineering Aspects" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

  • flocculation of kaolinite suspensions in water by coconut

    Flocculation of Kaolinite Suspensions in Water by Coconut

    The flocculation of kaolinite colloidal particles was carried out at pH = 6 in suspension of initial turbidity varying between 24 NTU and 102 NTU by a casein extracted from Cocos nucifera cream. During Jar-test essays, 90% to 99% of colloids were eliminated in the sediments. The optimal doses of

  • effect of molecular weight of poly-(1,2 springerlink

    Effect of Molecular Weight of Poly-(1,2 SpringerLink

    Effect of molecular weight of poly-(1,2-dimethyl-5-vinylpyridinium methyl sulfate) on flocculation of aqueous kaolin suspension is studied.

  • the deflocculation of kaolin suspensions the effect

    The deflocculation of kaolin suspensions the effect

    decrease viscosity of original aqueous kaolin suspensions. Only additives with the presence of Ca 2 + ions play an opposite role, working as flocculants and increasing suspension viscosity [18]. The objective of this work is to study systematically the effect of additives on rheological behavior of kaolin suspensions. The results of viscosity measurements carried out for inorganic (five

  • flocculation of kaolin suspension with graft copolymers

    Flocculation of Kaolin Suspension with Graft Copolymers

    Flocculation of Kaolin Suspension with Graft Copolymers of Ionen. Hajime SERITA 1), Koichi MURAI 1) 1) Department of Material Engineering and Applied Chemistry, Mining College, Akita University Released 2010/11/22 received 1992/12/04 accepted 1993/02/02 Keywords: Graftcopolymer, Ionen Polymer, Flocculating Ability, Flocculating Effect, ζ-Potential, Flocculating Preperty, Polymer

  • deflocculation of kaolin suspensions the effect

    Deflocculation of Kaolin Suspensions The Effect

    ity of aqueous kaolin suspensions. Only the additives with the presence of Ca2+ ions play an opposite role, increasing suspension viscosity [18]. Settling of kaolin suspensions is widely studied as a separation process connected with flocculated kaolin suspensions [9, 21– 26]. A typical observed parameter is the settling time

  • us patent for method of treating an aqueous suspension

    US Patent for Method of treating an aqueous suspension

    A method of treating a kaolin particulate material to improve one or more of its properties by removal of impurity particles therein which includes: producing a dispersed aqueous suspension of a kaolin particulate material containing at least 0.1% by weight, based on the dry weight of the kaolin particulate material of separable particulate impurity; diluting said dispersed aqueous suspension

  • study of kaolin for synthesis of aluminum chloride

    Study of Kaolin for Synthesis of Aluminum Chloride

    A physico-chemical method which is flocculation was used in this study to flocculate kaolin suspension. The effect of pH on the flocculation of kaolin suspension was studied between pH 5 to 7.5. The result showed the aluminium chloride-polyacrylamide (AlCl3-PAM) hybrid polymer was able to remove >99% of turbidity at pH 6.5 using 5 mg/L of dosage.

  • the flocculation of kaolin with polyacrylamides core

    The flocculation of kaolin with polyacrylamides CORE

    (1972). The optimum flocculant concentration for effective flocculation of china clay in aqueous suspension. (1960). The preparation of clay suspensions with specified ionic composition by means of exchange resins. (1977). The role of chemical complexing in the formation and stability of colloidal dispersions. (1980). The Rule of Shulze and

  • method of treating an aqueous suspension of kaolin

    Method of treating an aqueous suspension of kaolin

    2006-06-22· A method for the treatment of kaolin particulate material comprising: providing a dispersed aqueous suspension comprising kaolin particulate material and having a pH of at least about 7.5; selecting at least one selective flocculation polymer, wherein said at least one selective flocculation polymer has a measured anionicity ranging from about 1% to about 12%, such as from about 4.5% to

  • method of treating an aqueous suspension of kaolin

    Method of treating an aqueous suspension of kaolin

    2013-10-01· A method of treating a kaolin particulate material to improve one or more of its properties by removal of impurity particles therein which includes: producing a dispersed aqueous suspension of a kaolin particulate material containing at least 0.1% by weight, based on the dry weight of the kaolin particulate material of separable particulate impurity; diluting said dispersed aqueous suspension

  • flocculation

    Flocculation

    Flocculation, in the field of chemistry, is a process in which colloids come out of suspension in the form of floc or flake, either spontaneously or due to the addition of a clarifying agent. The action differs from precipitation in that, prior to flocculation, colloids are merely suspended in a liquid and not actually dissolved in a solution

  • regularities of flocculation of aqueous springerlink

    Regularities of flocculation of aqueous SpringerLink

    The regularities of the flocculation of kaolin suspensions with binary mixtures of cationic polyelectrolytes are studied. The relationship between the viscosity of flocculant solutions and the conditions of efficient flocculation is studied. It is established that an increase in the sedimentation rate upon the application of binary mixtures of

  • ca2370506a1 a method of treating an aqueous

    CA2370506A1 A method of treating an aqueous

    A method of treating a kaolin particulate material to improve its properties by removal of impurities which includes the steps of: (a) producing a dispersed aqueous suspension of a kaolin particulate material containing at least 0.1 % by weight, based on the dry weight of the kaolin particulate material, of separable impurity by adding a dispersing agent to the kaolin particulate material to

  • regularities of flocculation of aqueous springerlink

    Regularities of flocculation of aqueous SpringerLink

    The regularities of the flocculation of kaolin suspensions with binary mixtures of cationic polyelectrolytes are studied. The relationship between the viscosity of flocculant solutions and the conditions of efficient flocculation is studied. It is established that an increase in the sedimentation rate upon the application of binary mixtures of

  • method of treating an aqueous suspension of kaolin

    Method of treating an aqueous suspension of kaolin

    Method of treating an aqueous suspension of kaolin Abstract. A method of treating a kaolin particulate material to improve its properties by removal of impurities which includes the steps of: (a) producing a dispersed aqueous suspension of a kaolin particulate material containing at least 0.1% by weight, based on the dry weight of the kaolin particulate material, of separable impurity by

  • flocculation of a high-turbidity kaolin suspension using

    Flocculation of a High-Turbidity Kaolin Suspension Using

    The flocculation performance of flocculant PAMD with a high cationic degree was investigated in the purification of high-turbidity water. The flocculation mechanism was correspondingly studied and summarized based on Fourier transform-infrared (FTIR) analysis. Finally, the results of an experimental simulation using the response surface method

  • effects of polymer molecular weight on adsorption

    Effects of Polymer Molecular Weight on Adsorption

    and flocculation in aqueous kaolinite suspensions dosed with a series of nonionic PAMs with different MWs. First, the hypothesis that the PAM adsorption capacity increased with increasing PAM MW was tested using bottle-point adsorption tests. Second, the effect of PAM MW on polymeric chain reconfiguration and particle flocculation was investigated in shear-controlled flocculation tests. It

  • suspensions: flocculated suspensions:

    Suspensions: Flocculated suspensions:

    2010-11-01· The following example illustrates how suspensions may be prepared by controlled flocculation procedures. The weting agent, polysorbate (not more than 0.1-0.2%w/v of the final conc) is dissolved thoroughly in approximately half the final volume of aqueous vehicle. An anionic surfactant such as docusate Na USP may also be used as a wetting agent

  • flocculation performance of modified chitosan in an

    Flocculation performance of modified chitosan in an

    Flocculation properties and adsorption kinetics of cationic starches in kaolin suspensions. pdf 248 Кб Flocculation of montmorillonite by some hydrophobically modified polycations containing quaternary ammonium salt groups in the backbone.

  • influence of ph, electrolytes and polymers on flocculation

    Influence of pH, Electrolytes and Polymers on Flocculation

    largest floc size of aqueous suspensions of Lampang kaolin showed at pH 2.0. At lower pH values (pH 2.0 and pH 4.0), there were larger floc than at pH 8.0 and pH 10.0. Because of flocculation is expected to begin at lower pH values, namely edge to face that Table. 1. Floc size of kaolin flocculation as function of pH, electrolytes and polymers.

  • an effective flocculation method to the kaolin

    An Effective Flocculation Method to the Kaolin

    Kaolin wastewater flocculation test outcome reveals that the PAD with high cationic degree and intrinsic viscosity could boost the charge neutralization and bridging capability. Consequently, the result is an excellent flocculation performance of treating kaolin wastewater.

  • sedimentation behavior of a fine kaolinite in the

    SEDIMENTATION BEHAVIOR OF A FINE KAOLINITE IN THE

    ceramics, the flocculation and dispersion behavior of kaolinite in aqueous media has been studied exten- sively. When an electrolyte is added, the flocculation of a kaolinite suspension depends on the valence and the nature of the ions, ionic strength, and pH (Hiemenz,

  • deflocculation of kaolin suspensions the effect

    Deflocculation of kaolin suspensions The effect

    ume fraction of solid particles in the suspension [3]. Only few works deal with detailed viscosity mea-surements of aqueous kaolin suspensions, see [12] for the primary suspensions and [13– 20] for the suspen-sions with additives. Unfortunately, these works are 1 INTRODUCTION Reducing viscosity by addition of a small amount of suit-

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