• optimizing the poly ethylene oxide flocculation process

    Optimizing the Poly Ethylene Oxide Flocculation Process

    Optimizing the Poly Ethylene Oxide Flocculation Process for Isolating Lignin of Prehydrolysis Liquor of a Kraft-Based Dissolving Pulp Production Process Haiqiang Shi * † ‡,Pedram Fatehi * §,Huining Xiao ‡,and Yonghao Ni ‡

  • optimizing the poly ethylene oxide flocculation process

    Optimizing the Poly Ethylene Oxide Flocculation Process

    In this work, poly ethylene oxide (PEO) with various molecular weights (MW)s was employed to separate the lignin of prehydrolysis liquor (PHL) of a kraft-based dissolving pulp process. The results revealed that, the higher the MW and concentration of PEO in the PHL at pH 2, the higher are the removals of lignin and chemical oxygen demand (COD) but with a marginal removal of sugars

  • optimizing the poly ethylene oxide flocculation process

    Optimizing the Poly Ethylene Oxide Flocculation Process

    In this work, poly ethylene oxide (PEO) with various molecular weights (MW)s was employed to separate the lignin of prehydrolysis liquor (PHL) of a kraft-based dissolving pulp process.

  • optimizing peo flocculation process for isolating lignin

    Optimizing PEO flocculation process for isolating lignin

    Request PDF Optimizing PEO flocculation process for isolating lignin of pre-hydrolysis liquor of kraft-based dissolving pulp production process In this work, poly ethylene oxide (PEO) with

  • factors affecting the size of aqueous poly(vinylphenol-co

    Factors Affecting the Size of Aqueous Poly(vinylphenol-co

    Optimizing the Poly Ethylene Oxide Flocculation Process for Isolating Lignin of Prehydrolysis Liquor of a Kraft-Based Dissolving Pulp Production Process. Industrial & Engineering Chemistry Research 2012, 51 (14),5330-5335. DOI: 10.1021/ie300141k. Dan Zhang and Robert Pelton .

  • preparation of flocculant for optimizing glycol lignin

    Preparation of flocculant for optimizing glycol lignin

    lignin. The flocculation behavior was interpreted by phase separation theory at a lower critical solution temperature (LCST). Keywords Lignin · Polyethylene glycol (PEG) · Acid-catalyzed solvolysis · Flocculant · Glycidyltrimethylammonium chloride (GTA) Introduction The Paris agreement was adopted in COP21, and limiting the

  • (pdf) mechanisms of flocculation with poly(ethylene

    (PDF) Mechanisms of flocculation with poly(ethylene

    Poly(ethylene oxide), a widely used flocculation agent, has its efficiency enhanced by various compounds known as cofactors. The cofactors are known to form an association complex with poly

  • preparation of flocculant for optimizing glycol lignin

    Preparation of flocculant for optimizing glycol lignin

    The adsorption of high MW polyethylene oxide by negatively charged particles of flotation refuse from a coal washing plant and its effect on refuse flocculation have been investigated. A close

  • factors affecting the size of aqueous poly(vinylphenol-co

    Factors Affecting the Size of Aqueous Poly(vinylphenol-co

    Optimizing the Poly Ethylene Oxide Flocculation Process for Isolating Lignin of Prehydrolysis Liquor of a Kraft-Based Dissolving Pulp Production Process. Industrial & Engineering Chemistry Research 2012, 51 (14),5330-5335. DOI: 10.1021/ie300141k. Dan Zhang and Robert Pelton .

  • flocculation of papermaking fines by poly(ethylene

    Flocculation of papermaking fines by poly(ethylene

    In this paper, a novel process was developed by combining the acidification and poly ethylene oxide (PEO) flocculation concepts to improve the lignin removal. The results showed that the lignin

  • preparation of flocculant for optimizing glycol lignin

    Preparation of flocculant for optimizing glycol lignin

    Flocculation test. PEG400-lignin was used for the flocculation test as a suspension (pH 6.5) including small particles of glycol lignin. The required amount of the cationized glycol lignin (0.1, 0.5, and 1.0 wt% based on solid content of the suspension) was added to the suspension in

  • optimizing a world-scale petrochemical plant

    Optimizing a World-Scale Petrochemical Plant

    Optimizing a World-Scale Petrochemical Plant Uberne A. Tapia . 2 2012 Business Optimization Conference Agenda •The need for Optimization •RPMS Project Implementation Methodology •RPMS Solution Blue Print •RPMS Model Development •RPMS Model Validation & Calibration •Benefits •Next Steps . 3 2012 Business Optimization Conference Petrochemical Complex Process Flow Diagram .

  • optimization of coagulation-flocculation process

    Optimization of coagulation-flocculation process

    2017-02-10· Read "Optimization of coagulation-flocculation process for treatment of a colloidal suspension containing dolomite/clay/borax, International Journal of Mineral Processing" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

  • coagulation–flocculation as an alternative way to reduce

    Coagulation–Flocculation as an Alternative Way to Reduce

    2019-08-14· Pulp and paper mills generate a huge amount of wastewater and some of them, especially non-wood paper mills, do not possess recovery systems. In this research work, the effectiveness of coagulation–flocculation using poly (ethylene oxide), poly aluminium chloride and poly (dimethyl diallyl ammonium chloride) for the treatment of a black liquor obtained from a pulp mill (with wheat

  • preparation of flocculant for optimizing glycol lignin

    Preparation of flocculant for optimizing glycol lignin

    lignin. The flocculation behavior was interpreted by phase separation theory at a lower critical solution temperature (LCST). Keywords Lignin · Polyethylene glycol (PEG) · Acid-catalyzed solvolysis · Flocculant · Glycidyltrimethylammonium chloride (GTA) Introduction The Paris agreement was adopted in COP21, and limiting the

  • clay flocculant metallurgist & mineral processing engineer

    Clay Flocculant Metallurgist & Mineral Processing Engineer

    Polyethylene Oxide as a Flocculant for Clay. The polymerization of ethylene oxide involves the opening of the highly reactive and strained three-membered ring to form a much more stable and less reactive chain structure. This is an addition reaction that results in molecules comprised of repeating [-CH2-CH2-O-] units as shown in figure 3.

  • optimization of coagulation-flocculation process

    Optimization of coagulation-flocculation process

    2017-02-10· Read "Optimization of coagulation-flocculation process for treatment of a colloidal suspension containing dolomite/clay/borax, International Journal of Mineral Processing" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

  • challenges in developing polymer flocculants to improve

    Challenges in developing polymer flocculants to improve

    Western Canada’s oil sands hold the third-largest hydrocarbon deposits in the world. Bitumen, a very heavy petroleum, is currently recovered by surface mining with warm water or in situ. Recovery processes that use organic solvents are being developed to reduce water usage and tailings production. While solvent-based methods can effectively extract bitumen, removal of residual fine solids

  • interaction of poly(acrylic acid) and aluminum oxide

    Interaction of poly(acrylic acid) and aluminum oxide

    Poly(ethylene oxide) with different molecular weights were purchased from Malvern Instruments Ltd and used for the calibration of the gel permeation chromatography. 2.2. Characterization of aluminum oxide particles. The hydrodynamic diameter (d h) of aluminum oxide particles were measured by dynamic light scattering analyzer (Nano Brook

  • ethylene production

    Ethylene Production

    made from ethylene in order to produce these end products are polyethylene, ethylene dichloride, ethylene oxide, ethylbenzene, and vinyl acetate, just to name a few. Global ethylene capacity utilization has remained above 90% since 2004 until 2008's economic meltdown. In 2007, 2 million tonnes per year (tpy) of ethylene capacity was added

  • optimization of coagulation-flocculation process

    Optimization of coagulation-flocculation process

    Furthermore, Gür et al. (1996) compared the performances of the polyethylene oxide (PEO)- and polyacrylamide (PAM)-types flocculants. They found out that PEO-based flocculant produced clearer supernatants, particularly in the flocculation of dolomite rich suspensions.

  • alginate-poly(ethylene) glycol and poly(ethylene) oxide

    Alginate-Poly(Ethylene) Glycol and Poly(Ethylene) Oxide

    Chapter 16 Alginate-Poly(Ethylene) Glycol and Poly(Ethylene) Oxide Blend Materials Author links open overlay panel Fatima Zia 1 Muhammad N. Anjum 1 Muhammad J. Saif 1 Tahir Jamil 2 Kausar Malik 2 Shazia Anjum 3 Ismat BiBi 3 Muhammad A. Zia 4

  • titanium dioxide separation from water by peg

    Titanium dioxide separation from water by PEG

    The separation process, followed by optical density and zeta potential measurements, was investigated as a function of some parameters such as the settling time, the polymer dose, the salt nature and concentration as well as polymer structure (ethylene oxide (EO) content).

  • us20140158634a1 polymer blends for flocculation

    US20140158634A1 Polymer blends for flocculation

    Polymer flocculants are described comprising blends of high molecular weight polyethylene oxide and high molecular polyacrylamides. When introduced in desired amounts and with desired molecular weight ranges, excellent flocculation function is found that can be used to reduce polymer consumption to obtain a desired purity of clarified waste water.

  • water soluble polymer flocculants: synthesis

    Water Soluble Polymer Flocculants: Synthesis

    Recently, Hripko et al. synthesized a series of partially hydrophobic copolymers of poly(AM‐co‐poly(ethylene oxide methyl ether methacrylate)) with different comonomer compositions and different lengths of the hydrophobic chain (ethylene oxide)

  • flocculation of carbon black in filled rubber compounds. i

    Flocculation of carbon black in filled rubber compounds. I

    It has been found that appreciable carbon black flocculation can occur in filled rubber stocks during storage or vulcanization in the absence of shear. The kinetics of this flocculation process were studied by means of low strain dynamic mechanical property and electrical conducitvity measurements. The results showed the rate of flocculation to

  • j. braz. chem. soc. printed in brazil ©2019 sociedade

    J. Braz. Chem. Soc. Printed in Brazil ©2019 Sociedade

    of polyacrylamide-poly(ethylene oxide methyl ether methacrylate) copolymers (PAM-g-PEOMA) 10 (Figure 2). A central composite design of experiments was used to study how the microstructure of PAM--PEOMA g (PEOMA/PAM ratio, molecular weight and PEOMA length) affected the flocculation and dewatering of MFT. Adding a large fraction of hydrophobic

  • alginate-poly(ethylene) glycol and poly(ethylene) oxide

    Alginate-Poly(Ethylene) Glycol and Poly(Ethylene) Oxide

    Chapter 16 Alginate-Poly(Ethylene) Glycol and Poly(Ethylene) Oxide Blend Materials Author links open overlay panel Fatima Zia 1 Muhammad N. Anjum 1 Muhammad J. Saif 1 Tahir Jamil 2 Kausar Malik 2 Shazia Anjum 3 Ismat BiBi 3 Muhammad A. Zia 4

  • novel bacteria-immobilized cellulose

    Novel Bacteria-Immobilized Cellulose

    2019-12-12· Novel Bacteria-Immobilized Cellulose Acetate/Poly(ethylene oxide) Nanofibrous Membrane for Wastewater Treatment Skip to main content Thank you for visiting nature.

  • ethylene oxide $80,200 jobs, employment indeed

    Ethylene Oxide $80,200 Jobs, Employment Indeed

    21 Ethylene Oxide $80,200 jobs available on Indeed. Apply to Process Engineer, Research Chemist, Operations Manager and more!

  • pulpo y papel details dupont industrial cellulosics por

    Pulpo y papel Details DuPont Industrial Cellulosics por

    It is important that chemical additives, fillers and fibers are retained on the paper machine web during the dewatering process. However, these colloidal particles are often too small to retain on the web during the paper formation. To aid retention, various high molecular weight water-soluble polymers are being applied as flocculants. Poly(ethylene oxide) is an effective retention aid

  • production of ethylene oxide getdocumentation.info

    Production of Ethylene Oxide getdocumentation.info

    In addition to the desired reaction, combustion reactions for both ethylene and ethylene oxide occur, and these are undesirable. Specific Objectives of this Project The main objective of this projects is to optimize the feed section of the ethylene oxide process. In order to do this, you will need to establish the flows and temperatures of all

  • us5342538a liquid suspension of polyethylene oxide

    US5342538A Liquid suspension of polyethylene oxide

    US5342538A US07/942,514 US94251492A US5342538A US 5342538 A US5342538 A US 5342538A US 94251492 A US94251492 A US 94251492A US 5342538 A US5342538 A US 5342538A Authority US United States Prior art keywords polyethylene oxide weight flocculating agent range suspension Prior art date 1991-06-17 Legal status (The legal status is an assumption and is not a legal conclusion.

  • process mass spectrometry in hydrocarbon processing

    Process Mass Spectrometry in Hydrocarbon Processing

    Backed by more than 30 years of process mass spectrometry success, the next-generation Thermo Scientific Prima PRO and Sentinel PRO have been engineered to meet a number of challenging hydrocarbon applications, including: • Natural gas processing • Olefin production • Cracking furnace optimization • Ethylene oxide / ethylene glycol

  • dispersion polymerization of 2-hydroxyethyl methacrylate

    Dispersion polymerization of 2-hydroxyethyl methacrylate

    2004-09-16· 1. Introduction. The use of supercritical carbon dioxide (scCO 2) as an attractive alternative to traditional liquid solvents for polymer synthesis is an interesting topic in both academia and industry,,,,,because of its advantages such as inexpensive, relatively nontoxic, nonflammable, environmentally benign and tunable physical properties. Due to the solubility of a wide range of

  • polyelectrolyte complexes in flocculation applications

    Polyelectrolyte Complexes in Flocculation Applications

    2013-08-24· Acknowledgements. We are indebted to many long-term collaborators and colleagues, especially to Dr. Stela Dragan and her group (Institute Petru Poni, Iasi, Romania) and to Dr. Svetlana Bratskaya (Far East Department of Russian Academy of Sciences, Institute of

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