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5.907 Aktuelle Fachpublikationen aus der Branche Verfahrenstechnik

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Photoelectrocatalytic oxidation of methyl orange on TiO2 nanotubular anode using a flow‐cell

03.07.2015 | María José Martín de Vidales, Laura Mais, Cristina Sáez, Pablo Cañizares, Frank C. Walsh, Manuel A. Rodrigo, Christi ..., Chemical Engineering & Technology, 2015

Abstract Methyl orange from water was removed by photocatalytic anodic oxidation method using a titanium dioxide array surface. The coating was prepared by anodising a titanium plate using NH4F as electrolyte followed by heat treatment to render a photocatalytic surface under UV light. SEM ...

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Continuous modification of polypropylene via photoinitiation

03.07.2015 | Yasaman Amintowlieh, Costas Tzoganakis, Alexander Penlidis, Polymer Engineering and Science, 2015

A twin screw extruder was used for continuous modification of polypropylene (PP) via UV radiation. Long chain branches (LCBs) were incorporated in the PP backbone to modify its rheological properties. Benzophenones (BPH) as photoinitiator and trimethylolpropane triacrylate (TMPTA) as coagent ...

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High‐performance filaments by melt spinning low viscosity nylon 6 using horizontal isothermal bath process

03.07.2015 | Mesbah Najafi, Richard Kotek, Polymer Engineering and Science, 2015

Several techniques and treatments have been developed for the production of high‐performance nylon‐6 fibers. The inherent problems of low productivity, high production cost, and high energy consumption, complexity of chemical reaction, mass transfer, and waste recovery systems make most of them ...

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Effects of particle size and shape on solids holdups distributions modelling in a LSCFB reactor using abductive network

03.07.2015 | Shaikh A. Razzak, Syed M. Rahman, Mohammad M. Hossain, Jesse Zhu, The Canadian Journal of Chemical Engineering, 2015

The Abductive Network (AN), a group method data handling (GMDH) algorithm‐based self‐organizing model, was applied to study the solids holdup distribution of a liquid‐solid circulating fluidized bed (LSCFB) system. At first, the AN model was trained with experimental data sets obtained from a ...

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Intrinsic Kinetics of Esterification of Fatty Acids Catalyzed by Supported Ionic Liquid Catalysts

02.07.2015 | Parminder Kaur Khabinder Singh Heer, Deepak D. Chabukswar, Vilas G. Gaikar, Chemical Engineering & Technology, 2015

Abstract Esterification of palm fatty acid distillate with methanol was investigated for intrinsic kinetics and regarding the effect of catalyst loading, temperature, and methanol to feed molar ratio using ionic liquid acidic catalysts covalently attached to a polystyrene support. The kinetic ...

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Cuprous oxide nanoparticles in epoxy network: Cure reaction, morphology, and thermal stability

30.06.2015 | Anu Tresa Sunny, Poornima Vijayan P., Thresiamma George, Kim Pickering, Suresh Mathew, Sabu Thomas, Polymer Engineering and Science, 2015

Nanosized cuprous oxide filler particles (nCOP) with octahedral morphology were synthesized through hydrazine reduction method and were used to develop a novel nanocomposites based on epoxy resin. The morphology of epoxy–nCOP nanocomposites were analyzed using transmission electron microscopy ...

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Morphological analysis of microcellular PP produced in a core‐back injection process using chemical blowing agents and gas counter pressure

30.06.2015 | José Antonio Reglero Ruiz, Michel Vincent, Jean‐François Agassant, Aurore Claverie, Sébastien Huck, Polymer Engineering and Science, 2015

A complete experimental analysis of the microcellular injection process using Chemical Blowing Agents (CBA) with Gas Counter Pressure (GCP) and core‐back expansion is presented. Three different types of polypropylene, neat and charged, were mixed with two different CBAs and injected into a plate ...

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A new empirical equation for minimum spouting/spout‐fluidization velocity in draft tube spout‐fluid beds at elevated temperature

30.06.2015 | Man Wu, Qingjie Guo, Henglai Xie, Luyan Liu, The Canadian Journal of Chemical Engineering, 2015

Abstract Draft tube spout‐fluid beds have been widely used in drying, coating, and granulation processes. In these processes, the spout‐fluid reactor is always operated at gas temperatures that exceed ambient conditions. Therefore, one objective of draft tube spout‐fluid bed research is to ...

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A method for barrier‐based incident investigation

27.06.2015 | Robin Pitblado, Tony Potts, Mark Fisher, Stuart Greenfield, Process Safety Progress, 2015

Incident investigation is a formal requirement for high hazard facilities with the aim to learn from each incident and to prevent future recurrences. There are many published investigation methods, with most driving to the management system root cause and some applying newer barrier‐based ...

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Continuously Conducted Selective Hydrogenation of Benzene to Cyclohexene in a Four‐Phase System

26.06.2015 | Hendrik Spod, Martin Lucas, Peter Claus, Chemical Engineering & Technology, 2015

Abstract Currently, the production of nylon 6 and nylon 6.6 is based on the complete hydrogenation of benzene to cyclohexane over nickel or platinum catalysts and its subsequent oxidation at very low conversions to a mixture of cyclohexanol/cyclohexanone. This mixture is further reacted to ...

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