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1.197 Aktuelle Fachpublikationen zum Thema temperature

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Optimization of melt blending process of nylon 6‐POSS: Improving mechanical properties of spun fibers

14.05.2015 | Ricardo J. Andrade, Zachary N. Weinrich, Creusa I. Ferreira, David A. Schiraldi, João M. Maia, Polymer Engineering and Science, 2015

Blends of nylon 6 and a silsesquioxane additive, aminopropyl isobutyl POSS containing 2.5% POSS by weight, were melt‐compounded with different process conditions in order to test a previously proposed mechanism for reinforcement of PA6 by POSS. In this work, we proposed that above the POSS ...


Saccharose Inversion and Metastable Zone

06.05.2015 | Stefanie Selbmann, Julia Herfurth, Sandra Petersen, Joachim Ulrich, Chemical Engineering & Technology, 2015

Abstract In the production of beverages, cookies, and candies, citric acid is often used as preservative or flavoring agent. Due to the sensitivity in stability of saccharose concerning pH and temperature, it is necessary to know how these two parameters affect the inversion of sugar and ...


An integrated method for preparing low quinoline insoluble modified pitch

03.05.2015 | Peng Liu, Dexiang Zhang, Xu Yang, Bowu Cheng, The Canadian Journal of Chemical Engineering, 2015

Pitches with three different softening points (SPs) were obtained from the same original coal tar purified in the laboratory by centrifuge, hot filtration, and distillation. The effect of temperature and residence time on thermal polymerization of the three types of pitch was investigated using ...


Prediction of Sanchez‐Lacombe equation of state characteristic parameters for plus fractions

03.05.2015 | Ali Sadat‐Shojaei, Mohammad Reza Khorsand Movaghar, Seyyed Ali Mousavi Dehghani, The Canadian Journal of Chemical Engineering, 2015

Abstract Sanchez‐Lacombe is one of the main polymeric equations of state that is used to predict thermodynamic properties of polymer solutions. Due to the similarity of the physical behavior of polymer solutions and black oil, Sanchez‐Lacombe is also recommended to predict the liquid density ...


Catalytic effect of MgCl2 on cotton stalk pyrolysis for chemical production at low temperature

02.05.2015 | Xinliang Liu, Yan Dong, Hailiang Yin, Guicai Zhang, The Canadian Journal of Chemical Engineering, 2015

Abstract Cotton stalk pyrolysis catalyzed by magnesium chloride was carried out in a fixed bed reactor in a temperature range of 493–553 K. The feedstock characteristics, product distribution, pyrolysis oil composition, and solid residue composition were analyzed. The presence of MgCl2 ...


Growth and Dissolution Kinetics of A and B Polymorphs of L‐Histidine

29.04.2015 | Lek Wantha, Adrian E. Flood, Chemical Engineering & Technology, 2015

Abstract The growth rate of the stable polymorph A and the dissolution rate of the unstable polymorph B of L‐histidine (L‐his) in aqueous solution were experimentally determined at varying temperatures. The growth and dissolution kinetics were measured by means of desupersaturation and ...


CFD‐based simulation study on producer gas explosion in an electrostatic precipitation

27.04.2015 | Kai Yang, Qiang Li, Zhijiang Ding, Lichun Xiao, Process Safety Progress, 2015

Gas explosion is one of the most serious problems in the operation of electrostatic precipitation (ESP) which is applied to purify producer gas. Simulation study on the producer gas explosion in ESP has been conducted with computational fluid dynamic method. Producer gas explosion was studied ...


Growth Rate Dispersion at the Single‐Crystal Level

27.04.2015 | Emilie Bobo, Samuel Petit, Gérard Coquerel, Chemical Engineering & Technology, 2015

Abstract Evidence of growth rate dispersion for symmetry‐related opposite faces of centrosymmetric single crystals of ammonium perchlorate is provided. Crystallization experiments conducted by evaporation of a stagnant aqueous solution at room temperature show that some faces have high and ...


Comparison of performances of different type of clarifiers for the treatment of oily wastewater produced from polymer flooding

21.04.2015 | Jian Zhang, Bo Jing, Guorong Tan, Lei Zhai, Shenwen Fang, Yongzhang Ma, The Canadian Journal of Chemical Engineering, 2015

Abstract In this paper, oily wastewater produced from polymer flooding (OWPF) was treated with two different types of clarifiers. One was a cationic polymer (copolymer of acrylamide and acryloyloxyethyl trimethyl ammonium chloride) PAM‐DAC, the other was the non‐ionic polymer ...


Rheological behavior of uncured styrene‐butadiene rubber at low temperatures, pure and filled with carbon black

18.04.2015 | Alice Crié, Claire Baritaud, Rudy Valette, Bruno Vergnes, Polymer Engineering and Science, 2015

The flow behavior of an uncured styrene‐butadiene rubber (SBR) has been studied by using a specific preshearing capillary rheometer in the range of temperatures encountered in extrusion, i.e. between 40°C and 90°C. A pure SBR and various SBR compounds filled with different amounts of carbon ...


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