Shanghai Chlor Alkali Chemical Co.

Shanghai, China

Shanghai Chlor Alkali Chemical Co.

Shanghai, China
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Feng K.,East China University of Science and Technology | Li C.,East China University of Science and Technology | Guo Y.,East China University of Science and Technology | Zhan W.,East China University of Science and Technology | And 4 more authors.
Cuihua Xuebao/Chinese Journal of Catalysis | Year: 2014

Cu-K-La/γ-Al2O3 catalysts prepared by the incipient wetness impregnation for the catalytic oxidation of HCl to Cl2 at atmospheric pressure were investigated for the effect of KCl on the catalyst performance. Cu-K-La/γ-Al2O3 catalyst with 5 wt% KCl loading showed good activity and stability due to the promotion by KCl. It gave good activity over a wide range of space velocity of the feed gas and conversion of HCl above 85%, and it was nearly unchanged in activity after 100 h reaction at the conditions of 0.1 MPa, 360℃, space velocity of 450 L/(kg-cat·h), and HCl/O2 molar ratio = 2:1. X-ray diffraction results indicated that Cu, K, and La species were highly dispersed on the surface of the γ-Al2O3 support. H2 temperature-programmed reduction results indicated that the addition of KCl favored the reduction of Cu2+ to Cu+ and improved the activity of the active sites of Cu2+ species for HCl oxidation. © 2014, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.


Yue Q.,Shanghai Chlor Alkali Chemical Co. | Zhu J.-W.,East China University of Science and Technology | Yuan X.-Q.,East China University of Science and Technology
Huadong Ligong Daxue Xuebao/Journal of East China University of Science and Technology | Year: 2010

The synthesis reaction of dichloropropanol from glycerol and hydrochloride catalyzed by cheap organic acid under mild conditions was studied. Based on large amount of experimental data, the kinetic equations with different catalysts were established. The effects of temperature and catalyst content on the glycerol hydrochiorination were investigated. The optimum operation temperature curve was obtained by the analysis of the effects of reactant concentration and temperature.


Feng K.,East China University of Science and Technology | Li C.,East China University of Science and Technology | Guo Y.,East China University of Science and Technology | Zhan W.,East China University of Science and Technology | And 4 more authors.
Applied Catalysis B: Environmental | Year: 2015

An efficient Cu-K-La/γ-Al2O3 catalyst, prepared by the incipient wetness impregnation method, was developed for the catalytic oxidation of HCl to chlorine, in which effects of catalyst composition, calcination temperature, reaction temperature and GHSV of the feed gas and the catalyst stability were investigated. Cu-K-La/γ-Al2O3 catalyst shows good catalytic performance and stability with the conversion of HCl of about 78% for reaction for over 9600h under the reaction conditions of 30g catalyst, 0.1MPa, 340°C, GHSV of 450L/(kgcath), HCl/O2=2:1. Thermogravimetry results indicate that the synergistic promoters of KCl and LaCl3 can significantly reduce the reaction temperature for oxidation of CuCl2 to produce chlorine, which is a key step in the catalytic oxidation of HCl. XRD results show that there were only broad characteristic diffraction peaks of γ-Al2O3 support and copper species, potassium species and lanthanum species were highly dispersed on the surface of γ-Al2O3 support over Cu-K-La/γ-Al2O3 catalyst. © 2014 Elsevier B.V.


Miao H.,East China University of Science and Technology | Miao H.,Shanghai Chlor Alkali Chemical Co. | Lin S.,East China University of Science and Technology | Lin J.,East China University of Science and Technology
Journal of Applied Polymer Science | Year: 2012

Poly(vinyl chloride-co-vinyl acetate-co-maleic anhydride) (PVVM)/silica nanocomposites were prepared by the suspension radical copolymerization of the monomers in the presence of fumed silica premodified with γ- methylacryloxypropl trimethoxy siliane. Morphological observation showed that the silica particles of nanometer scale were well dispersed in the copolymer matrix of the nanocomposites films, whereas silica particles tended to agglomerate in the composites films prepared by the solution blending of PVVM with silica. The experimental results show that the thermal stability, glass-transition temperature, tensile strength, and Young's modulus were significantly enhanced by the incorporation of silica nanoparticles. The enhancement of properties was related to the better dispersion of silica particles in polymer matrix and the interaction between the polymer chains and the surfaces of the silica particles. © 2011 Wiley Periodicals, Inc.


Miao H.,East China University of Science and Technology | Miao H.,Shanghai Chlor Alkali Chemical Co. | Lin S.,East China University of Science and Technology | Lin J.,East China University of Science and Technology
Journal of Vinyl and Additive Technology | Year: 2014

Poly(vinyl chloride-co-vinyl acetate) (PVVA)/nano-SiO2 composite resin was prepared by radical suspension polymerization of the monomers in the presence of fumed nano-SiO2 particles premodified with γ-methylacryloxypropyl trimethoxysilane. The cool dioc-tyl phthalate absorption percentage, granule porosity, and specific surface area of the composite resin were enhanced through incorporation of nano-SiO2 into the PVVA. Scanning electron microscope pictures showed the resin had higher porosity. PVVA/nano-SiO2 composite resin was mixed with pure PVC resin to form a mixture sample (polymer-composite blend [PCB]) and the mixture was fused in the torque rheometer. The rheological test results indicated that, at a certain nano-SiO2 content, the fusion speed of PCB was accelerated and the fusion temperature of PCB was decreased, owing to nano-SiO2 dispersed evenly in the polymer matrix. When excessive nano-SiO2 was loaded, the fusion torque, the fusion time, and the fusion temperature of PCB were all increased. These properties are correlative to the dispersive density of nano-SiO2 in the polymer matrix. This study also demonstrated that the introduction of small amounts of nano-SiO2 into the resin increased the impact strength and tensile strength of PCB simultaneously. © 2014 Society of Plastics Engineers.

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