Study on the formation and role of copper chloride hydroxide in the oxidative carbonylation of methanol to dimethyl carbonate |
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| Authors: | Jun Ren Zhong Li Shusen Liu Xinglu Lu Kechang Xie |
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| Affiliation: | 1. Key Laboratory of Coal Science and Technology (Taiyuan University of Technology), Ministry of Education and Shanxi Province, 030024, Taiyuan, China
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| Abstract: | The synthesis of dimethyl carbonate by oxidative carbonylation of methanol over CuCl/SiO2-TiO2 catalysts has been investigated in a slurry reaction system. The γ-Cu2(OH)3Cl crystals were detected by X-ray diffraction on the catalysts after reaction. It was revealed that γ-Cu2(OH)3Cl was formed by CuCl reacting with O2 and by-product water. The catalytic tests showed that γ-Cu2(OH)3Cl was largely inactive for this reaction, may be attributed to its high stability that resisted the Cu+/Cu2+ redox cycle. |
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