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Direct Catalytic Conversion of Cellulose into Ethylene Glycol Using Nickel-Promoted Tungsten Carbide Catalysts (p NA) Na Ji, Tao Zhang, Mingyuan Zheng, Aiqin Wang, Hui Wang, Xiaodong Wang, Jingguang G. Chen Published Online: Sep 11 2008 4:23AM DOI: 10.1002/anie.200803233 Nickel saves dimes: The expense of using precious-metal catalysts is avoided in the high-yielding conversion of cellulose to ethylene glycol (see picture; AC=activated carbon). This process occurs in up to 29 % yield over a tungsten carbide catalyst, and in up to 61 % yield when the catalyst is promoted with a small amount of nickel. An attractive feature of this reaction is the low yields of other polyols with respect to ethylene glycol. È«ÎÄÏÂÔØhttp://www.namipan.com/d/Direct% ... 6d04794af2b2c680600 |
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