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METHOD FOR DECREASING HYDROXYACETONE IN CRUDE PHENOL, METHOD FOR PRODUCING CRUDE PHENOL CONTAINING LITTLE HYDROXYACETONE, AND METHOD FOR PRODUCING HIGH-PURITY PHENOL
METHOD FOR DECREASING HYDROXYACETONE IN CRUDE PHENOL, METHOD FOR PRODUCING CRUDE PHENOL CONTAINING LITTLE HYDROXYACETONE, AND METHOD FOR PRODUCING HIGH-PURITY PHENOL
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机译:降低粗苯酚中的羟基丙酮的方法,制备含小羟基苯丙酮的粗苯酚的方法和高纯度苯酚的制备方法
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摘要
PROBLEM TO BE SOLVED: To provide a method for decreasing hydroxyacetone from crude phenol containing hydroxyacetone, without eliminating phenol or generating a large amount of acetoin.SOLUTION: The method for decreasing hydroxyacetone in crude phenol comprises a conversion step of converting the hydroxyacetone into a high-boiling-point compound by contacting the crude phenol containing hydroxyacetone with a solid base catalyst (A) containing at least one of a weakly basic solid base catalyst (i) containing a metal oxide and a solid base catalyst (ii) containing basic zeolite having a linear pore structure.SELECTED DRAWING: None
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