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发明公开
CN109790236A 制备催化剂的方法 审中-实审

制备催化剂的方法
摘要：
一种制备催化剂的方法，包括：a)使(i)二氧化硅载体，(ii)氧钛化合物，(iii)含铬化合物和(iv)任选的溶剂接触，以形成第一含水混合物，其包含预催化剂和含有约1重量％至约99重量％水的反应介质；b)通过加热至约400℃至约1000℃的温度持续约1分钟至约24小时的时间，热处理所述预催化剂，以形成催化剂。一种制备催化剂的方法，包括使包含二氧化硅的水合载体材料与含铬化合物接触以形成包含铬化载体的第一含水混合物；使包含铬化载体的第一含水混合物与包含(i)溶剂和(ii)氧钛化合物的溶液接触，形成包含预催化剂的第二含水混合物；并热处理预催化剂以形成催化剂。
摘要（英）：

A method of preparing a catalyst comprising a) contacting (i) a silica-support, (ii) an oxotitanium compound, (iii) a chromium-containing compound, and (iv) an optional solvent to form a first aqueousmixture comprising a pre-catalyst and a reaction media having from about 1 wt.% to about 99 wt.% water; b) thermally treating the pre-catalyst by heating to a temperature of from about 400 C to about1000 C for a time period of from about 1 minute to about 24 hours to form the catalyst. A method of preparing a catalyst comprising contacting a hydrated support material comprising silica with a chromium-containing compound to form a first aqueous mixture comprising a chrominated support; contacting the first aqueous mixture comprising a chrominated support with a solution comprising (i) a solvent and (ii) an oxotitanium compound to form a second aqueous mixture comprising a pre-catalyst; and thermally treating the pre-catalyst to form the catalyst.

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