Abstract:
A method for preparing a composite catalyst for a light olefin obtained from an oxygenated compound is provided to control a selectivity ratio of propylene/ethylene so as to control a composition ratio of a reaction product. A method for preparing a composite catalyst for a light olefin obtained from an oxygenated compound comprises the following steps. A ZSM-5 basic solution is prepared by mixing ZSM-5 and alkaline solution. An alumina basic solution for SAPO-34 is prepared by mixing an alumina precursor and a tetraethyl ammonium hydroxide. An aluminium phosphate solution for SAPO-34 is prepared by mixing the alumina basic solution, phosphoric acid, and water.
Abstract:
A high purity refining method of acetone is provided to refine acetone containing organic impurity and inorganic metallic impurity through an ion exchange resin tower and a batch type distillation tower containing zeolite 4A. A high purity refining method of acetone comprises (1) a step for obtaining refined acetone by injecting the collected acetone containing organic impurity, inorganic metallic impurity and moisture to the top of a tower having ion-exchange resin at a flow rate of 10~100 cc /minute . g (the flow rate of the collected acetone per the ion-exchange resin gram); and (2) a step for obtaining acetone by injecting the first refined acetone in a batch type distillation tower continuously and distilling it at a distillation temperature of 60~80 °C with the reflux ratio of 2~6. The batch type distillation tower contains 1~5 % of zeolite 4A based on the weight of the collected acetone.
Abstract translation:提供丙酮的高纯度精制方法,通过离子交换树脂塔和含沸石4A的间歇式蒸馏塔来提炼含丙酮的有机杂质和无机金属杂质。 丙酮的高纯度精炼方法包括:(1)通过将收集到的含丙酮的有机杂质,无机金属杂质和水分注入到具有离子交换树脂的塔顶部以10〜100的流速获得精制丙酮的步骤 cc /分钟。 g(离子交换树脂克收集的丙酮的流量); 和(2)通过在间歇式蒸馏塔中连续注入第一精制丙酮并在60〜80℃的蒸馏温度下以2〜6的回流比蒸馏得到丙酮的步骤。 基于收集的丙酮的重量,间歇式蒸馏塔含有1〜5%的沸石4A。
Abstract:
Disclosed is a high-pressure reaction apparatus. The disclosed high-pressure reaction apparatus comprises a first reactant compositional factor accommodation part for accommodating a first reactant compositional factor formed of one among solid, gaseous and liquid phases; a first reactant compositional factor transfer pump for transferring the first reactant compositional factor of the first reactant compositional factor accommodation part by pumping the first reactant compositional factor with high pressure; a second reactant compositional factor accommodation part for accommodating a second reactant compositional factor in a liquid phase; a second reactant compositional factor transfer pump for transferring the second reactant compositional factor of the second reactant compositional factor accommodation part by pumping the second reactant compositional factor with high pressure; and a high-pressure reactor for introducing, with pressure, the first reactant compositional factor and the second reactant compositional factor being transferred by the first and second reactant compositional factor transfer pumps together and compressing the introduced first and second reactant compositional factors with high pressure while mixing the introduced first and second reactant compositional factors.