(TW201613983) 本發明係關於，降低聚合化設備中進行之連續聚合製程中從第一聚合物級至第二聚合物級之改變過程中過渡時間及/或超出規範之聚合物廢物的方法，其中- 該聚合化設備係包含至少一個逆混合反應器，- 於聚合製程之前及/或過程中，將至少一種單體及至少一種選自催化劑、助催化劑、聚合起始劑、共單體、鏈轉移劑、分支劑、溶劑、及兩種或更多種前述劑之任意組合所組成群組之處理劑加入該至少一個逆混合反應器中，其中，引入該至少一個逆混合反應器中之饋料內該至少一種所加處理劑之一者或多者的濃度，此濃度係作為時間之函數從與第一聚合物級相關之第一值變化為與第二聚合物級相關之最終值，- 該第一聚合物級與該第二聚合物級係一個或多個與待製造之聚合物分子量相關的參數，及/或一個或多個與待製造之聚合物組成相關的參數，及/或一個或多個與待製造之聚合物結構相關的參數，及/或一個或多個與待製造之聚合物量相關的參數，其中，於該至少一種所加處理劑之濃度從第一值至最終值變化的過程中，一個或多個中間值係被調節，其中，該一個或多個中間值的至少一個，較佳大部分且更佳全部係更接近最終值而非第一值，其中，該一個或多個中間值的至少一個，較佳大部分之每一個且更佳全部之每一個，與該第一值的絕對差係大於該最終值與第一值的絕對差，其中，該一個或多個中間值係維持一定時間，該時間係基於僅於該至少一個逆混合反應器中之滯留時間及輸入與輸出該反應器及/或聚合化設備之間的穩態相關性而計算，以及，該方法係不需動態建模而施行。 The present invention relates to a method for reducing the transition time and/or the polymer waste being out of the specification during the change from a first polymer grade to a second polymer grade in a continuous polymerization process conducted in a polymerization plant, wherein - the polymerization plant comprises at least one back-mixing reactor, - at least one monomer and at least one processing agent selected from the group consisting of catalysts, co-catalysts, polymerization initiators, co-monomers, chain-transfer agents, branching agents, solvents and arbitrary combinations of two or more of the aforementioned agents are added be-fore and/or during the polymerization process into the at least one back-mixing reactor, wherein the concentration of one or more of the at least one added processing agent in the feed introduced into the at least one back-mixing reactor is varied as a function of time from a first value associated with the first polymer grade to a final value associated with the second pol-ymer grade, - the first polymer grade and the second polymer grade are one or more parameters related to the molecular weight of the polymer to be produced and/or one or more parameters related to the composition of the polymer to be produced and/or one or more parameters related to the structure of the polymer to be produced and/or one or more parameters related to the amount of the polymer to be produced, wherein during the variation of the concentration of the at least one added pro-cessing agent from the first value to the final value one or more intermediate val-ues are adjusted, wherein at least one, preferably the majority and more preferably all of the one or more intermediate values are closer to the final value than to the first value, wherein the absolute difference between the at least one, preferably each of the majority and more preferably each of all of the one or more intermedi-ate values from the first value is greater than the absolute difference between the final and the first value, wherein the one or more intermediate values are main-tained for a time which is calculated on the basis of only residence time in the at least one back-mixing reactor and steady-state correlations between input and output of the reactor and/or of the polymerization plant, and wherein the method is performed without performing dynamic modelling.
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