Process for production of ethylene polymers using in-line analyzers to predict and control density of ethylene polymers in real time

The present invention relates to a process for producing ethylene polymers using an online analyzer to predict and control the density of ethylene polymers in real time. In particular, the present invention relates to a method for producing a polymer having desired properties by measuring properties such as the density of the polymer and the content of unreacted substances online in real time in a polymerization reactor system and thereby controlling the content of raw materials injected into the polymerization. 本发明涉及使用在线分析仪实时预测和控制乙烯聚合物的密度的生产乙烯聚合物的方法。具体地，本发明涉及通过在聚合反应器系统中在线实时测量特性例如聚合物的密度和未反应物质的含量并由此控制注入到聚合中的原材料的含量来生产具有期望特性的聚合物的方法。