REACTOR AND METHOD FOR CONTINUOUS POLYMERIZATION

摘要

The present invention relates to a reactor (10) and a method for continuous polymerization, the reactor (10) having a substantially tubular reactor housing (16). The reactor housing (16) has a drive (38) which runs along the geometric central axis (12) in the flow direction (22) and is configured as a central shaft. A rotatably arranged scraper or wiper (36) is provided within the reactor housing (16), the scraper or wiper (36) having at least one scraper or wiper blade (42) to run along an inner side (44) of the reactor housing (16). The rotational movement of the scraper or wiper (36) results in radial mixing of a flow within the reactor housing (16), which flow dominates gravity effects and, as a result of shaping of the scrapers or wipers, optionally makes possible plug flow, a loop flow or backflow within the reactor (10) or also via an additional external pumped circulation system (23). This allows the reaction conditions in the axial direction of the reactor housing (16) to be predicted and suitable reaction conditions to be set and controlled individually along the reactor housing, such that a desired molecular weight distribution can be set in particular.