two or more high temperature crystallization stages, including the separation of the paint chamber's method (PARAXYLENE SEPARATION PROCESS COMPRISING at LEAST TWO HIGH TEMPERATURE CRYS TALLIZATION STAGES)

摘要

according to the invention, the first partition of iraq's content will improve the appropriate concentration is in the field, and the c9 aromatic hydrocarbon mixture of C7 containing material, at least part of the step cycle; and;in the first partition of at least part of a region in which one or more crystallization region in a layer above the temperature of crystallization process in the region, through the process in the refining stage to include the raw materials, the color - and the school. xylene production methods in a way that, in iraq, for the good of the first partition, the content of the one or more high temperature, welcomed to be 10 degrees - 25 degrees of crystallization phase (50, 70) in the field of uacb0uc815ud654 containing tablets one of the characteristics of it. the rack for the concentration field for the low temperature crystallization, the adsorption of toluene disproportionation or field work.