While preserving the advantages of the original Witten process for manufacturing DMT, an improved Witten process has been developed featuring the use of new reactors and advanced separation technology including mixed oxidation, mixed esterification, vacuum crystallization, special rectification and fractional crystallization.
保持原有Witen法流程技术优势的前提下，采用先进的反应器和分离技术，开发了以混合氧化、混合酯化、减压结晶、特殊精馏和分步结晶为主要特征的Improved－Witen法DMT生产新工艺。