公开(公告)号：EP0117048A3

公开(公告)日：1986-04-16

申请号：EP84300222

申请日：1984-01-13

申请人： CELANESE CORPORATION

发明人： Barer, Sol J. ,  Maxwell, Peter C. ,  Hsieh, Jih-Han

IPC分类号： C12P07/44 ,  C07C87/14 ,  C07C55/14 ,  C07C57/16

CPC分类号： C08G69/28 ,  C07C57/16 ,  C12P7/44 ,  Y10S435/877

摘要： This invention provides a process for producing nylon 6,6 salt which involves bioconversion of toluene to muconic acid in the presence of hexamethylenediamine to yield hexamethylenediamine muconate salt. Hydrogenation of this salt provides an aqueous solution of the desired hexamethylenediamine adipate salt.

公开(公告)号：EP0098750A3

公开(公告)日：1986-04-16

申请号：EP83303840

申请日：1983-07-01

申请人： CELANESE CORPORATION

发明人： Maxwell, Peter C. ,  Hsieh, Jih-Han ,  Fieschko, John C.

IPC分类号： C12P01/00 ,  C12N15/00 ,  C12P07/44

CPC分类号： C12P7/44 ,  C12N15/01 ,  C12P1/00 ,  Y10S435/877

摘要： This invention provides a process for stabilising a population of a mutant micro-organism in a bioconversion system whereby growth of revertant cells is suppressed. The process involves limiting a nutrient which is essential for cell growth so that the cells selectively grow on a growth carbon source rather than on a non-growth carbon source which is present. The revertant cells being suppressed have a similar ability as the parent strain of the mutant micro-organism to grow on the non-growth carbon source in the bioconversion system. The non-growth carbon source in the bioconversion system is metabolised to an extracellular accumulating quantity of a desired metabolite, e.g., toluene is converted to muconic acid.