公开(公告)号：US4067779A

公开(公告)日：1978-01-10

申请号：US572857

申请日：1975-04-29

Applicant: Ferdinand List ,  Otto Rauhut ,  Peter Hegenberg ,  Rudolf Strobele

Inventor： Ferdinand List ,  Otto Rauhut ,  Peter Hegenberg ,  Rudolf Strobele

IPC: C07C55/20 ,  C07C51/00 ,  C07C51/487 ,  C07C55/02 ,  C07C55/21 ,  C07C67/00 ,  C08L63/02 ,  B01D3/10

CPC classification number: C07C51/487 ,  C08L63/00

Abstract: Crude 1,10-decanedicarboxylic acid produced by the nitric acid oxidation at 20.degree.14 60.degree. C. of cyclododecanone, cyclododecanol or a mixture thereof can be purified by distillation to a purity suitable for use in the production of polyamides and polyesters by reducing prior to distillation, e.g., by heating to 70.degree.-90.degree. C., the organically bound nitrogen content and as required the nitric acid content, e.g., by washing, and water content thereof so that the sample which is distilled has maximum contents thereof of 0.05%, 0.02% and 0.1% by weight, respectively, and distilling the pre-purified sample at a sump temperature of 215.degree.-225.degree. C. and at a pressure of 0.5 - 2 torr.

Abstract translation: 可以通过蒸馏纯化20d14℃的环十二酮，环十二烷醇或其混合物的硝酸氧化产生的粗制1,10-癸烷二羧酸，其纯度适用于通过还原先前的方法生产聚酰胺和聚酯 进行蒸馏，例如通过加热至70-90℃，有机结合的氮含量和硝酸含量，例如通过洗涤及其含水量，使得蒸馏的样品的最大含量为 分别为0.05％，0.02％和0.1％，并在215-225℃的贮槽温度和0.5-2托的压力下蒸馏预纯化的样品。