METHOD FOR PRODUCING NITROUS ACID ESTER, AND METHOD FOR PRODUCING DIALKYL OXALATE AND DIALKYL CARBONATE

WIPO Patent Application WO/2013/150840

A1

A method for producing a nitrous acid ester whereby nitric oxide, oxygen, and an alcohol are reacted to produce a nitrous acid ester, the method for producing a nitrous acid ester including: a step for supplying the bottoms liquid from the bottom of the reaction column, and nitric oxide and/or carbon monoxide to a reactor to generate a nitrous acid ester; a step for supplying the nitrous acid ester to a reaction column; a step for supplying a reaction liquid containing water, nitric acid, and alcohol from the reactor to a nitric acid concentration column; and a step for separating the low-boiling fraction from the reaction liquid by distillation while controlling the alcohol concentration in the concentrated liquid produced in the bottom of the nitric acid concentration column to less than 4.0 wt%, and introducing the concentrated liquid into the reactor.

JP4134761	Manufacturing method of alkyl nitrite
JP3807124	PRODUCTION OF NITROUS ESTER
JP2009057370	PROCESS FOR PRODUCING ESTER OF NITROUS ACID

TANAKA SYUJI (JP)
II HIROFUMI (JP)
HINO AKIRA (JP)
FUKUI YUYA (JP)
UEDA SATOSHI (JP)

PCT/JP2013/055148

October 10, 2013

February 27, 2013

Click for automatic bibliography generation  

UBE INDUSTRIES (JP)

C07C201/04; C07C203/00; C07B61/00; C07C67/18; C07C67/36; C07C69/36; C07C69/96

JP2004323470A	2004-11-18
JP2004107336A	2004-04-08
JP2003327562A	2003-11-19

HASEGAWA Yoshiki et al. (JP)
Yoshiki Hasegawa (JP)

View/Download PDF      PDF Help

Previous Patent: SOLID-STATE IMAGE PICKUP DEVICE, METHOD FOR MANUFACTURING SOLID-STATE IMAGE PICKUP DEVICE, AND ELECT...

Next Patent: CONVEYANCE SYSTEM