Title:
NITRIC ACID REDUCTION CONVERSION PROCESS
Document Type and Number:
WIPO Patent Application WO/2020/103556
Kind Code:
A1
Abstract:
The present invention relates to a nitric acid reduction conversion process, the process involving bringing a raw material gas that is rich in nitric oxide into contact with a raw material liquid containing nitric acid and methanol in a nitric acid reduction reactor, such that an oxidation-reduction reaction occurs in order to convert the nitric acid into methyl nitrite. Compared with the prior art, the present invention improves the nitric acid conversion rate, reduces the pressure drop and also increases the selectivity of the target product methyl nitrite by optimizing the number of reactors in series, the reaction temperature, the feed ratio of the nitric oxide in the raw material gas to the nitric acid in the raw material liquid, and the amount of supplemented methanol.
Inventors:
LIANG BICHAO (CN)
Application Number:
PCT/CN2019/106834
Publication Date:
May 28, 2020
Filing Date:
September 20, 2019
Export Citation:
Assignee:
PUJING CHEMICAL IND CO LTD (CN)
International Classes:
C07C201/04; C07C203/00
Foreign References:
| CN106565496A | 2017-04-19 | |||
| CN106748785A | 2017-05-31 | |||
| CN106565494A | 2017-04-19 | |||
| CN106565495A | 2017-04-19 | |||
| CN106565498A | 2017-04-19 | |||
| EP0911316A2 | 1999-04-28 | |||
| CN105218374A | 2016-01-06 | |||
| CN103373925A | 2013-10-30 | |||
| CN104945263A | 2015-09-30 |
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
Download PDF:
Previous Patent: OPTICAL IMAGING LENS AND IMAGING DEVICE
Next Patent: TRANSACTION PROCESSING METHOD AND DEVICE
Next Patent: TRANSACTION PROCESSING METHOD AND DEVICE