Dewater technology of isooctyl nitrate

Abstract

The present invention relates to a dehydration process of isooctyl nitrate, belonging to the field of carbon and nitrogen bearing compound technology whose carbon frame is further connected by single bond and is substituted by oxygen atom. It includes dehydration procedure, utilizes sedimentation separation to remove most of water content, and further utilizes anhydrous sodium sulfate to remove micro water content. Said invention can stably control water content in the product and make it be below 0.01%.

Description

technical field

[0001] The invention belongs to the technical field of carbon- and nitrogen-containing compounds whose carbon frames are further replaced by oxygen atoms connected by single bonds, and specifically relates to a dehydration process of isooctyl nitrate. Background technique

[0002] Isooctyl nitrate is a good diesel cetane number improver, especially when mixed with 2-methyl-2-nitropropyl nitrate, it can greatly increase the cetane number of diesel oil.

[0003] In the prior art, the method for preparing isooctyl nitrate generally adopts the mixed acid method, that is, under normal temperature or low temperature conditions, isooctyl alcohol is added to the mixed acid composed of nitric acid and sulfuric acid, and the crude product of isooctyl nitrate is extracted or separated. Washed, washed to neutral, dried and distilled under reduced pressure.

[0004] The date of application is August 24, 1987, and the Chinese patent application number of 87105712 disclose...