Supercharge Your Innovation With Domain-Expert AI Agents!

A method of purifying organic solution obtained from cyclohexanone oxime synthesis area

A technology of oxime synthesis zone and organic matter, applied in the direction of organic chemistry, oxime preparation, etc., can solve the problem of no public cleaning method and the like

Active Publication Date: 2017-08-11
CAP III
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the application does not disclose specific cleaning method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method of purifying organic solution obtained from cyclohexanone oxime synthesis area
  • A method of purifying organic solution obtained from cyclohexanone oxime synthesis area
  • A method of purifying organic solution obtained from cyclohexanone oxime synthesis area

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Preferably, in oxime synthesis zone [A], an aqueous reaction medium containing hydroxylammonium, phosphate and nitrate is contacted with ketone dissolved in a solvent.

[0027] Preferably, before adding the organic solution to the cleaning zone [C], the organic solution is introduced into the cleaning zone [B], which comprises:

[0028] (1) In the liquid-liquid mixing zone [B2], the organic matter solution is mixed with water and / or aqueous solution, and the resulting mixture is input into the liquid-liquid separator [B3]. Optionally, after being added to the liquid-liquid Before the liquid mixing zone [B2], part of the aqueous medium contained in the organic solution is separated in the liquid-liquid separator [B1];

[0029] (2) Separate the resulting aqueous layer and the resulting organic layer in the liquid-liquid separator [B3] and discharge the organic layer from the cleaning zone [B], optionally, before the organic layer flows out, from the liquid-liquid Part of...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A method for continuously purifying an organic matter solution containing oxime and ketone in a solvent comprises the following steps: (1) inputting an organic matter solution generated in an oxime synthesis zone [A] to a cleaning zone [C]; (2) mixing the organic matter solution and water and / or an aqueous solution in a liquid-liquid mixing zone [C1] and inputting the generated mixture into a liquid-liquid separator [C2]; (3) separating a generated organic layer and a generated water layer in the liquid-liquid separator [C2] and introducing the organic layer into an oxime recovery zone [D]; (4) adding the water layer in the liquid-liquid separator [C2] into a water purification zone [W], and optionally returning part of the water layer in the liquid-liquid separator [C2] to the liquid-liquid mixing zone [C1]; and (5) recovering oxime and the solvent from the water layer by the combination of a solvent extraction method and a stripping method by the use of a gas and / or steam in the water purification zone [W], and discharging a water phase obtained from the water purification zone [W], and optionally returning the recovered oxime and solvent to the oxime synthesis zone [A].

Description

technical field [0001] The invention relates to a method for purifying cyclohexanone oxime dissolved in a solvent. Background technique [0002] Oximes, especially cyclohexanone oxime, can be prepared in a process containing buffered acids or acidic salts such as phosphate buffered saline and buffered aqueous reaction media of buffered salts derived from these acids in the hydroxylammonium synthesis zone and cyclohexanone The ketoxime synthesis interval is continuously cycled. In the hydroxylammonium synthesis zone, hydrogen is used to catalytically reduce nitrate ions or nitrous oxide to form hydroxylammonium. In the cyclohexanone oxime synthesis area, the hydroxylammonium formed in the hydroxylammonium synthesis area can react with cyclohexanone to form cyclohexanone oxime. Cyclohexanone oxime is then separated from the aqueous reaction medium recycled to the hydroxylammonium zone. [0003] In the case of synthesis of hydroxylammonium salt with phosphoric acid and nitra...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C07C251/44C07C249/14C07C249/08
Inventor 约翰·托马斯·廷格丹尼尔·朱丽斯·玛利亚·奥兹哲姆
Owner CAP III
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com