Method for refining organic compound

Patent metadata

Field	Value
Publication number	US-10703697-B2
Application number	US-201916275547-A
Country	US
Kind code	B2
Filing date	Feb 14, 2019
Priority date	Aug 19, 2016
Publication date	Jul 7, 2020
Grant date	Jul 7, 2020

Abstract

An organic compound refinement method for refining a specific organic compound which is a target compound from at least two types of organic compounds. The method includes separating the target compound from an organic compound other than the target compound while the at least two types of organic compounds are irradiated with light at an infrared absorption wavelength of a specific functional group that is not contained in the target compound but is contained in the organic compound other than the target compound, or separating the target compound from an organic compound other than the target compound while the at least two types of organic compounds are irradiated with light at an infrared absorption wavelength of a specific functional group that is contained in the target compound but is not contained in the organic compound other than the target compound.

First claim

What is claimed is:

1. An organic compound refinement method for refining a specific organic compound which is a target compound from at least two types of organic compounds, the method comprising
separating the target compound from an organic compound other than the target compound while the at least two types of organic compounds are irradiated with light at an infrared absorption wavelength of a specific functional group that is not contained in the target compound but is contained in the organic compound other than the target compound, or
separating the target compound from an organic compound other than the target compound while the at least two types of organic compounds are irradiated with light at an infrared absorption wavelength of a specific functional group that is contained in the target compound but is not contained in the organic compound other than the target compound,
wherein the light at the infrared absorption wavelength of the specific functional group is set within a wavelength range of from 2.5 μm to 25 μm inclusive, and a half-width of a maximum peak of the irradiated infrared light is 1.5 μm or less.

2. The organic compound refinement method according to claim 1 ,
wherein, during the irradiation with the light at the infrared absorption wavelength of the specific functional group, an infrared heater that emits, from a structural member thereof, the light at the infrared absorption wavelength of the specific functional group is used, the structural member including a metal pattern, a dielectric layer, and a metal substrate that are stacked in this order from an outer side toward an inner side.

3. The organic compound refinement method according to claim 2 ,
wherein the metal pattern includes metal electrodes having the same shape and the same size and arranged on the dielectric layer at regular intervals, and
wherein the peak wavelength of infrared radiation emitted from the infrared heater varies with a width of the metal electrodes.

4. An organic compound refinement method for refining a specific organic compound which is a target compound from at least two types of organic compounds, the method comprising
separating the target compound from an organic compound other than the target compound while the at least two types of organic compounds are irradiated with light at an infrared absorption wavelength of a specific functional group that is not contained in the target compound but is contained in the organic compound other than the target compound, or
separating the target compound from an organic compound other than the target compound while the at least two types of organic compounds are irradiated with light at an infrared absorption wavelength of a specific functional group that is contained in the target compound but is not contained in the organic compound other than the target compound,
wherein, during the irradiation with the light at the infrared absorption wavelength of the specific functional group, a planar heater is used as an infrared heater that emits the light at the infrared absorption wavelength of the specific functional group.

5. The organic compound refinement method according to claim 4 , wherein the light at the infrared absorption wavelength of the specific functional group is set within a wavelength range of from 2.5 μm to 25 μm inclusive.

6. The organic compound refinement method according to claim 4 , wherein a half-width of a maximum peak of the irradiated infrared light is 1.5 μm or less.

7. The organic compound refinement method according to claim 1 , wherein, during the irradiation with the light at the infrared absorption wavelength of the specific functional group, an infrared heater comprising a heating element and a plate-shaped member disposed below the heating element is used to emit the light at the infrared absorption wavelength of the specific functional group.

Assignees

• Ngk Insulators Ltd

Inventors

• Niwa Kousuke
• Isobe Hiroaki

Classifications

• B01D1/0029 Primary

  Use of radiation · CPC title

• B01J19/12

  employing electromagnetic waves · CPC title

• C07C31/04

  Methanol · CPC title

• B01D15/3804

  Affinity chromatography · CPC title

• B01D9/005

  Selection of auxiliary, e.g. for control of crystallisation nuclei, of crystal growth, of adherence to walls; Arrangements for introduction thereof · CPC title