IP Library › Granted Patent US 10,703,697
Granted Patent B2
US 10,703,697 · App. 16/275,547 · Granted Jul 7, 2020

Method for refining organic compound

Inventors: Kousuke Niwa (Niwa-Gun, JP); Hiroaki Isobe (Nagoya, JP)
Assignee: NGK Insulators, Ltd.
C07C29/80B01D1/0029B01D1/30B01D9/005B01D15/3804B01D17/005B01J19/12B01J19/128C07B63/00C07C31/04B01D2221/10
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 10,703,697
App. No.
16/275,547
Granted
Jul 7, 2020
Kind
B2
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.

Claims (16)

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.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 14, 2019
From: NIWA, KOUSUKE; ISOBE, HIROAKI
To: NGK INSULATORS, LTD.
Reel/Frame 048331/0574 →
Priority Claims (1)
JP 2016-161435 · Aug 19, 2016 · national
Continuity (2)
Continuation PCTJP2017029450 · Aug 16, 2017
Related Publication 20190194101A1 · Jun 27, 2019