IP Library › Granted Patent US 12,383,864
Granted Patent B2
US 12,383,864 · App. 18/252,517 · Granted Aug 12, 2025

Stable isotope concentrating device

Inventors: Hayato Sakurai (Tokyo, JP); Takashi Kambe (Tokyo, JP)
Assignee: TAIYO NIPPON SANSO CORPORATION
B01D59/04
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Quick Facts
Patent No.
US 12,383,864
App. No.
18/252,517
Granted
Aug 12, 2025
Kind
B2
Abstract

The object of the present invention is to provide a stable isotope concentrating device that has high energy efficiency and can reduce equipment costs, and provides a stable isotope concentrating device including a distillation column group in which multiple distillation columns are cascaded, and the distillation column group includes: a tray column group including one or more tray columns; and a packing column group including one or more packing columns, and the packing column group is located on a secondary side of the tray column group.

Claims (17)

1. A stable isotope concentrating device that concentrates stable isotopes by distillation,

wherein the stable isotope concentrating device comprises a distillation column group in which multiple distillation columns are cascaded,

wherein the distillation column group comprises:

a tray column group comprising one or more tray columns; and

a packing column group comprising one or more packing columns, and

wherein the packing column group is located on a secondary side of the tray column group.

2. The stable isotope concentrating device according to claim 1 ,

wherein all of the packing columns of the packing column group are random packing columns.

3. The stable isotope concentrating device according to claim 1 ,

wherein the packing column group comprises one or more structured packing columns and one or more random packing columns, and the one or more random packing columns are located on a secondary side of the one or more structured packing columns.

4. The stable isotope concentrating device according to claim 1 ,

wherein the packing column group comprises one or more structured packing columns and one or more random packing columns, and the one or more structured packing columns are located on a secondary side of the one or more random packing columns.

5. The stable isotope concentrating device according to claim 1 ,

wherein the distillation column to which the raw material is supplied in the distillation column group is a tray column.

6. The stable isotope concentrating device according to claim 2 ,

wherein the number of the random packing columns connected in parallel in the random packing column group is 20 or less.

7. The stable isotope concentrating device according to claim 2 , wherein the random packing column has a column diameter of 200 mm or less.

Assignments (2)
CHANGE OF NAME Recorded May 20, 2026
From: TAIYO NIPPON SANSO CORPORATION
To: NIPPON SANSO CORPORATION
Reel/Frame 075586/0889 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 10, 2023
From: SAKURAI, HAYATO; KAMBE, TAKASHI
To: TAIYO NIPPON SANSO CORPORATION
Reel/Frame 063606/0424 →
Priority Claims (1)
JP 2020-188709 · Nov 12, 2020 · national
Continuity (1)
Related Publication 20230405523A1 · Dec 21, 2023
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