High-pressure homogenizer and method for manufacturing graphene using the same

Patent metadata

Field	Value
Publication number	US-11820665-B2
Application number	US-202217569794-A
Country	US
Kind code	B2
Filing date	Jan 6, 2022
Priority date	Oct 18, 2016
Publication date	Nov 21, 2023
Grant date	Nov 21, 2023

Abstract

Provided a high-pressure homogenizer comprising a channel module comprising a microchannel through which an object for homogenization passes, wherein the microchannel is provided with a first flow channel and a second flow channel sequentially arranged along the direction through which the object passes, the first flow channel is provided with a plurality of first baffles disposed so as to partition the microchannel into a plurality of spaces, the second flow channel is provided with a plurality of second baffles disposed so as to partition the microchannel into a plurality of spaces, and at least one of the first baffles is provided to be positioned between two adjacent second baffles.

First claim

The invention claimed is:

1. A high-pressure homogenizer comprising a channel module comprising a microchannel through which an object for homogenization passes,
wherein the microchannel is provided with a first channel to an Nth channel, wherein N is greater than 2, sequentially arranged along a direction through which the object passes,
the channel module comprises an inflow channel in which the object is supplied to the microchannel and an outflow channel to which the object passing through the microchannel is introduced,
the first channel is provided with a plurality of first baffles arranged so as to be partitioned into a plurality of spaces along a width direction or a height direction and sequentially, the Nth channel comprises a plurality of Nth baffles arranged so as to be partitioned into a plurality of spaces along a width direction or a height direction,
in two adjacent regions among N regions of the microchannel, baffles provided in respective regions are arranged in a staggered state for each region based on a flow cross section of the microchannel,
wherein the microchannel has a rectangular cross section perpendicular to the moving direction of the object for homogenization,
wherein the rectangular cross section of the microchannel is a rectangular shape having a width larger than a height, and
wherein the microchannel has a ratio of width to height of 2:1 to 10:1.

2. The high-pressure homogenizer according to claim 1 ,
wherein the inflow channel is provided so that at least a part of a flow area becomes small along the moving direction of the object and the outflow channel is provided so that at least a part of the flow area increases along the moving direction of the object.

3. The high-pressure homogenizer according to claim 1 ,
wherein an interval between two adjacent first baffles is equal to an interval between two adjacent Nth baffles.

4. The high-pressure homogenizer according to claim 1 ,
wherein an interval between two adjacent first baffles is different from an interval between two adjacent Nth baffles.

5. The high-pressure homogenizer according to claim 1 ,
wherein a length of the first baffle and a length of the Nth baffle are the same.

6. The high-pressure homogenizer according to claim 1 ,
wherein a length of the first baffle and a length of the Nth baffle are different.

7. The high-pressure homogenizer according to claim 1 ,
wherein the channel module is provided so that the object passes through respective spaces partitioned by the first and Nth baffles.

8. The high-pressure homogenizer according to claim 1 ,
wherein the microchannel has a length of 2 mm to 1000 mm.

9. The high-pressure homogenizer according to claim 1 ,
wherein the microchannel has constant flow areas of the first channel and the Nth channel along the moving direction of the object.

10. The high-pressure homogenizer according to claim 1 ,
wherein the microchannel has a sectional area of 1.0×10 2 μm 2 ti 1.3×10 8 μm 2 .

11. The high-pressure homogenizer according to claim 1 ,
wherein the rectangular shape has a width of 10 μm to 50,000 μm.

12. The high-pressure homogenizer according to claim 1 ,
wherein the rectangular shape has a breadth of 10 μm to 50,000 μm.

13. The high-pressure homogenizer according to claim 1 ,
wherein the object is graphite.

Assignees

• Lg Chemical Ltd

Inventors

• Kim Eun Jeong
• Yoo Kwang Hyun
• Im Ye Hoon
• Kim In Young
• Kwon Won Jong

Classifications

• C01B32/19 Primary

  by exfoliation · CPC title

• B01F25/44121

  with a plurality of parallel slits, e.g. formed between stacked plates · CPC title

• B01F33/30

  Micromixers · CPC title

• B01J19/006

  Baffles · CPC title

• B01J19/0093

  Microreactors, e.g. miniaturised or microfabricated reactors (laboratory containers with capillary fluid transport in microfabricated channels or chambers B01L3/5027) · CPC title