Method for delivering a fine particle dispersion, and device for delivering a fine particle dispersion
First Claim
1. A method for delivering a fine particle dispersion to minimize stagnation, deposition or clogging comprising:
- arranging a microflow-channel such that a discharge section is positioned below an inlet section in a gravitational direction;
setting an angle of the microflow-channel extending from the inlet section to the discharge section within a range of 0°
to 45°
relative to the gravitational direction;
introducing a fine particle dispersion into the inlet secton; and
delivering the introduced fine particle dispersion to the discharge section by a liquid medium in a laminar flow state;
wherein the fine particle dispersion comprises fine particles which are dispersed in the liquid medium, the fine particles having a volume-average particle size within a range of 0.1 to 1000 μ
m and a specific gravity of the fine particles within a range of 1.01 to 21.00 times that of the liquid medium such that stagnation, deposition or clogging is minimized.
1 Assignment
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Accused Products
Abstract
Provided are a method for delivering a fine particle dispersion which makes it possible to flow the fine particle dispersion, as a stable flow, in a microflow-channel without sedimentation, being deposited on the bottom face of the inner surface of the channel or blocking up or clogging the channel, so as to give a high efficiency for recovering the fine particles; and a device for delivering a fine particle dispersion which can be used for a long period of time and which makes it possible to flow the fine particle dispersion as a stable flow in a microflow-channel without sedimentation, being deposited on the bottom face of the inner surfaces of the channel or blocking up or clogging the channel.
22 Citations
20 Claims
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1. A method for delivering a fine particle dispersion to minimize stagnation, deposition or clogging comprising:
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arranging a microflow-channel such that a discharge section is positioned below an inlet section in a gravitational direction; setting an angle of the microflow-channel extending from the inlet section to the discharge section within a range of 0°
to 45°
relative to the gravitational direction;introducing a fine particle dispersion into the inlet secton; and delivering the introduced fine particle dispersion to the discharge section by a liquid medium in a laminar flow state; wherein the fine particle dispersion comprises fine particles which are dispersed in the liquid medium, the fine particles having a volume-average particle size within a range of 0.1 to 1000 μ
m and a specific gravity of the fine particles within a range of 1.01 to 21.00 times that of the liquid medium such that stagnation, deposition or clogging is minimized. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for delivering a fine particle dispersion to minimize stagnation, deposition or clogging, comprising:
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using a microflow-channel comprising an inlet section, a discharge section, and comprising at least one portion at which the cross-sectional diameter of the microflow-channel changes; arranging the microflow-channel such that the discharge section is positioned below the inlet section in the gravitational direction; setting an angle of the-wall surfaces of the microflow-channel extending from the inlet section to the discharge section within a range of 0°
to 45°
relative to the gravitational direction; andintroducing a fine particle dispersion into the inlet section and delivering the introduced fine particle dispersion to the discharge section by a liquid medium in a laminar flow state; wherein the fine particle dispersion comprises fine particles which are dispersed in the liquid medium, the fine particles having a volume-average particle size within a range of 0.1 to 1000 μ
m and a specific gravity of the fine particles is within a range of 1.01 to 21.00 times that of the liquid medium such that stagnation, deposition or clogging is minimized. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A device for delivering a fine particle dispersion which minimizes stagnation, deposition or clogging, comprising:
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a microflow-channel having an inlet section and a discharge section, wherein the microflow-channel is arranged such that the discharge section is positioned below the inlet section in the gravitational direction, and an angle of the microflow-channel extending from the inlet section to the discharge section is set within a range of 0°
to 45°
relative to the gravitational direction, andwherein the fine particle dispersion comprises fine particles which are dispersed in a liquid medium, the fine particles having a volume-average particle size within a range of 0.1 to 1000 μ
m and a specific gravity of the fine particles within a range of 1.01 to 21.00 times that of the liquid medium, and the fine particle dispersion is delivered from the inlet section to the discharge section by the liquid medium flowing in a laminar flow state such that stagnation, deposition or clogging is minimized. - View Dependent Claims (16, 17)
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18. A device for delivering a fine particle dispersion which minimizes stagnation, deposition or clogging, comprising:
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a microflow-channel having an inlet section; a discharge section; and at least one portion at which the cross-sectional diameter of the microflow-channel changes, wherein the microflow-channel is arranged such that the discharge section is positioned below the inlet section in the gravitational direction, and an angle of the wall surfaces of the microflow-channel extending from the inlet section to the discharge section is set within a range of 0°
to 45°
relative to the gravitational direction, andwherein the fine particle dispersion comprises fine particles which are dispersed in a liquid, the fine particles having a volume-average particle size within a range of 0.1 to 1000 μ
m and a specific gravity of the fine particles is within a range of 1.01 to 21.00 times that of the liquid medium, and the fine particle dispersion is delivered from the inlet section to the discharge section by the liquid medium flowing in a laminar flow state such that stagnation, deposition or clogging is minimized. - View Dependent Claims (19, 20)
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Specification