A kind of nanobubble isotope separation method and separation device and cascade

Abstract

The invention relates to a nano-bubble isotope separation method, a separation device and a cascade. The method firstly prepares a liquid containing nano-bubbles, and then the nano-bubble contacts the liquid during the rising process. When the nano-bubble rises to a certain height, the The heavier isotope enrichment products can be obtained, while the lighter isotope enrichment products are in the liquid phase of the separation cylinder, thereby realizing isotope separation. The separation device of the present invention comprises a nano-bubble generator, a cylindrical separator and a material feeding and reclaiming device, and the cascade is a series-parallel combination of a plurality of separation devices. The invention can be applied to the isotope separation of various elements, and is especially suitable for the separation of light isotopes, especially the separation of lithium isotopes. The invention also has the advantages of less investment, low energy consumption, cheap raw materials, rapid production, flexible scale and no pollution.

Description

technical field

[0001] The invention relates to isotope separation technology, nanotechnology and colloid and interface technology, in particular to a method and a separation device for separating isotopes with nano bubbles, and a cascade composed of a plurality of separation devices. Background technique

[0002] There are many isotope separation methods at home and abroad. The methods for separating uranium isotopes include centrifugal method, laser method, electromagnetic method, etc., and there are various physical-chemical methods for separating light isotopes (such as carbon, lithium, hydrogen, etc.), such as distillation method (including cryogenic distillation), electrolysis and gas-liquid, liquid-liquid isotope chemical exchange methods (such as lithium amalgam method, H 2 S-H 2 O double temperature exchange method) and so on. In addition, there are many various separation methods in the research and development stage.

[0003] According to the principle of isoto...

Examples

Embodiment 1

[0040] Example 1: Carbon Isotope Separation

[0041] A nanobubble isotope separation method according to the present invention comprises the following steps:

[0042] Step 1: Make CO 2 nanobubbles

[0043] will CO 2 Mixing gas and water to produce CO containing nanobubble generator 2 Aqueous solutions of nanobubbles;

[0044] like figure 2 shown, the CO produced 2 Nanobubble particle size is in the range of 50-500nm, of which CO2 is less than 200nm 2 Nanobubbles account for more than 70%; CO 2 The density of nanobubbles is 10 8 bubbles / ml;

[0045] Step 2: Separation of carbon isotopes

[0046] The CO-containing 2 The aqueous solution of nanobubbles is pumped into a 1-meter-high vertical separation cylinder, where the carbon isotope species to be separated are separated in CO. 2 In nanobubbles; CO 2 The nanobubbles rise with the water in the cylinder, and gradually fill the cylinder, forming a flocculent liquid column of white bubbles;

[0047] CO 2 The nanobub...

Embodiment 2

[0049] Example 2: Carbon Isotope Separation

[0050] A nanobubble isotope separation method according to the present invention comprises the following steps:

[0051] Step 1: Make CO 2 nanobubbles

[0052] will CO 2 The gas and water are mixed, and the CO is rapidly dispersed in the water by the nano-bubble generator 2 bubbles, making 0.1-100 microns of CO 2 Micron bubbles, and then use the pressure dissolved gas method to disperse the CO 2 Micro-bubbles further turn into CO 2 Nano-bubble, the particle size of the nano-bubble is 50-500nm, of which the nano-bubble less than 200nm accounts for more than 75%, and the density of the nano-bubble reaches 3×10 8 air bubbles / ml, and have a long lifespan in water, creating conditions for isotope separation.

[0053] Step 2: Separation of carbon isotopes

[0054] The CO-containing 2 The aqueous solution of nanobubbles is pumped into a 1-meter-high vertical separation cylinder, where the carbon isotope species to be separated ar...

Embodiment 3

[0056] Example 3: Separation of Lithium Isotopes

[0057] A nanobubble isotope separation method according to the present invention comprises the following steps:

[0058] Step 1: Make CO 2 nanobubbles

[0059] will CO 2 Gas and Li 2 SO 4 The solution is mixed, and the CO in the solution is quickly dispersed by the nanobubble generator 2 bubbles, making 50-100 microns of CO 2 Micron bubbles, and then use the pressure dissolved gas method to disperse the CO 2 Micro-bubbles further turn into CO 2 Nano-bubble, the particle size of the nano-bubble is 50-500nm, of which the nano-bubble less than 200nm accounts for more than 70%, and the density of the nano-bubble reaches 10 8 bubbles / ml or more, and in Li 2 SO 4 The longer lifetimes present in solution create conditions for isotope separation.

[0060] Step 2: Separation of Lithium Isotopes

[0061] The CO-containing 2 Li nanobubbles 2 SO 4 The solution is pumped into a vertical separation cylinder 10 meters high, wh...

technical field

[0001] The invention relates to isotope separation technology, nanotechnology and colloid and interface technology, in particular to a method and a separation device for separating isotopes with nano bubbles, and a cascade composed of a plurality of separation devices. Background technique

[0002] There are many isotope separation methods at home and abroad. The methods for separating uranium isotopes include centrifugal method, laser method, electromagnetic method, etc., and there are various physical-chemical methods for separating light isotopes (such as carbon, lithium, hydrogen, etc.), such as distillation method (including cryogenic distillation), electrolysis and gas-liquid, liquid-liquid isotope chemical exchange methods (such as lithium amalgam method, H 2 S-H 2 O double temperature exchange method) and so on. In addition, there are many various separation methods in the research and development stage.

[0003] According to the principle of isoto...

Examples

Embodiment 1

[0040] Example 1: Carbon Isotope Separation

[0041] A nanobubble isotope separation method according to the present invention comprises the following steps:

[0042] Step 1: Make CO 2 nanobubbles

[0043] will CO 2 Mixing gas and water to produce CO containing nanobubble generator 2 Aqueous solutions of nanobubbles;

[0044] like figure 2 shown, the CO produced 2 Nanobubble particle size is in the range of 50-500nm, of which CO2 is less than 200nm 2 Nanobubbles account for more than 70%; CO 2 The density of nanobubbles is 10 8 bubbles / ml;

[0045] Step 2: Separation of carbon isotopes

[0046] The CO-containing 2 The aqueous solution of nanobubbles is pumped into a 1-meter-high vertical separation cylinder, where the carbon isotope species to be separated are separated in CO. 2 In nanobubbles; CO 2 The nanobubbles rise with the water in the cylinder, and gradually fill the cylinder, forming a flocculent liquid column of white bubbles;

[0047] CO 2 The nanobub...

Embodiment 2

[0049] Example 2: Carbon Isotope Separation

[0050] A nanobubble isotope separation method according to the present invention comprises the following steps:

[0051] Step 1: Make CO 2 nanobubbles

[0052] will CO 2 The gas and water are mixed, and the CO is rapidly dispersed in the water by the nano-bubble generator 2 bubbles, making 0.1-100 microns of CO 2 Micron bubbles, and then use the pressure dissolved gas method to disperse the CO 2 Micro-bubbles further turn into CO 2 Nano-bubble, the particle size of the nano-bubble is 50-500nm, of which the nano-bubble less than 200nm accounts for more than 75%, and the density of the nano-bubble reaches 3×10 8 air bubbles / ml, and have a long lifespan in water, creating conditions for isotope separation.

[0053] Step 2: Separation of carbon isotopes

[0054] The CO-containing 2 The aqueous solution of nanobubbles is pumped into a 1-meter-high vertical separation cylinder, where the carbon isotope species to be separated ar...

Embodiment 3

[0056] Example 3: Separation of Lithium Isotopes

[0057] A nanobubble isotope separation method according to the present invention comprises the following steps:

[0058] Step 1: Make CO 2 nanobubbles

[0059] will CO 2 Gas and Li 2 SO 4 The solution is mixed, and the CO in the solution is quickly dispersed by the nanobubble generator 2 bubbles, making 50-100 microns of CO 2 Micron bubbles, and then use the pressure dissolved gas method to disperse the CO 2 Micro-bubbles further turn into CO 2 Nano-bubble, the particle size of the nano-bubble is 50-500nm, of which the nano-bubble less than 200nm accounts for more than 70%, and the density of the nano-bubble reaches 10 8 bubbles / ml or more, and in Li 2 SO 4 The longer lifetimes present in solution create conditions for isotope separation.

[0060] Step 2: Separation of Lithium Isotopes

[0061] The CO-containing 2 Li nanobubbles 2 SO 4 The solution is pumped into a vertical separation cylinder 10 meters high, wh...

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