Adsorbent for removing hexafluoropropylene in octafluorocyclobutane and method for preparing adsorbent

A technology of octafluorocyclobutane and hexafluoropropylene, which is applied in the field of octafluorocyclobutane purification, can solve the problems of slow progress in synthesis and purification technology, and achieve the effects of firm and stable combination, uniform growth, and uniform pore size distribution

Active Publication Date: 2018-02-16
SUZHOU JINHONG GAS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are not many manufacturers producing high-purity octafluorocyclobutane in China at present, and the progress in synthesis and purification technology is relatively slow.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A preparation method for an adsorbent for removing hexafluoropropylene in octafluorocyclobutane, comprising the steps of:

[0035] (1) Add the salt solution of iron oxide, copper oxide and tin oxide into the hydrothermal kettle, and stir evenly;

[0036] (2) Add salt solutions of gallium, platinum, cadmium and molybdenum to the above-mentioned hydrothermal kettle for doping modification;

[0037] (3) Add wire mesh packing into the above-mentioned hydrothermal kettle, put the above-mentioned hydrothermal kettle with metal mesh filler into the drying oven, and react the solution in the above-mentioned hydrothermal kettle at a hydrothermal treatment temperature of 120°C for 60 minutes;

[0038] (4) Take the above-mentioned hydrothermal kettle out of the above-mentioned drying oven, and cool it at room temperature, and the modified iron oxide, copper oxide, and tin oxide nanoparticles will grow on the above-mentioned wire mesh filler;

[0039] Wherein, after step (1) (2), ...

Embodiment 2

[0041] A preparation method of an adsorbent for removing hexafluoropropylene in octafluorocyclobutane, said preparation method comprising the steps of:

[0042] (1) Add the salt solution of iron oxide, copper oxide and tin oxide into the hydrothermal kettle, and stir evenly;

[0043] (2) adding salt solutions of gallium, platinum, cadmium and molybdenum into the hydrothermal kettle for doping modification;

[0044] (3) Add wire mesh packing into the hydrothermal kettle, put the hydrothermal kettle with the metal mesh filler into the drying oven, and the solution in the hydrothermal kettle is at a hydrothermal treatment temperature of 135°C Reaction 55min;

[0045] (4) Take the hydrothermal kettle out of the drying oven, cool it at room temperature, and the modified iron oxide, copper oxide, and tin oxide nanoparticles will grow on the wire mesh filler;

[0046] Wherein, after step (1) (2), the filling degree of the salt solution in the hydrothermal kettle with iron oxide, co...

Embodiment 3

[0048] A preparation method of an adsorbent for removing hexafluoropropylene in octafluorocyclobutane, said preparation method comprising the steps of:

[0049] (1) Add the salt solution of iron oxide, copper oxide and tin oxide into the hydrothermal kettle, and stir evenly;

[0050] (2) adding salt solutions of gallium, platinum, cadmium and molybdenum into the hydrothermal kettle for doping modification;

[0051] (3) Add wire mesh packing into the hydrothermal kettle, put the hydrothermal kettle with the metal mesh filler into the drying oven, and the solution in the hydrothermal kettle is under the hydrothermal treatment temperature of 150°C Reaction 50min;

[0052] (4) Take the hydrothermal kettle out of the drying oven, cool it at room temperature, and the modified iron oxide, copper oxide, and tin oxide nanoparticles will grow on the wire mesh filler;

[0053] Wherein, after step (1) (2), the filling degree of the salt solution in the hydrothermal kettle with iron oxid...

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PUM

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Abstract

The invention discloses an adsorbent for removing hexafluoropropylene in octafluorocyclobutane. The adsorbent comprises, by weight, 10-25% of iron oxide, 5-20% of copper oxide, 60-80% of tin oxide, 0.05-0.5% of gallium, 0.05-0.3% of platinum, 0.1-1.5% of cadmium and 0.1-3% of molybdenum. The invention further discloses a method for preparing the adsorbent. The method includes steps of (1), addingsalt solution of the iron oxide, the copper oxide and the tin oxide into a hydrothermal reactor and uniformly stirring the salt solution of the iron oxide, the copper oxide and the tin oxide; (2), adding salt solution of the gallium, the platinum, the cadmium and the molybdenum into the hydrothermal reactor and carrying out doping modification; (3), adding metal mesh packing into the hydrothermalreactor, placing the hydrothermal reactor with the added metal mesh packing into a drying oven and carrying out reaction on solution in the hydrothermal reactor at the hydrothermal treatment temperatures of 110-160 DEG C for 40-70 min. The adsorbent and the method have the advantage that the hexafluoropropylene in the octafluorocyclobutane can be effectively removed by the adsorbent.

Description

technical field [0001] The invention relates to the field of octafluorocyclobutane purification, in particular to an adsorbent for removing hexafluoropropylene in octafluorocyclobutane. Background technique [0002] Octafluorocyclobutane, also known as perfluorocyclobutane, has stable chemical properties, is non-toxic and has no impact on ozone, and has a low greenhouse effect. It is a green and environmentally friendly special gas, mainly used in high-voltage insulation and VLSI etchant , Mixed refrigerants instead of chlorofluorocarbons, aerosols, cleaning agents (for the electronics industry), sprays, heat pump working fluids, etc. With the implementation of the Montreal Protocol and the rapid growth of the electronics industry, the role of octafluorocyclobutane is becoming more and more important, and its usage is also increasing year by year. It is an important special fluorine-containing gas, which is used in high-voltage insulation, etching, refrigerants and other fie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/06B01J20/28B01J20/30B01D53/02
CPCB01D53/02B01D2257/2066B01J20/02B01J20/06B01J20/28007B01J20/28054
Inventor 金向华孙猛夏致远金小贤唐璐周珽
Owner SUZHOU JINHONG GAS CO LTD
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