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Tetrafluoropropene composition with good lubricant compatibility and preparation method thereof

A tetrafluoropropene and lubricant technology, which is applied in the field of tetrafluoropropene composition and its preparation, can solve the problems of increasing equipment investment and energy consumption, affecting the degree of two-phase mixing, affecting the heat transfer performance of refrigerants, etc. The effect of low flammability, low flammability and low cost

Active Publication Date: 2015-03-11
JUHUA GROUP TECH CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Existing methods must use mechanical stirring and disturbance to mix refrigerants, or add surfactants to form microemulsions. It is difficult for nanoparticles to be evenly distributed in the two-phase system, and it must be continuous even when additives are added. External stirring or circulation is applied to promote the mixing of the two phases. The presence or absence and continuity of this external force will greatly affect the mixing degree of the two phases, thus affecting the heat transfer performance of the refrigerant.
In addition, the external mechanical shear force, electromagnetic field and ultrasonic wave have greatly increased equipment investment and energy consumption.

Method used

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  • Tetrafluoropropene composition with good lubricant compatibility and preparation method thereof
  • Tetrafluoropropene composition with good lubricant compatibility and preparation method thereof
  • Tetrafluoropropene composition with good lubricant compatibility and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A kind of tetrafluoropropene composition with good lubricant compatibility, by every 1g, formula is as follows:

[0032]

[0033]

[0034] Its preparation method is as follows:

[0035] The preparation of step (1) nano-lubricant

[0036] In a stirred reactor, disperse 48.75 parts of fluorine-modified Ni-containing hydrotalcite into 1,000,000 parts of ethanol according to the proportion, then add 1.25 parts of KH550 silane coupling agent, react at 25°C for 15 hours, filter to remove ethanol, and then add 4950 Parts of polyalkylene glycol (PAG) were reacted at 25°C for 15 hours to obtain a nano-lubricant.

[0037] Step (2) mixing in the high-throughput microchannel glass reactor

[0038] Mix the nano-lubricant prepared in step (1) with 600,000 parts of 2,3,3,3-tetrafluoropropene (HFO1234yf), 270,000 parts of fluoroethane (HFC-161), and 100,000 parts of 1,1-difluoroethane (HFC-152a), 24991 parts of isobutane (HC600a), 9 parts of bis(trifluoromethylsulfonyl)imidate...

Embodiment 2

[0040] A kind of tetrafluoropropene composition with good lubricant compatibility, by every part of 1Kg, formula is as follows:

[0041]

[0042] Its preparation method is as follows:

[0043] The preparation of step (1) nano-lubricant

[0044] In a stirred reactor, disperse 0.00497 parts of fluorine-modified Ni-containing hydrotalcites into 1000 parts of ethanol according to the proportion, then add 0.00002 g parts of KH570 silane coupling agent, react at room temperature for 10 hours, filter to remove ethanol, and then add 0.99501 Parts of polyalkylene glycol (PAG), react at room temperature for 10 hours, and obtain nano-lubricant.

[0045] Step (2) mixing in the high-throughput microchannel glass reactor

[0046] The nano-lubricant prepared in step (1) is mixed with 200 parts of 2,3,3,3-tetrafluoropropene (HFO1234yf), 600 parts of fluoroethane (HFC-161), 150 parts of 1,1-difluoroethane (HFC-152a), 48.992 parts of isobutane (HC600a), 0.008 parts of bis(trifluoromethyls...

Embodiment 3

[0048] A kind of tetrafluoropropene composition with good lubricant compatibility, by every 1g, formula is as follows:

[0049]

[0050] Its preparation method is as follows:

[0051] The preparation of step (1) nano-lubricant

[0052] In a stirred reactor, disperse 147.78 parts of fluorine-modified Ni-containing hydrotalcites into 1,000,000 parts of ethanol according to the proportion, then add 2.12 parts of DL602 silane coupling agent, react at room temperature for 20 hours, filter to remove ethanol, and then add 9850 Parts of polyol ester (POE) lubricating oil, react at room temperature for 20h to obtain nano-lubricant.

[0053] Step (2) mixing in the high-throughput microchannel glass reactor

[0054] Mix the nano-lubricant prepared in step (1) with 900,000 parts of 2,3,3,3-tetrafluoropropene (HFO1234yf), 50,000 parts of fluoroethane (HFC-161), and 35,000 parts of 1,1-difluoroethane (HFC-152a), 4990 parts of isobutane (HC600a), 10 parts of bis(trifluoromethylsulfonyl...

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Abstract

The invention discloses a tetrafluoropropene composition with good lubricant compatibility and a preparation method thereof. The compositions comprises, in parts by weight, 0.4-15 parts of fluorine-modified Ni-containing hydrotalcite-like compound, 0.002-0.25 part of a silane coupling agent, 49.5-985 parts of a lubricant, 4000-90000 parts of 2,3,3,3-tetrafluoropropene, 0-60000 parts of fluoroethane, 0-15000 parts of 1,1-difluoroethane, 0-5000 parts of isobutane, and 0.8-1 part of N-propyl-3-methylpyridinium bis(trifluoromethylsulfonyl)imide. The invention also provided a preparation method of the tetrafluoropropene composition. The tetrafluoropropene composition has god lubricant compatibility and flame retardation performance.

Description

technical field [0001] The invention relates to the field of refrigerants, in particular to a tetrafluoropropylene composition with good lubricant compatibility and a preparation method thereof. Background technique [0002] In a refrigeration, air conditioning, or heat transfer system, it is expected that the lubricating oil and refrigerant may come into contact with each other in at least some portion of the system, as described in the ASHRAE Handbook: HVAC Systems and Equipment. Therefore, whether the lubricant and refrigerant are added to a refrigeration, air conditioning, or heat transfer system individually or as part of a premixed package, they are still expected to be in contact in the system and must therefore be compatible of. Due to the extremely fine grains, the atoms in the grain boundaries and defect centers in the grains and their own quantum size effects, small size effects, surface effects and macroscopic quantum tunneling effects make nanomaterials have sp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/04C10M169/04C10N40/30
CPCC09K5/045C09K2205/126C09K2205/134C10M169/045C10N2020/101C10N2040/30
Inventor 王金明
Owner JUHUA GROUP TECH CENT
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