A kind of anti-carbon deposition heat conduction oil and preparation method thereof
A technology for preventing carbon deposition and heat transfer oil, which is applied in chemical instruments and methods, heat exchange materials, etc., can solve the problem of high carbon residue rate in heat transfer oil, improve the anti-carbon deposition performance, strong adsorption and capture ability, and improve stability. performance effect
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[0023] The preparation method of the heat conduction accelerator is as follows: take nitric acid with a mass fraction of 68% and add sulfuric acid with a mass fraction of 98% at a mass ratio of 2~5:2~6 to obtain a mixed solution, and take positive at -5~-1°C. Butanol is added dropwise to the mixture according to the mass ratio of 10~15:3~7, and the dropping time is controlled to be 30~60min, and the temperature is raised to 60~70°C for 1~3h, and the precipitate is washed and dried with deionized water, and then distilled under reduced pressure. , to obtain a vacuum distillate, take the vacuum distillate at a mass ratio of 5-9:1-3, add auxiliary heat conduction additives and mix to obtain a heat conduction accelerator.
[0024] Auxiliary heat conduction additives: take any one or any combination of tert-butyl peroxybenzoate, di-n-butyl oxalate, diisoamyl oxalate, tert-butyl hydroperoxide, and isooctyl nitrate in any mass ratio , that is.
[0025] The active raw material is: ta...
Embodiment 1
[0034] The preparation method of the heat conduction accelerator is as follows: Take nitric acid with a mass fraction of 68% and add sulfuric acid with a mass fraction of 98% at a mass ratio of 2:2 to obtain a mixed solution, and take n-butanol at a mass ratio of 10 at -5°C: 3 Add dropwise to the mixture, control the dropping time for 30min, heat up to 60°C and keep it warm for 1h, take the precipitate, wash and dry it with deionized water, and distill under reduced pressure to obtain a reduced-pressure distillate, which is taken under reduced pressure according to the mass ratio of 5:1 Add auxiliary heat conduction additives and mix to get heat conduction accelerator.
[0035] The auxiliary thermal conductivity additive is: tert-butyl peroxybenzoate.
[0036] The active raw material is: take 2,5-di-tert-butylhydroquinone and mix it with p-tert-butylcatechol at a mass ratio of 3:1.
[0037] The preparation method of the anti-carbon deposition additive is as follows: take the ...
Embodiment 2
[0045] The preparation method of the heat conduction accelerator is as follows: take nitric acid with a mass fraction of 68% and add sulfuric acid with a mass fraction of 98% at a mass ratio of 4:5 to obtain a mixed solution, and take n-butanol at a mass ratio of 13 at -3°C: Add 5 drops to the mixture, control the dropping time for 50 minutes, heat up to 65°C for 2 hours, take the precipitate, wash and dry it with deionized water, and distill under reduced pressure to obtain a reduced pressure distillate. Take the reduced pressure distillate according to the mass ratio of 8: 5 Add auxiliary heat conduction additives and mix to obtain a heat conduction accelerator.
[0046] The auxiliary thermal conductivity additive is: di-n-butyl oxalate.
[0047] The active raw material is: take 2,5-di-tert-butylhydroquinone and mix it with p-tert-butylcatechol at a mass ratio of 5:2.
[0048] The preparation method of the anti-carbon deposition additive is as follows: take the active raw m...
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