Melgar
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Nitroparaffin synthesis via industrial route
Nitroparaffins like nitromethane, nitroethane, and the two isomers of nitropropane are produced industrially by reacting HNO3 and propane at about 150
psi and 400 degrees C. Now, these two reagents are far more easily obtained than the ones usually referred to for lab-scale syntheses, the only
problem seems to be the specialized equipment needed. Still, this temperature and pressure combination is by no means beyond the capability of a
homemade device built from stainless steel tubing. Has anyone looked into building something that could do this? If not, I'm thinking I could give
it a try in the near future.
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quicksilver
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Quote: Originally posted by Melgar  | | Nitroparaffins like nitromethane, nitroethane, and the two isomers of nitropropane are produced industrially by reacting HNO3 and propane at about 150
psi and 400 degrees C. Now, these two reagents are far more easily obtained than the ones usually referred to for lab-scale syntheses, the only
problem seems to be the specialized equipment needed. Still, this temperature and pressure combination is by no means beyond the capability of a
homemade device built from stainless steel tubing. Has anyone looked into building something that could do this? If not, I'm thinking I could give
it a try in the near future. |
It's actually easier than it seems! but it's pretty damn dangerous.
Remember the containers that propane comes in for camping or BBQ's? If you had an empty one and a one with propane, you could open the empty one via
unscrewing the petcock and pulling all of the valve and dongle. The measure out your HNO3 and re-seal. Then the propane would be added by using two
flow valves connected together and you would be able to mix your two materials in one tank. The hairy stuff comes when you need to get your heat to
400C and calculate the needed room for the reaction.....
Superficially, if you had access to a great many measurements & tables of rated strength / pressure, those tanks are VERY tough. It MAY not blow
if the temp was measured evenly enough. But I sure would not want to be close by.....
[Edited on 20-5-2010 by quicksilver]
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zed
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Melgar, if the reaction permits it, go for much higher pressures, and somewhat lower temperatures.
Small inside-diameter stainless steel tubing, laughs at high pressures. Several thousand PSI, might be quite safe. On the other hand, 400C is
really hot.
http://www.webcoindustries.com/tubing/stainless/pressurerati...
[Edited on 6-8-2010 by zed]
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Texium
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Thread Moved
19-11-2023 at 15:17 |
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