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acetic anhydride synth ( acetone&co2)

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ambi:
I am not sure if anyone has mentioned this ever, but after a lil' searching, couple'a key words changed, the patent Patent GB237302 popped up,.

I believe this will have a wide impact on otc chemistry as we know it,.

I couldn't believe it myself, but when the vapour of acetone and co2 are heated, Acetic anhydride is elegantly formed,.
Plus, it's isolation and purification coudn't be easier,.

I am proud to bring this news, and reallize all the goodies that can be made with AA,.

The AA war is over, - 06/11/04

thankyou
ambi ;)

Rhodium:
It's not especially new - UTFSE for "ketene lamp"

ambi:
The patent, describes heating the vapours of acetone & Co2,
the ketene involves a lamp, and no co2,.

Have you read the patent?

Running a tube of co2 through boiling acetone, is a hell of a lot different than the ketene method, maybe the chemistry is vaguely similar, but this is simple, and rquires no electricity,.

lugh:
It's clear that you haven't read the patent thoroughly, pressure catalyzed processes aren't practical for the average bee, but some do have the capability  ;)  The keten lamp is far more practical for the average bee, it also utilizes acetone, and doesn't require pressure  ;D  If you keep researching the topic, you'll many more industrial process patents like the one you found:

Patent GB237302



for example

Patent GB309577



Patent GB425973



and Patent GB668268



8)

roger2003:
The critical temperature is 31,3° C and the critical pressure 72,9 bar

If you work with the above patent, you need a lot of technical security systems.

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