acetic anhydride synth ( acetone&co2)

[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    If you keep researching the topic, you'll many more industrial process patents like the one you found:

Patent GB237302

https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_docs/000539953-GB237302.pdf" target="_blank" title="Download this file">

for example

Patent GB309577

https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_docs/000539953-GB309577.pdf" target="_blank" title="Download this file">

Patent GB425973

https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_docs/000539953-GB425973.pdf" target="_blank" title="Download this file">

and

Patent GB668268

https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_docs/000539953-GB668268.pdf" target="_blank" title="Download this file">

[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.

[ambi]

With out me having to be rude, I suggest all bee's re-read the patent,
Pressure is not necessary, got damn, there are some pompus and vacant monopolies of arrogance hijacking, once what used to be a fine place,.

so there, no pressure,

re-read.

ambi

forget it,.