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I am not sure if anyone has mentioned this ever, but after a lil' searching, couple'a key words changed, the patent
Patent GB237302 (http://l2.espacenet.com/dips/viewer?PN=GB237302&CY=gb&LG=en&DB=EPD)
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 ;)
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It's not especially new -
UTFSE for "ketene lamp" (https://www.the-hive.ws/forum/search.pl?Cat=&All_Forums=on&Text_simple=ketene%20lamp&Preview=on&RatePlus=on&RateNeutral=on&Search_simple=on)
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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,.
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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 (http://l2.espacenet.com/dips/viewer?PN=GB237302&CY=gb&LG=en&DB=EPD)
(https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_imgs/pdf.gif)
for example
Patent GB309577 (http://l2.espacenet.com/dips/viewer?PN=GB309577&CY=gb&LG=en&DB=EPD)
(https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_imgs/pdf.gif)
Patent GB425973 (http://l2.espacenet.com/dips/viewer?PN=GB425973&CY=gb&LG=en&DB=EPD)
(https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_imgs/pdf.gif)
and Patent GB668268 (http://l2.espacenet.com/dips/viewer?PN=GB668268&CY=gb&LG=en&DB=EPD)
(https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_imgs/pdf.gif)
8)
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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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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,.