LIST
FEGURÐ OG VELLÍÐAN
HANDVERK
MENNING OG SAGA
SKEMMTUN
UMHVERFI
MATUR OG DRYKKUR
ÖFUGVERKFRÆÐI
VÍSINDI
ÍÞRÓTTIR
TÆKNI
KLÆÐANLEG TÆKNI
Butyraldehyde: Butyl Alcohol Dehydrogenated over Copper Pellets at 400-680 °F (Hasche, Eastman, US 2,173,111)
Hot copper pulls two hydrogen atoms off butyl alcohol and leaves butyraldehyde. Hasche's catalyst is copper made from blown, water-quenched cuprous oxide, in dust-free pellets that can be burnt clean and reduced again when they tire.
Result: butyraldehyde, distilled off from the unchanged alcohol.
Source: Hasche, US 2,173,111 (Eastman Kodak, 1939), claims 6, 9 and 12. His worked run is for propyl alcohol; conversion for butanol is not given. Picture drawn by Youblob.
Lengra kominn
1 day
Leiðbeiningar
1
1
Pack the copper catalyst
Pack the copper catalyst
Fill a tube with dust-free copper pellets made from cuprous oxide blown from molten copper and quenched in water (2-5 mesh in claim 17).
Nauðsynleg verkfæri:
Koparhvatakorn
Pípuofn2
2
Preheat the butyl alcohol
Preheat the butyl alcohol
Vaporise and preheat the butyl alcohol to about 500-600 °F.
Efni fyrir þetta skref:
n-Bútanól1 as requiredNauðsynleg verkfæri:
Pípuofn3
3
Pass it over the copper at 400-680 °F
Pass it over the copper at 400-680 °F
Lead the hot vapour over the catalyst held at about 400-680 °F. It splits into butyraldehyde and hydrogen; part of the alcohol passes unchanged.
Nauðsynleg verkfæri:
KoparhvatakornPípuofn
Eimsvalaspírall4
4
Distil off the aldehyde
Distil off the aldehyde
Condense the products and distil: butyraldehyde comes over first (it boils near 74 °C); distil the alcohol back in the presence of alkali and return it.
Nauðsynleg verkfæri:
Þrepaeimingarkútur
Natríumhýdroxíð, 10 % lausn5
5
Reactivate the spent copper
Reactivate the spent copper
When the catalyst slows, flush it, oxidise it at about 600-800 °F, cool, and reduce it again with alcohol vapour at about 300-400 °F.
Nauðsynleg verkfæri:
KoparhvatakornPípuofnÞessi teikning býr til
Tengd Blueprint
Þessi blueprint deila þekkingu — tækni, efni eða meginreglur
CC0 opinbert ríki
Þessi teikning er gefin út undir CC0. Þér er frjálst að afrita, breyta, dreifa og nota þetta verk í hvaða tilgangi sem er, án þess að biðja um leyfi.
Studdu smiðinn með því að kaupa vörur í gegnum teikningu hans þar sem hann fær þóknun smiða sem seljendur ákvarða, eða búðu til nýja endurskoðun á þessari teikningu og tengdu hana sem tengingu í þinni eigin teikningu til að deila tekjum.