Ukusebenzisana
UBUCIKO
UBUHLE NEMPILO
UBUCIKO BEZANDLA
AMASIKO NOMLANDO
EZOKUZIJABULISA
IMVELO
UKUDLA NEZIPHUZO
REVERSE ENGINEERING
IZAYENSI
EZEMIDLALO
UBUCHWEPHESHE
IZINTO EZIGQOKWAYO
Cyclohexanone from Cyclohexanol Steam-Distilled over Copper-Chromium-Barium Oxide (Winans, Wingfoot, US 2,218,457)
Charlie

Yenziwe ngu-

Charlie

31. uMfumfu 2026DE
9
0
0
0
0

Cyclohexanone from Cyclohexanol Steam-Distilled over Copper-Chromium-Barium Oxide (Winans, Wingfoot, US 2,218,457)

Taking two hydrogens off cyclohexanol gives cyclohexanone, the slow solvent in PVC cement. Winans carried the alcohol with steam over a hot copper-chromium-barium oxide; the catalyst lasts and is woken again with hot air. Result: 330 g cyclohexanone from 351 g cyclohexanol, 94 %. Source: Winans, US 2,218,457 (Wingfoot, 1940), Example 1. Picture drawn by Youblob.
Osezingeni eliphezulu
1 day

Imiyalelo

1

Heat the catalyst tube

Fill a tube with copper-chromium-barium oxide catalyst and hold it at about 325 C (claimed range 180-400 C).

Amathuluzi adingekayo:

Isivuseleli se-copper chromiteIsivuseleli se-copper chromite
Isithando SepayipiIsithando Sepayipi
IthemomithaIthemomitha
2

Steam-distil the alcohol over it

Steam-distil 351 g of cyclohexanol through the tube over 4 hours.

Izinto zokwakha zalesi sinyathelo:

I-cyclohexanolI-cyclohexanol351 g

Amathuluzi adingekayo:

Ibhayela lesitimuIbhayela lesitimu
Isithando SepayipiIsithando Sepayipi
Isikali sesilinganisoIsikali sesilinganiso
3

Condense and fractionate

Condense the vapours and take the cut boiling at 150-156 C: 330 g cyclohexanone, 94 %.

Amathuluzi adingekayo:

Ugoqo lwe-condenserUgoqo lwe-condenser
Isicwengi esahlukanisayoIsicwengi esahlukanisayo
IthemomithaIthemomitha
4

Reactivate the catalyst

When it slows, pass air over the catalyst at 450 C.

Amathuluzi adingekayo:

Isithando SepayipiIsithando Sepayipi
IthemomithaIthemomitha

Izinto

1

Amathuluzi Adingekayo

7

Le blueprint yenza

Thumbnail
Isibambeli

I-cyclohexanone

Free

11
0

Ama-blueprint ahlobene

Lama-blueprint abelana ngolwazi — amasu, izinto noma izimiso

Cyclohexanol: Phenol Hydrogenated over Nickel, Sabatier 1922
Yingozi

Cyclohexanol: Phenol Hydrogenated over Nickel, Sabatier 1922

ngu-CharlieDE

Organic

11
0
0
0
0
0

CC0 Isizinda Somphakathi

Le blueprint ikhishwe ngaphansi kwe-CC0. Ukhululekile ukukopisha, ukuguqula, ukusabalalisa, nokusebenzisa ngaphandle kwemvume.

Sekela uMenzi ngokuthenga imikhiqizo nge-Blueprint yabo IKhomishane Yomenzi kumiswe ngabathengisi, noma dala inguqulo entsha yale Blueprint bese uyifaka njengoxhumaniso ku-Blueprint yakho ukuze wabelane ngemali engenayo.

Ingxoxo

(0)

Ngena ukuze ujoyine ingxoxo

Kulayishwa amazwana...