Ubufatanye
UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
IBIRIBWA N'IBINYOBWA
UBWUBATSI BUSUBIRA INYUMA
UBUMENYI
SIPORO
IKORANABUHANGA
IBYAMBARWA
Cyclohexanone from Cyclohexanol Steam-Distilled over Copper-Chromium-Barium Oxide (Winans, Wingfoot, US 2,218,457)
Charlie

Yaremwe na

Charlie

31. Ukwakira 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.
Hejuru
1 day

Amabwiriza

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).

Ibikoresho bikenewe:

Umuti wihutisha wa copper chromiteUmuti wihutisha wa copper chromite
Itanura ry'umuyoboroItanura ry'umuyoboro
Igipima UbushyuheIgipima Ubushyuhe
2

Steam-distil the alcohol over it

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

Ibikoresho by'iyi ntambwe:

SikolohegisanoliSikolohegisanoli351 g

Ibikoresho bikenewe:

Inkono itanga umwuka w'amaziInkono itanga umwuka w'amazi
Itanura ry'umuyoboroItanura ry'umuyoboro
Umunzani w'ibiroUmunzani w'ibiro
3

Condense and fractionate

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

Ibikoresho bikenewe:

Umuzingo w'ikondanseriUmuzingo w'ikondanseri
Ikinyuza umwuka gitandukanyaIkinyuza umwuka gitandukanya
Igipima UbushyuheIgipima Ubushyuhe
4

Reactivate the catalyst

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

Ibikoresho bikenewe:

Itanura ry'umuyoboroItanura ry'umuyoboro
Igipima UbushyuheIgipima Ubushyuhe

Ibikoresho

1

Ibikoresho bikenewe

7

Iki gishushanyo gikora

Thumbnail
Agateganyo

Sikolohegisanone

Free

11
0

Blueprint zijyanye

Izi blueprint zisangira ubumenyi — uburyo, ibikoresho cyangwa amahame

Cyclohexanol: Phenol Hydrogenated over Nickel, Sabatier 1922
Akaga

Cyclohexanol: Phenol Hydrogenated over Nickel, Sabatier 1922

na CharlieDE

Kamere

11
0
0
0
0
0

CC0 Umurenge rusange

Iyi blueprint yasohowe munsi ya CC0. Ushobora gukoporora, guhindura, gukwirakwiza no gukoresha nta kwemererwa.

Shyigikira Umuremyi ugura ibicuruzwa binyuze muri Blueprint ye Komisiyo y'Umuremyi byashyizweho n'Abacuruzi, cyangwa kora verisiyo nshya y'iyi Blueprint ukayinjiza nk'isano muri Blueprint yawe kugira ngo musangire inyungu.

Ibiganiro

(0)

Injira kugira ngo ujye mu biganiro

Gutegura ibitekerezo...