SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
UHANDISI WA KINYUME
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
Isopropyl Alcohol from Propene and Water
Charlie

Imeundwa na

Charlie

11. Oktoba 2026DE
36
0
0
0
0

Isopropyl Alcohol from Propene and Water

Isopropyl alcohol is made mainly by adding water to propene (propylene). In direct hydration, more common in Europe, propene of over 90 % purity and water react at high pressure over a solid acid catalyst. (The indirect route, common in the USA, goes through sulphate esters made with sulphuric acid, and a third route hydrogenates acetone.) The alcohol is then separated by distillation, but isopropyl alcohol and water form an azeotrope: plain distillation stops at 87.9 % alcohol and 12.1 % water. Dry alcohol is made by azeotropic distillation with an entrainer such as cyclohexane.
Juu
Continuous (industrial)

Maagizo

1

Hydrate

Feed propene (over 90 % pure) and water into the reactor at high pressure over the solid acid catalyst.

Vifaa kwa hatua hii:

PropiliniPropilini1 as required
MajiMaji1 as required

Zana zinazohitajika:

Rakta ya uhaidreshaji ya shinikizo kubwaRakta ya uhaidreshaji ya shinikizo kubwa
Kichocheo kigumu cha asidiKichocheo kigumu cha asidi
2

Distil

Distil the product to separate the alcohol from water and by-products; it comes over as the azeotrope, 87.9 % isopropyl alcohol.

Zana zinazohitajika:

Mkusanyiko wa nguzo ya kunerekaMkusanyiko wa nguzo ya kunereka
3

Dry

Distil again with cyclohexane as the entrainer to carry the remaining water off and leave dry isopropyl alcohol.

Zana zinazohitajika:

Mkusanyiko wa nguzo ya kunerekaMkusanyiko wa nguzo ya kunereka
SaikloheksaniSaikloheksani

Vifaa

2
  • 1
    Propilini
    1 as required
    Kishikilia Nafasi
  • 1
    Maji
    1 as required
    Kishikilia Nafasi

Zana Zinazohitajika

4

Mchoro huu unatengeneza

Thumbnail
Kishikilia nafasi

Alkoholi ya Isopropili 99%

Free

855
0

Blueprint zinazohusiana

Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni

PVA Wood Glue by Emulsion Polymerisation

PVA Wood Glue by Emulsion Polymerisation

na CharlieDE

Kemia

34
0
0
0
0
0

CC0 Umma Wote

Mchoro huu umetolewa chini ya CC0. Uko huru kunakili, kubadilisha, kusambaza, na kutumia kazi hii kwa madhumuni yoyote, bila kuomba ruhusa.

Saidia Mtengenezaji kwa kununua bidhaa kupitia Mchoro wao ambapo wanapata Kamisheni ya Mtengenezaji iliyowekwa na Wachuuzi, au unda marudio mapya ya Mchoro huu na uiunganishe kama kiungo katika Mchoro wako kuchangia mapato.

Majadiliano

(0)

Ingia kujiunga na majadiliano

Inapakia maoni...