PL404692A1 - A method of purifying epichlorohydrin - Google Patents
A method of purifying epichlorohydrinInfo
- Publication number
- PL404692A1 PL404692A1 PL404692A PL40469213A PL404692A1 PL 404692 A1 PL404692 A1 PL 404692A1 PL 404692 A PL404692 A PL 404692A PL 40469213 A PL40469213 A PL 40469213A PL 404692 A1 PL404692 A1 PL 404692A1
- Authority
- PL
- Poland
- Prior art keywords
- rectification column
- epichlorohydrin
- distillate
- recirculated
- reflux
- Prior art date
Links
Landscapes
- Epoxy Compounds (AREA)
Abstract
Sposób oczyszczania epichlorohydryny, z wykorzystaniem procesu destylacji, według wynalazku charakteryzuje się tym, że epichlorohydrynę poddaje się destylacji na pierwszej kolumnie rektyfikacyjnej (1) otrzymując destylat, który wykrapla się w deflegmatorze (2) i oddziela od fazy parowej w rozdzielaczu (3). Skropliny zawraca się jako orosienie kolumny rektyfikacyjnej (1), a nieskroplony destylat poddaje się rozdzielaniu na drugiej kolumnie rektyfikacyjnej (4), zaś niedogon odbiera się z dołu pierwszej kolumny rektyfikacyjnej (1). Destylat z drugiej kolumny rektyfikacyjnej (4) skrapla się w chłodnicy (5), rozdziela w rozdzielaczu (6) na fazę organiczną oraz wodną, przy czym warstwę organiczną recyrkuluje się jako orosienie drugiej kolumny rektyfikacyjnej (4), a frakcję wodną wykorzystuje się do sporządzania roztworu wodorotlenku wapnia, zaś na jednej z dolnych półek powyżej wyparki (10) za pośrednictwem skraplacza (8) odbiera się najwyższej czystości epichlorohydrynę. Niedogon z drugiej kolumny rektyfikacyjnej (4) recyrkuluje się do pierwszej kolumny rektyfikacyjnej (1).The process for purifying epichlorohydrin using a distillation process according to the invention is characterized in that epichlorohydrin is distilled on the first rectification column (1) to obtain a distillate which condenses in the deflector (2) and separates from the vapor phase in the separator (3). The condensate is recycled as a reflux of the rectification column (1), and the non-condensed distillate is separated on the second rectification column (4), while the low-temperature condensate is collected from the bottom of the first rectification column (1). The distillate from the second rectification column (4) is condensed in a condenser (5), separated in a separating funnel (6) into an organic and aqueous phase, the organic layer being recirculated as reflux of the second rectification column (4) and the aqueous fraction is used to prepare calcium hydroxide solution, while on one of the lower shelves above the evaporator (10) the highest purity epichlorohydrin is collected via a condenser (8). The insufficiency from the second rectification column (4) is recirculated to the first rectification column (1).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL404692A PL222176B1 (en) | 2013-07-16 | 2013-07-16 | A method of purifying epichlorohydrin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL404692A PL222176B1 (en) | 2013-07-16 | 2013-07-16 | A method of purifying epichlorohydrin |
Publications (2)
Publication Number | Publication Date |
---|---|
PL404692A1 true PL404692A1 (en) | 2015-01-19 |
PL222176B1 PL222176B1 (en) | 2016-07-29 |
Family
ID=52305572
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PL404692A PL222176B1 (en) | 2013-07-16 | 2013-07-16 | A method of purifying epichlorohydrin |
Country Status (1)
Country | Link |
---|---|
PL (1) | PL222176B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108530396A (en) * | 2018-06-12 | 2018-09-14 | 山东凯泰科技股份有限公司 | A kind of chloro propylene epoxidation method prepares the product purification method of epoxychloropropane |
-
2013
- 2013-07-16 PL PL404692A patent/PL222176B1/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108530396A (en) * | 2018-06-12 | 2018-09-14 | 山东凯泰科技股份有限公司 | A kind of chloro propylene epoxidation method prepares the product purification method of epoxychloropropane |
Also Published As
Publication number | Publication date |
---|---|
PL222176B1 (en) | 2016-07-29 |
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