IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0653526
(2013-12-17)
|
| 등록번호 |
US-9475740
(2016-10-25)
|
| 국제출원번호 |
PCT/US2013/075863
(2013-12-17)
|
| 국제공개번호 |
WO2014/100039
(2014-06-26)
|
|
발명자
/ 주소 |
- Tirtowidjojo, Max M.
- Laitar, David S.
- Fish, Barry B.
- Kruper, Jr., William J.
|
| 출원인 / 주소 |
|
| 대리인 / 주소 |
|
| 인용정보 |
피인용 횟수 :
0 인용 특허 :
102 |
초록
▼
Processes for the production of chlorinated propenes are provided. The present processes make use of 1,2-dichloropropane, a by-product in the production of chlorohydrin, as a low cost starting material. 1,1,1,2,2-pentachloropropane produced by the process is subjected to catalytic dehydrochlorinatio
Processes for the production of chlorinated propenes are provided. The present processes make use of 1,2-dichloropropane, a by-product in the production of chlorohydrin, as a low cost starting material. 1,1,1,2,2-pentachloropropane produced by the process is subjected to catalytic dehydrochlorination and build-up of the same within the process is avoided.
대표청구항
▼
1. A process for the production of 1,1,2,3-tetrachloropropene from a feedstream comprising 1,2-dichloropropane, wherein the 1,2-dichloropropane is converted to one or more pentachloropropanes, wherein at least a portion of the pentachloropropanes produced by the process are catalytically dehydrochlo
1. A process for the production of 1,1,2,3-tetrachloropropene from a feedstream comprising 1,2-dichloropropane, wherein the 1,2-dichloropropane is converted to one or more pentachloropropanes, wherein at least a portion of the pentachloropropanes produced by the process are catalytically dehydrochlorinated using at least one dehydrochlorination catalyst selected from the group consisting of aluminum chloride, antimony pentachloride, titanium tetrachloride, and a combination of these, wherein the pentachloropropanes comprise 1,1,1,2,2-pentachloropropane, and wherein the catalytic dehydrochlorination produces a stream comprising 1,1,2,3-tetrachloropropene and unreacted pentachloropropanes. 2. he process of claim 1, wherein the total concentration of dehydrochlorination catalyst is less than 5 mole % of the total reaction mixture. 3. The process of claim 1, further comprising at least one additional liquid phase dehydrochlorination conducted in the presence of chemical base. 4. The process of claim 3, wherein the feedstream from the catalytic dehydrochlorination is provided to the liquid phase dehydrochlorination. 5. The process of claim 1, wherein the catalyst is quenched by the product of the chemical base dehydrochlorination and removed from the product stream. 6. The process of claim 1, wherein the feedstream further comprises 1,2,3-trichloropropane. 7. The process of claim 1, wherein HCI is generated as byproduct(s). 8. The process of claim 7, wherein HCI is recovered as anhydrous HCI. 9. The process of claim 3, wherein the chemical base comprises caustic, potasium hydroxide, calcium hydroxide or a combination of these. 10. The process of claim 1, wherein the product stream is quenched to reduce the dehydrochlorination catalyst. 11. The process of claim 10 wherein the quenched catalyst is removed from the product stream.
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