Integrated process and methods of producing (E)-1-chloro-3,3,3-trifluoropropene
US-9045386-B2 · Jun 2, 2015 · US
Integrated Process for Making HCFO-1233zd and HFC-245fa
US2016332935A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016332935-A1 |
| Application number | US-201615088709-A |
| Country | US |
| Kind code | A1 |
| Filing date | Apr 1, 2016 |
| Priority date | May 12, 2015 |
| Publication date | Nov 17, 2016 |
| Grant date | — |
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Abstract
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A process is described wherein otherwise unusable by-products from a process for the manufacture of trans HCFO-1233zd(E) are converted to a valuable product by introducing them into a process for the production of HFC-245fa. The process includes the catalytic hydrofluorination of a reaction mixture comprising the HCFO-1233zd production by-products.
First claim
Opening claim text (preview).
What is claimed is: 1 . A process for making 1,1,1,3,3-pentafluoropropane (HFC-245fa) comprising the catalytic hydrofluorination of a reaction mixture comprising by-products formed during the production of 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd), wherein the byproducts are selected from the group consisting of isomers of HCFC-241, HCFC-242, HCFC-243 and mixtures thereof 2 . The process of claim 1 , wherein the HCFO-1233zd by-products are isolated from a process for the production of trans-1-chloro-3,3,3-trifluoropropene (HCFO-1233zd(E)) and wherein the by-products further comprise the cis isomer of HCFO-1233zd. 3 . The process of claim 1 , wherein the reaction mixture further includes HCC-240fa. 4 . The process of claim 1 , wherein the catalyst is selected from the group consisting of (I) pentavalent antimony, niobium, arsenic and tantalum halides; (II) pentavalent antimony, niobium, arsenic and tantalum mixed halides; and (III) mixtures of pentavalent antimony, niobium, arsenic and tantalum halide catalysts. 5 . The process of claim 4 , wherein the catalyst is selected from the group consisting of antimony pentachloride and antimony pentafluoride. 6 . The process of claim 4 , wherein the catalyst is selected from the group consisting of SbCl 2 F 3 and SbBr 2 F 3 . 7 . The process of claim 4 , wherein the catalyst is a mixture of antimony pentachloride and antimony pentafluoride. 8 . The process of claim 4 , wherein the catalyst is fluorinated antimony pentachloride. 9 . The process of claim 1 , wherein the catalyst is fluorinated antimony pentafluoride. 10 . A process for making 1,1,1,3,3-pentafluoropropane (HFC-245fa) comprising the catalytic hydrofluorination of a reaction mixture comprising isomers of HCFC-241, HCFC-242, HCFC-243, and the cis isomer of HCFO-1233zd, isolated from a process for the production of trans-1-chloro-3,3,3-trifluoropropene (HCFO-1233zd(E)). 11 . The process of claim 10 , wherein the reaction mixture further includes HCC-240fa. 12 . The process of claim 10 , wherein the catalyst is selected from the group consisting of (I) pentavalent antimony, niobium, arsenic and tantalum halides; (II) pentavalent antimony, niobium, arsenic and tantalum mixed halides; and (III) mixtures of pentavalent antimony, niobium, arsenic and tantalum halide catalysts. 13 . The process of claim 12 , wherein the catalyst is selected from the group consisting of antimony pentachloride and antimony pentafluoride. 14 . The process of claim 12 , wherein the catalyst is selected from the group consisting of SbCl 2 F 3 and SbBr 2 F 3 . 15 . The process of claim 12 , wherein the catalyst is a mixture of antimony pentachloride and antimony pentafluoride. 16 . The process of claim 10 , wherein the catalyst is fluorinated antimony pentachloride. 17 . The process of claim 10 , wherein the catalyst is fluorinated antimony pentafluoride. 18 . A process for making 1,1,1,3,3-pentafluoropropane (HFC-245fa) comprising the catalytic hydrofluorination of a reaction feed selected from the group consisting of isomers of HCFC-241, HCFC-242, HCFC-243, the cis isomer of HCFO-1233zd, and mixtures thereof.
Assignees
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Classifications
containing fluorine · CPC title
the other compound being MX · CPC title
- C07C17/206Primary
the other compound being HX · CPC title
- C07C17/21Primary
with simultaneous increase of the number of halogen atoms · CPC title
- C07C17/20Primary
of halogen atoms by other halogen atoms · CPC title
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Frequently asked questions
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- What does patent US2016332935A1 cover?
- A process is described wherein otherwise unusable by-products from a process for the manufacture of trans HCFO-1233zd(E) are converted to a valuable product by introducing them into a process for the production of HFC-245fa. The process includes the catalytic hydrofluorination of a reaction mixture comprising the HCFO-1233zd production by-products.
- Who is the assignee on this patent?
- Honeywell Int Inc
- What technology area does this patent fall under?
- Primary CPC classification C07C17/206. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Nov 17 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).