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US-2016207882-A1 · Jul 21, 2016 · US
Catalyst for glycerin dehydration, preparation method thereof, and preparation method of acrolein
US2015343430A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2015343430-A1 |
| Application number | US-201414653670-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 18, 2014 |
| Priority date | Nov 18, 2013 |
| Publication date | Dec 3, 2015 |
| Grant date | — |
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Abstract
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The present invention relates to a catalyst for glycerin dehydration, a preparation method thereof, and a preparation method of acrolein. The catalyst for glycerin dehydration exhibits a high glycerin conversion ratio, minimizes by-product formation to improve acrolein selectivity, and also maintains high catalytic activity during reaction.
First claim
Opening claim text (preview).
1 . A catalyst for glycerin dehydration, comprising a mixture of a metal sulfate and a zeolite. 2 . The catalyst for glycerin dehydration of claim 1 , wherein the metal sulfate includes one or more metals selected from the group consisting of copper, iron, zinc, calcium, and cobalt. 3 . The catalyst for glycerin dehydration of claim 1 , wherein the metal sulfate includes one or more selected from the group consisting of CuSO 4 , Fe 2 (SO 4 ) 3 , ZnSO 4 , CaSO 4 , and CoSO 4 . 4 . The catalyst for glycerin dehydration of claim 1 , wherein the zeolite includes one or more selected from the group consisting of β-zeolite and ZSM-5. 5 . The catalyst for glycerin dehydration of claim 1 , wherein the metal sulfate and the zeolite are included at a weight ratio of 1:3 to 10:1. 6 . The catalyst for glycerin dehydration of claim 1 , wherein the metal sulfate includes two kinds of sulfates containing different metals at a weight ratio of 1:1 to 1:5. 7 . A preparation method of a catalyst for glycerin dehydration, comprising the step of physically mixing a metal sulfate and a zeolite. 8 . The preparation method of claim 7 , wherein the metal sulfate includes one or more metals selected from the group consisting of copper, iron, zinc, calcium, and cobalt. 9 . The preparation method of claim 7 , wherein the metal sulfate includes one or more selected from the group consisting of CuSO 4 , Fe 2 (SO 4 ) 3 , ZnSO 4 , CaSO 4 , and CoSO 4 . 10 . The preparation method of claim 7 , wherein the zeolite includes one or more selected from the group consisting of β-zeolite and ZSM-5. 11 . The preparation method of claim 7 , wherein the metal sulfate and the zeolite are physically mixed at a weight ratio of 1:3 to 10:1. 12 . A preparation method of acrolein, comprising the step of reacting glycerin in the presence of the catalyst for glycerin dehydration of claim 1 . 13 . The preparation method of claim 12 , wherein the catalyst for glycerin dehydration is packed at a weight hourly space velocity of 10 to 300 mmol/h·g cat . 14 . The preparation method of claim 12 , wherein the step of reacting glycerin is performed at a temperature of 200 to 400° C.
Assignees
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Classifications
with alkali metals, copper, gold or silver · CPC title
Grinding · CPC title
Zeolite Beta · CPC title
containing rare earth elements, titanium, zirconium, hafnium, zinc, cadmium, mercury, gallium, indium, thallium, tin or lead · CPC title
Acryaldehyde; Methacryaldehyde · CPC title
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Frequently asked questions
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- What does patent US2015343430A1 cover?
- The present invention relates to a catalyst for glycerin dehydration, a preparation method thereof, and a preparation method of acrolein. The catalyst for glycerin dehydration exhibits a high glycerin conversion ratio, minimizes by-product formation to improve acrolein selectivity, and also maintains high catalytic activity during reaction.
- Who is the assignee on this patent?
- Lg Chemical Ltd
- What technology area does this patent fall under?
- Primary CPC classification B01J27/053. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Dec 03 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).