Catalyst for partial oxidation and preparation method thereof
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01J-023/24
B01J-023/16
B01J-023/28
B01J-023/74
B01J-023/882
B01J-023/76
B01J-023/883
출원번호
UP-0064016
(2005-02-24)
등록번호
US-7544633
(2009-07-01)
우선권정보
KR-10-2004-0012646(2004-02-25)
발명자
/ 주소
Kang, Jung Hwa
Lee, Won Ho
Kil, Min Ho
Moon, Sang Heup
Jo, Bu Young
출원인 / 주소
LG Chem, Ltd.
대리인 / 주소
McKenna Long & Aldridge, LLP
인용정보
피인용 횟수 :
4인용 특허 :
8
초록▼
The present invention relates to a catalyst for partial oxidation and a preparation method thereof, more particularly to a preparation method of a complex metal oxide catalyst that shows high activity for conversion of propylene or isobutylene, maintains good selectivity for such unsaturated aldehyd
The present invention relates to a catalyst for partial oxidation and a preparation method thereof, more particularly to a preparation method of a complex metal oxide catalyst that shows high activity for conversion of propylene or isobutylene, maintains good selectivity for such unsaturated aldehyde as acrolein or methacrolein and improves production yield of such unsaturated carboxylic acid as acrylic acid or methacrylic acid through stable process by using a drying control chemical additive.
대표청구항▼
The invention claimed is: 1. A catalyst for partial oxidation having a surface area of 15-18 m2/g, which is represented by the following Chemical Formula 1: [Chemical Formula 1] MoaBibFecXdYeO f (1) wherein X is at least one element selected from the group consisting of Co and Ni; Y is at least
The invention claimed is: 1. A catalyst for partial oxidation having a surface area of 15-18 m2/g, which is represented by the following Chemical Formula 1: [Chemical Formula 1] MoaBibFecXdYeO f (1) wherein X is at least one element selected from the group consisting of Co and Ni; Y is at least one element selected from the group consisting of K, Cs and Rb; each of a, b, c, d, e and f represents the atomic mole ratio of each metal, and when a is 12, b is 0.5˜2, c is 0.5˜2, d is 3˜8, and e is 0.005˜0.2, and f is determined according to oxidation state of each metal. 2. A method of preparing a catalyst for partial oxidation represented by the following Chemical Formula 1, which comprises the steps of: (a) dissolving an aqueous solution of at least one metal salt, the metal being selected from the group consisting of molybdenum, bismuth, iron, cobalt, nickel, potassium, cesium and rubidium in an organic acid and adding a drying control chemical additive to prepare a catalyst suspension; (b) drying the catalyst suspension in vacuum and crushing it to obtain a catalyst powder; and (c) calcining the catalyst powder in air [Chemical Formula 1] MoaBibFecXdYeO f (1) wherein X is at least one element selected from the group consisting of Co and Ni; Y is at least one element selected from the group consisting of K, Cs and Rb; each of a, b, c, d, e and f represents the atomic mole ratio of each metal, and when a is 12, b is 0.5˜2, c is 0.5˜2, d is 3˜8, and e is 0.005˜0.2, and f is determined according to oxidation state of each metal. 3. The method of claim 2, wherein the drying control chemical additive is a material having a surface tension smaller than that of water and a boiling point higher than that of water. 4. The method of claim 2, wherein the drying control chemical additive is at least one selected from the group consisting of glycerol, propionic acid, formamide, nitromethane, propyl alcohol, butyl alcohol, ethanediol, nitroethane, amyl acetate, ethyl propionate, ethyl malonate, furfurol, (α,β,γ)-picoline, piperidine, phenylhydrazine, 1-pentanol, 3-methylbutanol and isovaleric acid. 5. The method of claim 2, wherein the drying control chemical additive is added in 10-60 wt % per 100 wt % of the organic acid. 6. The method of claim 2, wherein the organic acid is at least one organic acid having 1 to 10 carbon atoms, which selected is selected from the group consisting of nitric acid, citric acid, maleic acid and oxalic acid. 7. A method of preparing an unsaturated carboxylic acid comprising the step of partially oxidizing an alkane, an alkene or a mixture thereof in the presence of a catalyst represented by the following Chemical Formula 1, which has been prepared by the method of claim 2: [Chemical Formula 1] MoaBibFecXdYeO f (1) wherein X is at least one element selected from the group consisting of Co and Ni; Y is at least one element selected from the group consisting of K, Cs and Rb; each of a, b, c, d, e and f represents the atomic mole ratio of each metal, and when a is 12, b is 0.5˜2, c is 0.5˜2, d is 3˜8, and e is 0.005˜0.2, and f is determined according to oxidation state of each metal. 8. The method of claim 7, wherein the unsaturated carboxylic acid is acrylic acid or methacrylic acid. 9. A method of preparing an unsaturated nitrile comprising the step of partially oxidizing an alkane, an alkene or a mixture thereof and ammonia in the presence of a catalyst represented by the following Chemical Formula 1, which has been prepared by the method of claim 2: [Chemical Formula 1] MoaBibFecXdYeO f (1) wherein X is at least one element selected from the group consisting of Co and Ni; Y is at least one element selected from the group consisting of K, Cs and Rb; each of a, b, c, d, e and f represents the atomic mole ratio of each metal, and when a is 12, b is 0.5˜2, c is 0.5˜2, d is 3˜8, and e is 0.005˜0.2, and f is determined according to oxidation state of each metal.
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이 특허에 인용된 특허 (8)
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Borgmeier,Frieder; Tenten,Andreas; Hibst,Hartmut, Catalyst comprising a support body and a catalytically active oxide material applied to the surface of the substrate.
Kawajiri Tatsuya (Himeji JPX) Onodera Hideo (Himeji JPX) Uchida Shinichi (Himeji JPX) Aoki Yukio (Taishi JPX) Wada Masahiro (Nishinomiya JPX), Catalyst for oxidation of olefin or tertiary alcohol and process for production thereof.
Martan Hans (Frankenthal DEX) Mross Wolf D. (Frankenthal DEX) Engert Gerd-Juergen (Ludwigshafen DEX), Catalyst for the oxidation and ammonoxidation of ab
상세보기
Kang,Jung Hwa; Lee,Won Ho; Kil,Min Ho; Shin,Hyun Jong; Choi,Byung Yul; Yoo,Yeon Shick; Choe,Young Hyun; Park,Ju Yeon, Method for preparing a catalyst for partial oxidation of propylene.
Nagai Koichi (Niihama JPX) Nomura Yoshisaburou (Ehime-ken JPX) Nagaoka Yoshihiko (Niihama JPX), Process for production of unsaturated aldehyde and unsaturated carboxylic acid.
Sokolovskii, Valery; Lowe, David Michael; Machiraju, Deepti; Hou, Hongyi C.; Mestl, Gerhard; Lugmair, Claus G.; Miller, Aaron B.; Volpe, Jr., Anthony F., Method for producing a catalyst for the partial oxidation/ammoxidation of olefins.
Miura, Naoki; Shiraishi, Eiichi; Nagai, Koichi, Method for producing catalyst for use in production of unsaturated aldehyde and/or unsaturated carboxylic acid, and method for producing unsaturated aldehyde and/or unsaturated carboxylic acid.
Miura, Naoki; Shiraishi, Eiichi; Nagai, Koichi, Method for producing catalyst for use in production of unsaturated aldehyde and/or unsaturated carboxylic acid, and method for producing unsaturated aldehyde and/or unsaturated carboxylic acid.
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