IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0989892
(2009-04-21)
|
등록번호 |
US-8378152
(2013-02-19)
|
우선권정보 |
JP-2008-119026 (2008-04-30); JP-2008-155666 (2008-06-13) |
국제출원번호 |
PCT/JP2009/057888
(2009-04-21)
|
§371/§102 date |
20101027
(20101027)
|
국제공개번호 |
WO2009/133787
(2009-11-05)
|
발명자
/ 주소 |
- Kouno, Hiroshi
- Ozawa, Shuji
- Yoshimura, Naritoshi
|
출원인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
4 |
초록
▼
Propylene glycol is produced by a method of producing propylene glycol, the method including: obtaining propylene glycol by performing catalytic hydrogenation of glycerol in the presence of a catalyst, the catalyst containing zinc oxide and at least one of copper and copper oxide, and the catalyst,
Propylene glycol is produced by a method of producing propylene glycol, the method including: obtaining propylene glycol by performing catalytic hydrogenation of glycerol in the presence of a catalyst, the catalyst containing zinc oxide and at least one of copper and copper oxide, and the catalyst, after being reduced at 180° C. to 230° C. in the presence of hydrogen, showing a half width of from 0.4 to 1.1 of a peak having a peak top at a position at which a diffraction angle (2θ±0.2°) is 43.1° in an X-ray diffraction pattern obtained using CuKα as a radiation source.
대표청구항
▼
1. A method of producing propylene glycol, the method comprising: obtaining propylene glycol by performing catalytic hydrogenation of glycerol in the presence of a catalyst,the catalyst comprising a first component containing at least one of copper and copper oxide and a second component containing
1. A method of producing propylene glycol, the method comprising: obtaining propylene glycol by performing catalytic hydrogenation of glycerol in the presence of a catalyst,the catalyst comprising a first component containing at least one of copper and copper oxide and a second component containing zinc oxide, andthe catalyst, after being reduced at 180° C. to 230° C. in the presence of hydrogen, showing a half width of from 0.4 to 1.1 of a peak having a peak top at a position at which a diffraction angle (2θ±0.2°) is 43.1° in an X-ray diffraction pattern obtained using CuKα as a radiation source,wherein the catalyst has been subjected to a calcination treatment at a calcination temperature of from 400° C. to 500° C. for a calcination time of from 2.5 hours to 6 hours. 2. The method of producing propylene glycol according to claim 1, wherein a weight ratio of the first component to the second component ((total weight of copper and copper oxide)/(weight of zinc oxide)) in the catalyst is in a range of from 30/70 to 70/30. 3. The method of producing propylene glycol according to claim 2, wherein a weight ratio of the first component to the second component ((total weight of copper and copper oxide)/(weight of zinc oxide)) in the catalyst is in a range of from 40/60 to 60/40. 4. The method of producing propylene glycol according to claim 1, the catalyst further comprising a third component other than copper, copper oxide and zinc oxide. 5. The method of producing propylene glycol according to claim 2, the catalyst further comprising a third component other than copper, copper oxide and zinc oxide. 6. The method of producing propylene glycol according to claim 3, the catalyst further comprising a third component other than copper, copper oxide and zinc oxide. 7. The method of producing propylene glycol according to claim 4, wherein a content of the third component in the catalyst is 25% by weight or less. 8. The method of producing propylene glycol according to claim 5, wherein a content of the third component in the catalyst is 25% by weight or less. 9. The method of producing propylene glycol according to claim 6, wherein a content of the third component in the catalyst is 25% by weight or less. 10. The method of producing propylene glycol according to claim 4, wherein the third component is at least one selected from silica, iron oxide or magnesium oxide. 11. The method of producing propylene glycol according to claim 5, wherein the third component is at least one selected from silica, iron oxide or magnesium oxide. 12. The method of producing propylene glycol according to claim 6, wherein the third component is at least one selected from silica, iron oxide or magnesium oxide. 13. The method of producing propylene glycol according to claim 7, wherein the third component is at least one selected from silica, iron oxide or magnesium oxide. 14. The method of producing propylene glycol according to claim 8, wherein the third component is at least one selected from silica, iron oxide or magnesium oxide. 15. The method of producing propylene glycol according to claim 9, wherein the third component is at least one selected from silica, iron oxide or magnesium oxide. 16. The method of producing propylene glycol according to claim 1, wherein the catalytic hydrogenation of glycerol is carried out at a reaction pressure of from 2 to 30 MPa and a reaction temperature of from 150 to 250° C. 17. The method of producing propylene glycol according to claim 16, wherein the catalytic hydrogenation of glycerol is carried out at a reaction pressure of from 2 to 30 MPa and a reaction temperature of from 180 to 220° C.
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