[특허]Method of making alkylene glycols

Method of making alkylene glycols 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C07C-029/10
출원번호	US-0472298 (2012-05-15)
등록번호	US-8354562 (2013-01-15)
발명자 / 주소	Hassan, Abbas Bagherzadeh, Ebrahim Anthony, Rayford G. Borsinger, Gregory Hassan, Aziz
출원인 / 주소	H R D Corporation
인용정보	피인용 횟수 : 0 인용 특허 : 132

초록 ▼

Methods and systems for preparing alkylene glycols are described herein. The methods and systems incorporate the novel use of a high shear device to promote dispersion and solubility of alkylene oxides with water. The high shear device may allow for lower reaction temperatures and pressures and may

대표청구항 ▼

1. A method of hydrating an alkylene oxide comprising: a) emulsifying an alkylene oxide gas in a water stream in a high shear device under high shear conditions to produce a dispersion comprising gas bubbles having a mean diameter of less than about 1 micron; andb) contacting the dispersion with a catalyst to hydrate the alkylene oxide gas and form an alkylene glycol. 2. The method of claim 1 wherein said high shear conditions comprise local temperatures and local pressures that are substantially higher than bulk temperature and bulk pressure in the high shear device. 3. The method of claim 1, wherein the gas bubbles have an average diameter of no more than about 400 nm. 4. The method of claim 1, wherein the alkylene oxide gas is selected from the group consisting of ethylene oxide, propylene oxide, butylene oxide, and combinations thereof. 5. The method of claim 1, wherein the water stream includes a liquid-gas stream formed by mixing a second alkylene oxide gas stream with water. 6. The method of claim 1, wherein (a) comprises subjecting said alkylene oxide gas and water to high shear mixing at a tip speed of at least about 23 m/sec. 7. The method of claim 1, wherein (a) comprises subjecting said alkylene oxide gas and water to a shear rate of greater than about 20,000 s−1. 8. The method of claim 1, wherein the catalyst is selected from the group consisting of amines, acid catalysts, organometallic compounds, alkali metal halides, quaternary ammonium halides, zeolites, and combinations thereof. 9. The method of claim 1, wherein the alkylene glycol comprises ethylene glycol. 10. A method of hydrating an alkylene oxide comprising: a) forming a dispersion of an alkylene oxide gas and a water stream in a high shear device under high shear conditions, wherein said dispersion comprises gas bubbles having a mean diameter of less than about 1 micron; andb) introducing said dispersion into a fixed-bed reactor to hydrate the alkylene oxide gas and form an alkylene glycol, wherein said fixed-bed reactor comprises a hydration catalyst. 11. The method of claim 10, wherein forming said dispersion comprises an energy expenditure of at least about 1000 W/m3. 12. The method of claim 10, wherein the hydration catalyst is selected from the group consisting of amines, acid catalysts, organometallic compounds, alkali metal halides, quaternary ammonium halides, zeolites, and combinations thereof. 13. The method of claim 10, wherein the alkylene glycol comprises ethylene glycol. 14. The method of claim 10, wherein the high shear device comprises two or more rotors and two or more stators. 15. A method of hydrating an alkylene oxide comprising: a) forming a dispersion of an alkylene oxide gas and a water stream in a high shear device comprising a generator under high shear conditions, wherein said dispersion comprises gas bubbles having a mean diameter of less than about 1 micron; andb) introducing said dispersion into a vessel; andc) introducing a catalyst slurry comprising a hydration catalyst into said vessel and allowing hydration of the alkylene oxide gas to take place and to produce an alkylene glycol. 16. The method of claim 15 further comprising mixing a hydration catalyst with the water stream. 17. The method of claim 15, wherein said high shear device comprises a rotor and a stator separated by a shear gap in the range of from about 0.02 mm to about 5 mm, wherein the shear gap is a minimum distance between said rotor and said stator. 18. The method of claim 15 comprising utilizing more than one generator. 19. The method of claim 15 further comprising utilizing at least two high shear devices. 20. The method of claim 19, wherein the shear rate provided by one of the at least two high shear devices is greater than the shear rate provided by another of the at least two high shear devices.

이 특허에 인용된 특허 (132)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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Method of making alkylene glycols 원문보기

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