[특허]High shear system and method for the production of acids

High shear system and method for the production of acids 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C07D-307/89 B01F-007/00 B01F-013/10 C07C-051/265
출원번호	US-0855402 (2010-08-12)
등록번호	US-9205388 (2015-12-08)
발명자 / 주소	Hassan, Abbas Hassan, Aziz Anthony, Rayford G. Borsinger, Gregory G.
출원인 / 주소	H R D Corporation
대리인 / 주소	Westby, Timothy S.
인용정보	피인용 횟수 : 0 인용 특허 : 22

초록 ▼

Herein disclosed is a method, comprising: forming a dispersion under high shear comprising gas bubbles of an oxidant dispersed in a liquid phase, wherein the bubbles have a mean diameter of less than 1.5 micron; and contacting the dispersion with an oxidation catalyst to produce a product stream, wherein the product stream comprises a substance selected from the group consisting of dicarboxylic acid, benzoic acid, 2-methylbenzoic acid, 3-methylbenzoic acid, 4-methylbenzoic acid, and phthalic anhydride. In some cases, forming the dispersion under high shear comprises introducing the oxidant and the liquid phase into a high shear device comprising at least one rotor and at least one complementarily-shaped stator. Herein also disclosed is a system for producing a substance selected from the group consisting of dicarboxylic acid, benzoic acid, 2-methylbenzoic acid, 3-methylbenzoic acid, 4-methylbenzoic acid, and phthalic anhydride.

대표청구항 ▼

1. A method comprising: forming, under high shear, a dispersion comprising gas bubbles of an oxidant consisting essentially of oxygen dispersed in a liquid phase comprising at least one component selected from the group consisting of o-xylene and naphthalene, wherein said gas bubbles have a mean diameter of less than 1.5 micron, and wherein the high shear is provided by a high shear device comprising a catalytic surface comprising an oxidation catalyst;contacting said dispersion with the oxidation catalyst to produce a product stream, wherein said product stream comprises phthalic anhydride, wherein the phthalic anhydride in the product stream is substantially pure, and further downstream purification is not utilized. 2. The method of claim 1 wherein the high shear device comprises at least one rotor and at least one complementarily-shaped stator. 3. The method of claim 1 wherein forming the dispersion and contacting the dispersion with the oxidation catalyst take place substantially simultaneously. 4. The method of claim 3 further comprising introducing oxidation catalyst into the high shear device in which the dispersion is formed. 5. The method of claim 1 wherein forming the dispersion under high shear comprises introducing a mixture of the oxidant and the liquid phase into the high shear device. 6. The method of claim 1 wherein the oxidation catalyst contains one or more component(s) selected from the group consisting of antimony, cesium, silver, phosphorus, calcium, and niobium. 7. A method for high shear processing, the method comprising: introducing an oxidant consisting essentially of oxygen and a liquid comprising at least one component selected from the group consisting of o-xylene and naphthalene into a high shear device comprising at least one generator comprising a rotor and a complementarily-shaped stator and a catalytic surface comprising an oxidation catalyst, whereby the oxidant and liquid are subjected to high shear conditions to form a dispersion comprising oxidant bubbles dispersed in the liquid; andextracting, from the high shear device, a product stream that comprises substantially pure phthalic anhydride.

이 특허에 인용된 특허 (22)

Weise Mark K. (North Haledon NJ) Kingsley Jeffery P. (Newburgh NY) Litz Lawrence M. (Pleasantville NY), Broad liquid level gas-liquid mixing operations.
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Danz Eckehard (Ludwigshafen DEX) Dmbgen Gerd (Dannstadt-Schauernheim DEX) Miesen Ernest (Ludwigshafen DEX) Schmidt Johannes E. (Ludwigshafen DEX) Wirth Friedrich (Ludwigshafen DEX), Continuous isolation of phthalic anhydride and maleic anhydride from reaction gases.
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Langer, Deborah A.; Westfall, David L.; Skoch, William E.; Mullay, John J., Continuous process for making an aqueous hydrocarbon fuel.
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Litz Lawrence M. (Pleasantville NY) Weise Mark K. (North Haledon NJ) Adis Mitchell (North White Plains NY), Gas-liquid mixing.
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Bosch Edward T. ; Langhorn Kenneth D. ; Cohen Douglas M., High shear rotors and stators for mixers and emulsifiers.
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Lindahl Harold A. (Riverside IL) Abrams Kenneth J. (Naperville IL) Stark Leonard E. (Naperville IL) Zeitlin Martin A. (Naperville IL), Method and apparatus for controlling the manufacture of terephthalic acid to control the level and variability of the co.
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Rossi Pietro P. (Garlasco ITX) Senni Paolo (Colleferro ITX) Ferruzzi Sergio (Trieste ITX), Method of preparing pure benzoic acid.
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Holl Richard A. (2183 Eastridge Trail Oxnard CA 93030), Methods and apparatus for high-shear material treatment.
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Stelzer, C Ekkehard; Wittek, Axel, Mixing method and apparatus.
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Deborah A. Langer ; David L. Westfall ; Morris E. Smith ; Robert T. Graf ; Harshida Dave ; John J. Mullay ; Daniel T. Daly ; Elizabeth A. Schiferl, Process and apparatus for making aqueous hydrocarbon fuel compositions, and aqueous hydrocarbon fuel composition.
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Deborah A. Langer ; David L. Westfall ; Morris E. Smith ; Robert T. Graf ; Harshida Dave ; John J. Mullay ; Daniel T. Daly ; Elizabeth A. Schiferl ; Brian B. Filippini ; William D. Abraham, Process and apparatus for making aqueous hydrocarbon fuel compositions, and aqueous hydrocarbon fuel composition.
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Deborah A. Langer ; David L. Westfall ; Morris E. Smith ; Robert T. Graf ; Harshida Dave ; John J. Mullay ; Daniel T. Daly ; Elizabeth A. Schiferl ; Brian B. Filippini ; William D. Abraham , Process and apparatus for making aqueous hydrocarbon fuel compositions, and aqueous hydrocarbon fuel compositions.
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Varela Fuentes,Fernando; Bulbarela Croda,Arturo; Ramirez Aguilar,Guillermo; Moran Delgado,Bertha, Process and apparatus for the efficient oxidation of alkyl aromatic compounds.
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Holl, Richard A., Process for high shear gas-liquid reactions.
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Tamaru Akio (Kitakyushu JPX) Izumisawa Yoshiaki (Kitakyushu JPX), Process for preparing terephthalic acid of high quality.
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Langer Reinhard,DEX ; Buysch Hans-Josef,DEX ; Pentling Ursula,DEX ; Wagner Paul,DEX, Process for the production of aromatic amines.
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Scott Leon S. (Wilmington DE) Sommers Roy W. (Pennsville NJ), Process for the production of fiber-grade terephthalic acid.
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Sauer Heinz (Odenthal DEX) Dallmeyer Hermann (Odenthal DEX) Zarnack Uwe J. (Brunsbuettel DEX) Keggenhoff Berthold (Krefeld DEX) Weber Bernd (Krefeld DEX), Process for the production of isocyanates.
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Turner John Arthur,GBX ; Royall David John,GBX ; Hugall Duncan Stuart,GBX ; Jones Graham Howard,GBX ; Woodcock Duncan Charles,GBX, Production of terephthalic acid.
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Kingsley Jeffrey P. (Newburgh NY) Roby Anne K. (Peekskill NY) Litz Lawrence M. (Pleasantville NY), Terephthalic acid production.
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Fisher Jay A. (Naperville IL), Terephthalic acid recovery by continuous flash crystallization.
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Kingsley Jeffrey P. (Newburgh NY), Variable liquid level eductor/impeller gas-liquid mixing apparatus and process.
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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
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High shear system and method for the production of acids 원문보기

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High shear system and method for the production of acids 원문보기

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