[특허]Process for production of high-purity diaryl carbonate

[미국특허] Process for production of high-purity diaryl carbonate 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C07C-069/96
출원번호	US-0508297 (2009-07-23)
등록번호	US8044226 (2011-10-12)
우선권정보	JP-2004-004-299793(2004-10-14)
발명자 / 주소	Fukuoka, Shinsuke Miyaji, Hironori Hachiya, Hiroshi Matsuzaki, Kazuhiko
출원인 / 주소	Asahi Kasei Chemicals Corporation
대리인 / 주소	Birch, Stewart, Kolasch & Birch, LLP
인용정보	피인용 횟수 : 4 인용 특허 : 35

초록 ▼

A high-purity diphenyl carbonate, wherein the diphenyl carbonate is unsubstituted or substituted with a lower hydrocarbon, and has a halogen content of not more than 0.1 ppm, a content of an intermediate boiling point material of not more than 100 ppm, and a content of by-products having a higher boiling point than that of said diphenyl carbonate of not more than 100 ppm. A specific industrially useful process for the production of a high-purity diaryl carbonate in which a diaryl carbonate having low contents of intermediate boiling point and high boiling point impurities is produced is disclosed. As a starting material, a reaction mixture containing an alkyl aryl carbonate obtained through a transesterification reaction between a dialkyl carbonate and an aromatic monohydroxy compound is used. The process in which separation by distillation is carried out uses three distillation columns in a specified order.

대표청구항 ▼

We claim: 1. A high-purity diphenyl carbonate, wherein the diphenyl carbonate is unsubstituted or substituted with a lower hydrocarbon, and has a halogen content of not more than 1 ppb, a content of an intermediate boiling point material of not more than 100 ppm, and a content of by-products having a higher boiling point than that of said diphenyl carbonate of not more than 100 ppm; andwherein the high-purity diphenyl carbonate is prepared by a process that comprises taking as a starting material a reaction mixture containing an alkyl aryl carbonate that has been obtained through a transesterification reaction between a dialkyl carbonate and an aromatic monohydroxy compound, continuously feeding the starting material into a reactive distillation column comprising a continuous multi-stage distillation column in which a homogeneous catalyst is present, carrying out a transesterification reaction and distillation simultaneously in said column, continuously withdrawing a low boiling point reaction mixture containing a produced dialkyl carbonate from an upper portion of the column in a gaseous form, and continuously withdrawing a high boiling point reaction mixture containing a diaryl carbonate from a lower portion of the column in a liquid form, wherein:(a) said high boiling point reaction mixture is continuously introduced into a high boiling point material separating column A, and continuously subjected to separation by distillation into a column top component AT containing the diaryl carbonate and a column bottom component AB containing the catalyst and a high boiling point material,(b) said column top component AT is continuously introduced into a diaryl carbonate purifying column B having a side cut outlet, and continuously subjected to separation by distillation into a column top component BT, a side cut component BS and a column bottom component BB, the high-purity diaryl carbonate being continuously withdrawn as the side cut component BS, and(c) said column top component BT is continuously introduced into an intermediate boiling point material separating column C having a side cut outlet, and continuously subjected to separation by distillation into a column top component CT having said alkyl aryl carbonate as a main component thereof, a side cut component CS having as a main component thereof said intermediate boiling point material having a boiling point between that of said alkyl aryl carbonate and that of said diaryl carbonate, and a column bottom component CB having said diaryl carbonate as a main component thereof.

이 특허에 인용된 특허 (35) 인용/피인용 타임라인 분석

Woo,Boo Gon; Kwak,Ja Hun; Hong,Moo Ho; Hong,Mi Jeung, Continuous method for preparing aromatic carbonate using a heterogeneous catalyst and a reaction apparatus for the same.
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Rivetti Franco,ITX ; Paludetto Renato,ITX ; Romano Ugo,ITX, Continuous process for the preparation of phenyl methyl carbonate.
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Harrison George E. (Billericay GBX) Dennis Alan J. (Middlesbrough GBX) Sharif Mohammad (Middlesbrough GBX), Continuous production process of diarylcarbonates.
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Hallgren John E. (Scotia NY), Diaryl carbonate process.
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Urairi Masakatsu (Osaka JPX) Matsumoto Kenji (Osaka JPX), Membrane filter for liquids and filtering device using the same.
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Pressman Eric James ; Wetzel Joseph Richard, Method for preparing bisphenol A.
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Fukuoka,Shinsuke; Hachiya,Hiroshi; Matsuzaki,Kazuhiko, Method for producing an aromatic polycarbonate.
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Komiya Kyosuke,JPX ; Fukuoka Shinsuke,JPX, Method for producing an aromatic polycarbonate having improved melt stability.
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De Jonge, Johannes Petrus; Lange, Jean-Paul; Pello, Dennis Humphrey Louis, Method for the catalytic conversion of alkylene carbonate.
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Debruin, Bruce Roger, Polyester process using a pipe reactor.
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Kyosuke Komiya JP; Shinsuke Fukuoka JP, Process and polymerizer for producing aromatic polycarbonate.
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Oyevaar Martin H.,NLX ; To Bill W.,CAX ; Doherty Michael F. ; Malone Michael F., Process for continuous production of carbonate esters.
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Masahiro Tojo JP; Kazuhiro Oonishi JP, Process for continuous production of dialkyl carbonate and diol.
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Fukuoka Shinsuke (Kurashiki JPX) Tojo Masahiro (Kurashiki JPX) Kawamura Mamoru (Omiya JPX), Process for continuously producing an aromatic carbonate.
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Masahiro Tojo JP; Kazuhiro Oonishi JP, Process for continuously producing dialkyl carbonate and diol.
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Fukuoka, Shinsuke; Hachiya, Hiroshi; Matsuzaki, Kazuhiko, Process for industrial production of an aromatic carbonate.
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Buysch Hans-Josef (Krefeld DEX) Schn Norbert (Krefeld DEX) Rechner Johann (Krefeld DEX), Process for preparing aromatic carbonates.
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Komiya Kyosuke,JPX ; Fukuoka Shinsuke,JPX ; Kawamura Mamoru,JPX, Process for preparing aromatic polycarbonate.
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Tojo Masahiro,JPX ; Oonishi Kazuhiro,JPX ; Komiya Kyosuke,JPX, Process for producing aromatic carbonates.
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Komiya Kyosuke,JPX ; Fukuoka Shinsuke,JPX ; Aminaka Muneaki,JPX ; Hasegawa Kazumi,JPX, Process for producing aromatic polycarbonate.
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Fukuoka, Shinsuke; Miyaji, Hironori; Hachiya, Hiroshi; Matsuzaki, Kazuhiko, Process for production of high-purity diaryl carbonate.
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Buysch Hans-Josef (Krefeld DEX) Klausener Alexander (Stolberg DEX) Langer Reinhard (Krefeld DEX) Mais Franz-Josef (Duesseldorf DEX), Process for the continuous preparation of dialkyl carbonates.
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Wagner Paul (Duesseldorf DEX) Mais Franz-Josef (Duesseldorf DEX) Buysch Hans-Josef (Krefeld DEX) Langer Reinhard (Krefeld DEX) Klausener Alexander (Cologne DEX), Process for the continuous preparation of dialkyl carbonates.
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Schn Norbert (Krefeld DEX) Langer Reinhard (Krefeld DEX) Buysch Hans-Josef (Krefeld DEX) Wagner Paul (Dsseldorf DEX), Process for the continuous preparation of diaryl carbonates from dialkyl carbonates.
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Illuminati Gabriello (Rome ITX) Romano Ugo (Milan ITX) Tesei Renato (San Donato Milanese ITX), Process for the preparation of aromatic carbonates.
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Mark Victor (Evansville IN), Process for the preparation of aromatic carbonates.
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Mark, Victor, Process for the preparation of aromatic carbonates.
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Romano Ugo (Milan IT) Tesei Renato (San Donato Milanese IT), Process for the preparation of aromatic carbonates.
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Schn Norbert (Krefeld DEX) Buysch Hans-Josef (Krefeld DEX) Wagner Paul (Dsseldorf DEX) Langer Reinhard (Krefeld DEX), Process for the preparation of diaryl carbonates.
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Wagner Paul (Duesseldorf DEX) Schn Norbert (Krefeld DEX) Buysch Hans-Josef (Krefeld DEX), Process for the preparation of organic carbonates having at least one aromatic ester group.
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Komiya Kyosuke,JPX ; Tojo Masahiro,JPX ; Fukuoka Shinsuke,JPX, Process for the producing of aromatic carbonate.
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Mark, Victor, Process for the production of aromatic carbonates.
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Krimm Heinrich (Krefeld DEX) Buysch Hans-Josef (Krefeld DEX) Rudolph Hans (Krefeld DEX), Process for the production of aromatic carbonic acid esters.
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Buysch Hans-Josef (Krefeld DEX) Mendoza-Frohn Christine (Erkrath DEX) Rechner Johann (Krefeld DEX) Schn Norbert (Darmstadt DEX), Process for the purification of diphenyl carbonate.
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Komiya Kyosuke,JPX ; Aminaka Muneaki,JPX, System and process for producing polycondensation polymer.
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이 특허를 인용한 특허 (4) 인용/피인용 타임라인 분석

Gautam, Pankaj Singh; Hollar, Jr., William E., Method and apparatus for producing high purity phosgene.
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Gautam, Pankaj Singh; Hollar, Jr., William E., Method and apparatus for producing high purity phosgene.
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Gautam, Pankaj Singh; Hollar, Jr., William E.; Ferrer Nadal, Sergio; Anderson, John Joseph, Method for producing carbonates.
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Gautam, Pankaj Singh; Hollar, Jr., William E.; Nadal, Sergio Ferrer; Anderson, John Joseph, Method for producing carbonates.
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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

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[미국특허] Process for production of high-purity diaryl carbonate 원문보기