[특허]Process for the purification and separation of perhaloalkanoic acids from mixtures thereof with perhaloalkanes

Process for the purification and separation of perhaloalkanoic acids from mixtures thereof with perhaloalkanes 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C07C-005/42 C07C-053/34
출원번호	US-0548818 (1975-02-10)
우선권정보	DT-2407834 (1974-02-19)
발명자 / 주소	Rudolph Werner (Anderten Hannover DT) Massonne Joachim (Hannover DT)
출원인 / 주소	Kali-Chemie Aktiengesellschaft (Hannover DT 03)
인용정보	피인용 횟수 : 15 인용 특허 : 0

초록 ▼

Processes for the separation and purification of a perhaloalkanoic acid or mixture of perhaloalkanoic acids having the formula A－(CFX－CFY)n－CFX－COOH in which A is a perfluoromethyl, perfluoroethyl, perfluoropropyl or perfluoroisopropyl radical, X is a fluoro or a trifluoromethyl radical, Y is a fluoro or chloro radical, and n is an integer from 1 to 4, from a mixture containing the said acid or mixture of acids and a perhaloalkane or mixture of perhaloalkanes having the formula A－(CFX－CFY)n－CFX－CFYZ in which formula A, X, Y and n have the same significance as in the previous formula and Z is an iodo, chloro or bromo radical, which comprises adsorbing the said mixture in the form of a liquid upon a chromatographic column of adsorbent silica gel particles and subsequently eluting the perhaloalkane or perhaloalkanes therefrom with a weakly polar eluent and subsequently eluting the perfluoroalkanoic acid or acids therefrom with a strongly polar eluent.

대표청구항 ▼

A process for the separation and purification of a perhaloalkanoic acid or mixture of perhaloalkanoic acids having the formula A－(CFX－CFY)n－CFX－COOH in which A is a perfluoromethyl, perfluoroethyl, perfluoropropyl or perfluoroisopropyl radical, X is a fluoro or a trifluoromethyl radical, Y is a fluoro or chloro radical and n is an integer from 1 to 4, from a mixture containing the said acid or mixture of acids and a perhaloalkane or mixture of perhaloalkanes having the formula A－(CFX－CFY)n－CFX－CFYZ in which formula A, X, Y and n have the same significance as hereinbefore, and Z is an iodo, chloro or bromo radical, which comprises adsorbing the said mixture in the form of a liquid upon a chromatographic column of adsorbent silica gel particles and subsequently eluting the perhaloalkane or perhaloalkanes therefrom first with a weakly polar eluent selected from the group consisting of chlorofluoroalkanes, tetrachloromethane, chloroform, benzene and petroleum ether, and then with a strongly polar eluent selected fRom the group consisting of ethyl acetate, diethyl ether, acetone and methanol.

이 특허를 인용한 특허 (15)

Hintzer, Klaus; Jürgens, Michael; Kaspar, Harald; Lochhaas, Kai H.; Maurer, Andreas R.; Schwertfeger, Werner; Zipplies, Tilman C., Aqueous emulsion polymerization process for producing fluoropolymers.
상세보기
Nimitz Jonathan S., Blend compositions of trifluoroiodomethane, tetrafluoroethane and difluoroethane.
상세보기
Nimitz Jonathan S. (Albuquerque NM) Lankford Lance H. (Newcastle CA), Fluoroiodocarbon blends as CFC and halon replacements.
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Nimitz Jonathan Shelley (Albuquerque NM) Lankford Lance Harrell (Newcastle CA), Fluoroiodocarbon blends as CFC and halon replacements.
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Nimitz Jonathan Shelley ; Lankford Lance Harrell, Fluoroiodocarbon blends as CFC and halon replacements.
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Dadalas, Michael C.; Hintzer, Klaus; Mayer, Ludwig; Zipplies, Tilman C.; McDonell, James A., Fluoropolymer coated articles.
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Führer, Stephan; Hintzer, Klaus; Löhr, Gernot; Obermaier, Egon; Schwertfeger, Werner, Method of recovering fluorinated acid surfactants from adsorbent particles loaded therewith.
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Hintzer, Klaus; Jürgens, Michael; Kaspar, Harald; Koenigsmann, Herbert; Löchhaas, Kai Helmut; Maurer, Andreas R.; Schwertfeger, Werner; Zipplies, Tilman; Moore, George G. I.; Schulz, Jay F.; Flynn, Richard M., Method of removing fluorinated carboxylic acid from aqueous liquid.
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Cope Charles S. (Parkersburg WV), Process for recovery of fluorosurfactants.
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Nishimura Toshihiro (Kawasaki JPX) Nakayama Muneo (Tokyo JPX) Hashimoto Akira (Yokohama JPX), Process for regenerating waste oils of synthetic lubricants containing fluorine atom.
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Dadalas, Michael C.; Hintzer, Klaus; Mayer, Ludwig; Zipplies, Tilman C.; McDonell, James Arthur, Process for removing fluorinated emulsifier from fluoropolymer dispersions using an anion-exchange resin and a pH-dependent surfactant and fluoropolymer dispersions containing a pH-dependent surfactant.
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Stephan Fuhrer DE; Gernot Lohr DE; Werner Schwertfeger DE, Process for the elution of fluorinated emulsifiers.
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Kuhls Jrgen (Burghausen DEX), Recovery of fluorinated emulsifying acids from basic anion exchangers.
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Maurer, Andreas; Hintzer, Klaus; Schwertfeger, Werner; Obermaier, Egon; Weber, Astrid, Recovery of fluorinated surfactants from a basic anion exchange resin having quaternary ammonium groups.
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Hintzer,Klaus; Obermaier,Egon; Schwertfeger,Werner, Removal of fluorinated surfactants from waste water.
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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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연합인증

Process for the purification and separation of perhaloalkanoic acids from mixtures thereof with perhaloalkanes 원문보기

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Process for the purification and separation of perhaloalkanoic acids from mixtures thereof with perhaloalkanes 원문보기

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연구과제 타임라인

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이 특허를 인용한 특허 (15)

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