[특허]Bromination process

Bromination process 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C07C-025/18 C07C-025/00 C07C-022/04 C07C-022/00
출원번호	US-0550287 (2006-10-17)
등록번호	US-7358407 (2008-04-15)
발명자 / 주소	Parks,John C. Knoebel,David H. Jenkins,Lawrence M. Ransford,George H. Bowman, Jr.,Gary L. Hussain,Saadat
출원인 / 주소	Albemarle Corporation
인용정보	피인용 횟수 : 0 인용 특허 : 66

초록 ▼

This invention relates to a novel process which comprises feeding a mixture formed from diphenylethane and bromine to a stirrable reaction mass comprised of bromine and a bromination catalyst to yield a decabromodiphenylethane wet cake which can be most economically treated to provide a high quality

대표청구항 ▼

That which is claimed is: 1. A process for bromination of diphenylethane, which process comprises: a) forming a mixture of at least bromine and molten diphenylethane; and b) feeding said mixture into a stirrable reaction mass comprising bromine and a bromination catalyst to form a decabromodiphenylethane product; wherein said catalyst is present in an amount within the range of from about 0.1 to about 20 weight percent, based on the weight of said diphenylethane, and wherein at least a portion of the bromine in a) is from a bromine recycle stream. 2. A process as in claim 1 wherein said amount of catalyst is within the range of from about 2 to about 15 weight percent based on the weight of said diphenylethane. 3. A process as in claim 1 wherein said catalyst used is selected from AlCl3, AlBr3 and a mixture thereof. 4. A process as in claim 1 wherein said catalyst is AlCl3, AlBr3 or a mixture thereof in combination with aluminum powder, iron powder, FeCl3 or FeBr3. 5. A process as in claim 1 wherein said mixture is fed below the surface of said reaction mass. 6. A process for the manufacture of a decabromodiphenylethane product, which process comprises: a) generating a mixture from at least bromine and molten diphenylethane in a molar ratio of bromine to molten diphenylethane of at least about 5:1; and b) feeding said mixture into a stirrable reaction mass comprising bromine and a bromination catalyst, wherein at least a portion of the bromine in a) is from a bromine recycle stream. 7. A process as in claim 6 wherein said molar ratio is within the range of from about 5:1 to about 30:1. 8. A process as in claim 7 wherein the molar ratio is within the range of from about 7.5:1 to about 25:1. 9. A process as in claim 7 wherein the reaction mass temperature is within the range of from about 30 to about 80�� C. 10. A process as in claim 7 wherein the mixture is fed to the reaction mass within about 2 seconds after the mixture is formed. 11. A process as in claim 10 wherein there is a catalytic amount of bromination catalyst present in the reaction mass and such catalyst is selected from AlCl3, AlBr3 and a mixture thereof. 12. A process as in claim 10 wherein there is an initial amount of bromine in the reaction mass before the mixture feed begins, which initial amount is within the range of from about 25 to about 150% of the stoichiometric amount needed to produce a decabromodiphenylethane product from the diphenylethane fed. 13. A process as in claim 7 wherein there is a catalytic amount of bromination catalyst present in the reaction mass and such catalyst is selected from AlCl3, AlBr3 and a mixture thereof. 14. A process as in claim 7 wherein there is an initial amount of bromine in the reaction mass before the mixture feed begins, which initial amount of bromine is within the range of from about 25 to about 150% of the stoichiometric amount needed to produce a decabromodiphenylethane product from the diphenylethane to be fed. 15. A process as in claim 6 wherein the molar ratio is within the range of from about 10:1 to about 15:1; the mixture is fed to the reaction mass within about 0.001 to about 0.05 second of its being formed; there is a catalytic amount of a bromination catalyst present in the reaction mass and such catalyst is selected from AlCl3, AlBr3 and a mixture thereof; and there is an initial amount of bromine in the reaction mass before the mixture feed begins, which initial amount of bromine is within the range of from about 75 to about 100% of the stoichiometric amount needed to produce a decabromodiphenylethane product from the diphenylethane to be fed. 16. A process as in claim 7 wherein the mixture is fed to the reaction mass within about 2 seconds of its being formed, wherein there is a catalytic amount of bromination catalyst present in the reaction mass and such catalyst is selected from AlCl3, AlBr3 and a mixture thereof, wherein there is an initial amount of bromine in the reaction mass before the mixture feed begins, which initial amount of bromine is within the range of from about 25 to about 150% of the stoichiometric amount needed to produce a decabromodiphenylethane product from the diphenylethane to be fed, wherein in a) the molten diphenylethane is at a temperature in the range of from about 55�� C. to about 80�� C., wherein the molten diphenylethane is blanketed by a non-oxidizing atmosphere at least until it is fed into said reaction mass, and wherein the bromine in a) is at a temperature within the range of from about 30�� C. to about 75�� C. 17. A process as in claim 7 wherein in a) the molten diphenylethane is at a temperature in the range of from about 55�� C. to about 80�� C. 18. A process as in claim 7 wherein the bromine in a) is at a temperature within the range of from about 30�� C. to about 75�� C. 19. A process as in claim 6 wherein the molten diphenylethane is blanketed by a non-oxidizing atmosphere at least until it is fed into said reaction mass. 20. A process as in claim 6 wherein said process is conducted with a reaction mass volume larger than about 1000 liters.

이 특허에 인용된 특허 (66)

Blumberg Morris (Irvington NY) Swasey Chester C. (Demarest NJ), Additive blends for polymeric materials.
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Parks, John C.; Knoebel, David H.; Jenkins, Lawrence M.; Ransford, George H.; Bowman, Jr., Gary L.; Hussain, Saadat, Bromination process.
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Parks, John C.; Knoebel, David H.; Jenkins, Lawrence M.; Ransford, George H.; Bowman, Jr., Gary L.; Hussain, Saadat, Bromination process.
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Parks, John C.; Knoebel, David H.; Jenkins, Lawrence M.; Ransford, George H.; Bowman, Jr., Gary L.; Hussain, Saadat, Bromination process.
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Parks, John C.; Knoebel, David H.; Jenkins, Lawrence M.; Ransford, George H.; Bowman, Jr., Gary L.; Hussain, Saadat, Bromination process.
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Parks, John C.; Knoebel, David H.; Jenkins, Lawrence M.; Ransford, George H.; Bowman, Jr., Gary L.; Hussain, Saadat, Bromination process.
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Parks,John C.; Knoebel,David H.; Jenkins,Lawrence M.; Ransford,George H.; Bowman, Jr.,Gary L.; Hussain,Saadat, Bromination process.
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Parks,John C.; Knoebel,David H.; Jenkins,Lawrence M.; Ransford,George H.; Bowman, Jr.,Gary L.; Hussain,Saadat, Bromination process.
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Kress Hans-Jrgen (Krefeld DEX) Mller Friedemann (Neuss DEX) Lindner Christian (Cologne DEX) Peters Horst (Leverkusen DEX) Buekers Josef (Krefeld DEX), Flame-retarding, polycarbonate moulding materials of high impact strength.
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Neukirchen Ernst (Cologne DEX) Kerscher Utto (Lechenich DEX), Flameproofing additives for thermoplastic synthetic resins.
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Bill Rudolf (Allschwil CHX) Wolf Rainer (Allschwil CHX), Flameproofing composition for polypropylene comprising a halogenated alkylaryl ether, an organo-tin compound and a steri.
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Merkl George G. (46 Sunset Court Haworth NJ 07641), Metalic-organo-peroxide and organo-metalic-peroxide and preparation thereof.
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Garman John A. (West Lafayette IN) Mamuzic Rastko I. (West Lafayette IN) McDonald Robert B. (West Lafayette IN) Sands John L. (West Lafayette IN) Thompson Gregory (Battleground IN), Perbromination of phenol and diphenyl ether at elevated temperature using bromine as the reaction medium.
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Anderson Arnold L. (Alma MI) Nulph Robert J. (Alma MI), Plastic compositions containing acrylonitrile-butadiene-styrene polymer and a bis-phenoxy flame retardant.
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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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Bromination process 원문보기

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