[특허]Process for producing epichlorohydrin

Process for producing epichlorohydrin 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C08G-065/24 C07D-301/24 C07C-029/62 C07D-303/08 C08G-059/04 C01B-007/07 C11C-003/00
출원번호	US-0502296 (2009-07-14)
등록번호	US-9663427 (2017-05-30)
우선권정보	FR-03 13625 (2003-11-20); FR-04 03555 (2004-04-05)
발명자 / 주소	Krafft, Philippe Gilbeau, Patrick Gosselin, Benoit
출원인 / 주소	SOLVAY (Société Anonyme)
대리인 / 주소	Oblon, McClelland, Maier & Neustadt, L.L.P.
인용정보	피인용 횟수 : 0 인용 특허 : 70

초록

Process for producing epichlorohydrin comprising subjecting to a dehydrochlorination operation, dichloropropanol produced from glycerol comprising aldehydes.

대표청구항 ▼

1. A process for producing epichlorohydrin comprising subjecting dichloropropanol to a dehydrochlorination operation, wherein said dichloropropanol has been produced from glycerol that has been obtained from renewable raw materials and comprises aldehydes. 2. The process according to claim 1, wherein the glycerol has been obtained during the production of biodiesel. 3. The process according to claim 1, wherein the glycerol is a crude product further comprising water and a metal salt. 4. The process according to claim 3 wherein the crude product comprises from 5 to 50% by weight of water and from 1 to 10% by weight of metal salt. 5. The process according to claim 4, wherein the glycerol used comprises at least 1 mg/kg by weight of aldehydes and at most 0.5% by weight of aldehydes. 6. The process according to claim 1, wherein said glycerol is obtained from renewable raw materials during conversion of fats and/or oils of plant and/or animal origin. 7. The process according to claim 6, wherein said glycerol is obtained from renewable raw materials during conversion of fats and/or oils of plant origin. 8. The process according to claim 2, according to which (a) a plant oil is subjected to a trans-esterification reaction with an alcohol other than glycerol so as to recover at least biodiesel and a crude product containing glycerol;(b) the crude product is optionally subjected to a purification operation; and(c) glycerol formed in (a) is used to produce said dichloropropanol. 9. The process according to claim 8, according to which the production of glycerol and the production of dichloropropanol are carried out on the same production site. 10. The process according to claim 8, according to which the production of glycerol and the production of dichloropropanol are carried out on different production sites. 11. The process according to claim 1, wherein dichloropropanol is obtained by subjecting glycerol to a reaction with a chlorinating agent, with the exception of a reaction carried out in the presence of acetic acid or its derivatives. 12. The process according to claim 11, wherein the chlorinating agent comprises substantially anhydrous hydrogen chloride or is an aqueous solution of hydrogen chloride with a hydrogen chloride content higher than or equal to 4% by weight. 13. The process according to claim 11, wherein the reaction is carried out in a liquid reaction medium. 14. The process according to claim 1, wherein the dehydrochlorination operation is a basic dehydrochlorination. 15. The process according to claim 14, wherein other reactants than dichloropropanol are fed into the process and wherein the other reactants are chosen from concentrated aqueous solutions of at least one base chosen from NaOH, Ca(OH)2 and caustic soda which contains NaCl. 16. The process according to claim 14, wherein at least 1.1 equivalents of dichloropropanol and at most 5 equivalents of dichloropropanol per equivalent of base are used. 17. The process according to claim 14, wherein the dehydrochlorination operation is carried out at a temperature of at least 0° C. and of at most 140° C. 18. A process for producing an epoxy resin according to which epichlorohydrin obtained by the process according to claim 1 is used as starting material. 19. The process according to claim 3, wherein the metal salt is selected from the group consisting of NaCl, KCl, sodium sulfate and potassium sulfate. 20. The process according to claim 12, wherein the chlorinating agent is an aqueous solution of hydrogen chloride with a hydrogen chloride content higher than or equal to 30% by weight.

이 특허에 인용된 특허 (70)

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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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Process for producing epichlorohydrin 원문보기

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Process for producing epichlorohydrin 원문보기

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