IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0587337
(2009-10-06)
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등록번호 |
US-8124808
(2012-02-28)
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발명자
/ 주소 |
- King, Stephen W.
- Hoffman, William C.
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출원인 / 주소 |
- Union Carbide Chemicals & Plastics Technology LLC
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
0 인용 특허 :
70 |
초록
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A method of transalkoxylation of nucleophilic compounds in which an alkoxylated and a nucleophilic compound are combined in a suitable vessel and reacted in the presence of a heterogeneous catalyst under conditions capable of transferring at least one hydroxyalkyl group from the alkoxylated compound
A method of transalkoxylation of nucleophilic compounds in which an alkoxylated and a nucleophilic compound are combined in a suitable vessel and reacted in the presence of a heterogeneous catalyst under conditions capable of transferring at least one hydroxyalkyl group from the alkoxylated compound to the nucleophilic compound. The method is especially useful in the transalkoxylation of alkanolamines to transfer a hydroxyalkyl group from an alkanolamine having a greater number of hydroxyalkyl groups to an alkanolamine having a lesser number of hydroxyalkyl groups.
대표청구항
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1. A method of transferring a hydroxyalkyl group from an alkoxylated compound to a nucleophilic compound comprising the steps of: a) providing the alkoxylated and nucleophilic compounds, wherein the alkoxylated compound has the formula (R1)(R2)(R3)Nwherein R1 is a hydroxyalkyl group having from 2-20
1. A method of transferring a hydroxyalkyl group from an alkoxylated compound to a nucleophilic compound comprising the steps of: a) providing the alkoxylated and nucleophilic compounds, wherein the alkoxylated compound has the formula (R1)(R2)(R3)Nwherein R1 is a hydroxyalkyl group having from 2-20 carbon atoms, and each R2, and R3 group is independently selected from hydrogen, alkyl groups having from 1 to 20 carbon atoms, and hydroxyalkyl groups having from 2-20 carbon atoms, and wherein the nucleophilic compounds is selected from (R1)(R2)(R3)N, wherein R1, R2, and R3 are as defined above in all respects, an alkyleneamine, an alkylamine, water and an alcohol;b) combining the alkoxylated and nucleophilic compounds in a suitable vessel;c) reacting the alkoxylated and nucleophilic compounds in the presence of a zirconia-containing heterogeneous catalyst under conditions capable of transferring at least one hydroxyalkyl group from the alkoxylated compound to the nucleophilic compound. 2. The method of claim 1, wherein the nucleophilic compound is selected from an alkanolamine, an alkyleneamine, an alkylamine, ammonia, water, and an alcohol. 3. The method of claim 1, wherein the alkoxylated compound is an alkanolamine that has a different degree of substitution than the alkanolamine of the nucleophilic compound. 4. The method of claim 3, wherein the nucleophilic compound is an alkanolamine. 5. The method of claim 1, wherein the heterogeneous catalyst is a non-hydrogenation catalyst. 6. The method of claim 1, wherein the heterogeneous catalyst is a non-precious metal catalyst. 7. The method of claim 1, wherein the zirconia-containing catalyst has a surface area of from about 40 to 100 m2/g. 8. The method of claim 1, wherein the catalyst further comprises a metal oxide additive. 9. The method of claim 8, wherein the metal oxide is selected from oxides of the Group IA, Group IIA, Lanthanide, and Actinide series of elements in the Periodic Table of the Elements. 10. The method of claim 9, wherein the metal oxide is selected from oxides of sodium, potassium, cesium, magnesium, and calcium. 11. The method of claim 1, wherein the zirconia-containing heterogeneous catalyst further comprises an additive that comprises from 0.5 to 15% by weight of the zirconia. 12. The method of claim 1, wherein the reaction takes place in water. 13. The method of claim 1, wherein the reaction occurs in an inert atmosphere. 14. The method of claim 1, wherein the reaction takes place in a nitrogen-containing atmosphere. 15. The method of claim 14, wherein the nitrogen-containing atmosphere further comprises up to 25% by volume oxygen. 16. The method of claim 1, wherein the reaction occurs at a temperature in the range of from 200° C. to 400° C. 17. A method of transalkoxylating an alkoxylated compound comprising the steps of: a) providing a first and a second alkoxylated compound, wherein the first and second alkoxylated compounds have the formula (R1)(R2)(R3)Nwherein R1 is a hydroxyalkyl group having from 2-20 carbon atoms, and each R2, and R3 group is independently selected from hydrogen, alkyl groups having from 1 to 20 carbon atoms, and hydroxyalkyl groups having from 2-20 carbon atoms;b) combining the first and second alkoxylated compounds in a suitable reaction vessel;c) reacting the first and second alkoxylated compounds in the presence of a zirconia-containing heterogeneous catalyst under conditions capable of transferring at least one hydroxyalkyl group from one of the alkoxylated compounds to the other of the alkoxylated compounds. 18. The method of claim 17, wherein the first and second alkanol amines each have a different degree of substitution. 19. The method of claim 18, wherein the first and the second alkanolamine is selected from (i) a primary and a tertiary alkanolamine, or (ii) a secondary and tertiary alkanolamine, or (iii) a primary and a secondary alkanol amine.
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