发明名称 |
Synthesis of Guerbet Alcohols |
摘要 |
A method and system for preparing a mixture of Guerbet alcohols where one or more primary alcohols of the formula RCH2CH2OH are provided, with R representing hydrogen or a straight or branched chain alkyl group of 1 to 14 carbon atoms. A base and a catalyst are provided, which are mixed with the primary alcohol(s). The resulting mixture is heated to a process temperature above the boiling point of water under reaction conditions and the water resulting from the thus obtained condensation and dehydration of the primary alcohols is then removed constantly. When the Guerbet reaction has reached a certain stage, at least part of the reaction mixture is removed, followed by a separation of the desired Guerbet alcohols from the removed part of the reaction mixture. The other alcohols are then returned to the reaction mixture for obtaining a higher amount of the desired Guerbet alcohols. |
申请公布号 |
US2015246863(A1) |
申请公布日期 |
2015.09.03 |
申请号 |
US201514627727 |
申请日期 |
2015.02.20 |
申请人 |
Arkema France ;OBR Spólka Akcyjna |
发明人 |
Dubois Jean-Luc;Zhao Wei;Roelant Raf Edward Anna;Keuken Hans;Borges Pedro Miguel Ramos |
分类号 |
C07C29/34;C07C1/24;B01J8/08;B01J8/18;B01J8/24;B01J8/02;C10L1/182;C07C2/06 |
主分类号 |
C07C29/34 |
代理机构 |
|
代理人 |
|
主权项 |
1. A method for preparing a mixture of Guerbet alcohols, the method comprising:
providing a starting material comprising one or more primary alcohols of the formula RCH2CH2OH, where R is hydrogen or a straight or branched chain alkyl group of 1 to 14 carbon atoms; providing a base; providing a catalyst; mixing the starting material with the base and the catalyst and heating the thus obtained reaction mixture to a process temperature above the boiling point of water under reaction conditions while removing the water resulting from the thus obtained condensation and dehydration of the primary alcohols; removing at least part of the reaction mixture; separating the desired Guerbet alcohols from the removed part of the reaction mixture; and returning the other alcohols and optionally other intermediates from the removed part of the reaction mixture to the reaction mixture. |
地址 |
Colombes FR |