[EN] PROCESSES FOR MAKING DIALKYL ETHERS FROM ALCOHOLS<br/>[FR] PROCÉDÉ DE PRÉPARATION DE DIALKYLÉTHERS À PARTIR D'ALCOOLS
申请人:DU PONT
公开号:WO2009032963A1
公开(公告)日:2009-03-12
Processes for preparing dialkyl ethers from C4 to C8 straight-chain alcohols using an ionic liquid.
使用离子液体从C4到C8直链醇制备二烷醚的过程。
Ionic liquids
申请人:Harmer Andrew Mark
公开号:US20070066834A1
公开(公告)日:2007-03-22
The present invention relates to compositions of matter that are useful as ionic liquids. The compositions of the invention are based on an N-substituted pyrrolidinone, said pyrrolidinone having a pendant ammonium cation that is separated from the pyrrolidone ring by a variable length alkyl spacer. The compositions comprise fluoroalkyl sulfonate anions.
This invention relates to a process for isomerizing olefins in the presence of at least one ionic liquid.
这项发明涉及在至少一种离子液体存在下异构化烯烃的过程。
Preparation of poly(tetramethylene) glycol
申请人:Harmer Andrew Mark
公开号:US20070066853A1
公开(公告)日:2007-03-22
This invention relates to a process comprising using ionic liquids for preparing poly(tetramethylene)glycol from tetrahydrofuran.
这项发明涉及使用离子液体从四氢呋喃制备聚(对甲基苯基)乙二醇的过程。
N-SUBSTITUTED PYRROLIDONIUM IONIC LIQUIDS
申请人:FOO THOMAS
公开号:US20100145073A1
公开(公告)日:2010-06-10
This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker, which compounds may be represented by the structure of the following Formula I:
wherein:
(a) Z is —(CH
2
)
n
—, wherein n is an integer from 2 to 12;
(b) R
2
, R
3
and R
4
are each independently H or a C
1
to C
6
straight-chain or branched alkyl group; and
(c) A
−
is levulinate, —[CF
3
—O—CFHCF
2
SO
3
]—, [CF
3
CF
2
OCFHCF
2
SO
3
]—, or [CF
3
CF
2
CF
2
OCFHCF
2
SO
3
]—.