摘要:
This invention relates to porous microcomposites comprising fluorinated sulfonic acid and a network of silica, wherein the fluorinated sulfonic acid is selected from the group consisting of 1,1,2,2-tetrafluoroethanesulfonic acid, 1,1,2-trifluoro-2-(perfluoroethoxy)ethanesulfonic acid, 1,1,2-trifluoro-2-(trifluoromethoxy)ethanesulfonic acid, 1,1,2-trifluoro-2-(perfluoropropoxy)ethanesulfonic acid; 1,1,2,3,3,3-hexafluoropropanesulfonic acid; and 2-chloro-1,1,2-trifluoroethanesulfonic acid. The porous microcomposites are useful as catalysts.
摘要:
A process for manufacture of hydrofluoroalkanesulfonic acid with at least one hydrogen bonded to the carbon atom adjacent to the carbon atom bonded to the sulfonic acid group comprising: contacting a fluoroolefin with sulfite in an aqueous solution adjusted to about pH 4 to pH 12; removing water from the solution to form a solid; directly treating the solid with oleum; and distilling the hydrofluoroalkanesulfonic acid therefrom. Also a process for manufacture of potassium hydrofluoroalkanesulfonate in high purity is described.
摘要:
Hydrofluoroalkanesulfonates of the general formula R—O—CXH—CX2—SO3M, where R is selected from the group consisting of alkyl groups, functionalized alkyl groups, and alkenyl groups; X is selected from the group consisting of hydrogen and fluorine with the proviso that at least one X is fluorine; and M is a cation, are made by reacting fluorovinyl ether with aqueous sulfite solution. Organic onium hydrofluoroalkanesulfonates are useful as ionic liquids and photoacid generators.
摘要:
This invention relates to a process for isomerizing olefins using a porous microcomposite comprising at least one fluorinated sulfonic acid on silica as the catalyst.
摘要:
The present invention relates to the synthesis of alkylated aromatic compounds using ionic liquids as the solvent. Alkylated aromatic compounds are synthesized by reacting an aromatic compound with a monoolefin in the presence of an acid catalyst.
摘要:
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.
摘要:
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.
摘要:
This invention provides a method for preserving wood by treating the wood with a composition comprising a dispersion of colloidal silica or colloidal alumina particles in a solvent and one or more organic biocides.
摘要:
This invention relates to the field of nanotechnology. Specifically the invention describes a method for cutting a multiplicity of nano-structures to uniform dimensions of length, length and width, or area, or to a specific distribution of lengths or area using various cutting techniques.