Abstract:
The present invention relates to a process for reacting chemical compounds comprising the step of reacting a compound of formula (IV) wherein Hal is independently selected from CI or Br, and X″ is a monovalent anion, in the presence of an inorganic acid, wherein the aqueous inorganic acid has a concentration of at least about 60%, at a temperature of about 140° C. to Cabout 250° C., to obtain a compound of formula (V) wherein Hal is as defined above.
Abstract:
The present invention relates to a process for providing a compound of formula (I): wherein R is hydrogen or R′, wherein R′ is -(C1-C4)alkyl, and Hal is a halogen, the process comprising the step of: reacting a compound of formula (II) wherein Hal is defined as above, with an alkali metal alkoxide of the formula XOR′, wherein X is an alkali metal, and R′ is defined as above.
Abstract:
The present invention relates to a process for providing a compound of formula (IV): wherein R1 and R2 are each independently C1-C4 alkyl, and Hal is independently Cl or Br, the process comprising the steps of: (i) reacting a compound of formula (II) wherein R1 and Hal is defined as above, to obtain a compound of formula (III) wherein R1 and Hal is defined as above, and (ii) reacting the compound of formula (III) to obtain the compound of formula (IV).
Abstract:
The present invention relates to an electrolyte composition with low flammability which can be used in batteries yielding high electrochemical performance. In particular, the present invention relates to an electrolyte composition comprising a) at least 3 wt.-% of the electrolyte composition of at least one compound of general structure (I) R1 and R2 are independent from each other methyl, ethyl, n-propyl or n-butyl and b) at least one anode film forming additive.
Abstract:
The present invention relates to compounds of formula (I) wherein X is N or P; —SO3— is —O—S(O)2— or —S(O)2—O—; and n and R1 to R5 are defined below, and to their use as additives for electrolyte compositions, in particular in electrolyte compositions for lithium batteries.
Abstract:
Process for the preparation of a compound with at least one monothiocarbonate group by reacting:—a compound with at least one mercaptoalcohol group and—a dialkylcarbonate, in the presence of a catalyst wherein the catalyst is a salt of a metal selected from group IIIb or IVb of the periodic system.
Abstract:
The present invention relates to the preparation of sulfur containing ammonium and phosphonium borates KA wherein K is a compound of formula (I) A is an anion of formulae (IIa) or (IIb) by bringing into contact ammonium borates with sulfur containing ammonium or phosphonium halides or sulfonates
Abstract:
The present invention relates to a process for preparing cyclohexane from methylcyclopentane (MCP) and benzene. In the context of the present invention, MCP and benzene are constituents of a hydrocarbon mixture (HM1) additionally comprising dimethylpentanes (DMP), possibly cyclohexane and possibly at least one compound (low boiler) selected from acyclic C5-C6-alkanes and cyclopentane. First of all, benzene is converted in a hydrogenation step to cyclohexane (that present in the hydrocarbon mixture (HM2)), while MCP is isomerized in the presence of a catalyst, preferably of an acidic ionic liquid, to cyclohexane. After the hydrogenation but prior to the isomerization the dimethylpentanes (DMP) are removed, with initial removal of the cyclohexane present in the hydrocarbon mixture (HM2) together with DMP. This cyclohexane already present prior to the isomerization can be separated again from DMP in a downstream rectification step and isolated and/or recycled into the process for cyclohexane preparation. Between the DMP removal and MCP isomerization—if low boilers are present in the hydrocarbon mixture (HM1)—low boilers are, optionally removed. After the isomerization, the cyclohexane is isolated, optionally with return of unisomerized MCP and optionally of low boilers. Preferably, cyclohexane and/or low boilers are present in the hydrocarbon mixture (HM1), and so a low boiler removal is preferably conducted between the DMP removal from isomerization. It is additionally preferable that the removal of the cyclohexane from DMP is additionally conducted, meaning that the cyclohexane component which arises in the benzene hydrogenation and may be present in the starting mixture (HM1) is isolated and hence recovered.