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    • 6. 发明申请
    • PROCESS FOR THE DESTILLATIVE PURIFICATION OF FLUOROETHYLENE CARBONATE
    • 氟代乙烯碳酸酯的目的化学纯化方法
    • WO2011020830A1
    • 2011-02-24
    • PCT/EP2010/061973
    • 2010-08-17
    • SOLVAY FLUOR GMBHLAMBERT, AlainSOMMER, ChristophKRUEGER, HaraldOLSCHIMKE, Jens
    • LAMBERT, AlainSOMMER, ChristophKRUEGER, HaraldOLSCHIMKE, Jens
    • C07D317/42
    • C07D317/42
    • Process for the destillative purification of fluoroethylene carbonate Crude fluoroethylene carbonate obtained by the fluorination of ethylene carbonate and elemental fluorine containing not more than 5 % by weight of HF is purified by at least two subsequent distillation steps. The bulk of HF can be removed, if desired,in a preliminary HF removal step, e.g. by stripping,before performing the distillation. Further,if desired, a second HF removal step can be performed by contacting the crude mixture or the distillate obtained after the first distillation step with an adsorbent for HF, e.g. silica gel. The distillation can be performed batch wise. It is preferred to perform it continuously. It yields purified fluoroethylene carbonate with an HF content of equal to or less than 30 ppm. The purified fluoroethylene carbonate can be applied as solvent additive for lithium ion batteries.
    • 氟代碳酸亚乙酯的游离纯化方法通过氟化碳酸亚乙酯和含有不超过5重量%HF的元素氟获得的粗氟代碳酸亚乙酯通过至少两个随后的蒸馏步骤纯化。 如果需要,可以在初步HF去除步骤中除去大部分HF。 通过汽提,然后进行蒸馏。 此外,如果需要,可以通过使在第一蒸馏步骤后获得的粗混合物或蒸馏物与HF的吸附剂接触来进行第二HF去除步骤,例如。 硅胶。 蒸馏可以分批进行。 优选连续执行。 产生HF含量等于或小于30ppm的纯化氟代碳酸亚乙酯。 纯化的碳酸亚乙酯可用作锂离子电池的溶剂添加剂。
    • 9. 发明申请
    • PREPARATION OF PURIFIED FLUOROSUBSTITUTED ORGANIC CARBONATES
    • 纯化氟化物有机碳酸盐的制备
    • WO2014056936A1
    • 2014-04-17
    • PCT/EP2013/070973
    • 2013-10-08
    • SOLVAY SA
    • BOMKAMP, MartinLAMBERT, Alain
    • C07D317/42
    • C07D317/42
    • A process for the preparation of purified fluorosubstituted organic carbonates, especially of fluoroethylene carbonate, difluoroethylene carbonate, fluoromethyl methyl carbonate and difluorinated dimethyl carbonate from ethylene carbonate and dimethyl carbonate and F 2 is described. After fluorination, and preferably after performing a step of hydrogen fluoride depletion, the impure fluorosubstituted organic carbonates are subjected to a treatment with an agent of formula (I), R-H, wherein R is a nucleophilic group, and a subsequent step of distillation in at least one distillation column. Alcohols and amines, for example, are suitable as agent of formula (I). Methanol is especially preferred.
    • 描述了从碳酸亚乙酯和碳酸二甲酯和F2制备纯化的氟取代的有机碳酸酯,特别是氟代亚乙基碳酸酯,二氟亚乙基碳酸酯,氟甲基甲基碳酸酯和二氟化碳酸二甲酯的方法。 在氟化后,优选在进行氟化氢消耗的步骤之后,将不纯的氟代取代的有机碳酸酯用式(I),RH(其中R是亲核基团)的试剂进行处理,随后在 至少一个蒸馏塔。 醇和胺例如适合作为式(I)的试剂。 甲醇是特别优选的。