Fluorinated tertiary amino ethers
    1.
    发明授权
    Fluorinated tertiary amino ethers 失效
    氟化泰坦尼治亚

    公开(公告)号:US3882178A

    公开(公告)日:1975-05-06

    申请号:US38686173

    申请日:1973-08-09

    Applicant: HOECHST AG

    CPC classification number: C25B3/08 C23C2/02

    Abstract: Tetrafluoro-ethylene can be added to monoamines having oxyethyl or oxypropyl groups in aprotic polar solvents in the presence of alkali metals. The new monoamines obtained having the radicals tetrafluoro-ethyloxy-ethyl or tetrafluoro-ethyl-oxy-propyl are electrolyzed in anhydrous hydrofluoric acid, thus forming new monoamines in which all or nearly all hydrogen atoms of the starting compounds are replaced by fluorine.

    Abstract translation: 在碱金属存在下,四氟乙烯可以加入非质子极性溶剂中具有氧乙基或氧丙基的单胺。 获得的具有四氟乙氧基 - 乙基或四氟 - 乙基 - 氧基 - 丙基基团的新单胺在无水氢氟酸中电解,从而形成新的单胺,其中起始化合物的全部或几乎全部氢原子被氟取代。

    Tertiary perfluoro-amino ethers
    2.
    发明授权
    Tertiary perfluoro-amino ethers 失效
    三全氟氨基醚

    公开(公告)号:US3891625A

    公开(公告)日:1975-06-24

    申请号:US38685673

    申请日:1973-08-09

    Applicant: HOECHST AG

    CPC classification number: C07D211/38

    Abstract: Perfluorinated linear or cyclic oligoamines having ether groups, useful as inert reaction media or as hydraulic liquids, prepared by the electrofluorination, in anhydrous HF, of the addition products formed between hexafluoropropene or tetrafluoroethylene and linear or cyclic oligoamines having nitrogen atoms substituted by oxyalkyl groups.

    Abstract translation: 具有醚基团的全氟化线型或环状低聚胺,可用作惰性反应介质或作为液压液体,通过电氟化在无水HF中制备的六氟丙烯或四氟乙烯之间形成的加成产物和具有被烷氧基取代的氮原子的直链或环状低聚胺。

    10.
    发明专利
    未知

    公开(公告)号:FI64554B

    公开(公告)日:1983-08-31

    申请号:FI810673

    申请日:1981-03-04

    Applicant: HOECHST AG

    Abstract: The invention relates to an open dissolving chamber for rock salt and to an apparatus for the production, free from vapors, of concentrated, aqueous sodium chloride crude brine by continuously dissolving rock salt in this dissolving chamber. The dissolving chamber contains a heap of rock salt with which the brine which is unsaturated in respect of salt comes into contact. The brine thereby becomes saturated with sodium chloride and then passes out of the dissolving chamber. In the present apparatus, the unsaturated brine enters at the base of the dissolving chamber. The saturated crude brine is removed from the rock salt through at least one vertical or inclined screen which largely holds back suspended rock salt particles. The liquid level of the saturated crude brine in the dissolving chamber should not reach the surface of the heap of rock salt, and the side of the screen facing the interior of the dissolving chamber should be completely covered with a mixture of saturated crude brine and rock salt.

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