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    Process for preparing halogenated and mixed halogenated derivatives of methane by the chlorofluorination of methane
    3.
    发明授权
    Process for preparing halogenated and mixed halogenated derivatives of methane by the chlorofluorination of methane 失效
    通过甲烷氯化氢制备甲烷的氢化和混合的甲基化衍生物的方法

    公开(公告)号：US3679767A

    公开(公告)日：1972-07-25

    申请号：US75105668

    申请日：1968-08-08

    Applicant: MONTEDISON SPA

    Inventor： VECCHIO MARTINO ,  CAMMARATA ITALO ,  FATTORE VITTORIO

    IPC: C07C17/10

    CPC classification number: C07C17/10

    Abstract: Process for preparing chlorofluoromethanes by reaction of methane, chlorine and a recycle mixture of halogenated hydrocarbons, containing prevailingly carbon tetrachloride, with mineral calcium fluoride in a fluid bed at a temperature of from 450* to 600*C and for a contact time of from 0.5 to 120 seconds.

    Abstract translation: 通过甲烷，氯和含有普遍的四氯化碳的卤代烃与矿物氟化钙的循环混合物在流化床中在450℃至600℃的温度下反应并接触0.5次的方法来制备氯氟甲烷的方法 至120秒。

    Catalyst based on aluminum fluoride for the gaseous phase fluorination of hydrocarbons
    4.
    发明授权
    Catalyst based on aluminum fluoride for the gaseous phase fluorination of hydrocarbons 失效
    基于氟化铝的催化剂用于气相气相色谱

    公开(公告)号：US3650987A

    公开(公告)日：1972-03-21

    申请号：US3650987D

    申请日：1969-07-18

    Applicant: MONTEDISON SPA

    Inventor： VECCHIO MARTINO ,  GROPPELLI GIOVANNI ,  FATTORE VITTORIO

    IPC: B01J27/06 ,  B01J27/12 ,  B01J27/125 ,  C07B61/00 ,  C07C17/00 ,  C07C17/02 ,  C07C17/04 ,  C07C17/08 ,  C07C17/20 ,  C07C17/37 ,  C07C19/12 ,  C07C67/00 ,  B01J11/78

    CPC classification number: C07C17/04 ,  B01J27/06 ,  C07C17/02 ,  C07C17/206 ,  C07C17/37 ,  Y02P20/582 ,  C07C19/08 ,  C07C19/12

    Abstract: A CATALYST IS DISCLOSED FOR THE PREPARATION OF FLUORINATED HYDROCARBONS VIA FLUORINATION OF CHLOROFLUORINATION REACTIONS IN GASEOUS PHASE, THE CATALYST CONSISTING ESSENTIALLY OF ALUMINUM FLUORIDE CONTAINING MINOR, QUANTITIES OF IRON, CHROMIUM, AND PREFERABLY ALSO NICKEL COMPOUNDS, PRESENT IN QUANTITIES CORRESPONDING TO THE FOLLOWING PRECENTAGES BY WEIGHT OF THE METAL (BASED ON THE TOTAL): FROM 0.1% TO 5% OF FE, FROM 0.05% TO 8.5% AT LEAST PARTIALLY, IN THE FORM OF HALIDES, AND IN PARTICULAR FLUORIDES, OR IN THE FORM OF OXIDES OR OXY-HALIDES. THE CATALYST IS PREPARED BY ADDING IRON OR CHROMIUM COMPOUNDS, AND PREFERABLY ALSO NICKEL COMPOUNDS, IN A SUBDIVIDED FORM, TO ALUMINUM FLUORIDE OR ALUMINA, AND THEN SUBJECTING THE COMPOSITION THUS OBTAINED TO AN ACTIVATION TREATMENT BY HEATING AT A TEMPERATURE BETWEEN 300*C. AND 550*C. FOR FROM 0.5-4 HOURS IN A CURRENT OF NITROGEN OR AIR, AND THEN SUBJECTING SAID COMPOSITION TO A FLUORINATION TREATMENT BY HEATING AT 200*-500*C. IN AN HF CURRENT, SIUTABLY DILUTED WITH INERT GASES FOR THE THERMAL CONTROL OF THE REACTION, IN ORDER TO CONVERT, AT LEAST PARTIALLY, THE ALUMINA AND POSSIBLY ALSO THE OTHER METAL COMPOUNDS INTO THEIR RESPECTIVE FLUORIDE. THE CATALYST THUS OBATAINED IS IMPLOYED FOR THE FLUORINATION IN GASEOUS PHASE AT ELEVATED TEMPERATURES OF HALOGENATED ETHANES CONTAINING AT LEAST ONE CHLORINE ATOM, IN ORDER TO OBTAIN HIGH YIELDS IN FUORINATED ETHANES HAVING A HIGH DEGREE OF SYMMETRY, BY MEANS OF HF, OR FOR THE CHLOROFLUORINATION IN GASEOUS PHASE AT ELEVATED TEMPERATURES OF ETHYLENE OR PARTIALLY HALOGENATED ETHYLENES BY MEANS OF A MIXTURE OF HF+CL2, IN ORDER TO OBTAIN FLUORINATED OR CHLOROFLUORINATED ETHANES WITH A HIGH DEGREE OF SYMMETRY.

    Process for the production of iodopentafluoroethane
    9.
    发明授权
    Process for the production of iodopentafluoroethane 失效
    制备碘代四氢呋喃的方法

    公开(公告)号：US3644544A

    公开(公告)日：1972-02-22

    申请号：US77595668

    申请日：1968-11-04

    Applicant: MONTEDISON SPA

    Inventor： CAMMARATA ITALO ,  VECCHIO MARTINO

    IPC: C07C17/04 ,  C07C17/20 ,  C07C19/16 ,  C07C17/02

    CPC classification number: C07C19/16 ,  C07C17/04 ,  C07C17/206

    Abstract: A PROCESS FOR THE PRODUCTION OF IODOPENTAFLUOROETHANE (C2F5I) WHEREIN TETRAFLUOROETHYLENE (C2F4) IS REACTED WITH MOLECULAR IODINE (I2) TO YIELD DI-IODOPENTAFLUOROETHANE (C2F4I2). THE LATTER IS REACTED IN AN AUTOCLAVE WITH LEAD DIOXIDE (PBO2) AND HYDROGEN FLUORIDE (HF) AT A TEMPERATURE OF 25* TO 200*C. (PREFERABLY 80*C. TO 160*) AT A PRESSURE OF 5 TO 50 ATMOSPHERES ABSOLUTE (ATA.). PREFERABLY 25-36 ATA. THE MOLAR RATIO HF/C2F4I2 IS 2 TO 50 (PREFERABLY 10 TO 30). THE MOLAR RATION PBO2/C2F4I2 IS 0.5 TO 2 (PREFERABLY 0.5 TO 1).

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