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    3.
    发明专利
    未知

    公开(公告)号：IT1141624B

    公开(公告)日：1986-10-01

    申请号：IT6836780

    申请日：1980-09-04

    Applicant: DEGUSSA

    Inventor： BITTNER FRIEDRICH ,  VOIGT CARL ,  KLEINSCHMIT PETER

    IPC: C01C3/02 ,  C01C

    Abstract: By introducing the reaction gas mixture of hydrocarbons and ammonia at increased velocity through an inlet tube with one or more openings in a customary reaction tube in the hydrocyanic acid-methane-ammonia (BMA) process the yield of HCN is increased considerably.

    PROCESS FOR PRODUCING CYANURCHLORIDE SUSPENSIONS IN ORGANIC SOLVENTS
    4.
    发明专利
    PROCESS FOR PRODUCING CYANURCHLORIDE SUSPENSIONS IN ORGANIC SOLVENTS 未知

    公开(公告)号：HU184074B

    公开(公告)日：1984-06-28

    申请号：HUDE001029

    申请日：1979-11-19

    Applicant: DEGUSSA

    Inventor： HENTSCHEL KLAUS ,  BITTNER FRIEDRICH ,  SCHREYER GERD

    IPC: B01D1/18 ,  B01F3/08 ,  B01F3/12 ,  B01F5/20 ,  C07D251/28

    Abstract: Suspension or solutions of cyanuric chloride in water containing organic solvents are prepared at high mixing velocities and low temperatures with resulting low degree of hydrolysis by introducing liquid cyanuric chloride through a nozzle in the upper portion of the mixing apparatus in countercurrent flow to upwardly flowing solvent introduced from at least one lower nozzle above a breast shaped constriction in the lower, open portion of the apparatus. In this way the chamber walls are always covered with an unbroken layer of liquid. The process can be carried out at normal, reduced or elevated pressure. At reduced pressure by evaporation of the solvent there is simultaneously a cooling of the system.

    6.
    发明专利
    未知

    公开(公告)号：CH625513A5

    公开(公告)日：1981-09-30

    申请号：CH1499875

    申请日：1975-11-19

    Applicant: DEGUSSA

    Inventor： BITTNER FRIEDRICH ,  SUCHSLAND HELMUT ,  SCHREYER GERD ,  SCHWARZE WERNER ,  HASCHKE HEINZ

    IPC: C07D251/28

    Abstract: There is provided a process for the production of a solution or suspension of cyanuric chloride in a water containing organic solvent wherein the liquid cyanuric chloride and the organic-aqueous solvent are mixed together while being agitated, the liquid cyanuric chloride at a temperature between its melting point and 200 DEG C. is led into the flowing organic-aqueous solvent with a velocity of Vcy (in kg per hour) wherein where P is the desired concentration of cyanuric chloride in the solution or suspension to be produced in weight %, PLM is the concentration of cyanuric chloride in the solvent used which also includes O, VLM is the velocity of the solvent added in kg/h, AND PLM, VLM and TLM, the temperature of the added solvent, are so selected that the expression does not exceed the boiling temperature in DEG C. of the solvent used and wherein Cp(LM) and Cp(Cy) signify the specific heat capacities in cal. x g 1 x ( DEG degree C) 1 of the solvent and cyanuric chloride respectively, whereupon in a given case within at most 3 minutes after bringing the cyanuric chloride and solvent into contact the flowing mixture is cooled to the desired storage temperature.

    7.
    发明专利
    未知

    公开(公告)号：FR2465686A1

    公开(公告)日：1981-03-27

    申请号：FR8015635

    申请日：1980-07-15

    Applicant: DEGUSSA

    Inventor： BITTNER FRIEDRICH ,  HEIMBERGER WERNER ,  HENKEL KURT ,  KRIEBITZSCH NORBERT ,  PETZOLD MARTIN ,  PUSCHNER KURT

    IPC: B01D3/00 ,  B01D3/14 ,  B01D3/32 ,  B01D3/34 ,  C01C3/00

    Abstract: To obtain a cyanogen chloride which is practically free from water and preferably also free from hydrogen cyanide, hydrogen chloride and organic compounds, the crude cyanogen chloride is fractionally distilled. The return is led in countercurrent flow to the crude gas, thereby takes up the impurities and is further evaporated in the lower portion of the column, respectively in a special apparatus, by a liquid whose temperature is higher than the boiling temperature of cyanogen chloride. Thereby this liquid also takes up the impurities. The purification action is aided by a wash for the crude cyanogen chloride connected in series before it enters the fractionating column. It is very advantageous to combine the process with a plant for the production of cyanogen chloride.

    8.
    发明专利
    未知

    公开(公告)号：DD147103A5

    公开(公告)日：1981-03-18

    申请号：DD21646079

    申请日：1979-10-25

    Applicant: DEGUSSA

    Inventor： HENTSCHEL KLAUS ,  BITTNER FRIEDRICH

    IPC: B01J10/02 ,  C07D251/26

    Abstract: 2-Alkoxy-4,6-dichloro-s-triazines are produced by the known reaction of cyanuric chloride with an alcohol in the presence of an acid binding agent in an improved manner by working at high mixing velocities and thus at high reaction speed and thereby obtaining high throughputs in small tubular containers by introducing liquid cyanuric chloride through a nozzle in the upper portion of the mixing apparatus in countercurrent flow to upwardly flowing reactants (plus acid binding agent) introduced from at least one lower nozzle above a breast shaped constriction in the lower, open portion of the apparatus. The process can be carried out at normal, reduced or elevated pressure.

    9.
    发明专利
    未知

    公开(公告)号：DD147055A5

    公开(公告)日：1981-03-18

    申请号：DD21646279

    申请日：1979-10-25

    Applicant: DEGUSSA

    Inventor： HENTSCHEL KLAUS ,  BITTNER FRIEDRICH ,  SCHREYER GERD ,  FRANZ GEORG

    IPC: B01F23/47 ,  B01J19/26 ,  C07D251/28 ,  C07D251/44 ,  B01F5/20

    Abstract: There is provided an apparatus for bringing into contact liquids at least one of which is viscous, the apparatus consisting essentially of a tubular container, a first nozzle from introducing a liquid in the upper portion of the container, at least one other nozzle lower than the first nozzle for introducing a different liquid, the tubular container being closeable at the tap thereof and downward from said other nozzle being constricted breast shaped to form a discharge opening, said other nozzles are preferably of polished steel, said other nozzles consist essentially of at least one tangential spray means arranged in at least one row, said other nozzles being slightly above said constriction and being directed in the direction of the upper closeable device or said first nozzle and wherein the discharge opening can discharge into another container which is permanently or detachably connected to the tubular container, said further container can be provided with means for establishing reduced pressure or superatmospheric pressure.

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