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33 records (took 0.018 seconds)

    11.
    发明专利
    未知

    公开(公告)号：FR2366339B1

    公开(公告)日：1981-10-16

    申请号：FR7705957

    申请日：1977-03-01

    Applicant: DEGUSSA

    Inventor： VOLL MANFRED DR ,  ROTHBUEHR LOTHAR DR ,  KUEHNER GERHARD DR

    IPC: C09C1/50 ,  F23D11/12 ,  C09C1/48

    Abstract: Carbon black is produced in a flow reaction by spraying a hydrocarbon containing liquid feedstock with the aid of a propellant gas into a stream of hot reaction gases produced by burning a fuel, the feedstock-propellant gas-jet enters the reaction zone with a spraying angle that is greater than the spreading angle of a free jet. There is also described an apparatus for carrying out the process which comprises a binary injector supporting an atomizing nozzle whose head has several channels which are adjusted from zero degrees to different angles to the longitudinal axis of the nozzle.

    14.
    发明专利
    未知

    公开(公告)号：DE2404536A1

    公开(公告)日：1975-08-14

    申请号：DE2404536

    申请日：1974-01-31

    Applicant: DEGUSSA

    Inventor： OELMANN ALFRED DR ING ,  ENGEL CLAUS RICHARD DR ,  ROTHBUEHR LOTHAR DR

    IPC: C09C1/48

    Abstract: Deeply colored carbon black having a low content of extractable matter and a primary particle size of about 8-25 nanometers is made by the gas black process using as the carrier gas for the vapors of the carbon black forming oil a hydrogen rich mixture containing over about 50 volume % hydrogen and then collecting the separated carbon black deposited on a cooling roll.

    15.
    发明专利
    未知

    公开(公告)号：DE2333079A1

    公开(公告)日：1975-01-23

    申请号：DE2333079

    申请日：1973-06-29

    Applicant: DEGUSSA

    Inventor： ENGEL CLAUS RICHARD DR ,  LINKE HEINZ DR ,  ROTHBUEHR LOTHAR DR ,  SROKA WERNER DR ,  WESTLINNING HERMANN DR ,  VOGT JES DIPL-ING DR

    IPC: B29B13/00 ,  B29B7/00 ,  B29B7/60 ,  B29B7/72 ,  B29B9/00 ,  B29C47/00 ,  B29C47/10 ,  B29C48/395 ,  C08J3/22

    Abstract: 1468853 Carbon black-filled thermoplastics DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT 12 June 1974 [29 June 1973] 26031/74 Heading C3P Carbon black is incorporated in a thermoplastics material by a process which comprises adding the carbon black to the thermoplastics material in a continuous screw extruder at at least two points lying one behind the other in the delivery direction. Plastics material and part of the carbon black may be introduced together at a first inlet, and the distance between inlets may be 2 to 6, preferably 3 to 5 times the diameter of the kneader screw. The process may be used to produce concentrates which may be diluted with further plastics material. Examples describe the preparation of compositions of carbon black with (1 to 4) polyethylene, (2) polypropylene and (3) polystyrene.

    Furnace carbon black mfr - with continuous control of particle size by ir analysis of outlet gas
    16.
    发明专利
    Furnace carbon black mfr - with continuous control of particle size by ir analysis of outlet gas 未知

    公开(公告)号：DE2113425A1

    公开(公告)日：1972-09-28

    申请号：DE2113425

    申请日：1971-03-19

    Applicant: DEGUSSA

    Inventor： ROTHBUEHR LOTHAR DR

    IPC: C09C1/50

    Abstract: The particle size of the product, as characterised by iodine adsorption, is maintained constant by continuous IR analysis of the gas at the outlet for CH4 and for C2H2, or CO content and consequent proportional adjustment of the flow rate of combustion gas and/or oil feed, or of the air supply. The flow of combustion gas and/or oil is adjusted inversely proportionally to the CH4 and/or C2H2 content and in inverse proportion to the CO content. The total hydrocarbon content may be measured by flame ionisation detectors and used to control the process. Finer control of the particle size of the carbon black is obtained than by known methods e.g., measurement of thermal conductivity of the effluent gas.

    19.
    发明专利
    未知

    公开(公告)号：DE2608417C3

    公开(公告)日：1981-02-12

    申请号：DE2608417

    申请日：1976-03-01

    Applicant: DEGUSSA

    Inventor： VOLL MANFRED DR ,  ROTHBUEHR LOTHAR DR ,  KUEHNER GERHARD DR

    IPC: C09C1/50 ,  F23D11/12

    Abstract: Carbon black is produced in a flow reaction by spraying a hydrocarbon containing liquid feedstock with the aid of a propellant gas into a stream of hot reaction gases produced by burning a fuel, the feedstock-propellant gas-jet enters the reaction zone with a spraying angle that is greater than the spreading angle of a free jet. There is also described an apparatus for carrying out the process which comprises a binary injector supporting an atomizing nozzle whose head has several channels which are adjusted from zero degrees to different angles to the longitudinal axis of the nozzle.

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