Process for continuous dry granulation of powdered carbon black.

    公开(公告)号:ZA975142B

    公开(公告)日:1998-01-05

    申请号:ZA975142

    申请日:1997-06-10

    Applicant: DEGUSSA

    Abstract: A continuous drying process for powdered lampblack, comprises: (i) passing the lampblack through a helical granulator assembly which is formed by a helical sequence of metal quills whose maximum tip speed is 1-6 m/s; (b) allowing an average residence period for the powder of 20-600 seconds; (c) inoculating the raw incoming lampblack with 50 % preferably 5-30% granular lampblack (9); (d) pre-compressing the raw incoming lampblack to 150-300 g/l; and (e) using a dry pearl drum after the helical granulator.

    Inverzní saze a způsob jejich výroby

    公开(公告)号:CZ298774B6

    公开(公告)日:2008-01-23

    申请号:CZ122599

    申请日:1999-04-08

    Applicant: DEGUSSA

    Abstract: Inverzní saze, které mají menší valivý odpor při stejně dobrém nebo lepším chování za vlhka a distribuce velikosti částic má menší zastoupení částic s velkými průměry. To vedeke zlepšení oděrového chování pryžových sloučenin, které se připravily za použití těchto sazí. Způsob výroby inverzních sazí v běžných sazných reaktorech kontrolou spalování ve spalovací komoře, při které dojde k tvorběsazných jader, která se okamžitě uvedou do kontaktu se surovým sazným materiálem. Saze vykazují nižší zastoupení větších částic, pokud se vhodným způsobem zvýší přívod spalovacího vzduchu a surového sazného materiálu.

    SOOT IN GRANULES AND A PROCESS FOR THE PREPARATION THEREOF

    公开(公告)号:HRP980619B1

    公开(公告)日:2003-06-30

    申请号:HRP980619

    申请日:1998-12-08

    Applicant: DEGUSSA

    Abstract: Carbon black beads, which contain natural and/or synthetic wax and are produced by granulating carbon black powder, have a wax content of 1 to less than 10 wt.% and a hardness greater than 0.15 N. An Independent claim is also included for the continuous production of the beads. The beads are produced in a heated granulator with a toothed shaft and inlet, granulation and outlet zones. The carbon black powder is fed into the inlet zone. Molten wax or wax mixture with an average droplet size NOTGREATER 50 micron is sprayed into the first third of the granulation zone. The shaft operates at a maximum peripheral velocity of 1-6 m/s and the average residence time of the carbon black in the machine is 20-600 seconds.

    37.
    发明专利
    未知

    公开(公告)号:TR200100599T2

    公开(公告)日:2001-07-23

    申请号:TR200100599

    申请日:1999-08-28

    Applicant: DEGUSSA

    Abstract: The inventive carbon black is characterised by an STSA surface of between 20 and 180 m /g, a 24M4-DBP-absorption of between 40 and 140 ml/100g, a specific BET surface of between 20 and 250 m /g, in that it contains 0.01 to 20 wt % silicon in relation to its total weight and in that it has a ratio of tan delta 0/tan delta 60 greater than 3.37-0.0068•STSA. The inventive carbon black is produced by adding silicon-containing compounds are added and mixed with the of carbon black raw material during the oxidative pyrolysis of the same and optionally, using carbon black oil as the fuel. The inventive carbon black can be used as a filler in rubber mixtures, preferably for tyres.

    39.
    发明专利
    未知

    公开(公告)号:DE19840663A1

    公开(公告)日:2000-03-09

    申请号:DE19840663

    申请日:1998-09-05

    Applicant: DEGUSSA

    Abstract: The inventive carbon black is characterised by an STSA surface of between 20 and 180 m /g, a 24M4-DBP-absorption of between 40 and 140 ml/100g, a specific BET surface of between 20 and 250 m /g, in that it contains 0.01 to 20 wt % silicon in relation to its total weight and in that it has a ratio of tan delta 0/tan delta 60 greater than 3.37-0.0068•STSA. The inventive carbon black is produced by adding silicon-containing compounds are added and mixed with the of carbon black raw material during the oxidative pyrolysis of the same and optionally, using carbon black oil as the fuel. The inventive carbon black can be used as a filler in rubber mixtures, preferably for tyres.

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