White carbon black surface recombination modified preparation method

White carbon black surface recombination modified preparation method

  • CN 101,230,212 B
  • Filed: 01/24/2007
  • Issued: 08/22/2012
  • Est. Priority Date: 01/24/2007
  • Status: Active Grant
First Claim
Patent Images

1. a white carbon black surface recombination modified preparation method is characterized in that preparing raw material and comprises white carbon black, methyl alcohol, water, benzyl halide, tetradecyl dimethyl benzyl ammonium chloride or dodecyl benzyl dimethyl ammonium chloride or T 46155 based quaternary ammonium salt or dodecyl bi-quaternary ammonium salt;

  • Proportioning raw materials is the basis with white carbon black quality;

    All the other raw materials according to the per-cent with respect to white carbon black quality are;

    benzyl halide 5.0~

    20.0%;

    Methyl alcohol 0.1~

    5.0%;

    Tetradecyl dimethyl benzyl ammonium chloride or dodecyl benzyl dimethyl ammonium chloride or T 46155 based quaternary ammonium salt or dodecyl bi-quaternary ammonium salt 1.0~

    10.0%, water 0.2~

    6.0%;

    The preparation method is;

    1. take by weighing the whole white carbon black of formula ratio, add in the reactor drum, open stirring, the rotational response device is warming up to 100~

    250 ℃

    , and after keeping 10~

    30 minutes under this temperature, with air in the nitrogen replacement reactor drum;

    2. take by weighing the whole methyl alcohol of formula ratio, will through the methyl alcohol of high-pressure atomization in reactor drum with white carbon black uniform mixing, under agitation use the white carbon black of methyl alcohol pre-treatment 5~

    20 minutes, elevated temperature to 150~

    350 ℃

    ;

    3. with the formula ratio benzyl halide with atomizing state and white carbon black uniform mixing, reacted 60~

    240 minutes;

    4. take by weighing the whole water of formula ratio, will through the water of high-pressure atomization in reactor drum with white carbon black uniform mixing, water is the white carbon black of pre-treatment 5~

    20 minutes again;

    5. take by weighing whole tetradecyl dimethyl benzyl ammonium chloride of formula ratio or dodecyl benzyl dimethyl ammonium chloride or T 46155 based quaternary ammonium salt or dodecyl bi-quaternary ammonium salt, mix, continue reaction 30~

    120 minutes with its atomizing and with white carbon black;

    6. use gas in 110 ℃

    of fresh hot air metathesis reactor, again through cooling off, promptly get product.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×