Process for preparing insoluble sulphur and productive equipment

Process for preparing insoluble sulphur and productive equipment

  • CN 1,240,192 A
  • Filed: 04/26/1999
  • Published: 01/05/2000
  • Est. Priority Date: 04/19/1996
  • Status: Active Grant
First Claim
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1. the preparation method of an insoluble sulfur:

  • it is characterized in that sulphur is joined in the molten reaction of Salmon-Saxl device (1) of tubular type, heat up gradually and carry out fusion, when temperature is raised to 120 ℃

    , kept 6-8 hour, melt is sent into low level reactor (2);

    The stablizer that adds 0.1-0.5% (weight percent) In the melt in low level reactor (2), and be warming up to 400 ±

    20 ℃

    , kept 20-40 minute;

    the sulphur melt is sent into stabilization pond (5) by reactor (2) under the protection of quenching liquid, contain the CH of 0.4-0.7% in the stabilization pond 3CH 2The aqueous solution of-OH is stablized discharging in 5-30 minute;

    To expect then behind solidification device (6) dry solidification, pulverize the 80-100 order through pulverizer (7);

    Send into unscrewing type extraction kettle (8), extraction in unscrewing type extraction kettle (8) is with the CS in pump (11) the extraction basin (10) 2Squeeze in the unscrewing type extraction kettle, squeeze into additive after 40 minutes , the amount of squeezing into accounts for CS 24% of total amount was stirred about 10 minutes;

    the mixed solution in the unscrewing type extraction kettle tower (8) is entered in the distillation tower (16), with 95-110 ℃

    of water-bath 15 minutes, treat CS 2Stop water-bath after all reclaiming;

    Discharge loose insoluble sulfur from column still (16) bottom, drying is crushed to 100 orders, is non-oil-filled insoluble sulfur, again through oil-filled agitator (22), adds dispersion agent nonyl Soxylat A 25-7, makes oil-filled type insoluble sulfur by high-speed stirring.

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