Method for producing sulfuric acid associated with high Belite cement through anhydrite

Method for producing sulfuric acid associated with high Belite cement through anhydrite

  • CN 1,696,073 A
  • Filed: 03/23/2005
  • Published: 11/16/2005
  • Est. Priority Date: 03/23/2005
  • Status: Active Application
First Claim
Patent Images

1. A method for producing sulfuric acid and co-producing high belite cement by using anhydrite is characterized in that the produced cement clinker belite (C)2S) high content, and the mineral composition sum value is as follows:

  • C3S 25~

    45%

    C2S 35~

    55%

    C3A 5~

    8%

    C4AF 7~

    15%

    SO3

    2.5%

    CaS <

    1.0%

    FCaO <

    1.0%



    KH 0.75~

    0.82SM 2.5~

    4.0IM 1.3~

    2.1at the same time producing SO2And (3) preparing sulfuric acid by using kiln gas with the concentration of 9-11%. The output ratio of the sulfuric acid to the clinker is 1;

    1, and the clinker can be mixed with fly ash and gypsum to produce low-heat cement.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×