FUEL & CHEMICAL PROCESSES ›› 2019, Vol. 50 ›› Issue (5): 40-43.

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Quality problems in modified pitch production and its countermeasures

Ma Chengxiang   

  1. Iron Works of Pangang Group Panzhihua Steel & Vanadium Co.,Ltd.,Panzhihua 617000,China
  • Online:2019-09-23 Published:2019-10-18

Abstract:

Analysis is made for the high content of toluene insolubles and quinoline insolubles in the modified pitch and cause of impacting the quality is found. Measures have been taken to improve the quality of the modified pitch,such as lowering the free space temperature on oven top and reducing the pressure of HP ammonia liquor,etc..

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