×

Manufacture of graphitizable petroleum coke

  • US 2,922,755 A
  • Filed: 10/14/1957
  • Issued: 01/26/1960
  • Est. Priority Date: 10/14/1957
  • Status: Expired due to Term
First Claim
Patent Images

1. A PROCESS FOR PRODUCING GRAPHITIZABLE COKE WHICH WHEN CALCINED AND GRAPHITIZED HAS A LONGITUDINAL COEFFICIENT OF THERMAL EXPANSION/*C. NOT SUBSTANTIALLY ABOVE ABOUT 0.55X10-**6, WHICH PROCESS COMPRISES SUBJECTING TO COKING CONDITIONS OF TEMPERATURE AND PRESSURE A PETROLEUM DERIVED CHANGE STOCK COMPRISING A HIGHLY AROMATIC THERMAL TAR AND FROM ABOUT 10% TO ABOUT 30% BY WEIGHT OF A VIRGIN REDUCED CRUDE.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×