Process for preparing a graphite product
First Claim
1. A process for preparing a graphite product, which comprises:
- (a) mixing a hydrocarbon material derived from coal with a hydrocarbon solvent having a boiling point or a distillation temperature for 95 vol % of the solvent less than 350°
C. and a B.M.C.I. value of 5 to 70, said value being defined asB.M.C.I.=48,640/k+473.7S-456.8wherein k is the average boiling point (°
K.) and S is the specific gravity at 60°
F.;
(b) separating insoluble material which settles from the resulting mixture upon standing;
(c) removing by distillation at least a portion of said solvent from the insoluble matter free mixture;
(d) coking the residue obtained after distillation, thereby forming an acicular, green coke;
(e) calcining said acicular green coke, thereby obtaining an acicular calcined coke having a pore volume of more than 40×
10-3 cc/g; and
(f) blending said acicular calcined coke with a binder, shaping the blend and graphitizing said blend at a high temperature.
2 Assignments
0 Petitions
Accused Products
Abstract
A process for preparing a carbon product, which comprises: (a) mixing hydrocarbon material derived from coal with a hydrocarbon solvent having a boiling point or a distillation temperature for 95 vol % of the solvent less than 350° C. and a B.M.C.I. value of 5 to 70, the value being defined as: B.M.C.I.=48,640/k+473.7S-456.8, wherein k is the average boiling point (°K) and S is the specific gravity at 60° F., (b) separating insoluble material which settles from the resulting mixture upon standing, (c) removing by distillation at least a portion of said solvent from the insoluble matter free mixture, (d) coking the residue obtained after distillation, thereby forming an acicular, green coke, (e) calcining the acicular green coke, thereby obtaining an acicular calcined coke having a pore volume of more than 40+10-3 cc/g, and (f) blending the acicular calcined coke with a binder, shaping the blend and graphitizing the blend at a high temperature.
29 Citations
7 Claims
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1. A process for preparing a graphite product, which comprises:
-
(a) mixing a hydrocarbon material derived from coal with a hydrocarbon solvent having a boiling point or a distillation temperature for 95 vol % of the solvent less than 350°
C. and a B.M.C.I. value of 5 to 70, said value being defined asB.M.C.I.=48,640/k+473.7S-456.8 wherein k is the average boiling point (°
K.) and S is the specific gravity at 60°
F.;(b) separating insoluble material which settles from the resulting mixture upon standing; (c) removing by distillation at least a portion of said solvent from the insoluble matter free mixture; (d) coking the residue obtained after distillation, thereby forming an acicular, green coke; (e) calcining said acicular green coke, thereby obtaining an acicular calcined coke having a pore volume of more than 40×
10-3 cc/g; and(f) blending said acicular calcined coke with a binder, shaping the blend and graphitizing said blend at a high temperature. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification