US2012018064A1PendingUtilityA1

Explosive suspension

37
Individually held — no corporate assignee on recordPriority: Mar 21, 2008Filed: Mar 19, 2009Published: Jan 26, 2012
Est. expiryMar 21, 2028(~1.7 yrs left)· nominal 20-yr term from priority
Inventors:Dennis R. WilzbacherMike L. SchieleJohn Caleb HarmanAndrew E. Fenwick
C06B 31/285C06B 47/00
37
PatentIndex Score
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Claims

Abstract

An explosive suspension used in blasting operations such as, but not limited to, mining operations and the like, composed of ammonium nitrate (AN) based explosives incorporating a solid fuel material and a suspending agent. The suspension comprises an oxidizer component, a solid fuel material, optionally up to 10 weight % of a liquid fuel component, and a suspending agent. The solid fuel material comprises vitrinite macerals, liptinite macerals, and inert macerals fusinite and semifusinite, and is characterized as (1) having a concentration of liptinite that is higher than normal coals, and (2) having a concentration of pseudovitrinite that is significantly lower than normal coals.

Claims

exact text as granted — not AI-modified
1 . An explosive suspension comprising:
 a dry, granular, solid component, or solution thereof,   a solid fuel material, and   a suspending agent,   wherein said solid fuel material contains a vitrinite maceral, liptinite maceral, and inert macerals fusinite and semifusinite, and   wherein the amount of liptinite macerals is higher than normal, and wherein almost no pseudivitrinite is present in said solid fuel material.   
     
     
         2 . The suspension according to  claim 1 , further comprising a liquid fuel component. 
     
     
         3 . The suspension according to  claim 1 , wherein the dry granular solid component, or solution thereof, is, or contains, an oxidizer. 
     
     
         4 . The suspension according to  claim 3 , wherein the oxidizer is ammonium nitrate. 
     
     
         5 . The suspension according to  claim 2 , wherein the liquid fuel component is a fuel oil or diesel fuel. 
     
     
         6 . The suspension according to  claim 5 , wherein the amount of the liquid component is about 0-10% by weight percent. 
     
     
         7 . The suspension according to  claim 1 , wherein the amount of the vitrinite maceral in said solid fuel material is about 75 weight percent. 
     
     
         8 . The suspension according to  claim 1 , wherein said solid fuel material is present the amount of about 5 to about 80 weight percent. 
     
     
         9 . The suspension according to  claim 1 , where said suspending agent is a polymeric or nonpolymeric emulsifying agent, or mixture thereof. 
     
     
         10 . An explosive suspension comprising:
 a dry, granular, solid oxidizer component, or solution thereof,   a liquid fuel component,   a solid fuel material, and   a suspending agent,   wherein the liquid component is present not more than about 6% by weight and wherein said solid fuel material is coal containing vitrinite and liptinite macerals.   
     
     
         11 . The suspension according to  claim 10 , wherein the oxidizer is ammonium nitrate. 
     
     
         12 . The suspension according to  claim 11 , wherein the liquid fuel component is a fuel oil or diesel fuel. 
     
     
         13 . The suspension according to  claim 10 , wherein the amount of vitrinite macerals in said solid fuel material is about 75 weight percent of the solid fuel material. 
     
     
         14 . The suspension according to  claim 13 , wherein said solid fuel material is present in the amount of about 5 to about 80 weight percent. 
     
     
         15 . The suspension according to  claim 10 , wherein said suspending agent is a polymeric or nonpolymeric emulsifying agent, or mixture thereof. 
     
     
         16 . An explosive suspension comprising an oxidizer component, a liquid fuel component, a solid fuel material, and a suspending agent, wherein said solid fuel material is coal containing vitrinite and liptinite macerals.

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