DRY POWDER FIRE-FIGHTING COMPOSITION

• US 20170165514A1
• Filed: 07/01/2014
• Published: 06/15/2017
• Est. Priority Date: 07/01/2014
• Status: Active Grant

• Current Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Original Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Inventors: Cortner, Thomas S., Coufal, Ronald
• Granted Patent: US 10,967,211 B2
• Time in Patent Office: Days
• CPC Class Codes: A62C 13/006 for the propulsion of extinguishing powder
• CPC Class Codes: A62C 13/64 the extinguishing material being released by means of a valve
• CPC Class Codes: A62D 1/0014 Powders; Granules
• CPC Class Codes: A62D 1/0064 Gels; Film-forming compositions

Abstract

Various embodiments disclosed relate to dry powder fire-fighting compositions. In various embodiments, the present invention provides a method of fighting a fire. The method can include contacting at least one of a fire and a source thereof with a composition including bentonite and aluminum hydroxide.

Claims

1-49. -49. (canceled)

50. A method of fighting a fire, the method comprising:

contacting at least one of a fire and a source thereof with a composition comprising bentonite and aluminum hydroxide.

51. The method of claim 50, wherein the composition is a powder.

52. The method of claim 50, wherein the fire comprises at least one of a class A and a class B fire.

53. The method of claim 50, further comprising dispersing the composition from a portable fire extinguisher prior to the contacting.

54. The method of claim 50, wherein about 10 wt % to about 90 wt % of the composition is the bentonite.

55. The method of claim 50, wherein the bentonite comprises at least one of sodium bentonite and calcium bentonite.

56. The method of claim 50, wherein about 40 wt % to about 100 wt % of the bentonite is montmorillonite.

57. The method of claim 50, wherein about 0 wt % to about 20 wt % of the bentonite is water.

58. The method of claim 50, wherein about 5 wt % to about 20 wt % of the bentonite is at least one of feldspar, quartz, gypsum, dolomite, illite, mica, calcite, opal, dolomite, siderite, and clinoptilolite.

59. The method of claim 50, wherein the bentonite has a median particle diameter (D₅₀) of about 10 μ

m to about 600 μ

m.

60. The method of claim 50, wherein the aluminum hydroxide is about 10 wt % to about 90 wt % of the composition.

61. The method of claim 50, wherein (mass of the bentonite):

(mass of the aluminum hydroxide) is about 0.1;

1 to about 10;

1.

62. The method of claim 50, wherein the aluminum hydroxide is at least one of Al(OH)₃ and Al₂O₃.3H₂O.

63. The method of claim 50, wherein the aluminum hydroxide has a median particle diameter (D₅₀) of about 10 μ

m to about 600 μ

m.

64. The method of claim 50, wherein the aluminum hydroxide and the bentonite have a median particle diameter (D₅₀) that is within about 500 μ

m of one another.

65. The method of claim 50, wherein the composition further comprises a flow agent or anticaking agent.

67. A system for performing the method of claim 50, the system comprising:

a fire-extinguishing apparatus comprising the composition therein.

66. A method of fighting a fire, the method comprising:

contacting at least one of a class A fire, a class B fire, and a source thereof with a composition comprising about 60 wt % to about 90 wt % bentonite and about 30 wt % to about 70 wt % aluminum hydroxide, wherein the contacting is sufficient to extinguish at least part of the fire or decrease the intensity of at least part of the fire;

wherein the bentonite has a median particle diameter (D₅₀) of about 40 μ

m to about 150 μ

m, the aluminum hydroxide has a median particle diameter (D₅₀) of about 40 μ

m to about 150 μ

m, the median particle diameter (D₅₀) of the aluminum hydroxide and the median particle diameter (D₅₀) of the bentonite are within about 50 μ

m of one another, and (mass of the bentonite);

(mass of the aluminum hydroxide) is about 0.5;

1 to about 2;

1.

69. A composition for fire-fighting, the composition comprising:

bentonite; and

aluminum hydroxide.