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US3630696A Expired / Lapsed US ⏱️ 0.0 years remaining

Combustion adjuvant

Assignee: Trimex Corp
•
Filing: 1969-10-27
•
Granted: 1971-12-28
•
Expires: 1989-10-27
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Abstract

Abstract An adjuvant for hydrocarbon fuels is provided comprising a calcium based montmorillonite clay, a phosphate, and a source of boron oxide. A preferred formulation comprises 85 weight percent calcium bentonite, 10 weight percent anhydrous trisodium phosphate, and 5 weight percent sodium borate. The adjuvant is combined with the hydrocarbon fuel or with combustion air in an amount of about 0.1 to 2.0 weight percent, based on the weight of the hydrocarbon fuel. Combustion efficiency is substantially improved and oxidation is substantially more complete, so that combustion products are produced in less noxious forms. In addition, the nature of slag or other deposits upon surfaces in a furnace or combustion chamber are substantially altered, so that corrosive conditions do not occur and the deposition of slag is prevented or materially reduced, and the ash is produced in a soft, friable form.

Inventors

  • 👤 Maclin R Milner
  • 👤 Frederick B Johnston

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 07:39
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/32; C10L9/00

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 14 words
The composition of claim 1, wherein said alkali metal phosphate is anhydrous trisodium phosphate.
Claim 2
Dependent Claim 14 words
The composition of claim 1, wherein said source of boron oxide is sodium borate.
Claim 3
Dependent Claim 12 words
The composition of claim 1, wherein said calcium montmorillonite is calcium-based bentonite.
Claim 4
Dependent Claim 24 words
An adjuvant for combustible hydrocarbon fuels comprising 85 weight percent calcium bentonite, 10 weight percent anhydrous trisodium phosphate, and 5 weight percent sodium borate.
Claim 5
Dependent Claim 21 words
A fuel having improved combustion properties comprising a combustible hydrocarbon and about 1 weight percent of the adjuvant of claim 2.
Claim 6
Dependent Claim 14 words
The fuel of claim 3, wherein said combustible hydrocarbon is a liquid petroleum oil.
Claim 7
Dependent Claim 11 words
The fuel of claim 3, wherein said combustible hydrocarbon is coal.
Claim 8
Dependent Claim 39 words
The method of promoting combustion efficiency of hydrocarbon fuels comprising burning said fuel in a combustion zone in combination with about 0.1 to 2.0 weight percent of the adjuvant of claim 1, base on the weight of the fuel.
Claim 9
Dependent Claim 39 words
The method of promoting combustion efficiency of hydrocarbon fuels comprising burning said fuel in a combustion zone in combination with about 0.1 to 2.0 weight percent of the adjuvant of claim 5, base on the weight of the fuel.
Claim 10
Dependent Claim 45 words
The method of promoting combustion efficiency of hydrocarbon fuels comprising burning said fuel in a combustion zone in combination with about 0.1 to 10 pounds per day of the adjuvant of claim 1 per 1,000 square feet of exposed surface area of said combustion zone.
Claim 11
Dependent Claim 45 words
The method of promoting combustion efficiency of hydrocarbon fuels comprising burning said fuel in a combustion zone in combination with about 0.1 to 10 pounds per day of the adjuvant of claim 5 per 1,000 square feet of exposed surface area of said combustion zone.

References Cited (Backward Citations)

CA544113A Cited
US1167471A Cited
US2139398A Cited
US2137727A Cited
US2217994A Cited
US3004836A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-12-27 1975-06-28 1975-12-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-12-27 1979-06-28 1979-12-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-12-27 1983-06-28 1983-12-28 $7700.00 Window Closed / Lapsed

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