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    • 1. 发明授权
    • Fire suppression composition and device
    • 灭火组成和装置
    • US06217788B1
    • 2001-04-17
    • US09504599
    • 2000-02-15
    • Edward J. WuchererGary F. Holland
    • Edward J. WuchererGary F. Holland
    • A62D106
    • A62D1/06A62C5/006
    • The present invention is directed to a fire suppression composition, comprising a propellant comprising a fuel and an oxidizer, said propellant capable of generating inert gas; and a fire suppression additive selected from the group consisting of iron-containing compounds, non-halide potassium salts, and combinations thereof. Useful iron-containing compounds include ferric oxide, ferric carbonate, ferric oxalate, and iron cyanide dyes. Useful potassium salts include potassium acetate, potassium acetylacetonate, potassium bicarbonate, and potassium carbonate. The invention is also directed to a fire suppression apparatus that utilizes the above fire suppression composition.
    • 本发明涉及一种灭火组合物,其包含包含燃料和氧化剂的推进剂,所述推进剂能够产生惰性气体; 以及选自含铁化合物,非卤化钾盐及其组合的灭火添加剂。 有用的含铁化合物包括氧化铁,碳酸铁,草酸铁和氰化铁染料。 有用的钾盐包括乙酸钾,乙酰丙酮钾,碳酸氢钾和碳酸钾。 本发明还涉及一种利用上述灭火组合物的灭火装置。
    • 2. 发明授权
    • Compositions comprising hydrofluorocarbons and their manufacture
    • US06635187B1
    • 2003-10-21
    • US09713128
    • 2000-11-15
    • Barry A. MahlerV. N. Mallikarjuna RaoAllen Capron Sievert
    • Barry A. MahlerV. N. Mallikarjuna RaoAllen Capron Sievert
    • A62D106
    • A62D1/0057A62D1/00
    • A process is disclosed for producing compositions including (a) a compound selected from the group consisting of CHF2CF3, CHF2CHF2, CH2FCF3, CH3CF3, CH3CHF2, CH2FCF2CHF2 and CHF2CF2CF2CHF2 and (b) at least one saturated halogenated hydrocarbon and/or ether having the formula: CnH2n+2-a-bClaFbOc wherein n is an integer from 1 to 4, a is an integer from 0 to 2n+1, b is an integer from 1 to 2n+2-a, and c is 0 or 1, provided that when c is 1 then n is an integer from 2 to 4, and provided that component (b) does not include the selected component (a) compound, wherein the molar ratio of component (b) to component (a) is between about 1:99 and a molar ratio of HF to component (a) in an azeotrope or azeotrope-like composition of component (a) with HF. This process involves (A) combining (i) the azeotrope or azeotrope-like composition with (ii) at least one fluorination precursor compound wherein the precursor component (ii) is the fluorination precursor to component (b); and (B) reacting a sufficient amount of the HF from the azeotrope or azeotrope-like composition (i) with precursor component (ii) to provide a composition containing components (a) and (b) in said ratio. In addition, compositions are disclosed comprising component (a) (e.g., CHF2CHF2), and component (b) wherein component (b) includes at least two compounds, at least one of which is an ether, and the molar ratio of component (b) to component (a) is between about 1:99 and a molar ratio of HF to component (a) in an azeotrope or azeotrope-like composition of component (a) with HF. Also disclosed is a process for recovering HF from a product mixture comprising HF and CHF2CHF2, which involves distilling the product mixture to remove all products which have a lower boiling point than the lowest boiling azeotrope containing HF and CHF2CHF2; and distilling said azeotrope to recover HF as an azeotropic composition containing HF and CHF2CHF2; and compositions of hydrogen fluoride in combination with an effective amount of CHF2CHF2 to form an azeotrope or azeotrope-like composition with hydrogen fluoride (e.g., compositions containing from about 70.5 to 75.5 mole percent CHF2CHF2).