Appeal No. 2004-2028
Application No. 09/423,746
hydroxycarbonate,...wherein said inhibitor is present in amount by
weight of greater than 0.5% of the weight of sodium bicarbonate.”
To remedy these deficiencies in claim 1 of Fagiolini ‘567, the
examiner relies on the disclosure of Regler. We find that Regler
teaches a fine powder mixture useful for removing acidic
components, such as hydrogen chloride and sulfur dioxide, in waste
gases resulting from the burning of wastes. See pages 1 and 4. We
find that Regler teaches forming the powder mixture by adding a
basic alkaline earth compound, such as magnesium oxide and/or
magnesium hydroxide, as well as a surface active substance, such as
brown coal-health furnace coke (lignite coke), to sodium hydrogen
carbonate (sodium bicarbonate). See page 4. The fraction of the
surface active substance in the mixture is preferably 1 to 10 wt%.
See page 5. The fraction of the basic alkaline earth compound
employed, such as magnesium oxide and/or magnesium hydroxide, is
greater than 0.5 wt%. See page 4, together with page 7. According
to Regler (page 4), the use of such mixture provides “substantial
advantage” in the removal of the acid components from the waste
gases.
Given the advantage of adding the claimed amount of magnesium
oxide, magnesium hydroxide and/or lignite coke to sodium
bicarbonate to form a powder mixture useful for removing, inter
alia, hydrogen chloride from burned or smoke waste gases, we concur
6
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Next
Last modified: November 3, 2007