Appeal No. 96-0797
Application No. 08/089,962
7. Backtitrate with O.125N NaOH to a blue-green end
point. If less than 5 ml NaOH are used,
start over using 5 more ml H SO in step 3.
2 4
If more than 10 ml NaOH are used, start
over using 5 less ml H SO in step 3.
2 4
The concentration of limestone (CaCO ), calcium hydroxide
3
(Ca(OH) ), and calcium sulfite (CaSO .1/2H 0) are
2 3 2
determined by the following calculations:
8. gm/1 CaCO = – (ml H SO x N H SO )-(ml NaOH x N NaOH) • 503 24 2 4
______________________________________
ml sample
9. gm/1 Ca(OH) = – (ml H SO x N H SO )-(ml NaOH x N NaOH • 372 2 4 2 4
____________________________________
ml sample
10. gm/1 CaSO 1/2H O = (ml KIO X N KIO ).
3 2 3 3
__________________ 64.5
ml sample
Relying on the above teachings, the examiner concludes that it
would have been obvious to use the above "Modified Palmrose
analysis with an autotitrator ... as an alternative on-line
monitor of the oxidation loss for [the] flue gas
desulfurization system" taught by Jankura since Jankura’s PH
monitoring system is said to be equivalent to the Modified
Palmrose Analysis for the purpose of monitoring the oxidation
loss in the flue gas desulfurization system. See Answer, page
4.
5
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Last modified: November 3, 2007