Chemistry: fertilizers – Processes and products – Organic material-containing
Reexamination Certificate
2007-11-06
2007-11-06
Tsang, Cecilia (Department: 1609)
Chemistry: fertilizers
Processes and products
Organic material-containing
C071S047000, C071S049000, C504S113000
Reexamination Certificate
active
10795576
ABSTRACT:
The invention relates to a process for the production of plant growth stimulator from fly ash, comprising treating fly ash with effluent NOx gases in a reactor under agitation at a temperature in the range of 60 to 100 degree celsius, for a time period in the range of 2 to 5 hours and treating the resulting material with effluent ammonia gas in the same reactor under ambient conditions for time period in the range of 20 to 50 minutes.
REFERENCES:
patent: 4915920 (1990-04-01), Kobayashi
patent: 424260 (1935-02-01), None
Ghosh Swapan Kumar
Hazra Sushanta Kumar
Rao Sukuru Ramakrishna
Singh Gulab
Brooks Kristie L
Council of Scientific and Industrial Research
Ladas and Parry LLP
Tsang Cecilia
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