The influence of temperature (75-100°C), ammonia concentration in solution (1-5%), and oxygen pressure (1-8 MPa) on the yield of the target product (insoluble residue) and nitrogen content in this product in treatment of pine bark with oxygen in aqueous ammonia (oxidative ammonolysis) was studied. The resulting samples were tested in agriculture as nitrogen-containing fertilizers.
Russian Journal of Applied Chemistry – Springer Journals
Published: Oct 13, 2004
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