Commercial Oxidation of Ammonia to Nitric Acid.
نویسندگان
چکیده
منابع مشابه
Perovskite membranes in ammonia oxidation: towards process intensification in nitric acid manufacture.
Ammonia is oxidized over PtRh alloy gauzes to form NO as the first step in the industrial production of nitric acid, a process that has remained practically unchanged for over 80 years. The reaction typically yields 94–96% NO and 4–6% by-products (N2O and N2) at 1073–1223 K. [1] Major drawbacks associated with the platinum-based catalysts are: 1) high production cost, 2) metal loss in the form ...
متن کاملThe Ammonia Oxidation Process for Nitric Acid Manufacture EARLY DEVELOPMENTS WITH PLATINUM CATALYSTS
It is little more than jifty years since the Jirst manufacture of nitric acid by the oxidation of ammonia over a platinum catalyst. Ostwald’s original industrial plant had an output of some 100 tons of acid a year; today the world capacity for nitric acid manufacture by this process is about ten million tons a year. This article traces the beginnings and early developments of the process until ...
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Motivated by recent experiments, we investigate how NO3-SWNT interactions become energetically favorable with varying oxidation state of a single-walled carbon nanotube (SWNT) using first-principles calculations. Chemisorption becomes less endothermic with respect to physisorption when the SWNT oxidation state is elevated. Importantly, the dissociative incorporation of an oxygen atom into the S...
متن کاملThe Conversion Kinetics of Tincal to Boric Acid in Nitric Acid Solutions
Pure borax and various boron compounds are produced from the solutions in which tincal is dissolved with various reagents. Economically important boron compounds such as boric acid, borax, boric oxide, and refined hydrated sodium borates and perborates are produced from boron-containing ores. The production of boric acid by using nitric acid from tincal is more advantageous because it evalu...
متن کاملModifications in the nitric acid oxidation of D-glucose.
The nitric acid oxidation of D-glucose was reinvestigated in an effort to better understand and improve the oxidation and subsequent work up steps. The oxidation was carried out using a computer controlled reactor employing a closed reaction flask under an atmosphere of oxygen which allowed for a catalytic oxidation process with oxygen as the terminal oxidant. Removal of nitric acid from produc...
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ژورنال
عنوان ژورنال: Journal of Industrial & Engineering Chemistry
سال: 1919
ISSN: 0095-9014,1943-2968
DOI: 10.1021/ie50114a012