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AT184922D1955-03-041953-11-20
Process for the recovery of the bound nitrogen from the end gases of the acidic absorption of a nitric acid plant
AT184922B
(en)
Process for the removal of impurities consisting of sulfur compounds, in particular sulfur oxides, from a normally gaseous botrihalide, in particular boron trifluoride
Process for recovering the nitric acid contained in the exhaust gases of the condenser of a nitric acid concentration system or a bleaching device for concentrated nitric acid