Abstract: A portable, self-contained system for producing nitric acid from a supply of electricity and water, incorporates a nitrogen generating unit including a cabinet enclosing a manifold defining a plurality of series connected air combustion chambers each having one electrode concentric within a restricting orifice defined by a second electrode. The unit also includes an air compressor for supplying air which spirals through each combustion chamber to rotate the arc within the orifice, and each combustion chamber is exposed for viewing through a corresponding lens. The system also incorporates a liquid fertilizer generator unit including a closed plastic tank containing water and a submersible pump which recirculates the water through an aspirator where nitrogen gas is introduced into the water and then through a long plastic absorption tube coiled within the tank. The compressor also supplies additional oxygen to the tank for further converting nitrous oxide to nitric acid.

Abstract: The invention relates to a process for the production of nitric oxides, which can be used for the production of nitric acid and for the production of fertilizers based on these, which process for the production of nitric oxides comprises establishing an electrical discharge, passing through the discharge a mixture comprising air and nitric oxide as seeding material, and recovering the produced nitric oxides. The invention further relates to a mobile and easily transportable system for effecting such process, which comprises at least one discharge device, means for supplying air to said discharge, means for supplying electricity and means for introducing nitric oxide as seeding material into the discharge zone.

Abstract: The present invention relates to a process for the preparation of nitrogen oxides (NO and NO.sub.2) by the reaction of nitrogen and oxygen in a plasma furnace.According to this process, a plasma of oxygen and nitrogen is introduced into the reaction chamber of the plasma furnace, whereof the internal surface of the walls is covered with a catalyst chosen from tungsten trioxide (WO.sub.3) and molybdenum trioxide (MoO.sub.3).

Abstract: Pressurized air is directed into a generally spherical combustion chamber to rotate an electrical arc within a circular aperture formed within an electrode element disposed within the center portion of the chamber. The air is directed through the aperture and the whirling arc to produce a nitrogen dioxide gas which is immediately aspirated into a recirculating flow of water. The water is directed through an elongated tube forming an absorption coil where the gas is absorbed into the water to form a dilute acid solution usable as a nitrate fertilizer.

Abstract: A method and apparatus for home production and application of fixed nitrogen fertilizer uses an arc discharge process to ionize nitrogen and oxygen and form nitrogen oxides. These nitrogen oxides are injected into water supplied by a garden hose to a yard or garden. The device is compact, economical and requires no raw materials except air to produce the fixed nitrogen. The device may operate on ordinary 60 cycles, 110 volt power.