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| Number | Title | Issue Date |
| 5156333 | Apparatus for producing fog A method of producing a breathable fog comprises (a) passing air through a dryer unit to remove moisture; (b) cooling the dried air to a temperature below 0° C.; and (c) inducing water vapor into the dried and cooled air to produce breathable fog.... | 10/20/1992 |
| 5135565 | Recovery of aluminum from dross using the plasma torch A process and apparatus for recovering aluminum from a solid dross containing the same comprising: (a) continuously introducing the dross and lime flux into an inert gas DC transferred arc plasma torch furnace, (b) heating the mixture to above the slag me... | 08/04/1992 |
| 5125937 | Reversible membrane plant A membrane gas separation apparatus, typically for separating air, includes a gas separation cell containing an array of membranes in the form of hollow fibres. The cell has a first gas port and a second gas port. Flow of gas to and from the ports is cont... | 06/30/1992 |
| 5076487 | Process for reflow soldering A method of joining components to a substrate by reflow soldering with non-rosin-based flux containing solder is disclosed comprising heating the solder in the presence of the components in a low oxidizing atmosphere.... | 12/31/1991 |
| 5058387 | Process to ultrapurify liquid nitrogen imported as back-up for nitrogen generating plants An improved nitrogen generator having a distillation column for separating oxygen and nitrogen, the column having a top and a bottom and a rising vapor stream and a descending liquid stream in countercurrent contact with each other, the improvement compri... | 10/22/1991 |
| 5014773 | Liquefied gas boilers An improved boiler for liquefied gases comprises at least one heat transfer surface having means for creating a falling film of liquefied gas from its upper to lower end and means to heat the surface above the temperature at which the liquefied gas boils ... | 05/14/1991 |
| 5015756 | Process for the production of nitriles An improved process is provided for the production of nitriles from hydrocarbons by reaction with an oxygen-containing gas comprising oxygen, air or a gas enriched in oxygen relative to air and ammonia in the presence of a suitable catalyst. In the proces... | 05/14/1991 |
| 5008414 | Process for the production of oxides An improved process is provided for the production of oxides from hydrocarbons by reaction with oxygen, air or a gas enriched in oxygen relative to air, preferably the latter in the presence of an oxidation catalyst. An alkane, e.g. propane, is converted ... | 04/16/1991 |
| 5008412 | Process for the production of oxides An improved process is provided for the production of oxides from alkanes by reaction with oxygen, air or a gas enriched in oxygen relative to an air in the presence of an oxidation catalyst. An alkane, e.g. propane, is converted to an alkene in a multist... | 04/16/1991 |
| 5000925 | Hydrogen and carbon dioxide coproduction apparatus Highly purified gaseous hydrogen and liquid carbon dioxide are produced from a steam reformer/shift converter by passing the effluent from the latter through a multibed hydrogen PSA unit followed by an uncoupled carbon dioxide PSA unit. The carbon dioxide... | 03/19/1991 |
| 4990632 | Process for the production of oxides An improved process is provided for the production of oxides from hydrocarbons by reaction with oxygen, air or a gas enriched in oxygen relative to air, preferably the latter, in the presence of an oxidation catalyst. An alkane, e.g. propane, is converted... | 02/05/1991 |
| 4987239 | Process for the production of anhydrides An improved process is provided for the production of anhydrides from hydrocarbons by reaction with an oxygen-containing gas comprising oxygen, air or a gas enriched in oxygen relative to air, in the presence of a suitable catalyst. In the process, a sele... | 01/22/1991 |
| 4969338 | Method and apparatus of producing carbon dioxide in high yields from low concentration carbon dioxide feeds A process for producing substantially pure liquid carbon dioxide from a carbon dioxide feed containing about 35 to about 98% by volume of carbon dioxide wherein a waste stream containing carbon dioxide is separated from contaminants in a pressure swing ad... | 11/13/1990 |
| 4968337 | Air separation An improved process and apparatus for separating air to form oxygen and nitrogen in at least one cryogenic distillation column is disclosed. Nitrogen vapor taken from the colunm is warmed in countercurrent flow to incoming air in a heat exchanger wherein ... | 11/06/1990 |
| 4966002 | Process and apparatus for producing nitrogen from air Process for the recovery of nitrogen from air in which gaseous air is compressed, cooled and optionally purified in a heat exchanger, and then distilled to obtain pure gaseous nitrogen overhead and an oxygen enriched liquid bottoms, wherein all of the bot... | 10/30/1990 |
| 4963339 | Hydrogen and carbon dioxide coproduction Highly purified gaseous hydrogen and liquid carbon dioxide are produced from a steam reformer/shift converter by passing the effluent from the latter through a multibed hydrogen PSA unit followed by an uncoupled carbon dioxide PSA unit. The carbon dioxide... | 10/16/1990 |
| 4952224 | Method and apparatus for cryogenic crystallization of fats A method and apparatus for converting liquid fats into solid particles for blending with dry feed ingredients comprises spraying atomized liquid fat into the upper portion of the mixing chamber while directing a plurality of fine jets of liquid nitrogen a... | 08/28/1990 |
| 4952223 | Method and apparatus of producing carbon dioxide in high yields from low concentration carbon dioxide feeds A process for producing substantially pure liquid carbon dioxide from a carbon dioxide feed containing about 35 to about 98% by volume of carbon dioxide wherein a waste stream containing carbon dioxide is separated from contaminants in a pressure swing ad... | 08/28/1990 |
| 4943650 | Process for the production of nitriles An improved process is provided for the production of nitriles and oxides from hydrocarbons by reaction with oxygen, air or a gas enriched in oxygen relative to air, preferably the latter, and ammonia where a nitrile is desired, in the presence of a suita... | 07/24/1990 |
