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| Number | Title | Issue Date |
| 7357849 | Method and system for separating solids from liquids A method and system for treating feedwater includes evaporating a portion of the feedwater in a first evaporation chamber so as to separate water vapor from the remaining feedwater. Droplets of the remaining feedwater are dispersed into a stream of hot air produced ... | 04/15/2008 |
| 7305850 | Distillation process using microchannel technology The disclosed invention relates to a process for distilling a fluid mixture in a microchannel distillation unit, the microchannel distillation unit comprising a plurality of microchannel distillation sections, the fluid mixture comprising a more volatile component a... | 12/11/2007 |
| 6887344 | Compact wastewater cleaning apparatus A compact, self-contained apparatus for treating wastewater containing as impurities and pollutants various non-volatile (at water boiling points) fluids such as greases, oils and soaps, a vessel for collecting the wastewater, a heating chamber including electric he... | 05/03/2005 |
| 6797124 | Solar distillation unit A solar distilling apparatus employs anthracite coal as a heat-absorbing medium. Greenhouse roof elements rest over a gutter that is isolated from the water-holding container to prevent deposit formation and algae growth from reaching the gutter. Bacterial growth is... | 09/28/2004 |
| 6258215 | System and a rotary vacuum distiller for water recovery from aqueous solutions, preferably from urine aboard spacecraft The system for the recovery of water from urine aboard spacecraft includes a urine intake and pretreatment unit, a unit for water reclamation from urine and a condensate purification unit. The unit for water reclamation from urine is made on the basis of ... | 07/10/2001 |
| 6117275 | Process and device for regenerating a contaminated solvent Process and apparatus for regenerating a contaminated solvent wherein said solvent is first separated from higher-boiling contaminants in an evaporator, and then contaminants having a lower boiling point than said solvent are separated out in a condenser ... | 09/12/2000 |
| 6099693 | Movable water distiller A movable water distiller capable of use in conjunction with a water heater includes a frame having a top which supports the water heater. The distiller components are supported on a tray having a guide assembly engaging a track assembly horizontally posi... | 08/08/2000 |
| 6080280 | Structure for refining glycol in a natural gas dehydration plant Contaminated glycol in a natural gas dehydration plant is refined by vacuum distillation. The equipment to perform the refining by vacuum distillation is mounted upon a trailer. The equipment on the trailer is connected by an inlet line to the dehydration... | 06/27/2000 |
| 5882486 | Glycol refining Contaminated glycol is refined by vacuum distillation. Specifically the evaporator is heated to a temperature below the degradation temperature of the glycol. The vacuum is used to bring the flashpoint down sufficiently so that glycol evaporates or flashe... | 03/16/1999 |
| 5846386 | On-site ammonia purification for semiconductor manufacture Highly purified ammonia for use in semiconductor manufacturing is prepared on-site by drawing ammonia vapor from a liquid ammonia reservoir, passing the vapor through a filter capable of filtering out particles of less than 0.005 micron in size, and scrub... | 12/08/1998 |
| 5808159 | Process and device for recovering amines and use of residues obtainable thereby The invention relates to a process for recovering amines from acid amine salt solutions by the addition of bases and evaporating the solution at a pH of 11 to 13 in a kneading drier until a useful solid is obtained as the distillation residue and a device... | 09/15/1998 |
| 5785820 | On-site manufacture of ultra-high-purity hydrofluoric acid for semiconductor processing A system for purification and generation of hydrofluoric acid on-site at a semiconductor device fabrication facility. An evaporation stage (optionally with arsenic oxidation) is followed by a fractionating column to remove most other impurities, an Ionic ... | 07/28/1998 |
| 5755934 | Point-of-use ammonia purification for electronic component manufacture Highly purified ammonia for use in processes for the production of high-precision electronic components is prepared on-site by drawing ammonia vapor from a liquid ammonia reservoir, passing the vapor through a filter capable of filtering out particles of ... | 05/26/1998 |
| 5665208 | Method and apparatus for the quantitative enrichment of volatile compounds by capillary distillation A quantitative enrichment of volatile compounds from substances of the macro- to submicro field in a short time is realized by capillary distillation in a system which includes an evaporator vessel, on the bottom of which one or more filter plates are pro... | 09/09/1997 |
| 5632864 | Splash shield for distillation unit A splash shield for the boiler of a distillation type water purification apparatus includes at least two grades of porous media which cooperatively inhibit bubble formation and splashing, thereby preventing transfer of contaminants from the boiler water t... | 05/27/1997 |
| 5614066 | Water distillation apparatus An apparatus for converting seawater or other contaminated water into pure water for reuse including: a source of the contaminated water; a first horizontal housing connected to the source of contaminated water and having a heat exchanger therein for vapo... | 03/25/1997 |
| 5595662 | Water purification device A water purification device comprises a compartment for holding a supply of impure water; a purified water collection zone; and a dense hydrophilic membrane between the compartment and the purified water collection zone. The membrane is capable of functio... | 01/21/1997 |
| 5445731 | Pervaporation vessel Apparatus for breaking or separating a liquid mixture or emulsion having two or more components. The apparatus includes a closed vessel having one or more sequentially connected filtering compartments holding a filtering element such as a membrane assembl... | 08/29/1995 |
| 5372680 | Plant for processing vegetal stock A plant for processing vegetal stock includes a container mounted on a twheel trailer, and provided with bubblers for live steam which are arranged under a net for accommodation of the vegetal stock, and a detachable cover communicating through a steam p... | 12/13/1994 |
| 5300197 | Distillation apparatus with porous membrane and heat pump A distillation apparatus includes a distillation unit for distilling feed water. The distillation unit includes an evaporation part, a condensation part and a hydrophobic porous membrane interposed between the evaporation part and the condensation part, w... | 04/05/1994 |
| 5281309 | Portable water purification system A water purification device mounted within a housing adapted to be positioned on an existing water cooler/dispenser has a valve control member extending from the base of the housing and is positionable within the water reservoir of the dispenser to contro... | 01/25/1994 |
| 5248393 | Solvent reprocessing system A compact solvent reprocessing system for use in a limited physical area. Solvents to be reprocessed is contacted by deionized water in a water wash column and delivered to a distillation column where waste solvent is separated from materials that boil at... | 09/28/1993 |
| 5232085 | Distillation system with a hydrophobic porous membrane A distillation system has a degassing tank, a distiller for generating vapor of raw water taken from the degassing tank, a heater for heating the vapor from the distiller to convert the vapor into a high temperature and pressure vapor, a hydrophobic porou... | 08/03/1993 |
| 5211816 | Vacuum distillation apparatus for removal of volatile impurities from liquids A low temperature vacuum distillation apparatus. The distillation apparatus includes an evaporation section and a condensation section. Fluid flow throughout the system is assisted by an appropriate pump, and heat exchangers, one in each of the evaporatio... | 05/18/1993 |
| 5160413 | Micro-distillation process for cyanide Micro-distillation apparatus is provided for analyzing acidic anions in which the acidic anion sample is placed in a lower elongated member in water containing an acidifying material, upon heating the acidic anion leaves the lower member as a gas, passing... | 11/03/1992 |
| 5135611 | Method and apparatus for combined spray drying and gas cleaning A combined spray dryer and gas filter vessel in which a solution containing sulphuric acid and solids, and a hot drying gas, are introduced vertically through the top of the vessel into a spray zone. Solids are removed at a single point at the bottom of t... | 08/04/1992 |
| 5102504 | Device for solvent recovery in an ultrasonic cleaning device A device for solvent recovery in an ultrasonic cleaning machine is based on utilization of the negative pressure originating from the liquification of the solvent vapor itself in a heat exchanger and the negative pressure from an ejector. Thus, the solven... | 04/07/1992 |
| 5032230 | Vacuum draft submerged combustion separation system A vacuum draft submerged combustion system and method for separating combustible hydrocarbons and other components or liquid solutions from their solvents, usually water, includes evaporating volatile components by a submerged combustion burner and conden... | 07/16/1991 |
| 5028298 | Waste water concentrator and waste water disposal plant The present invention relates to a technique of concentrating waste water whereby the water content of the waste water is removed with a high decontamination factor, employs a porous membrane having a property allowing gas such as steam to permeate but no... | 07/02/1991 |
| 5022967 | Microdistillation apparatus A microdistillation column for the quantitative steam distillation of cyanide, phenolic compounds, hydrogen fluoride, ammonia, sulfites and other volatile analyte compounds from samples of environmental waters and sludge for their subsequent analysis invo... | 06/11/1991 |
| 4953694 | Distilling apparatus A distilling apparatus includes an evaporation section which heats raw water and causes the generation of vapor from said raw water, and a hydrophobic porous film through which the thus generated vapor is filtered. Because vapor separated from the raw wat... | 09/04/1990 |
| 4895176 | Chloro-fluoro-carbon cleaning apparatus This invention relates to a cleaning apparatus for cleaning workpieces such as semiconductors and other electronic devices by using chloro-fluoro-carbon solvent such as R113. Chloro-fluoro-carbon vapor is drawn from a lateral position of a layer of chloro... | 01/23/1990 |
| 4885099 | Closed system solvent stripping and reclaiming apparatus A closed circuit solvent stripping and reclaiming apparatus for recovering solvent from filters used in dry cleaning machines comprising a steam cabinet (2), and condenser (3), a water solvent separator (4), a recirculating tank (5), a blower (6) and a ca... | 12/05/1989 |
| 4882012 | Water distiller A water distiller includes an inner vessel in which source water is heated, an outer dome or housing on the inner surface of which the vapor from the inner vessel is condensed and a reservoir for receiving the condensate. The inner vessel includes a closu... | 11/21/1989 |
| 4741803 | Spray dryer and operating method therefor A spray dryer consisting of a tower-like drying container with spraying elements for introducing therein the material to be dried, pipelines and heater for injecting a heated drying gas, and a separator for separating dry fine material and gas. The dry fi... | 05/03/1988 |
| 4687547 | Process for the separation of materials obtained by means of high pressure extraction The present invention provides a process for the separation of materials obtained by means of high pressure extraction from an extraction agent, wherein extraction agent loaded with extracted material is passed from below into a separator comprising a hea... | 08/18/1987 |
| 4686009 | Distillation system A vacuum distillation system uses a tower having an open bottom submerged within a tank of solution exposed to atmospheric pressure. The solution within the tower is elevated to barometric level by a high vacuum or low absolute pressure on the tower top. ... | 08/11/1987 |
| 4664752 | Desalination system An aqueous saline vapor is passed through a porous mass having a temperature no less than that of the vapor and subsequently condensed to provide substantially salt-free water.... | 05/12/1987 |
| 4657639 | Apparatus for electrostatic filtration of N2 O4 for removal of solid and vapor contaminants An electrostatic filtration apparatus is used to significantly reduce contaminants in N2 O4 vapor and liquid at ambient temperatures. The apparatus uses an electret vapor filter having therein a stack of layers of electret material t... | 04/14/1987 |
| 4608119 | Apparatus for concentrating aqueous solutions An apparatus for concentrating aqueous solutions of hygroscopic organic liquid having boiling points higher than the normal boiling point of water is disclosed. The apparatus includes an airtight evacuated chamber, means for injecting a preheated temperat... | 08/26/1986 |
