Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7922873 | Method and apparatus for desalinating water combined with power generation A method and apparatus for desalinating water combined with power generation, wherein a desalination system is used for desalinating coastal seawater and is operationally related to a power generation system, wherein such dual purpose cogeneration facility captures ... | 04/12/2011 |
| 7846303 | Multi-structure internal heat exchange type distillation tower The present invention provides a multi-structured internal heat exchange-type distillation column including at least an outermost heat exchange section, an intermediate section, and an innermost heat exchange section, in which the innermost heat exchange section is ... | 12/07/2010 |
| 7442348 | Sulfur-bearing residue treatment system A sulfur-bearing residue treatment system is provided for the recovery of valuable organic components and the reduction of capital costs and operating costs. The treatment system involves the use of a stripping vessel in conjunction with a heating apparatus. All ele... | 10/28/2008 |
| 7431805 | Method and apparatus for simultaneous heat and mass transfer utilizing a carrier-gas at various absolute pressures A method, system, and apparatuses for simultaneous heat and mass transfer utilizing a carrier-gas at various absolute pressures are described. A method may include: thermally coupling at least two continuous contacting apparatuses together; varying the pressure betw... | 10/07/2008 |
| 7416644 | Method and device for stripping ammonia from liquids The present invention provides a method and a system for stripping volatile compounds such as ammonia from liquids. Part of the ammonia is stripped from the liquid in a system having a shunt through which liquid such as e.g. fermented biomass can be diverted in the ... | 08/26/2008 |
| 7413634 | Distillation system A multiple effect distillation chamber includes a plurality of separate distilling chambers and a drain chamber at a downstream end of the distilling chambers. The drain chamber functions to create a vacuum to draw volatile gases and impurities collected at the end ... | 08/19/2008 |
| 7365982 | Liquid cooling device A liquid cooling device (10) includes a heat sink (12), a reservoir (14) containing liquid therein and distant from the heat sink, and a heat-transfer member. The heat-transfer member includes a heat-absorbing segment (162) contacting the... | 04/29/2008 |
| 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 |
| 7297236 | Ethanol distillation process A process arrangement for distilling fuel grade ethanol includes a fermentation portion, a distillation portion, a condensation and dehydration portion, a separation and drying portion and an evaporation portion. The fermentation portion produces beer. The distillat... | 11/20/2007 |
| 7297237 | Method and device for separation and concentration by evaporation of mixture with separation factor of approx. 1 By using a dephlegmator which conducts distillation concurrently with heat exchange within at least one distillation column, or a portion of one distillation column, of a distillation cascade, the quantity of liquid holdup within the distillation apparatus is reduce... | 11/20/2007 |
| 7284709 | System and method for hydronic space heating with electrical power generation This invention provides a system and method for cogeneration of electric power and building heat that efficiently interfaces a liquid-cooled electric power generator with a multi-zone forced hot water (hydronic) space heating system. The system and method utilizes a... | 10/23/2007 |
| 7261008 | Air sampler An air sampler having a fan; an air inlet tube; a main body having a cyclonic cup, a stripping column and a demister; and fluidic circuitry for inputting fluids to the main body and the air inlet tube, and for outputting fluids from the main body. Air flow through t... | 08/28/2007 |
| 7241365 | Material for a facility for the production of anhydrous formic acid The invention relates to an apparatus and a process for the preparation of anhydrous or substantially anhydrous formic acid. This apparatus is constructed partly or entirely of substantially zirconium-free materials. The extractant employed is a liquid of the genera... | 07/10/2007 |
| 7232504 | Apparatus and method for distilling waste liquids A distilling apparatus and method use a two step distillation and purification process for processing a waste liquid, such as an impure sulfuric acid solution, to form a highly concentrated sulfuric acid solution. First, the waste liquid is stored in a concentrating... | 06/19/2007 |
| 7150807 | Rotary evaporation with variable dosage metering Method and system for evaporating at least one substance. During at least one dosing phase (TG) a predefined or predefinable quantity of a product (M) which contains at least one substance to be evaporated is imported via a feed system (7, 14, 17, 33, 36) int... | 12/19/2006 |
| 7101463 | Condensation and recovery of oil from pyrolysis gas A system and process for the recovery of oil from the pyrolysis of material containing hydrocarbons such as shredded vehicle tires. The system utilizes a pair of sequentially positioned packed towers to recover at least 95% of the oil contained in the pyrolysis gase... | 09/05/2006 |
| 7087140 | Carbonizing waste processing apparatus A carbonizing waste processing apparatus is operable to rotate and heat a radiant tube for carbonizing waste therein so as to generate granular char and vapors from the waste, transfer waste into an upstream end of the tube, temporarily impede movement of the waste ... | 08/08/2006 |
| 7074369 | Method and apparatus for decoupled thermo-catalytic pollution control A new method for design and scale-up of thermocatalytic processes is disclosed. The method is based on optimizing process energetics by decoupling of the process energetics from the DRE for target contaminants. The technique is applicable to high temperature thermoc... | 07/11/2006 |
| 7041199 | Process and device for hydrolytically obtaining a carboxylic acid alcohol from the corresponding carboxylate A process and a device for the catalytic hydrolysis of a carboxylate, e.g., methyl acetate, ethyl acetate, i- or n-propyl acetate, i- or n-butyl acetate, allyl acetate and methyl formate, into the corresponding carboxylic acid and alcohol, by a combination of a pre-... | 05/09/2006 |
| 7041198 | Distillation system A distillation system is provided having an evaporation conduit and a condensing conduit connected by a transfer system for transferring distillate vapour from the evaporation conduit to the condensing conduit to condense the distillate. The evaporation and condensi... | 05/09/2006 |
| 7037411 | Apparatus and method for handling easily polymerizable substance, apparatus for extracting liquid from apparatus under reduced pressure, and process for producing easily polymerizable substance In an apparatus capable of distilling and refining an easily polymerizable substance, piping is performed so that when a strainer in action is switched to a backup strainer, the strainer can be switched after removing air in the backup strainer to replace air in the... | 05/02/2006 |
| 6998026 | Method for producing tertiary C-C-alkyl esters of (meth)acrylic acid A tert-C4–C8-alkyl (meth)acrylate is prepared by reacting (meth)acrylic acid with an olefin of the formula where R1 and R2, which may be i... | 02/14/2006 |
| 6946081 | Desalination system The invention provides methods and an apparatus for more efficiently and economically producing purified water from sea water or some other salty or brackish water source. The efficiency is derived from the co-location with a power plant or other thermal generating ... | 09/20/2005 |
| 6905576 | Method and system for producing silane This invention relates to a continuous process for the preparation of silane by catalytic disproportionation of trichlorosilane in a reactive/distillative reaction zone having a catalyst bed of catalytically active solid. ... | 06/14/2005 |
| 6835287 | Apparatus, method for enrichment of the heavy isotope oxygen and production method for heavy oxygen water An apparatus comprising first to third columns, wherein the outlet of a first column reboiler and the inlet of a second column condenser are connected by a first introduction conduit, and the outlet of a second distillation column reboiler and the inlet of a third c... | 12/28/2004 |
| 6833056 | Desalination method and desalination apparatus A desalination apparatus capable of obtaining fresh water stably at low cost by utilizing low-temperature waste, wherein the desalination apparatus including a heat exchanger 92 cooperating with an evaporation can 60 so as to subject a low-temperature ... | 12/21/2004 |
| 6802941 | Distiller employing cyclical evaporation-surface wetting A distillation unit (10) employs a rotary heat exchanger (32) forming a multiplicity of evaporation chambers (56) into which a liquid to be purified is sprayed for evaporation. Spray arms (58) spray at a steady rate into all of the evapor... | 10/12/2004 |
| 6623603 | Method and apparatus for water purification A method and apparatus for purifying water by using thermal and/or thermocatalytic processes. The method and apparatus are particularly useful for processing impure water to remove and/or deactivate toxic inorganic, organic, and/or biological species such... | 09/23/2003 |
| 6582564 | Distillation apparatus and distillation method A distillation apparatus includes a column body; a partition for dividing the interior of the column body; a first distillation section composed of an enriching section and an exhaust section; a second distillation section composed of an enriching section... | 06/24/2003 |
| 6514387 | Rectifying column for extractive distillation of close-boiling or azeotropic boiling mixtures The invention relates to a rectifying column for extractive distillation, comprising a column main section (204) and a raffinate section (205) above said main section, an evaporator (208) situated on the lower end of the column, an inlet (214) disposed be... | 02/04/2003 |
| 6413378 | Apparatus for separation and purification of saturated hydrocarbon and method for separation and purification An extractive distillation tower 4 supplied with a feedstock containing butadiene and a solvent and for distilling the feedstock to separate and purify the butadiene. The tower 4 includes sensors 32, 34 for detecting concentrations of specific impurities ... | 07/02/2002 |
| 6332958 | Methods and apparatus for removing residual monomers An apparatus and a method for removing residual monomers from a slurry containing a polyvinyl chloride. The apparatus has a cylindrical tower with plural perforated plates provided in a vertical direction in the tower, plural chambers formed on the perfor... | 12/25/2001 |
| 6309513 | Desalination of seawater by evaporation in a multi-stack array of vertical tube bundles, with waste heat A large and economical type of multi-stack vertical tube evaporator (MS-VTE) is disclosed having units of multiple stacks of vertical tube bundles or stages mounted in a single vessel, and having its liquid feed pumped to the uppermost VTE bundle stack or... | 10/30/2001 |
| 6284104 | Apparatus and process for hydrogenations An apparatus for conducting reactive distillations comprising a first distillation column, a first primary catalyst bed for carrying out a hydrogenation of unsaturated compounds comprising diolefins. The first primary catalyst bed is positioned in the dis... | 09/04/2001 |
| 6171449 | Cascade reboiling of ethylbenzene/styrene columns Apparatus and process are disclosed for the distillation separation of styrene monomer from ethylbenzene utilizing a split feed to two distillation columns in conjunction with cascade reboiling utilizing thermal energy from the overhead of one column to s... | 01/09/2001 |
| 6159344 | Reaction and distillation device The invention relates to a distillation and reaction device having a reaction section and a distillation-reaction section. The distillation-reaction section has a distillation zone with at least one device for circulation of the effluent from the reaction... | 12/12/2000 |
| 6022453 | Apparatus for the distillation of oil-seed extracts A compact apparatus of the distillation of solvent from a mixture of the solvent with oil seed for the extraction thereof according to the invention, the primary module includes a vapor scrubber forming a vapor contactor, a main evaporator and a first con... | 02/08/2000 |
| 5964986 | Distillation plant A distillation plant contains a column with packings as well as a vaporizer. The elements of the column are arranged along a vertical axis and assembled as a constructional unit. They are executed in such a manner that a slight pressure drop sets in durin... | 10/12/1999 |
| 5935388 | Distillation plant with a heat pump A distillation plant includes a heat pump whose working fluid is compressed by a vapor jet compressor. A collection location for a liquid is arranged in the stripper part of a distillation column of the plant. At least a portion of the collected liquid is... | 08/10/1999 |
| 5723026 | Process for recovering pure benzene and pure toluene from aromatic hydrocarbon products The production of high purity benzene and high purity toluene is obtained by utilizing the initial gas separating column for the treatment of the aromatic containing starting material as a separating column for separating a benzene rich from a toluene ric... | 03/03/1998 |
