|
Match
|
Document |
Document Title |
|
|
7527711 |
Process and structure for superaccelerating nature, producing a continuous supply of fresh water from salt water by using solar, wind, and wave energy
A continuous supply of fresh water achieved through desalinization by a system of Venturi shafts to increase the velocity and pressure of air flow allowing for increased condensation and processing...
|
|
|
7504005 |
Fluid distillation apparatus having improved efficiency
A condensing chamber and a heating chamber are arranged in an enclosure. Liquid is fed into the condensing chamber where it is pre-heated. The pre-heated liquid flows to the heating chamber where...
|
|
|
7501046 |
Solar distillation loop evaporation sleeve
An evaporation sleeve is placed within a solar distillation loop apparatus to increase the amount of water evaporated by the apparatus. The evaporation sleeve is rotationally attached within the...
|
|
|
7485208 |
Recycling of ionic liquids produced in extractive distillation
Process for working up a bottom stream wherein high boilers and ionic liquid from an extractive rectification in which the ionic liquid is used as entrainer. The process includes feeding the bottom...
|
|
|
7465376 |
Method and device for treating liquids
The invention provides for the removal of impurities from treatment fluid including a base liquid and a variety of impurities contained in the base liquid by conveying the treatment fluid to at...
|
|
|
7462263 |
Method for purifying hydrocyanic acid
A process for dewatering hydrocyanic acid by distillation, which includes distilling crude hydrocyanic acid containing from 50 to 99.9% by weight of HCN, from 0.1 to 40% by weight of water, from 0...
|
|
|
7435318 |
Ionic liquids as selective additives for separation of close-boiling or azeotropic mixtures
The invention relates to a process for separating close-boiling, homo- and heteroazeotropic mixtures by using ionic liquids. Due to the selectivity and unusual combination of properties of the...
|
|
|
7425247 |
Method for producing an aqueous solution hydroxylamine
This invention relates to a method for producing an aqueous solution of free hydroxylamine (HA) by simultaneous countercurrent treatment of a HA salt with ammonia or ammonia water, then separating...
|
|
|
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...
|
|
|
7351310 |
Rectificative separation of fluids comprising (meth) acrylic monomers
A process for rectificatively separating fluids including (meth)acrylic monomers in a rectification column by directly cooling the vapor including (meth)acrylic monomers rising to the top of the...
|
|
|
7347918 |
Energy efficient evaporation system
An evaporation system uses the weight of condensed liquid as an energy source. An inlet feed is introduced into an enclosure through an inlet. The inlet feed is vaporized in an evaporation region...
|
|
|
7300555 |
Method for the rectifying separation of liquids containing (meth)acrylic monomers in a rectification column
A process for rectificatively separating liquids containing (meth)acrylic monomers in a rectification column is provided, in which a stream is withdrawn from the rectification column and recycled...
|
|
|
7147757 |
Method for separating an azepine derivative out of a mixture containing an amine an azepine derivative
The invention relates to a method for separating by distillation a portion or the entirety of an azeptine derivative (III), which is selected from the group consisting of aminohexylidene imine,...
|
|
|
7128813 |
Process for manufacturing high purity methacrylic acid
A process for the high yield production of high purity glacial methacrylic acid (“HPMAA”) with minimization of decomposition of hydroxy isobutyric acid (HIBA). The HPMAA is substantially pure,...
|
|
|
7125475 |
Nitrosophenols and C-nitrosoanilines as polymerization inhibitors
Inhibitor blends that include both nitrosophenols and nitrosoanilines, optionally in combination with air or oxygen, reduce the premature polymerization of ethylenically unsaturated monomers....
|
|
|
7060865 |
Recovery of C4 olefins from a product stream comprising C4 olefins, dimethyl ether and C5+ hydrocarbons
Disclosed is a process for removing DME from a stream containing C4 olefins. The process includes providing a first stream comprising C4 olefins, C5+ hydrocarbons, DME, and methanol. The first...
|
|
|
7029556 |
Method for purifying (meth)acrylic monomers by distillation
The invention concerns a method of purifying a (meth) acrylic monomer selected among (meth) acrylic acids and their esters, by distillation in the presence of at least a polymerisation inhibitor...
|
|
|
6911121 |
Method and apparatus for simultaneous heat and mass transfer utilizing a carrier-gas
The present application is directed to a continuous contacting apparatus for separating a liquid component from a liquid mixture. The apparatus comprises: (i) an evaporation chamber ( 15 ) having...
|
|
|
6863779 |
Distillation of styrene
A process for the distillation of vinylaromatic monomers in the presence of 4-tert-butylcatechol (TBC) and oxygen, wherein no aromatic nitro or amino compound is present in any effective amount....
|
|
|
6821394 |
Process of extracting from haw-pit by dry distillation and its device
The present invention relates to a process of extracting haw pits by dry distillation and the device used therein. The process includes the following steps: removing the impurities of haw pits and...
|
|
|
6787001 |
Method for distilling (meth) acrylic acid solution
A method for distilling a raw material liquid containing (meth)acrylic acid substantially free from azeotropic solvents, collected with a collection agent from a mixed gas obtained by gas phase...
|
|
|
6699369 |
Apparatus and method for thermal desalination based on pressurized formation and evaporation of droplets
A method for removing dissolved solids, particularly salts, from water. An apparatus for performing the inventive method is disclosed. The aqueous solution to be treated, for example sea water, is...
|
|
|
6676808 |
Method for starting up distilling column
A method for starting up a distilling column destined to handle an easily polymerizing compound-containing solution characterized by supplying at the start of the operation of the distilling column...
|
|
|
6641700 |
Purifying apparatus possessing vapor dispersing device
A purifying apparatus characterized by being equipped with a vapor dispersing device possessing in a vapor inlet part owned by the apparatus on the lateral inside thereof an opening part facing...
|
|
|
6627047 |
Method for preventing polymerization in thin-film type evaporating device
A method is provided for preventing an easily polymerizable substance from being polymerized in a thin-film type evaporating device by supplying a solution of the substance to the evaporating...
|
|
|
6613196 |
Method for stopping purifying column
A method for stopping a purifying column handling an easily polymerizing compound-containing solution is disclosed, which method is characterized by lowering the inner oxygen concentration of the...
|
|
|
6585862 |
Apparatus and method for handling easily polymerizable compound
The present invention provides an apparatus for handling an easily polymerizable compound such as (meth)acrylic acid which includes a tubular member that is furnished to a side wall of the...
|
|
|
6565715 |
Land-based desalination using buoyant hydrate
Methods and apparatus for desalination of salt water (and purification of polluted water) are disclosed. Salt water is pumped to a desalination installation and down to the base of a desalination...
|
|
|
6540881 |
Method for refining (meth)acrylic acid
This invention relates to a method for preventing (meth)acrylic acid from polymerizing during the course of distillation. The method provides for refining (meth)acrylic acid by a procedure...
|
|
|
6494996 |
Process for removing water from aqueous methanol
A process for separating water from methanol in an aqueous methanol initial mixture, including subjecting said mixture to azeotropic distillation in the presence of sufficient added methyl acrylate...
|
|
|
6494995 |
Solar distillation system
A solar cell floats over a body of saline water. A submerged fresh water collection system underlies the cell. A partial vacuum is created in the solar cell for drawing water vapor from the cell to...
|
|
|
6468389 |
Undulating membrane surface for evaporative processes
An evaporative process employing an undulating flexible membrane ( 4 ) as an evaporative surface onto which a vaporizing gas ( 2 ) such as, but not limited to, air, contacts a liquid solution ( 1,...
|
|
|
6458249 |
Process for purifying perfluorinated products
Nitrogen trifluoride (NF 3 ) containing less than 10 parts-per-million molar impurities, e.g., tetrafluoromethane (PFC-14), is disclosed. Azeotropic and extractive distillation processes using...
|
|
|
6444096 |
Process for the recovery and purification of cyclobutanone
A process for the recovery and purification of cyclobutanone from a crude product mixture obtained from an oxidation product mixture resulting from the oxidation of cyclobutanol to cyclobutanone in...
|
|
|
6440275 |
Solar stills for producing fresh water
A solar still for producing fresh water including a device, adapted to absorb solar radiation and to contain water to be distilled; a condensation surface on which vapor, produced by heating up of...
|
|
|
6436245 |
Apparatus for the purification of organic compounds containing readily-blocking substances and process thereof
A purification tower for purifying liquid by contacting the liquid with gas, the purification tower including: (a) a shell; and (b) a plurality of baffles, each of which is fixed to an internal...
|
|
|
6432276 |
Method to separate ethanol from a solution containing sulfuric acid and ethanol
A method to separate ethanol from a solution containing sulfuric acid and ethanol which employs a vessel in which ethanol is humidified from a gas. By adding a gas to a solution containing sulfuric...
|
|
|
6413379 |
Continuous recovery of (meth)acrylic acid
A process for the continuous recovery of (meth)acrylic acid from a liquid starting mixture containing (meth)acrylic acid, a high-boiling organic solvent and low boilers, medium boilers and high...
|
|
|
6409888 |
Method and apparatus for water degasification and distillation
A method and apparatus for water degasification and distillation in an apparatus having a container for a reservoir of water to be degassed and distilled, a relatively small boiler adjoining the...
|
|
|
6409886 |
Process for inhibiting the polymerization of easily-polymerizable compounds
In distillation of easily polymerizable compounds such as (meth)acrylic acid and (meth)acrylic esters using a distillation unit, a liquid having substantially the same composition with that of a...
|
|
|
6398919 |
Extraction apparatus and method
Method for extracting an ingredient from plant, animal or mineral by heating water to create a vapor, contacting the ingredient under a state of decompression with the vapor, condensing the vapor...
|
|
|
6395140 |
Method for producing (meth)acrylic acid
In a process for the preparation of (meth)acrylic acid from a mixture which contains (meth)acrylic acid and a solvent having a boiling point above the boiling point of (meth)acrylic acid by...
|
|
|
6391162 |
Desalination apparatus and method of operating the same
A desalination apparatus and method utilizing solar energy provided with a solar heat collector for heating a heating medium with solar energy, a heat exchanger cooperating with an evaporation can...
|
|
|
6383342 |
Cluster rule compliance with reduced steam consumption
A method and system for handling foul condensate containing Hazardous Air Pollutants (HAPs) in a cellulose pulp mill has enhanced energy efficiency and lower cooling water usage, while complying...
|
|
|
6358373 |
Production of polyamides by reactive distillation
The preparation of polyamides, their oligomers or mixtures thereof, where appropriate with other reaction products, takes place by reacting amino nitrites (A) and, where appropriate, other...
|
|
|
6348137 |
Method and apparatus for fractional distillation
An apparatus and a method for separating a liquid mixture by fractional distillation. The apparatus includes at least two chambers with a conduit from the lower portion of a chamber which contains...
|
|
|
6348135 |
Process for the purification of (meth) acrylic acid and/or its ester
In a process for the purification of (meth)acrylic acid and/or its ester using a distillation unit containing a distillation column, a multitubular reboiler and a pipe connecting these elements, an...
|
|
|
6340414 |
Process for the recovery of perfluorinated sulphonic acids from spent acid
Process for the recovery of fluorinated sulphonic acid including the step of subjecting the spent acid to heat treatment with stepwise or continuously increasing temperature, withdrawing at least...
|
|
|
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...
|
|
|
6290820 |
Apparatus and method for concentrating a dilute solution
A method that employs a dilute solution, such as a dilute hydrogen peroxide solution, and concentrates the dilute solution to a yield a concentrated solution. A concentrated solution prepared by...
|