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Patent Searching and Data


Matches 1,601 - 1,650 out of 8,679

Document Document Title
WO/1999/000352A1
Dilute solutions of fermentation sales may be concentrated by extracting water using low-miscibility, low-molecular-weight secondary and tertiary amines, e.g. triethylamine (TEA), diisopropyl amine (DIA), N,N-diethylmethylamine (DEMA), a...  
WO/1998/058722A1
A process for the precipitation of a solute from a Dense Fluid Solvent in which a solution of the solute in a Dense Fluid Solvent is expanded under conditions such that the Dense Fluid Solvent passes from the Dense Fluid Solvent region o...  
WO1998037939A3  
WO/1998/056482A1
The present invention relates generally to the observation that pre-equilibration of an acidic organic cationic extractant with magnesium avoids the need for pH control in a solvent extraction circuit. According to various embodiments of...  
WO/1998/046991A1
A row of (n+m) powder containers which contain powder for chromatography and a row of (n+m) solvent containers which contain solvent for partition are arranged closely in parallel to each other. 0): A predetermined quantity of sample sol...  
WO/1998/045015A1
Disclosed is a process for the resolution of a mixture into at least one first fraction and one second fraction, the respective compositions of said fractions differing by at least one element. The process further comprises at least one ...  
WO/1998/045013A1
There is described a process for the extraction of at least one relatively polar component from a material which may be naturally occuring or a synthetic mixture, the process comprising the steps of: (a) contacting the material with a so...  
WO/1998/045014A1
The invention relates to a multiphase extractor comprising an extraction chamber (1) and a re-extraction chamber (2). The upper and lower parts of both chambers are connected to each other by junction canals (5). Said chambers are fitted...  
WO/1998/044003A1
Processes for extracting three sugars, fructose, sucrose, and glucose, from dates are disclosed. Pitted dates are frozen and subdivided into particles. The particles are contacted with a heated water solution (13) to extract the sugars f...  
WO/1998/043718A1
The invention relates to a method for exchanging materials between two liquid phases in two interconnected contact chambers by means of an exchange medium which is brought into contact with the liquid extraction phase in the first chambe...  
WO/1998/037939A2
Described is a triphase extraction column consisting of two chambers (1, 2) whose upper and lower parts are connected by overflows (3) and which are fitted with connection pieces (4, 5, 6, 7) for feeding and discharging a first and a sec...  
WO/1998/037941A1
The invention is a new process for simultaneous extraction of dispersed and dissolved hydrocarbon contaminants from water. The process is based on the principle of injecting natural hydrocarbon gas to the water feed stream under pressure...  
WO/1998/036839A1
An improved method and apparatus for extracting resin from plant material. Conventionally, plant resins, which are useful in many products, are extracted using chemical solvents, which may alter the extract, and may produce a byproduct o...  
WO/1998/033972A1
The present invention relates to a method of intensifying washing of pulp in various washing apparatuses. The method according to the invention is particularly well applicable in connection with a so-called DRUM DISPLACER$m(3) washer by ...  
WO/1998/032449A1
Process for extracting natural products through a high-pressure process using liquid solvants in the presence of supercritical fluids in a proportion lower than 50 %, at a pressure comprised between 50 and 500 bar, at a temperature lower...  
WO1998018535A3  
WO/1998/029404A1
3-[2-Dimethyl-8-(3-methyl-2-butenyl)benzopyran]-6-propenoic acid represented by chemical formula (I) and antitumor agents containing this compound and its salts as the active ingredient.  
WO/1998/028082A1
A process and system are disclosed for recovering mixed carotenoids from the alga $i(Dunaliella salina). The harvested cells are ruptured, typically by circulating the algal suspension at high pressure through a pump loop. The cells can ...  
WO/1998/028303A1
The present invention relates to pharmaceutical industry, to the sesquiterpere lactones and particularly, production of new antitumor preparation of natural origin lyophilized arglabin 1$g(b),10$g(b)-epoxy-13-dimethylamino-guaia-3(4)-en-...  
WO/1998/026850A1
Multi-phase extraction apparatus comprising two chambers forming a partition stage. Said chambers are connected by connection channels in their upper and lower portions. The upper portion of the first chamber is connected to the lower po...  
WO/1998/024518A1
A material contaminated with a solvent is treated with a hydrofluorocarbon to remove the contaminant. A preferred hydrofluorocarbon is tetrafluoroethane. Apparatus for carrying out the process is also described.  
WO/1998/025126A1
The invention concerns a method and a device for monitoring the oxidation of organic compounds present in an aqueous phase, characterised in that it consists in: a) extracting liquid-solid samples taken during oxidation of an aqueous sol...  
WO/1998/022395A1
A process is described whereby phenolics and other water soluble, organic materials are removed from certain aqueous refinery waste streams by an extraction process whereby the brine is contacted with a hydrocarbon solvent containing at ...  
WO/1998/018535A2
The invention provides a method of extracting extractive component from a fluid containing at least one extractive component (e.g. a polymer cement containing impurities), said method comprising: passing a first fluid containing at least...  
WO/1998/018744A1
The present invention concerns a method for separation of pyridine and/or pyridine derivatives from aqueous solutions by extraction with pressurized carbon dioxide. The invention is based on the insight that carbon dioxide is a weak acid...  
WO/1998/016288A1
The invention concerns a method and an installation for extracting inorganic and optionally organic compounds using a supercritical fluid such as CO�2? from a substance. The extracted compounds are in particular inorganic pollutants su...  
WO/1998/014776A1
The extraction column is provided with a practical and fast system for mounting, replacing and dismounting the elements of the shaft (2) of the upper decanter (18) and of the lower decanter (19). The intermediate parts (14) are mounted o...  
WO/1998/008584A1
A liquid/dense gas extraction column process providing intimate contact between a dense gas and a fluid feed containing a solute and operating in an enhanced solubility region provides solubility of a solute in the dense gas to be at lea...  
WO/1998/007492A1
Apparatus for separating solvent in a feed of solvent and deasphalted oil produced in a deasphalting process includes a feed line (1) for receiving the feed and constructed and arranged to produce a stream (10) of fluid containing superc...  
WO/1998/004754A1
A method of extracting metal and metalloid species from a solid or liquid substrate using a supercritical fluid solvent containing one or more chelating agents followed by back-extracting the metal and metalloid species from the metal an...  
WO/1998/003241A1
An installation for purifying particulate solids, especially a salt purification facility, comprises a vertically standing purification vessel (1) which has on top a fill aperture (10) for the solids to be purified, below an outlet apert...  
WO/1997/049637A1
A process for beneficiation of an electric arc furnace dust is disclosed. EAF dust (101) is briquetted with coal (60). The briquettes (64) are added to a furnace (12) along with a scrap metal charge (400). Zinc oxide fume (102) is driven...  
WO/1997/048467A1
A device, method, and system for phase separation of two materials is disclosed. The two materials to be separated are positioned in a separation cartridge or container (12, 62, 90, 100, 110, 120, 124, 128) and passed through a filter me...  
WO/1997/047707A1
The invention concerns a method of preparing low-sulphur aliphatic compounds from olefin-rich starting products contaminated with organic sulphur compounds, by liquid-liquid extraction with a morpholine-containing extraction liquid.  
WO/1997/044109A1
The invention features a device (100) for extracting organic compounds from a sample, coupled with a receptacle (1) containing a solvent and subjected to microwave heating. An elongated means bears at one end engaged in the receptacle (1...  
WO/1997/044499A1
A method is provided for the hydrometallurgical recovery of metal values from sources containing more than one metal of antimony, lead, copper, zinc, bismuth, tin, cadmium and other metals by leaching the metal containing source with a f...  
WO/1997/044135A1
A device (10) for producing fibrinogen including a platen (12) having a surface (112) configured for heat exchange with a container (100) is described. The container (100) adhered to the platen (12) by means of a vacuum and heat exchange...  
WO/1997/043023A1
A process for the recovery of nickel from a nickel containing ore in which the ore, particularly a laterite ore, is initially leached with an aqueous acid solution, after which the nickel is precipitated as nickel hydroxide by adding a h...  
WO/1997/041938A1
The method and apparatus according to the invention relate to conducting the dispersion of two phases, created in the mixing unit (1) of liquid-liquid extraction, from the mixing unit to the separation part (2), in which case the flow di...  
WO/1997/040902A1
A method and apparatus for the extraction of a solute from an aqueous feed solution into an aqueous stripping solution are describes, the method comprising the steps of providing a least one stream of each of said feed solutions (42) and...  
WO/1997/040901A1
The invention relates to a method for adjusting the boundary surface between the two mutually separable solutions in liquid-liquid extraction at the discharge end of the separation part and for preventing the aeration of the solutions wh...  
WO/1997/040900A1
The invention relates to a method for recirculating the heavier solution from the separation part of liquid-liquid extraction to the mixing unit of the same extraction step, so that part of the recirculated solution is returned to the mi...  
WO/1997/040899A1
The invention relates to a method for settling the dispersion formed in the mixing unit of liquid-liquid extraction, for controlling solution flows and for creating pure solutions in the separation part. According to the method, the flow...  
WO/1997/039814A2
Apparatus for carrying out a process between first and second immiscible fluids comprises channel means defining first and second primary flow paths (2, 4) for permitting fluid flow of the respective first and second fluids therethrough....  
WO/1997/039815A1
Apparatus for carrying out a process between first and second immiscible fluids, comprises first and second channels (2, 4) defining flow paths (24), for permitting fluid flow of respective first and second immiscible fluids therethrough...  
WO/1997/040081A1
The invention consists of a process for separating organic monomers or auxiliaries, which are used in synthesising organic polymers or take part in the polymerisation reaction, from the prepolymer resulting from the synthesis, in which t...  
WO/1997/039814A1
Apparatus for carrying out a process between first and second immiscible fluids comprises channel means defining first and second primary flow paths (2, 4) for permitting fluid flow of the respective first and second fluids therethrough....  
WO/1997/038771A1
This invention relates to a process for making shaped copper articles directly from a copper-bearing material wherein a copper bearing material (10) is contacted with an effective amount of an aqueous leaching solution (40) to form a cop...  
WO/1997/037742A1
The extraction of organic compounds from aqueous solutions of non-ionic surfactants is disclosed. The aqueous solution of non-ionic surfactants (which contains the organic compounds to be extracted) is intensively mixed with a liquid whi...  
WO/1997/038044A1
A method of cleaning or purifying elastomers and elastomeric articles which are intended for medical or pharmaceutical use which method comprises firstly performing a solvent extraction process on the elastomer or elastomeric article usi...  

Matches 1,601 - 1,650 out of 8,679