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WO/2007/104804A2 |
A method for separating and/or purifying crystallisable organic compounds by crystallisation and dissolution has the following steps: (j) depositing the composition in the head of a separation and/or crystallisation column; (k) crystalli...
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WO/2007/094467A1 |
The object is to provide a method for production of an NVP having excellent storage stability. Disclosed is a method for production of N-vinyl-2-pyrrolidone which includes a N-vinyl-2-pyrrolidone purification process comprising at least ...
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WO/2007/088689A1 |
A process for the recovery of bisphenol A from an isomerization fluid which comprises feeding in the presence of phenol an isomerization fluid formed in step (D) into a crystallizer which is equipped with an external jacket and has the f...
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WO/2007/088981A1 |
Before a crystallization step in which a carboxylic acid is crystallized from a carboxylic-acid-containing liquid in crystallization tanks (12) and (13) each having a cooling surface, a preliminary step is conducted in which at least par...
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WO/2007/086735A1 |
The present invention concerns a method for the controlled precipitation of organic compounds giving crystals with a very small average size and a very narrow size distribution.
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WO/2007/082766A1 |
The invention provides operating the dry or solvent fractionation of oils and fats in a crystalliser comprising a crystallisation vessel (1,2), an agitator, cooling means and a drive, wherein said drive provides said agitator with an osc...
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WO/2007/074061A1 |
Alkoxides are obtained by crystallizing an alkoxide from a solution in the corresponding alcohol, wherein the alcohol is crystallized out at a pressure of at least 3 bar abs. and a temperature of at least 120°C.
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WO/2007/055129A1 |
A method of purifying episesamin capable of obtaining an episesamin-rich composition having a high content of episesamin by bringing a mixture of sesamins containing sesamin, episesamin and the like into contact with an aqueous medium th...
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WO/2007/053536A2 |
Multi-component crystals (co-crystals) are prepared by combining co-crystal components in non-stoichiometric concentrations in solution. The solubility of the molecular complex in the solvent is reduced, increasing the probability that t...
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WO/2007/052787A1 |
A cleaning method for separating and highly purifying a natural crystalline or amorphous substance which is a non-electrolyte or weak electrolyte from a slurry comprising the crystalline or amorphous substance and a mother liquor having ...
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WO/2007/049707A1 |
Glycolic acid having a high purity is obtained by subjecting glycolic acid or a glycolic acid solution containing impurities to double-chamber electrodialysis combined with one or more treatments selected from among activated carbon trea...
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WO/2007/046325A1 |
The invention provides a method for the disposal of chlorine-containing waste which can separate and recover chlorine components from chlorine-containing waste and which attains high chlorine removal efficiency, formation of high-purity ...
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WO/2007/037304A1 |
Microcrystallization system (100) includes microcrystallization apparatus (10) and one or more slender containers (1) for accommodating of a sample containing compound (C) and solvent (L). The microcrystallization apparatus includes heat...
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WO/2007/036949A1 |
The process of the invention deals with significant improvements in salt purity and whiteness brought about through treatment of brine with alum prior to charging into crystallizers for solar salt production. The improvements realized ar...
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WO/2007/037385A1 |
It is intended to provide a method and an apparatus for producing a composition containing episesamin at a concentration exceeding 50% by weight based on the total weight of sesamin and episesamin simply and in high yield. The method for...
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WO/2007/038524A2 |
Methods for preparing cocrystals wherein solutions of active agents in suitable liquids are combined with solutions of guests, both with and without suitable liquids, in an interface region are described herein. Methods for analyzing the...
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WO/2007/034812A1 |
Disclosed are a carrier for use for separation purpose and a method for separation of a compound which enable a chemical reaction to be performed in a liquid phase, enable a compound of interest to be separated from the liquid phase afte...
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WO/2007/034825A1 |
The invention provides a solid-liquid separation method attaining high solid-liquid separation efficiency and a solid-liquid separator, more specifically, a solid-liquid separation method characterized in that in the step of removing a l...
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WO/2007/025648A1 |
The invention relates to a specific method for determining a degree of saturation of a to be analyzed solution or suspension (12) of a substance dissolved in a solvent at a specific or specifiable temperature (T) and to a corresponding d...
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WO/2007/023109A1 |
The invention relates to a method for producing enriched isopulegol by crystallizing the same out of a melt containing isopulegol. The invention particularly relates to a method for producing enantiomer-enriched n-isopulegol by means of ...
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WO/2007/018203A1 |
Disclosed is a method for producing a high-purity caustic potash with a comparatively simple process, which satisfies recent demands for caustic potash of higher purity. Specifically disclosed is a method for producing a high-purity caus...
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WO/2007/012214A1 |
This invention relates to a method and a device for purifying and/ or separating preferably high melting organic raw products or compound mixtures containing, in particular, high melting and/ or degradable sterols, by layer crystallisati...
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WO/2006/137447A1 |
Disclosed is a stable and highly pure crystal of a protected pseudouridine represented by the structural formula below, which is useful as a raw material for an RNA oligomer or the like: (wherein M represents a trityl group or a derivati...
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WO/2006/124152A2 |
Applying a strong static DC electric field to supersaturated aqueous glycine solutions resulted in the nucleation of the Y polymorph attributed to the electric-field induced orientation of the highly polar glycine molecules in large pree...
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WO/2006/119707A1 |
A high throughput detecting system and method thereof, comprises several sample channels and one or more detecting devices, which could detect simultaneously or almost simultaneously several fluid samples, then obtain information about t...
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WO/2006/112188A1 |
[PROBLEMS] To provide a method and apparatus for the crystallization of an organic compound through adiabatic cooling, which can attain a reduction in operation and equipment cost. [MEANS FOR SOLVING PROBLEMS] Crystal tanks (20A) and (20...
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WO/2006/112187A1 |
[PROBLEMS] To provide a method and apparatus for the crystallization of an organic compound through adiabatic cooling, which can attain a reduction in operation and equipment cost. [MEANS FOR SOLVING PROBLEMS] In a crystal tank (20), an ...
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WO/2006/112185A1 |
[PROBLEMS] To provide a method and apparatus for the crystallization of an organic compound through adiabatic cooling, which can attain a reduction in operation and equipment cost. [MEANS FOR SOLVING PROBLEMS] In a crystal tank (20), an ...
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WO/2006/112186A1 |
[PROBLEMS] To provide a method and apparatus for the crystallization of an organic compound through adiabatic cooling, which can attain a reduction in operation and equipment cost. [MEANS FOR SOLVING PROBLEMS] In a crystal tank (20), an ...
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WO/2006/108572A2 |
There are provided crystalline particles of unsolvated Form 1 polymorph of the compound of formula (I), characterised in that the particles are in the form of substantially triangular plates.
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WO/2006/104166A1 |
A support for crystallization separation which is a compound reversibly changing from a liquid-phase state to a solid-phase state with changing solution composition and/or solution temperature. The support for crystallization separation ...
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WO/2006/087585A1 |
A duct (10) for use in an ultrasonic treatment plant is made from a cylindrical steel pipe (12) by plating the bore with a corrosion-resistant metal layer (14). This is preferably done by honing the bore to ensure that it is circular, pl...
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WO/2006/082341A1 |
The invention concerns a crystallization method and a crystallization device therefor. The method is characterized in that it consists in circulating the crystal-loaded liquid (L), under controlled supersaturation conditions, successivel...
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WO/2006/078012A1 |
A system for separating crystals from a sludge or water separated from a sludge through a concentration or dehydration treatment. It is satisfactory in both of phosphorus removal and recovery, and MAP having a satisfactory purity is reco...
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WO/2006/068004A1 |
A method of recovering a water-soluble organic substance which is an organic substance readily soluble in water, e.g., an alcohol or a ketone, which comprises: a first step in which raw water containing a water-soluble organic substance ...
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WO/2006/067360A1 |
Disclosed is a process for preparing a granular detergent composition or component having a bulk density of at least 500 g/l. The process disclosed herein comprises the steps of (i) providing an aqueous solution of a surfactant (ii) addi...
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WO/2006/061188A1 |
The invention relates to a method for purifying an ionic liquid, comprising the steps of (a) partially crystallizing the ionic liquid from its melt and (b) separating the crystalline crop from the remaining melt.
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WO/2006/035834A1 |
A method of treatment with reactional crystallization which comprises introducing a water to be treated into a fluidized bed in which seed crystals are present, contacting the raw water with the seed crystals in the fluidized bed to caus...
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WO/2006/030156A1 |
The invention relates to a method and device for treatment (1) by evaporation or by a membrane technique of (a) solution(s) of substance(s) with inverse solubility. Said method comprises the recycling (4) of a fraction of the treated sol...
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WO/2006/028074A1 |
A process for producing a finely particulate substance through crystallization. Fine particles having a narrow particle size distribution can be obtained by the process while inhibiting the fine particles from aggregating without the nee...
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WO/2006/025741A2 |
The present invention is directed to a crystallization process and apparatuses for such processes. In a first aspect, the process of the invention comprises a step wherein a liquid comprising a solvent and material dissolved therein, is ...
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WO/2006/021993A1 |
A method for producing an alkali metal hydrogencarbonate wherein an aqueous solution containing an alkali metal ion and carbon dioxide are reacted in a prescribed crystallization device to crystallize crystals of an alkali metal hydrogen...
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WO/2006/009441A2 |
The present invention concerns a method for the controlled precipitation of organic molecules which comprises the use of apparatus that is normally used in the field of photography.
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WO/2006/007426A2 |
An system for separating tritiated water from common water, using gravity and the freezing point of tritiated water to cause tritiated water to freeze along the inside of a conically-shaped collection chamber. The common water and liquid...
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WO/2006/003968A1 |
An apparatus for separating a concentrate and a suspended solid matter by freezing/thawing with which the concentrate can be easily produced. The apparatus has a simple structure especially due to the use of a cold heat medium and a warm...
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WO/2006/003474A1 |
A sugar coating is formed on a multiplicity of items (5) such as confectionery, using a suspension of crystal nuclei in a solution of sugar. This suspension is created by ultrasonic irradiation of a supersaturated solution. For example a...
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WO/2005/121028A1 |
An apparatus for removing phosphorus, which comprises (1) an electrolytic tank having an anode and a cathode and holding at least a wastewater containing phosphoric acid, (2) a conducting means for conducting electricity between the anod...
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WO/2005/105253A1 |
This invention relates to a process and/or method and associated apparatus for use in spray freeze drying a liquid substance such as fruit juice, pharmaceuticals, nutraceuticals, tea and coffee. A liquid substance is sprayed (atomised) a...
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WO/2005/102491A1 |
This invention relates to a process for removing solid matter from process liquids that are miscible with water. A brine made from water and dissolved salt and which is more dense than the process liquid is placed underneath and in conta...
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WO/2005/100287A1 |
A process for recovering paraxylene from a substantially hydrocarbon feedstock. The recovery comprises cooling the hydrocarbon feedstock in at least one refrigerated crystallization stage that is indirectly refrigerated by evaporating at...
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