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7540884 |
Method for performing the purifying separation of crystals out their suspension in a mother liquor
A process for purifying removal of crystals from their suspension in mother liquor by means of a washing column having forced transport in which the process chamber is encased by a metal wall...
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7510690 |
System for performing crystallization trials
A crystallization system is provided comprising a trial generation station configured to generate crystallization trials in trial zones of a crystallization plate; an imaging station configured to...
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7452419 |
Method for performing crystallization trials
A method is provided for operating a crystallization system comprising identifying a screen storage plate from among the plurality of screen storage plates stored in a screen storage station, each...
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7416710 |
Method and system for performing crystallization trials
A crystallization system is provided that comprises a screen replicator having a transfer mechanism configured to transfer portions of different screen solutions contained in a screen storage plate...
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7179435 |
Method and apparatus for recovering a pure substance from an impure solution by crystallization
The invention relates to an apparatus for the purification of a substance from a solution, a suspension or a mixture of liquids by crystallization, preferably in a continuous manner. The apparatus...
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7048898 |
Apparatus for preparing a fluid for a medical procedure
The invention provides an apparatus for preparing a fluid for a medical procedure by mixing of at least one medicament in the form of powder with water, the medicament is held in a vessel which...
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6454853 |
Process for the purification of organic products by fractionated crystallization at a variable circulation rate
The present invention pertains to a process for the purification of an organic product by fractionated crystallization, characterized in that the organic product is purified by circulation in...
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6267934 |
Process for the manufacture of persalt particles
The present invention relates to an apparatus for the continuous manufacture of solid particles of alkali metal persalts by reaction of an aqueous hydrogen peroxide solution with an aqueous...
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5338519 |
Process and apparatus for separating substances by crystallization
A process is provided for the separation of substances by melt crystallization. The organic mixtures which are difficult to crystallize are heated to a temperature sufficient to obtain a melt with...
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5296000 |
Process and equipment for crystallizing an inorganic substance
Process and installation for crystallising an inorganic substance in a fluidised bed of crystals (14), which is generated by subjecting a solution supersaturated in the substance to be crystallised...
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5292486 |
Crystal pulling method and apparatus for the practice thereof
A method and an apparatus are proposed for pulling crystals from the melt. The recharging of the melt (4) is performed such that the crucible (3) is raised and lowered with respect to the crystal...
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5234664 |
Device for pulling crystals
A pulling shaft carries a seed crystal holder and moves it vertically to pull a crystal upward from a melt in a crucible. The pulling shaft is rotated by a drive to cause the crystal to rotate...
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5213772 |
Apparatus for forming silver halide grains
An apparatus for forming silver halide grains comprises a reaction vessel for causing the nucleus formation and the crystal growth of silver halide grains. The apparatus further includes: a mixer...
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5124265 |
Method and apparatus for crystallization process control
A crystallizer control method and apparatus that generate control signals to manipulated process parameters on the basis of on-line information derived from the measurement of the crystal...
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4978509 |
Lamella settler crystallizer
A crystallizer which incorporates a lamella settler and which is particularly applicable for use in batteries and power cells for electric vehicles or stationary applications. The lamella settler...
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4801436 |
Crystallizing apparatus
An apparatus for growing free-floating, buoyant crystals to a predetermined size. Crystals having a positive buoyancy such as water crystals (ice) grow due to immersion in a stream of supercooled...
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4735781 |
Apparatus for concentrating a suspension
An apparatus for concentrating a suspension consisting of a hollow cylinder in which one or more tubes of a constant outward diameter extend in axial direction, in the wall of each tube at least...
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H000262 |
Method of and apparatus for removing silicon from a high temperature sodium coolant
A method of and system for removing silicon from a high temperature liquid sodium coolant system for a nuclear reactor. The sodium is cooled to a temperature below the silicon saturation...
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4597950 |
Gas separating-crystallizer
Apparatus and a method for separating gases and vapors from a geopressure or hydropressured brine without allowing precipitation of scale deposits on the walls of vessels and pipes. The apparatus...
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4590038 |
Fluidizing-cell column
To permit the output of a vertical fluidizing-cell column to be increased, its cross-sectional area to be enlarged, and the installation of plates in the column to be simplified, the plates are...
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4318772 |
Saturated liquor cooling tower
The invention is method and apparatus for removing dissolved solids from water by creating a condition of super-saturation of the solids material within a confined water circuit, propagating the...
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4312846 |
Method of silicon purification
A method for purifying silicon comprises the steps of providing a body of molten silicon-rich material in a vessel having an upwardly removable first bottom therein and extracting heat therefrom to...
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4291550 |
Fluidized bed crystallization apparatus and method
A method of crystallizing or freezing out a component of a mixture composed of a liquid and a dissolved or suspended solid material, or both, by passing the mixture upwardly through a column...
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4288285 |
Apparatus for forming a vortex
Apparatus for forming a vortex includes inner and outer wall structures. The inner wall has a downward flow passageway therewithin. A plurality of vanes are provided between the wall structures to...
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4245998 |
Method and apparatus for crystallization of solution containing salts
To remove salts from a solution containing the salts, hot air is injected downwards into the solution in a concentrator, and the solution is concentrated by direct contact with the hot air, thereby...
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4217330 |
Apparatus for production of sodium bicarbonate
Sodium bicarbonate is produced in an apparatus comprising a reactor system for the production of sodium bicarbonate which comprises a housing having a plurality of reaction zones being placed in...
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4174382 |
Process for the production of coarse K.sub.2 SO.sub.4 in crystallizers and classifiers
A process for selectively recovering coarse crystalline K 2 SO 4 from a crystallizer is disclosed. A classifier comprising an elongated cylindrical vessel which is located separate from the...
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4164429 |
Process and installation for the production of selected crystallization seeds for use in a sugar refinery
Process, centrifuge and installation for producing crystallization seeds, as for the sugar industry. A suspension of crystals produced from the seeded solution is subjected to a scheme of...
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4113552 |
Elutriation leg and method
The transfer of agitational forces from a main vessel to an elutriation leg connected thereto is effectively minimized with a slurry inlet and liquor outlet device mounted in the upper end of the...
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4056363 |
Apparatus for the fabrication of pure alumina from Al.sub.2 O.sub.3 and silica containing raw materials by leaching with hydrochloric acid
An apparatus for the production of pure alumina from alumina and silicate containing raw materials comprising means to feed said raw material into the top of an acid resistant leaching tower; means...
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4026676 |
Process for producing salt having a reduced calcium sulfate content
A process for preparing from aqueous NaCl brine containing appreciable quantities of dissolved calcium sulfate high purity dendritic salt, characterized by an exceptionally low calcium sulfate...
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3996018 |
Crystallization system and method using crystal fracturing external to a crystallization column
Crystals are grown in a column through which a supersaturated solution flows upwardly while large crystals having one dimension substantially greater than another dimension taken from the bottom of...
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3981739 |
Continuous crystallization
A crystallizable solute is crystallized from a solution containing the same by introducing a solution of said solute into a first stage evaporative-crystallization zone together with seed solute...
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3932142 |
Serial flow crystallization at linearly decreasing pressures
A process and apparatus for obtaining crystals of a particular substance from a flowing solution thereof, by supplying the seeding crystals to one n th portion of the saturated solution and...
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3883311 |
Reaction crystallizer
In a reaction crystallizer provided at the upper portion thereof with a suspension zone and at the lower portion thereof with a classification zone, the said suspension zone comprises an outer...
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3873275 |
Crystallization apparatus and method
A crystallization apparatus and method wherein both the size and amount of crystal particles withdrawn through a fines removal circuit from a slurry body, at least a portion of which is maintained...
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3870784 |
Sodium bicarbonate production
Coarse sodium bicarbonate crystals of controlled size are produced by spraying an aqueous mixture of soda ash and sodium bicarbonate into an atmosphere containing CO 2 in a carbonating zone;...
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3865922 |
Process for the preparation of crystalline calcium sulphate and phosphoric acid
Chemical reactions between ions yielding crystalline precipitates are carried out in a rotating disc contactor (RDC), in which an upward current is maintained which provides for a classification of...
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3802846 |
CRYSTALLIZER APPARATUS
Apparatus for the production of crystals from a liquid or for carrying out reactions in which precipitation of a by-product from a liquid occurs, comprises a substantially cylindrical reactor...
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3683018 |
INTEGRATED OXIDATION OF ISOMERIC XYLENE MIXTURE TO ISOMERIC PHTHALIC ACID MIXTURE AND SEPARATION OF MIXTURE OF ISOMERIC PHTHALIC ACIDS INTO INDIVIDUAL ISOMER PRODUCTS
Liquid phase oxidation of isomeric xylene mixture with molecular oxygen-containing gas (e.g. air or oxygen gas) in the presence of aqueous or acetic acid reaction media and catalysis provided by...
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3634044 |
GROWTH OF CRYSTALS AT A UNIFORM AND CONSTANT RATE
Disclosed is a method for growing crystals from solution wherein the rate of crystal growth is maintained uniform and constant. A holder for the crystal seed is constructed from material which has...
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3630685 |
METHOD FOR THE TRANSPORTATION OF CRYSTALS AND MELT
Crystals and melt are transported in a crystallization column in countercurrent and in temperature gradient by a rotatable spiral having a plurality of turns. The spiral is disposed within an...
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3628917 |
DEVICE FOR EVAPORATIVE CRYSTALLIZATION
A large size crystallizer has a separate vacuum evaporation chamber and a crystallizer tank. The crystallizer tank has fluid enter its bottom to flow upward past a flow distribution device and...
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3615246 |
STEADY STATE ETCHING SYSTEM
A steady state system for the etching of printed circuit boards is provided. A metal is removed from an etchant at the rate in which it is dissolved into the etchant and etching reagent consumed...
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3607113 |
CONTINUOUS PRECIPITATION OF ALUMINA HYDRATE
This invention relates to a process for the continuous precipitation of alumina hydrate from aluminate liquors. More particularly, the invention relates to an improved process for continuously...
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3531944 |
CRYSTALLISATION PROCESS
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3530924 |
CRYSTALLIZATION METHOD AND DEVICE
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3514263 |
FLUIDIZED BED CRYSTALLIZATION DEVICE
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3510266 |
PRODUCTION OF CRYSTALS IN A FLUIDIZED BED WITH ULTRASONIC VIBRATIONS
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3459509 |
CONTINUOUS CRYSTALLIZATION APPARATUS FOR EVEN GRAINS
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