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Patent Searching and Data


Matches 601 - 650 out of 2,345

Document Document Title
WO/1991/013300
A Multiple Phase Transformation Absorption Melting Process (MPTAM Process) comprises a step of subjecting a feed solution to simultaneous vaporization and freezing operation, denoted as multiple phase transformation operation, to thereby...  
WO/1991/006682
In the horizontal-throughput sugar-crystallization equipment used in the process of the invention, the individual digester chambers are separated by partition walls whose upper edges extend into the vapour space, and the zones in which c...  
WO/1991/004777
A crystal refining apparatus of a vertical type, wherein a plurality of screw vanes are provided, the screw vanes have crystal refining tubes rotating in directions opposite to each other, and contained solid crystalline materials are re...  
WO/1991/001785
An evaporator in the form of a vacuum pan has partitions (38) providing a plurality of compartments (42, 46) between an inlet and outlet. The compartments increase in volume from the inlet to the outlet, each compartment having at least ...  
WO/1990/010838
A new vacuum freezing separation process entitled ''Vacuum Freezing Ambient Pressure Melting (VFAPM) Process'' and a new apparatus entitled ''Sub-Triple Point Vapor Processing Unit'' for generating and liquefying a sub-triple point vapor...  
WO/1990/003208
A method of freezing and separation for concentrating solutions, such as waste waters of the process industry, by means of waste heat of the same process, by freezing the solution in a crystallizer (10) operating at the triple point, by ...  
WO/1990/001978
A process and apparatus for superpurifying crystallizable substances to a purity level of 99.999 percent by a multistage freezing procedure comprising a melted crystal receiver stage (24a, 24b, 24c, 24d); a crystallization processor stag...  
WO/1989/011897
A method for producing oriented diamond films on a substrate. Diamond seed crystals are suspended in a slurry (1) and applied to the substrate surface (2). Heating (3) the substrate removes the slurry fluid and produces seed crystals who...  
WO/1989/011319
The aqueous liquid is conveyed through a pipe (3) by means of a longitudinal conveyor (4) in a continuous process during which it is first chilled in a cooling region (6) until the water turns to ice. The liquid containing the ice crysta...  
WO/1989/011323
The invention relates to a process for efficiently recovering crystals from slurry for a long time by feeding a slurry to a rotary vacuum filter, filtering with suction while rotating a cylindrical filtering member, washing and again fil...  
WO/1989/010175
The invention is a method with equipments for conducting the soli-liquid-vapor multiple phase transformation steps of vacuum freezing, wet distillative freezing, vacuum crystallization and primary refrigerant eutectic freezing. All proce...  
WO/1989/010520
A triggering device (15) for use in combination with a triggerable thermal energy storage medium (13) within a flexible cover (11). Triggering device (15) is a closed turn stiff helical metallic spring and of sufficient length to be forc...  
WO/1989/003364
A method of reducing soluble and insoluble impurity levels while increasing the size of water soluble salt crystals which includes an initial step of fine grinding followed by regrowth in a saturated solution of the salt subjected to agi...  
WO/1989/000576
Non-hygroscopic, azithromycin (9-deoxo-9a-aza-9a-methyl-9a-homoerythromycin) dihydrate and a process therefor.  
WO/1988/005766
This process uses a starting material with a minimum p-xylol content of 99 %. The starting material is introduced in the liquid state into an inert liquid, preferably water, the temperature of which is lower than the melting point of pur...  
WO/1988/004568
An apparatus (a) for purifying water by removing polluted clinging water from ice crystals, or (b) if desired, for concentrating fruit juices or the like. The complete apparatus includes a source (7 or 15) of small, individual pieces of ...  
WO/1988/001192
A method and apparatus for concentrating multicomponent liquid product containing volatile and non-volatile constituents, comprising mixing liquid product with liquid refrigerant gas (21) in a freezing chamber (3), removing ice crystals ...  
WO/1987/005095
A trigger (20) to activate a supercoolable aqueous salt solution (22) wherein the trigger and solution are encased within a flexible container (24). The trigger is a flexible relatively thin sheet of material wherein there are a pluralit...  
WO/1987/004778
The primary refrigerant eutectic freezing (PREUF) process is designed to separate mixtures containing at least one volatile component and two or more crystal-forming components (1). Heat is removed from a eutectic mixture at near its eut...  
WO/1987/001605
This invention, which can be industrially practiced, relates to a high-pressure crystallizer, which enables a pressure crystallization method using a pressure as a variable, and which is used to promote the industrial practicing of this ...  
WO/1986/006977
A process and device for multiple-phase processing of an aqueous liquid, in which a pre-cooled (151) aqueous liquid (38') is converted into frazil ice under triple point conditions, by injection into a condensation chamber (1) with a par...  
WO/1986/000025
A method of removing materials in solid form from solution in a solvent comprising the steps of collecting the solution in a deposition vessel, injecting directly into the solution in the vessel a liquid refrigerant material whereby the ...  
WO/1985/005284
Distillative freezing process is an energy conserving process for separating mixtures and superpurifying chemicals. The wet and dry distallative freezing process disclosed represents a major improvement to the distillative freezing techn...  
WO/1985/004819
Free excess charge which is net unipolar is introduced, preferably by charge injection, into the continuous phase. The charge transfers, through the continuous phase, to the dispersed phase and an induced electric field is thereby set up...  
WO/1985/004818
Particles/droplets/bubbles forming a dispersion in a continuous fluid can be increased in size by conglomeration induced by introducing free excess charge which is net unipolar (for example, by charge injection) into a body of the disper...  
WO/1985/002783
An improved method and apparatus for filtration includes an outer stationary body (10), an inner rotating body (12) defining a gap with the outer body for receiving a fluid sample (14), the surface of one of the bodies defining the gap b...  
WO/1985/002781
A process of washing a crystal-mother liquor mixture to produce a mass of purified crystals in a purification zone containing two sets of sub-zones, respectively denoted as Type A sub-zones and Type B sub-zones, that are laid sequentiall...  
WO/1984/001568
Process for obtaining aluminium trihydroxide, of mean diameter adjusted on demand in the interval from 2 to 100 microns, of unimodal distribution and of low dispersion, comprising the hot decomposition of an supersaturated solution of so...  
WO/1984/001569
Process for obtaining aluminium trihydroxide having a mean diameter controlled on demand, lower than 4 microns, of unimodal distribution and low dispersion, comprising the hot decomposition of a sodium aluminate supersaturated solution i...  
WO/1984/000117
An apparatus for concentrating a suspension consisting of a hollow cylinder (1) in which one or more tubes (2) of a constant outward diameter extend in axial direction, in the wall of each tube at least one filter (3) being mounted formi...  
WO/1984/000118
A method and apparatus for treating in counter current of suspended particles with a liquid, whereby the particles and the liquid are tranferred in opposite directions through a contact zone (1) which, at some places, spaced in axial dir...  
WO/1983/001010
An apparatus for and method of preparing a slurry for a purification apparatus such as a wash column. A slurry is produced in a crystallizer. The crystals are essentially removed from the concentrated mixture and transported to a more di...  
WO/1983/001011
A liquid purification system which removes impurities from liquids, such as salt from water. The system as depicted, for example, in Fig. 2, includes operationally interconnected vaporization means (22), condensing means (23) and heat ex...  
WO/1982/000417
An activator for initiating crystallisation of a supercooled salt solution comprises a thin trigger (14) of sheet metal having two configurations between which it is bendable with snap-displacement. The trigger (14) has multiple pin-hole...  
WO/1982/000459
The purification method of polluted water by dissolved materials which are separable through crystallization, consists in circulating the solution in a heat exchanger where the vaporization temperature is reached, in feeding the solution...  
WO/1981/003016
The essential feature of the process according to the invention lies in that solid crystalline matters, respectively precipitates are gained from the solution by means of chemical reactions, in such a manner, that at least one of the com...  
WO/1979/001052
A method for preventing fouling in apparatus used to separate a solvent from a solute which includes a semi-permeable membrane barrier is disclosed. The method comprises providing a quantity of nucleation crystals in the fluid stream pas...  
JP2014008457
To provide a crystallization method which allows crystal of a raw material to be obtained with high productivity from a liquid containing the raw material.In a crystallization method: a liquid (A) containing a raw material is indirectly ...  
JP2014008492
To provide an interface advancing freeze concentration apparatus and an interface advancing freeze concentration method which are capable of increasing yield of concentrated liquid and suppressing quality deterioration by preventing supe...  
JP2013220386
To provide a crystallization reaction apparatus and a crystallization reaction method capable of efficiently performing crystallization reaction even when the crystal concentration inside a crystallization reactor varies.A crystallizatio...  
JP2013180948
To provide a method and installation for inexpensively and continuously producing a coarse-grained ammonium sulfate product from an ammonium sulfate solution while maintaining a high production yield.In a method in which a crystallizer 1...  
JP2013141622
To provide a crystallization reactor recovering a hardly soluble salt at high recovery rate without increasing a supply amount of seed crystals.This crystallization reactor includes a crystallization reaction tank 10 having a crystalliza...  
JP2013139484
To provide a form-I crystallization compound of (-)-6-chloro-4-cyclopropylethynyl-4-trifluoromethyl-1,4-dihy dro-2H-3,1-benzoxazin-2-one; and to provide a method for obtaining the crystallization compound.The desired final crystal form, ...  
JP2013071097
To provide a crystallizer continuously operable, high in crystal production efficiency and obtaining fine and uniform crystals.The crystallizer includes a cylindrical container 2; a heat transfer cylinder body 4 provided in the container...  
JP2013056946
To provide a sugar recovery method.The present invention relates to a chromatographic separation process to recover high-purity mannose. This invention is based on the use of a chromatographic separation resin containing a resin that is ...  
JP2013022469
To provide a device and a method for refining an organic compound, allowing obtaining granulated crystal with high efficiency.A circulation flow path 20 for guiding a liquid material containing the organic compound introduced thereinto o...  
JP2013013851
To provide a sludge treatment apparatus that recovers phosphorus with highly efficiency after application of a crystallization method for recovering phosphorous in a reusable form as fertilizer, and at the same time, discharges dewatered...  
JP2012246263
To provide: a scraper unit with a structure to effectively suppress growth of a crystal layer on a cooling surface; a crystallizer of methacrylic acid with which elevation of a degree of supersaturation in a crystallization tank having t...  
JP2012228647
To provide continuous crystal purification equipment which has the same efficiency or is better than the conventional continuous crystal purification equipment and which has a wide application range while the structure is simpler and sti...  
JP2012223727
To provide a crystallizer with a simple structure which exhibits high classification performance in crystallization.A rotary blade means 5 for generating a swirl flow in a raw material liquid of suspended slurry in a vessel 2 along an in...  

Matches 601 - 650 out of 2,345