| Patents for B01D 9 - Crystallisation (5,388) |
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| 05/20/1992 | CN2104694U Cytstallizer for alum steel band |
| 05/20/1992 | CN1016685B Process for prepering p-xylene of purity at least 99.5% |
| 05/13/1992 | EP0484769A2 Improved process for crystallizing L-alpha-aspartyl-L-phenylalanine methyl ester from the solution |
| 05/13/1992 | EP0484443A1 Improvements in or relating to sugar production apparatus. |
| 04/23/1992 | DE4033868A1 Continually operating crystalliser - with extended maintenance intervals |
| 04/07/1992 | US5102544 Apparatus for continuously removing crystals from a mother liquor and for washing the crystals |
| 03/31/1992 | CA1298432C PROCESS FOR SEPARATION OF N-PROTECTED- .alpha. L-ASPARTYL- L-PHENYLALANINES |
| 03/25/1992 | CN2099601U Automatic circle type vacuum crystallizer |
| 03/12/1992 | WO1992004429A1 Process and device for separating undesired foreign substances from fluids with low or no electrical conductivity |
| 03/12/1992 | DE4041669C1 Continuous purificn. of chemical substances - comprises solidifying molten substance into tablets by passing under coolant nozzles and subjecting to hot gas stream to (sweat) tablets |
| 03/12/1992 | DE4028805A1 Verfahren und vorrichtung zum trennen von unerwuenschten begleitstoffen aus fluessigkeiten mit geringer oder ohne elektrische leitfaehigkeit Method and device for separating from unwanted accompanying substances from liquids with little or no electrical conductivity |
| 03/12/1992 | CA2091452A1 Process and device for separating undesired foreign substances from fluids with low or no electrical conductivity |
| 03/03/1992 | US5093001 Suction filtration with pressurization; blockage prevention efficiency, durability |
| 02/27/1992 | DE4033866C1 Multi-stage crystallisation plant - where suspension of molten liquor and crystallite is heated and crystallite is continuously removed via overflow to next unit, etc. |
| 02/25/1992 | US5090965 Process for the separation of substances by cooling crystallization |
| 02/12/1992 | CN1058588A Process for treating amides |
| 02/12/1992 | CN1058541A Self-circulating vacuum crystallizer |
| 02/12/1992 | CN1058540A Process and equipment for crystallising inorganic substance |
| 01/28/1992 | US5084187 Three phase separation process |
| 01/23/1992 | DE4120550A1 N,N-bis-2,2,6,6-tetra:methyl-4- piperidyl-alkane-di:amine(s) - prepd. by dissolving crude amine in ketone solvent and crystallising soln., for pure polymer light stabilisers |
| 01/14/1992 | US5080704 Solid-liquid-vapor multiple phase transformation process with coupled absorption-melting operations |
| 01/08/1992 | EP0464943A1 Process for treating amides |
| 12/23/1991 | WO1992000130A1 Method and apparatus for crystallizing a mineral substance |
| 12/18/1991 | EP0461930A1 A crystallization method to improve crystal structure and size |
| 12/17/1991 | US5072600 Wash column ice-pack bottom detection device |
| 11/27/1991 | EP0458403A2 Process for producing sodium chloride crystals |
| 11/27/1991 | CN1056564A Multiple effect absorption refrigeration processes and apparatuses for use therein |
| 11/26/1991 | US5068092 Salting out; regeneration of exhausted brines by solar evaporation |
| 11/21/1991 | EP0457717A1 Process for fractional crystallization |
| 11/12/1991 | US5064718 Precipitation in dipersant copolymer of acrylated polyether and acrylate monomer |
| 11/06/1991 | EP0455243A2 Draft tube, direct contact crystallizer |
| 11/05/1991 | US5062862 Process and apparatus for recovering a pure substance from a liquid mixture by crystallization |
| 10/29/1991 | US5061306 Multiple effect absorption refrigeration processes and apparatuses for use therein |
| 10/29/1991 | US5060483 Twin rinse columns for freeze concentration of rinsable concentrates |
| 10/23/1991 | EP0453375A1 Process and apparatus for the continuous production of sugar crystals |
| 10/23/1991 | EP0452331A1 Process and device for preventing crust formation in continuously operating sugar-crystallization equipment |
| 10/21/1991 | CA2040182A1 Process and plant for continuous productin of sugar crystals |
| 10/15/1991 | US5057290 Cooling without freezing, precipitation, separating crystals from supernatant, recycling supernatant; efficiency |
| 09/25/1991 | EP0389601A4 Multistage fractional freezing for superpurifying crystallizable substances |
| 09/18/1991 | EP0446381A1 Crystal refining apparatus |
| 09/05/1991 | WO1991013301A1 Absorption vapor pressure enhancement process and its applications in high level refrigeration and separation processes |
| 09/05/1991 | WO1991013300A1 Solid-liquid-vapor multiple phase transformation processes with coupled absorption-melting operations |
| 09/05/1991 | CA2079895A1 Absorption vapor pressure enhancement process and its applications in high level refrigeration and separation processes |
| 08/27/1991 | US5043496 Process for the treatment of heavy chlorination residues |
| 08/06/1991 | US5037463 Freeze concentration and precipitate removal system |
| 08/06/1991 | CA1287217C Improved metal purification process through fractured crystalisation |
| 07/31/1991 | CN1053413A Process and apparatus for treadment of brines and contaminated mineral salts or mixtures thereof |
| 07/17/1991 | EP0436763A1 Process for continuously producing a crystal magma |
| 07/17/1991 | EP0436589A1 Method of freezing and separation |
| 07/02/1991 | CA1285498C Pressure segregation equipment |
| 06/27/1991 | DE4040033A1 Impure crystals rising in twin-worm tower - exchange material with descending pure melt from separate upper container |
| 06/25/1991 | CA1285120C Apparatus and process for separating solid particles from a liquid suspension and/or for the purification or leaching of solid particles |
| 06/04/1991 | US5020588 Method and apparatus for simultaneous heat and mass transfer utilizing a plurality of gas streams |
| 05/29/1991 | CN1051711A Process for preparation of large grain ammonium sulfate |
| 05/16/1991 | WO1991006682A1 Process and device for preventing crust formation in continuously operating sugar-crystallization equipment |
| 05/02/1991 | EP0424999A1 Process for producing concentrated food liquids |
| 04/24/1991 | CN1050829A Parametric pump fractional crystallization method and pfc crystallizer |
| 04/24/1991 | CA2028298A1 Process for producing concentrated food liquids |
| 04/23/1991 | US5009861 Crystallization apparatus |
| 04/23/1991 | US5009796 Pump for washing, leaching or concentrating particles in a liquid, or to separate particles from the liquid or from each other |
| 04/18/1991 | WO1991004777A1 Crystal refining apparatus |
| 04/16/1991 | US5008204 Infrared spectroscopy or nuclear magnetic resonance analysis; fractional crystallization |
| 04/02/1991 | US5004860 Filter system |
| 04/02/1991 | US5003784 Apparatus and method of producing an ice slurry at the triple point of a solution |
| 03/28/1991 | DE4024770A1 Wiping crystal layer forming on cooled cylinder wall - by stiff resilient strips on radial arms between successive inclined cutters |
| 03/28/1991 | DE4024768A1 Angled blades detaching formed crystals from cylindrical column - are preceded by compacting rollers to increase prod. homogeneity |
| 03/20/1991 | EP0417686A2 Device for stabilizing wines prior to bottling |
| 03/20/1991 | EP0417190A1 Silicon dioxide films on diamond |
| 02/21/1991 | WO1991001785A1 Improvements in or relating to sugar production apparatus |
| 02/20/1991 | EP0258226B1 Trigger to activate aqueous salt solution for use in a heat pack and method of making the same |
| 01/22/1991 | CA1279281C Turbine cooling waxy oil |
| 01/09/1991 | EP0406424A1 Process for recovering crystals from slurry |
| 01/09/1991 | EP0179135B1 Separating a component which forms a dispersion in, or which is dissolved in, continuous liquid |
| 12/19/1990 | EP0403441A2 Process and device for the continuous enlargement of the pre-formed crystals of massecuites |
| 12/18/1990 | US4978509 Lamella settler crystallizer |
| 12/12/1990 | EP0366731A4 Supercooled liquid thermal generator and improved triggering device |
| 12/05/1990 | EP0400073A1 Methods and apparatuses for conducting solid-liquid-vapor multiple phase transformation operations |
| 11/07/1990 | EP0396395A2 Method and apparatus for simultaneous heat and mass transfer utilizing a plurality of gas streams |
| 11/06/1990 | CA1275889C2 Surfactant compositions in alumina precipitation in the bayer process |
| 10/31/1990 | EP0395243A2 Inorganic particles |
| 10/30/1990 | US4966978 Process for separating indole in refined form |
| 10/27/1990 | CA2015454A1 Inorganic particles |
| 10/24/1990 | EP0393963A2 Method and apparatus for cryogenic crystallization of fats |
| 10/17/1990 | EP0392589A1 Process for the treatment of heavy chlorination residues |
| 10/03/1990 | EP0389601A1 Multistage fractional freezing for superpurifying crystallizable substances. |
| 10/02/1990 | US4960572 Method and apparatus for crystallizing substances dissolved in a liquid at zero-gravity |
| 10/02/1990 | US4960525 Hydrocyclone for washing particles in liquid suspension |
| 09/20/1990 | WO1990010838A1 Vacuum freezing process and vapor processing unit |
| 09/11/1990 | US4956520 P-xylene separation and purification, crystallization, cooling, washing then melting |
| 09/06/1990 | DE3920999C1 Nitro:guanidine spherical crystals - obtd. by forming nucleating seeds and crystallising by agitated cascade process |
| 08/28/1990 | US4952224 Method and apparatus for cryogenic crystallization of fats |
| 08/14/1990 | US4948102 Method of preparing high-purity metal and rotary cooling member for use in apparatus therefor |
| 07/19/1990 | DE3901130A1 Process and apparatus for evaluating the ability of mixtures to be fractionated |
| 07/11/1990 | CN1043767A Water dissolving exploit technology for mining glauberite |
| 07/11/1990 | CN1008691B Method and apparatus for crystallization of griseofulvin grains |
| 07/11/1990 | CN1008690B Preparation process of acrylamide crystals |
| 07/03/1990 | US4938804 Supersaturated ethanol-water mixture |
| 06/26/1990 | US4936114 To purify |
| 06/26/1990 | CA1270855A1 Separation of p-fluoroaniline from the unsubstituted derivative |
| 06/20/1990 | EP0373720A1 Apparatus for continuously removing crystals from a mether liquor and for washing the crystals |