| Patents for B01D 9 - Crystallisation (5,388) |
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| 06/14/1990 | CA2004892A1 Apparatus for continuously removing crystals from a mother liquor and for washing the crystals |
| 06/06/1990 | CN1042665A 真空结晶器 Vacuum crystallizer |
| 05/09/1990 | EP0366731A1 Supercooled liquid thermal generator and improved triggering device |
| 04/05/1990 | WO1990003208A1 Method of freezing and separation |
| 04/04/1990 | EP0360876A1 Freeze concentration system and method |
| 03/27/1990 | US4911847 Process for controlling the permeate composition in a rotary filtration device |
| 03/22/1990 | DE3831305A1 Process for the preparation of crystals from solutions, in particular salt solutions, such as for example potassium salt solutions, by cold crystallisation |
| 03/13/1990 | CA1266611A1 Device for concentrating solutions |
| 03/08/1990 | WO1990001978A1 Multistage fractional freezing for superpurifying crystallizable substances |
| 03/06/1990 | CA1266443A1 Filtration method and apparatus |
| 03/06/1990 | CA1266365A1 Use of surfactants in alumina precipitation in the bayer process |
| 02/28/1990 | CN1039972A Process and plant for the crystallization of an inorganic substance and crystals of sodium chloride |
| 02/14/1990 | EP0354433A2 Process for separating substances by cool chrystallization |
| 02/14/1990 | CN1039580A Method for recovering crystals from crystal-containing slurry |
| 02/06/1990 | US4898659 Multi-point cold solvent injection in scraped surface dewaxing chillers |
| 02/06/1990 | CA1265433A1 Solar salt crystallizer and process for producing salt |
| 01/31/1990 | EP0352847A1 Process and apparatus for the crystallization of a mineral substance |
| 01/31/1990 | CN1039187A Methods and apparatuses for conducting solid-liquid-vapor multiple phase transformation operations |
| 01/24/1990 | EP0179870B1 Separation of dispersed phase from continuous phase |
| 01/17/1990 | CN2051129U Tower liquid film crystallizing device with filling tube sheet |
| 01/10/1990 | EP0350460A2 Metallic activator for starting crystallization of saline solutions in heating devices |
| 01/10/1990 | CN1038590A Tower type liquid film crystallization device with filling tube and plate and its technique |
| 01/02/1990 | US4891236 From wine or grape juice |
| 01/02/1990 | US4891191 Countercurrent |
| 01/02/1990 | US4891190 Incrustation resistive crystallizer employing multifrequency vibrations |
| 12/26/1989 | US4889743 Method for continuous tartar separation |
| 12/14/1989 | WO1989011897A1 Silicon dioxide films on diamond |
| 12/05/1989 | US4885016 Accurate control of reflus ratio; recycling |
| 11/30/1989 | WO1989011323A1 Process for recovering crystals from slurry |
| 11/30/1989 | WO1989011319A1 Process for producing concentrates from aqueous liquids |
| 11/29/1989 | EP0343596A2 Container for freeze drying under sterile conditions |
| 11/29/1989 | EP0165992B1 Filtration method and apparatus |
| 11/28/1989 | US4883520 Separation, concentration, by flotation of ice cubes, upward through column |
| 11/23/1989 | EP0343040A1 Crystallization apparatus, especially for spacecraft |
| 11/16/1989 | DE3815324A1 Process for obtaining p-xylene having a purity of at least 99.5% |
| 11/02/1989 | WO1989010520A1 Supercooled liquid thermal generator and improved triggering device |
| 11/02/1989 | WO1989010175A1 Methods and apparatuses for conducting solid-liquid-vapor multiple phase transformation operations |
| 10/31/1989 | US4877886 Process for the production of alkylene carbonate |
| 10/31/1989 | US4877596 Heating molten silicon, establish temperature gradient by cooling bottom of vessel |
| 10/24/1989 | US4876013 Small volume rotary filter |
| 10/03/1989 | CA1262033A1 High efficiency column crystallizer |
| 09/27/1989 | EP0334578A2 A solvent de-waxing method involving multi-point cold solvent injection in scraped surface dewaxing chillers |
| 09/26/1989 | CA1260225A1 Process for distillation-crystallization of zinc carbonate |
| 08/17/1989 | DE3810181C1 Apparatus for the cold crystallisation of sugar massecuites of high purity |
| 08/09/1989 | EP0327368A2 Method for determining the compositional distribution of a crystalline copolymer |
| 08/08/1989 | US4854968 Method of preparing high-purity metal and rotary cooling member for use in apparatus therefor |
| 07/05/1989 | EP0323377A1 Purification apparatus for crystallizable products |
| 06/15/1989 | DE3740958A1 Method for thickening aqueous solutions |
| 06/07/1989 | CN1004425B Improved technology for metal refining by fractional crystallization |
| 06/06/1989 | CA1255073A1 Crystallization apparatus for metal stripping |
| 05/16/1989 | US4830836 Metal stripping system and an operation process therefor |
| 05/16/1989 | US4830645 Freeze concentration system and method |
| 05/03/1989 | DE3835965A1 Verfahren zum entsalzen von salzhaltigem wasser, insbesondere von grubenwasser A method of desalinating salt-containing water, especially mine water |
| 04/20/1989 | WO1989003364A1 Method of reforming soluble salts to effect purification and increase crystal size thereof |
| 04/12/1989 | EP0183793B1 Wet and dry distillative freezing process for separating mixtures and apparatuses for use therein |
| 04/11/1989 | US4819552 For removing tartar from wine or grape juice |
| 03/28/1989 | US4816079 Separation of nucleation and growth of nuclei |
| 03/07/1989 | US4810274 Useful in desalination, concentration, water reuse |
| 03/07/1989 | US4809519 Simultaneous vaporization and crystallization, rotating surfaces |
| 03/07/1989 | CA1250802A1 Protected trigger to controllably initiate crystallization |
| 03/01/1989 | EP0305316A2 Multi-stage purification unit process |
| 02/28/1989 | CA1250592A1 Preparation process of acrylamide crystals |
| 02/21/1989 | US4806318 Vertical, multistage, heaters in tower |
| 02/16/1989 | DE3826890A1 Method for influencing the degree of order of an inorganic or organic system by using the change, occurring in the area of action of a hollow pyramid, in the sub-region of the terrestial magnetic field otherwise prevailing there, and a hollow pyramid for carrying out the method and use of said pyramid for specific applications |
| 02/15/1989 | EP0303224A2 Crystallization device |
| 02/14/1989 | CA1250002A1 Recrystallization of bisphenol a by azeotropically drying the solvent |
| 02/07/1989 | US4803300 Crystallization; sterioisomers |
| 01/31/1989 | US4801436 Crystallizing apparatus |
| 01/26/1989 | WO1989000576A1 Azithromycin dihydrate |
| 01/18/1989 | EP0299597A2 Method and apparatus for removing tartrates or like impurities |
| 01/18/1989 | CN1030422A Azithromycin dihydrate |
| 01/17/1989 | US4798131 Method and apparatus for tartars separation |
| 01/11/1989 | EP0298650A2 Azithromycin dihydrate |
| 01/05/1989 | DE3721667A1 Process for preparing sodium sulphate |
| 01/04/1989 | EP0297647A1 Process for the production of alkylene carbonate |
| 01/03/1989 | US4795571 Purification of frozen crystal layers |
| 01/03/1989 | US4795568 Oxidative evaporation process and apparatus |
| 12/13/1988 | US4790942 Filtration method and apparatus |
| 12/13/1988 | CA1246326A1 Metal stripping system and an operation process therefor |
| 12/08/1988 | DE3717635A1 Process for separating an oil/water emulsion by freezing out the aqueous phase |
| 12/07/1988 | EP0293680A2 A method for the crystallization of fructose |
| 12/01/1988 | EP0256096A4 Primary refrigerant eutectic freezing (preuf) process. |
| 11/29/1988 | US4787985 Countercurrent process for chemicals, crystallization |
| 11/29/1988 | US4787970 Process and system for dewatering metal oxide sludge |
| 11/15/1988 | US4784766 Pressure crystallization equipment |
| 11/09/1988 | CN88100630A Process for prepering p-xylene of purity at seast 99.5% |
| 11/01/1988 | US4781899 Purification of crystallized solids made via continuous crystallization |
| 11/01/1988 | CA1243940A1 Salt harvester for harvesting salt in elongated solar salt crystallizer |
| 10/26/1988 | CN88101926A Use of surfactants in alumina precipitation in the bayer process |
| 10/12/1988 | EP0286034A1 Use of surfactants in Alumina precipitation in the Bayer process |
| 10/11/1988 | US4776961 Process for treating geothermal brine in two phase brine separators |
| 10/11/1988 | US4776177 Method of fluid component separation by crystallization, and crystallization separating apparatus |
| 10/06/1988 | DE3708709A1 Process for the purification of frozen-out crystal layers |
| 09/06/1988 | US4769139 Apparatus for production of crystallizable carbonaceous material |
| 08/25/1988 | DE3743015A1 Verfahren und vorrichtung zur kontinuierlichen kristallisation von fuellstoffmassen mittlerer und niedriger reinheit bei der zuckerraffinierung Method and apparatus for the continuous crystallization of fuellstoffmassen medium and low purity in the sugar refining |
| 08/24/1988 | EP0279439A2 Purification process for crystallized layers |
| 08/18/1988 | DE3703646A1 Verfahren zur gewinnung von p-xylol mit einer reinheit von mindestens 99,5 % A process for recovering p-xylene having a purity of at least 99.5% |
| 08/17/1988 | EP0278805A1 Process for the condensation of aluminium chloride |
| 08/11/1988 | WO1988005766A1 PROCESS FOR PRODUCING p-XYLOL WITH A PURITY OF AT LEAST 99.5 % |
| 08/10/1988 | EP0277660A2 Filtration method and apparatus |