Patents for B03B 7 - Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage (2,362)
09/1993
09/01/1993EP0557916A2 Method for treating dust loaded filters
08/1993
08/31/1993US5240114 Process for reclaiming gravel, soil particles, and wood pieces from a mixture of the same
08/04/1993EP0553319A1 Method of separating a mixture of plastics comprising at least three components using electrostatic techniques.
06/1993
06/30/1993CN1073757A Production method of ash-removed high-concentration coal-water slurry
06/16/1993EP0546645A1 Process for the treatment of exhausted batteries
05/1993
05/12/1993CN1071857A Process for dressing titanic ore
04/1993
04/28/1993CN2130607Y Direct controlled grain selective separator
03/1993
03/23/1993CA1314843C Apparatus and process for reclaiming gravel, soil particles and wood pieces from a mixture of the same
03/04/1993WO1993003848A1 Method of separating a mixture of plastics comprising at least three components using electrostatic techniques
03/02/1993US5190158 Gold pan with classifier
12/1992
12/24/1992DE4120179A1 Excavation of tunnel by using shield - uses vibrating sieve and cyclone separator to separate solid material from liquid
12/09/1992CN2124071U Rack traction thickener
12/02/1992CN2123377U Wind tunnel sieve plate foam dust remover
09/1992
09/01/1992US5143224 Method and apparatus for separating diamonds from associated gangue
08/1992
08/05/1992CN2111790U Citrus gizzards and cores separator
06/1992
06/10/1992CN1061732A Clay ore wet dressing and preparation of colloid clay
06/02/1992CA1302349C Debris separator system
05/1992
05/13/1992CN1016586B Insitu hazardous waste treating apparatus and method of using same
05/05/1992US5110454 Apparatus for reclaiming gravel, soil particles and wood pieces from a mixture of the same
04/1992
04/22/1992CN1060500A Improved process for separating ilmenite
03/1992
03/03/1992CA1296673C Density classification of particulate materials by elutriation methods(improved)
03/01/1992WO1992004121A1 Process for separating ilmenite
01/1992
01/09/1992DE4020156A1 Cleaning contaminated broken ground or filling material - involves water storage and circulation system and sealed container mounted on chassis
01/01/1992CN2091718U Underwater gold extractor
12/1991
12/31/1991US5076702 Installation for extracting granular material in a predetermined composition, method using that installation, a mixing unit, and means of measuring the water content of granular material
12/27/1991EP0277170B1 Separation process
12/25/1991CN1057213A Process for dressing iron from low-rank iron pyrites roasted slag
12/18/1991CN2090730U Centrifugal screen classifier
12/04/1991CN1014960B Separation method of artificial diamond
11/1991
11/27/1991CN2089369U Machine for panning
10/1991
10/30/1991CN2087533U Sizing machine of citrus fruits
10/16/1991CN2086634U Placer gold panning and pulverizing unit
10/16/1991CN1055305A Collecting classification boat for sandstone, sand and method for collecting classification
10/09/1991EP0450738A2 A floating dredging apparatus for extracting sand and/or gravel and method using that apparatus
09/1991
09/17/1991US5049260 Blast cleaning wet media feed and separation system
08/1991
08/27/1991US5043059 Concentrator for beneficiating minerals
08/14/1991CN1053758A Magnetic-gravitative separation technology for fluorocarbon cerium ore
07/1991
07/10/1991CN2080425U Dual-purpose cycle shovel for screening machine
06/1991
06/19/1991CN1012882B Fine separator for enriching minerals
06/19/1991CN1012881B Fine separator for enriching minerals
05/1991
05/02/1991EP0425045A1 Process for treating spent batteries
05/01/1991CN1050995A High-capacity ore dressing machine using spiral shaking table with wave-vibration cyclone
03/1991
03/05/1991US4997551 Concentration for beneficiating minerals
02/1991
02/06/1991CN2070646U Separating machine for powder and starch
01/1991
01/02/1991CN2068423U Gold selector
12/1990
12/19/1990CN1010832B Pulsating high gradient magnetic separator with vertical ring
11/1990
11/28/1990CN2066357U Screen plate for ore-dressing cylindric screen of gold exploitation ship
11/22/1990DE3690783C2 Oxide copper mineral concn. by flotation - involving pre-sulphidation with molten sulphur
11/07/1990CN1046686A Salt collector
11/07/1990CN1010328B Fibre washer
11/07/1990CN1010286B Wet selecting system for hollow glass microbead from powder coal ash
11/06/1990CA1275974C Heavy metal separator
11/04/1990CA2013625A1 Cationic processing of mineral ores
10/1990
10/30/1990US4966686 Fine metal recovery apparatus
10/16/1990US4962858 Cleaning sluice boxes
10/09/1990US4961841 Apparatus and method employing magnetic fluids for separating particles
09/1990
09/19/1990CN1009621B Wet vibrating grader
08/1990
08/29/1990CN2061087U 泥浆净化机 Mud cleaner
07/1990
07/25/1990CN1008886B Separating device for alluvial gold ore
05/1990
05/23/1990DE3838500A1 Method and device for hydromechanical processing of mineral substances which can be dispersed in water
05/17/1990WO1990005019A1 Feeder means
04/1990
04/05/1990DE3833054A1 Verfahren zur aufbereitung von teichschlamm (flotationsabgaengen) und aufbereitungsanlage Process for the preparation of pond sludge (flotation tailings) and treatment plant
04/04/1990EP0122270B1 Separation of multi-phase systems
04/04/1990CN1040935A Fine seperator for enriching minerals
04/04/1990CN1040934A Fine seperator for enriching minerals
04/03/1990US4913803 Particle separation system
03/1990
03/14/1990CN2054378U Moving type gulch-gold washing device
03/07/1990CN2053946U Classifier for milling ore
02/1990
02/28/1990CN1039976A Water sieve method of garbage
11/1989
11/21/1989CA1263098A1 Gold recovery processes
11/02/1989WO1989010196A1 Concentrator for separation of minerals
11/02/1989WO1989010195A1 Concentrator for separation of minerals
11/01/1989CN1036715A Combined high-frequency vibrational screen for dry/wet materials
10/1989
10/25/1989CN2046407U Recovery and classifier for the drifter of powder coal
10/18/1989CN1036342A Classification of hollow glass corpuscles from powder coal ash
10/11/1989CN1005390B Ore washing-aggiomeration-high gradient magnetic dressing process and ore washing equipment
09/1989
09/27/1989CN2044901U Fluidized screening device with spiral drum screen
08/1989
08/23/1989CN2043135U Beaded agarose gel screening grader
07/1989
07/26/1989EP0325324A2 Apparatus and process for reclaiming gravel, soil particles and wood pieces from a mixture of the same
07/06/1989DE3744163A1 Method and plant for processing ore, coal or other minerals
07/05/1989CN2040405U Dust wiper device for industry use.
06/1989
06/28/1989CN2040003U Dual-purpose starch and residue auto-separator for potato and grain
06/28/1989CN2039999U Multi-purpose separating water-mill
06/14/1989CN1004471B Scheelite medicament treating electric selection tin-eliminating method
06/07/1989EP0319070A1 An installation for extracting granular material in a predetermined composition and method for using that installation
05/1989
05/31/1989CN2038424U Tubular screening machine for washing sand for gold
05/17/1989CN2037639U Electrical granular-layer precipitator for boilers burning inferior coal
05/02/1989US4826251 Dredging apparatus
04/1989
04/18/1989US4822090 For use in the riverbeds
04/18/1989CA1252757A1 Apparatus and a method for separating one solid component from another solid component in suspension in a liquid
04/12/1989EP0311220A2 Improvements in or relating to the treatment of multi-phase systems
04/11/1989US4819808 Apparatus and method employing magnetic fluids for separating particles
04/05/1989CN2035273U Combined strake
03/1989
03/29/1989CN2034873U Electromagnetic rotational flow vibration sifter
02/1989
02/15/1989CN1031031A Concentration technology of sepiolite
01/1989
01/03/1989US4795553 Spiral separator
12/1988
12/13/1988CA1246479A1 Method for the beneficiation of oxidized coal
11/1988
11/17/1988DE3715019A1 Apparatus for separating solids from liquids
11/01/1988CA1243984A1 Process for recovering minerals and metals by oleophilic adhesion
10/1988
10/05/1988CN86106469B Industrial concentration method for sepiolite
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