| Patents for B03B 9 - General arrangement of separating plant, e.g. flow sheets (5,723) |
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| 09/13/1990 | DE3906645A1 Washing-out device for residual concrete |
| 09/12/1990 | EP0387126A1 Process and plant for producing compost by treatment of municipal waste |
| 09/12/1990 | EP0386998A1 Method and apparatus for separating adhered paper from paper covered gypsum board |
| 09/12/1990 | EP0386443A2 Method of and device for recycling refuse |
| 09/08/1990 | CA2011708A1 Method and apparatus for separating adhered paper from paper covered gypsum board |
| 09/06/1990 | DE3906516A1 Process and apparatus for disposing of refrigerators for separating off chlorofluorocarbons |
| 09/05/1990 | EP0385310A1 Electrostatic waste separation process |
| 09/04/1990 | CA1273617A1 Process and device for working up household, industrial and other similar waste |
| 08/28/1990 | USRE33313 Method for making low alpha count lead |
| 08/28/1990 | US4952307 Recovery of elemental sulphur from products containing contaminated elemental sulphur by froth flotation |
| 08/23/1990 | WO1990009248A1 Process for expelling gas from waste materials |
| 08/22/1990 | EP0383228A1 Method of degassing wastes |
| 08/22/1990 | EP0382726A1 Process and device for dredging silt in ports, waterways and the like. |
| 08/16/1990 | EP0382326A1 Device for the treatment of scrap |
| 08/09/1990 | WO1990008601A1 Process and installation for recovering valuable materials, in particular from waste materials on building sites |
| 08/09/1990 | WO1990008597A1 Machine for processing goods, especially refuse, for sorting it |
| 08/09/1990 | DE3903325A1 Verfahren zum rueckgewinnen von wertstoffen, insbesondere aus baustellenabfaellen und anlage zum durchfuehren des verfahrens A method for rueckgewinnen worth of materials, particularly of baustellenabfaellen and system for performing the method |
| 08/09/1990 | DE3901842A1 Method for separating picture tube glass from picture tubes and its cleaning and a device for carrying out the method |
| 08/07/1990 | US4946597 Low temperature bitumen recovery process |
| 08/02/1990 | DE3902535A1 Method and device for treating contaminated bases |
| 07/31/1990 | US4944868 Process and apparatus for separating plastics from contaminants |
| 07/24/1990 | US4943368 Nonmetallic abrasive blasting material recovery process including an electrostatic separation step |
| 07/24/1990 | US4942929 Disposal and reclamation of drilling wastes |
| 07/19/1990 | DE4000510A1 Greenery rubbish and bio:waste treatment - by composting in separate stockpiles in two walls |
| 07/18/1990 | EP0377718A1 Incineration residue treatment process and apparatus. |
| 07/10/1990 | US4940187 Systematic equipments for recycling raw materials from waste wires |
| 07/05/1990 | DE3842888A1 Method and arrangement for utilising lamps which are no longer functional |
| 07/04/1990 | CN1008604B Ultrasonic vibrator tray processes and apparatus |
| 07/03/1990 | US4938864 Method for processing fine coal |
| 06/20/1990 | EP0373673A2 Apparatus and process for removing volatile coatings from scrap metal |
| 06/13/1990 | EP0373134A1 A method and an apparatus for treating plant fibres |
| 06/13/1990 | EP0372039A1 Process and device for processing residues from refuse incinerators. |
| 06/07/1990 | DE3844214C1 Process for the recovery of rare metals from catalysts |
| 05/29/1990 | US4929342 Apparatus and method for separating recyclable materials |
| 05/23/1990 | EP0368962A1 Process and device for cleaning slag from refuse incinerators. |
| 05/23/1990 | DE3839043A1 Process and equipment for producing graphite |
| 05/23/1990 | DE3838500A1 Method and device for hydromechanical processing of mineral substances which can be dispersed in water |
| 05/22/1990 | US4927528 Sieve device for sieving out compost from rotten organic material |
| 05/22/1990 | CA1269355A1 System for recovery of salvageable ferrous and non- ferrous metal components from incinerated waste materials |
| 05/10/1990 | DE3842851A1 Process and apparatus for treating fly ashes by floatation |
| 05/10/1990 | DE3837227A1 Method for the definitive disposal of waste |
| 05/09/1990 | EP0202285B1 Fluidized bed reactor for the thermal elimination of waste |
| 05/09/1990 | CN1041888A Waterflow differential electrical charging process for ores |
| 05/08/1990 | US4923482 Process for separating sulfur from ore |
| 05/08/1990 | US4923125 Process for treating contaminated soil |
| 05/03/1990 | DE3836379A1 Method for processing wet refuse for the purpose of fermenting the organic components of the latter together with sewage sludge and apparatus for mechanically separating organic and inorganic refuse portions |
| 05/02/1990 | EP0366429A2 Improvements in apparatus and process to separate and remove extraneous matter from a liquid stream |
| 04/26/1990 | DE3835230A1 Process for energy recovery by refuse degassification |
| 04/24/1990 | US4919807 Ultrasonic vibrator tray apparatus |
| 04/24/1990 | CA2001216A1 Apparatus and process to separate and remove extraneous matter from a liquid stream |
| 04/19/1990 | WO1990003856A1 Process and device for processing slag and other combustion residues from waste incineration plants |
| 04/19/1990 | WO1990003846A1 Waterflow differential electrical charging process for ores |
| 04/11/1990 | CN1041118A Process for removing pyritic culfur from bituminous coals |
| 04/10/1990 | US4915802 Selecting low emitter ore, milling, forming suspension, separating, reducing:electrolytically |
| 04/10/1990 | US4915706 Dewatering, removing fine particle of pyritic sulfur; prepared slurry has selected size distribution |
| 04/05/1990 | DE3918292A1 Treating flue ash in combustion gases from incineration plant - by treating with acid soln. to dissolve heavy metals and reprecipitating as sulphide cpd(s) on ash residue |
| 04/05/1990 | DE3833054A1 Verfahren zur aufbereitung von teichschlamm (flotationsabgaengen) und aufbereitungsanlage Process for the preparation of pond sludge (flotation tailings) and treatment plant |
| 04/04/1990 | EP0362125A1 Process for the treatment of solid incinerator plant residues containing a heavy metal |
| 03/22/1990 | DE3831838A1 Process for the utilisation of steel works filter dust and similar material |
| 03/22/1990 | DE3831734A1 Method of utilising waste materials |
| 03/21/1990 | EP0359701A2 Method and apparatus for the preparation and recycling of sand for high-pressure water sand blasting |
| 03/21/1990 | EP0359250A2 Process for recycling and reutilizing waste, in particular solid urban waste |
| 03/21/1990 | EP0359106A2 Method of recovering and recycling polluted plastics |
| 03/13/1990 | US4908139 Method and apparatus for separating and recovering particulate material |
| 03/08/1990 | DE3921168A1 Sepg. residual contents from metal containers by absorbent - particles to be sepd. by wind-sifter after shredding metal for scrap |
| 03/06/1990 | US4905914 Method of segregating metallic components and impurities |
| 02/28/1990 | EP0355386A2 Fly ash beneficiation process |
| 02/22/1990 | WO1990001530A1 Process for removing pyritic sulfur from bituminous coals |
| 02/01/1990 | DE3919152A1 Method for precipitating light materials from sand and gravel |
| 02/01/1990 | DE3825223A1 Installation for separating a mixture of sand, water and impurities |
| 01/31/1990 | EP0274463B1 Device for optically sorting cullet, or a mass of recovered glass elements having been subjected to a crushing operation and comprising infusible or refractory elements, and plant comprising such devices |
| 01/25/1990 | DE3823883A1 Cable cutter |
| 01/23/1990 | US4895642 Process for separating particles of electrically non-conductive material, in particular plastics material and/or paper, from waste, and a device for carrying out the process |
| 01/16/1990 | US4894148 Device for separating a heterogeneous mass of solid material into fractions |
| 01/10/1990 | EP0349931A2 Process for the separation and recovery of materials from scrap cables |
| 01/10/1990 | EP0069119B1 Fluid recovery system |
| 01/09/1990 | US4892647 System for segregating trash |
| 01/03/1990 | EP0349361A1 Method of sorting mixed organic materials and installation for carrying out the method |
| 12/28/1989 | WO1989012609A1 Process and device for processing residues from refuse incinerators |
| 12/28/1989 | WO1989012498A1 Incineration residue treatment process and apparatus |
| 12/19/1989 | US4887722 Method for beneficiating by carbonaceous refuse |
| 12/19/1989 | US4887492 Forming suspension, separation by gravity; reduction with sodium carbonate |
| 12/14/1989 | WO1989011912A1 Process and device for cleaning slag from refuse incinerators |
| 12/05/1989 | US4884386 System for recovering, selecting and recycling rejected plastic containers |
| 11/28/1989 | US4883586 Process for beneficiating ores containing fine particles |
| 11/28/1989 | US4883584 Process of separating special steel components from lump shredder scrap |
| 11/21/1989 | US4882088 Slurry for centrifugal classification of colloidal particles |
| 11/16/1989 | DE3816493A1 Process for separating a starting product, preferably mill scale, into its constituents |
| 11/15/1989 | EP0174967B1 Sorting plant particularly for recovering valuable materials from refuse |
| 11/07/1989 | US4879048 Method and facility for removing sludge from water |
| 11/02/1989 | EP0339490A2 Device for sorting rubbish |
| 10/31/1989 | US4877190 Sandblasted garbage disposal system and method of using |
| 10/19/1989 | WO1989009751A1 Process for treating granular slag formed during the production of hematite iron and phosphoric iron |
| 10/17/1989 | US4874134 Solid waste processing facility and process |
| 10/11/1989 | CN1005390B Ore washing-aggiomeration-high gradient magnetic dressing process and ore washing equipment |
| 10/05/1989 | WO1989009091A1 Process and arrangement for treating recirculated drilling mud in drilling for oil and gas |
| 10/03/1989 | US4871447 From oil and gas residues |
| 09/21/1989 | WO1989008752A1 Method and apparatus for solid waste disposal |
| 09/19/1989 | US4867866 Municipal waste processing apparatus |
| 09/19/1989 | US4867384 Method and apparatus for recovering glass from old glass |