| Patents for B03C 7 - Separating solids from solids by electrostatic effect (998) |
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| 10/25/1994 | US5358119 Separating particles with same density range in a free-fall separator |
| 09/20/1994 | US5348162 Machine for processing goods, especially refuse, for sorting it |
| 09/07/1994 | EP0613724A2 Separating constituents of a liquid material |
| 08/24/1994 | EP0611390A1 Coal pulverizer purifier classifier |
| 08/04/1994 | DE4339532A1 Sepn. and grading of solids |
| 08/03/1994 | CN1090225A Phosphor-reducing concentrating process for high-phosphor ilmenite |
| 07/28/1994 | DE4302169A1 Electro separator for oil seed shelling system |
| 07/12/1994 | US5327617 Electrostatic opening and short fiber separation apparatus for carding machines |
| 05/25/1994 | CN2165930Y High-pressure electrostatic generator of electrostatic stem-separating machine for tea |
| 04/05/1994 | US5299692 Method and apparatus for reducing carbon content in particulate mixtures |
| 03/31/1994 | DE4232123A1 Electrostatic sorting unit for conducting and non-conducting particles - using circulating earthed metal belt and negative high voltage electrode |
| 03/23/1994 | EP0455697B1 Machine for processing goods, especially refuse, for sorting it |
| 03/03/1994 | WO1994004634A1 Coal pulverizer purifier classifier |
| 03/01/1994 | US5289922 Electrostatic separation of mixed plastic waste |
| 02/22/1994 | US5288305 Precharging before first collision with walls in friction charger by using photoeffect; ultraviolet radiation |
| 02/18/1994 | CA2103612A1 Coal pulverizer purifier classifier |
| 01/27/1994 | DE4225977C1 Plastics particles sepn. from mixt. contg. various types and paper - by chopping, dry sifting, wind sifting medium and coarse fractions to remove paper and electrostatic sepn. of these and fine fraction |
| 01/13/1994 | DE4222870A1 Triboelectric charging of particles - by two-stage positive and negative charging process for complete particle sepn. |
| 01/05/1994 | DE4214950C1 Increasing yield in electrostatic sepn. of hard salt contg. carnallite - by recycling residue from potash purificn. stage to potash sepn. from kieserite |
| 01/04/1994 | US5275631 Centrifuging; aerodynamics |
| 10/14/1993 | WO1993019848A1 Method and apparatus for mixing, comminuting and/or separating recyclable materials |
| 10/12/1993 | US5251762 Electrostatic separation of particles |
| 10/06/1993 | EP0311617B1 Separating constituents of a mixture of particles |
| 09/07/1993 | CA1321980C Separating constituents of a mixture of particles |
| 08/04/1993 | EP0553320A1 Method of separating polyethylene (pe) and polypropylene (pp). |
| 08/04/1993 | EP0553319A1 Method of separating a mixture of plastics comprising at least three components using electrostatic techniques. |
| 08/04/1993 | EP0553315A1 Method of separating poly(ethylene terephthalate) (pet) and poly(vinyl chloride) (pvc). |
| 05/27/1993 | DE4200167C1 Purificn. of sylvite - comprises treating with salicylic acid and glycolic acid in high humidity |
| 05/27/1993 | DE4200166C1 Improved sodium chloride selectivity - during electrostatic working up of sylvite using sodium salicylate |
| 05/05/1993 | CN1071608A Iron powder extracting tech. from sulfuric acid industry waste |
| 04/15/1993 | WO1993006934A1 Electrostatic separation of plastic materials |
| 03/04/1993 | WO1993003852A1 Method of separating polyethylene (pe) and polypropylene (pp) |
| 03/04/1993 | WO1993003851A1 Method of separating poly(ethylene terephthalate) (pet) and poly(vinyl chloride) (pvc) |
| 03/04/1993 | WO1993003848A1 Method of separating a mixture of plastics comprising at least three components using electrostatic techniques |
| 11/24/1992 | CA1310610C Installation for conditioning and triboelectrically charging fine-grained mixtures of salts |
| 11/10/1992 | US5161696 Method and apparatus for separating shapes of abrasive grains |
| 09/23/1992 | EP0504452A1 Process and apparatus for charging particles |
| 09/23/1992 | EP0504451A1 Process and apparatus for charging particles |
| 08/04/1992 | CA1305944C 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 |
| 06/02/1992 | US5118407 Electrostatic separation of plastic materials |
| 05/07/1992 | DE4034739A1 Oil seed peeler plant - works in two stages to remove peel followed by multi-staged electrical sepn. |
| 05/07/1992 | DE4034738A1 Plant for prepn. sunflower seeds by peeling for subsequent oil extraction - effects peeling in two stages followed by electrical sepn. of peel |
| 05/07/1992 | DE4034737A1 Sunflower seed peel separator - classifies granule size and separates peel using tilted sieving boxes and special electrical separator |
| 04/29/1992 | EP0482205A1 Electrostatic actuator |
| 03/24/1992 | US5098558 Adjustable feed accelerator for particle separator |
| 02/05/1992 | EP0469270A2 Method for recovering PVC and urethane foam from automotive interior trim waste |
| 02/04/1992 | CA2043999A1 Method for recovering pvc and urethane foam from automotive interior trim waste |
| 01/30/1992 | DE4039470C1 Useful material obtd. e.g. kieserite from potassium mineral - by milling, adding conditioning agent, adding rock salt to increase surface charge density and sepg. electrostatically |
| 01/22/1992 | EP0176572B1 Recovery of aleurone cells from wheat bran |
| 01/02/1992 | EP0417114A4 Separating constituents of a mixture of particles |
| 11/13/1991 | EP0455697A1 Machine for processing goods, especially refuse, for sorting it. |
| 11/12/1991 | CA1291967C Particle feeding apparatus |
| 10/31/1991 | WO1991016757A1 Electrostatic actuator |
| 10/30/1991 | CN1014498B Process for separating particles of electrically non-conductive material in particular plastics material and/or paper, from waste, and device for carrying out the provcess |
| 10/16/1991 | EP0452025A1 Magnetic methods of separating electrically conductive materials |
| 08/27/1991 | US5042725 Method for recovering PVC and urethane foam from automotive interior trim waste |
| 06/12/1991 | CN1012801B Eletric drum separator |
| 04/09/1991 | US5006226 Fluidized, dry bed, ore concentrator |
| 03/20/1991 | EP0418194A2 Separation process of a material mixture containing mixed non-metallic and non-magnetic metallic bodies |
| 03/20/1991 | EP0417114A1 Separating constituents of a mixture of particles |
| 03/19/1991 | US5000203 Purification by using electrostatic force for adhesion of foreign matter |
| 02/05/1991 | CA1279846C Process for separating fiber from dry-milled corn |
| 01/10/1991 | DE3921073A1 Electrostatically working up mineral ore - by sepg. into grain size fractions and subjecting each fraction to separate free-fall electrostatic field |
| 01/10/1991 | DE3921072A1 Electrostatic processing of crude potash with no wet stage - using free fall separator in which vertical air flow is maintained |
| 12/19/1990 | CN1010858B Cleaning agent and method for cleaning adhesive matter on rolling cylinder for electric selection of titanium |
| 10/10/1990 | EP0390953A1 Method of removing foreign matter by electrostatic or magnetic force |
| 09/04/1990 | US4954248 Electrical drum-type separator |
| 08/22/1990 | CN1009251B Method and equipment for separating lightweight dielectric according to transmissivity |
| 08/09/1990 | WO1990008597A1 Machine for processing goods, especially refuse, for sorting it |
| 05/15/1990 | CA1269062A1 Process for the control of electrostatic separation of crude potash salts in electrostatic free-fall separators |
| 05/10/1990 | DE3837278A1 Process for recovering kieserite by electrostatic separation of hard salts |
| 05/01/1990 | US4922099 Electric field device |
| 02/01/1990 | DE3825461A1 Process for the electrostatic processing of clay-containing crude salts |
| 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 |
| 01/08/1990 | EP0311617A4 Separating constituents of a mixture of particles. |
| 11/21/1989 | US4882043 Combination roll-type magnetic and electrostatic separator and method |
| 11/08/1989 | CN1036917A Cleaning agent and its application of adhesive matter on rolling cylinder for electric selection of titanium |
| 11/02/1989 | DE3825434C1 Obtaining useful substances from crude kieseritic potassium salt - comprises grinding, adding conditioning agent, charging salt triboelectrically, sepg. salt electrostatically etc. |
| 10/17/1989 | US4874507 Separating constituents of a mixture of particles |
| 10/05/1989 | WO1989009092A1 Separating constituents of a mixture of particles |
| 07/26/1989 | CN2041490U Electrostatic separating machine for kernel and peel |
| 07/18/1989 | US4849099 Particle feeding apparatus |
| 06/14/1989 | CN1004471B Scheelite medicament treating electric selection tin-eliminating method |
| 06/13/1989 | US4839032 Separating constituents of a mixture of particles |
| 04/19/1989 | EP0311617A1 Separating constituents of a mixture of particles. |
| 02/21/1989 | CA1250251A1 Procedure for electrostatic processing of ground potash salts containing kieserite |
| 01/18/1989 | EP0176572A4 Recovery of aleurone cells from wheat bran. |
| 01/10/1989 | US4797201 Electrostatic free-fall separator |
| 12/14/1988 | CN87103822A Electric drum separator |
| 11/10/1988 | DE3713473A1 Liquid-free electrophoresis |
| 11/03/1988 | WO1988008331A1 Electric drum separator |
| 09/07/1988 | CN88100769A Process for separating particles of electrically non-conductive material in particular plastics material and/or paper, from waste, and device for carrying out the process |
| 09/07/1988 | CN87211390U Manual mobile dressing machine for panning and ore dressing |
| 08/30/1988 | US4767506 Conditioning with o-hydroxy-aromatic carboxylic acid and fatty acid |
| 08/24/1988 | EP0279200A2 Process for separating electrically non-conductive parts from garbage, in particular plastic and/or paper, and device therefor |
| 05/24/1988 | US4746073 Separation of fiber material |
| 05/11/1988 | EP0266601A2 Process for preparing magnesium sulphates |
| 05/11/1988 | EP0266600A2 Process for preparing magnesium sulphates |
| 05/11/1988 | EP0266599A2 Process for preparing magnesium sulphates |
| 05/10/1988 | US4743362 Process and device for controlling the electrostatic separation of crude potash salts in electrostatic free fall separators |