Patents for B01D 37 - Processes of filtration (4,716)
06/2000
06/28/2000EP1013614A1 Dewatering of fermentation products with screw press
06/28/2000EP1012450A1 Additive dispensing apparatus
06/28/2000CN1053842C Method for preparing cellulose powder filter aid
06/22/2000WO2000036291A1 Method for detecting clogging in a fuel filter in an internal combustion engine supply circuit
06/20/2000US6077435 Determining the fouling effect of a feedstream on a filter having known characteristics
06/14/2000EP1007185A1 Microcolumn for extraction of analytes from liquids
06/13/2000US6074561 Apparatus and method for recovering photoresist developers and strippers
06/08/2000WO1999048584A9 Filter constructions and methods
06/08/2000DE19856207A1 Assembly for cleaning a paper fiber suspension has a vertical round sieve with an upper flotation foam collection zone and a pump action for the suspension and bubbles through the sieve without a turbulence generator
06/07/2000CN1255875A Filtering medium for separation of solid/liquid
06/06/2000US6070600 Point of use dilution tool and method
05/2000
05/30/2000US6068825 Comprising the steps of hydrothermal reaction to prepare calcium silicate particles and decalcification of the calcium silicate particles
05/18/2000WO2000027591A1 Chemical-mechanical-polishing system with continuous filtration
05/17/2000EP1000648A1 Candle filter and process for the stabilization of beverages and for the regeneration of stabilizers
05/17/2000EP1000647A1 Candle filter for the pre-coat filtration of beverages
05/17/2000EP0819022B1 Process and apparatus for dewatering a suspension
05/10/2000EP0998968A2 Process for treating industrial effluents
04/2000
04/26/2000EP0832108B1 Process for recovering water-insoluble compounds from a fermentation broth
04/25/2000US6054059 Use of a ceramic metal oxide filter whose selection depends upon the Ph of the feed liquid and subsequent backwash using a liquid having a different Ph
04/25/2000CA2087557C Method for removing catalyst
04/18/2000US6051137 Sewage dewatering process and equipment
04/18/2000CA2184535C Apparatus and method for separation of solids from liquid
04/13/2000WO2000020094A1 Controlling the supply of bodyfeed to a filter
04/11/2000CA2022884C A continuously and automatically functioning device for the drainage of sludge, especially of sewage sludge
04/04/2000US6045692 Oil filter to introduce anti-wear additives into engine lubricating system
04/04/2000CA2138806C Apparatus for removing acidic impurities from lubricating oil
03/2000
03/22/2000CN2369744Y Pressure type coagulating reaction filter
03/15/2000EP0985438A1 System for the filtration of liquids of machine tool
03/08/2000EP0983954A1 Pleating apparatus and methods
03/07/2000US6033566 Continuous flow filter system
03/01/2000EP0982061A1 Filters, methods of making a filter, and filtering methods
03/01/2000EP0982060A1 Precoat filters and methods
03/01/2000CN2366163Y Compact boiled oil purifying apparatus
02/2000
02/29/2000US6029479 Fine particle lint filter
02/17/2000WO2000007487A1 Cylindrical filter
02/15/2000US6024813 Process for fibrous structure containing immobilized particulate matter
02/10/2000WO2000006283A1 Method for using infusorial earth for filtration
02/03/2000DE19900156A1 Highly pure amorphous silicic acid preparing method
02/03/2000DE19833405A1 Verfahren zur Verwendung von Kieselgur zur Filtration A method of using diatomaceous earth for the filtration
02/02/2000EP0976437A2 Liquid treatment media regeneration apparatus and process
02/02/2000EP0975408A1 Filter life measurement
01/2000
01/26/2000CN1048647C Method for prepn. of filtering aid agent using 'Yeshewen Stone' from asbestos tailing
01/19/2000CN1241448A Method for producing filter cake
01/18/2000US6015487 Coolant purification system
01/11/2000US6013138 Method for cleaning a pipe with a vehicle
01/05/2000EP0968040A1 Method of cleaning liquid cooling lubricants
01/05/2000DE19828933A1 Monitor for fuel filters in motor vehicles
12/1999
12/30/1999DE19828502A1 Flotation pretreatment of turbid fluids before filtration, especially beers and wines
12/29/1999EP0967000A1 Method for producing a filter cake
12/28/1999US6009404 Method and device for cost-orientated operation of a conditioning device particularly a filter
12/25/1999CA2273772A1 Method for producing a filter cake
12/23/1999WO1999065592A1 Method and apparatus for recovery of water and slurry abrasives used for chemical and mechanical planarization
12/23/1999CA2335175A1 Method and apparatus for recovery of water and slurry abrasives used for chemical and mechanical planarization
12/09/1999WO1999062614A1 Blood collection systems and methods employing an air venting blood sample tube
12/08/1999EP0962242A1 Process for filtering a beverage and precoat filter
11/1999
11/25/1999WO1999059693A1 Apparatus and method for recovering photoresist developers and strippers
11/25/1999CA2332245A1 Apparatus and method for recovering photoresist developers and strippers
11/02/1999US5976389 Microscopic beads which are about 40 to 120 microns in diameter and which are synthetic, organic compounds derived from the polysaccharide dextran with an aqueous media in a column of a semen filtering device
10/1999
10/21/1999WO1999053015A1 Membrane filtration
10/20/1999EP0950639A1 An apparatus and method for purifying water
10/07/1999WO1999050194A1 Installation for filtering liquids
10/05/1999CA2050579C Apparatus for coagulating treatment
10/02/1999CA2267028A1 Pipe cleaning vehicle
09/1999
09/30/1999WO1999048584A1 Filter constructions and methods
09/28/1999US5958225 Fuel filter system
09/16/1999WO1999046026A1 Variable pressure screening
09/16/1999DE19810518A1 System for backwashing a filter
09/15/1999CN1228349A Pleating apparatus
09/15/1999CN1228348A Precoat filter
09/15/1999CN1228347A 过滤器 Filter
09/14/1999US5951878 Method and apparatus for cleaning filter material in a filter apparatus utilizing a suction generating nozzle
09/08/1999CN1044978C Combined filtration and fixation of heavy metals
09/07/1999US5948248 Coolant filter having a delayed release supplemental coolant additive cartridge
09/07/1999US5946767 Pipe cleaning vehicle
09/01/1999EP0938884A2 Swimming pool with integrated filtering system
09/01/1999EP0938361A1 Water purifier
08/1999
08/26/1999WO1999042601A1 PROCESS FOR THE OBTAINING OF HMG-CoA REDUCTASE INHIBITORS OF HIGH PURITY
08/26/1999CA2321052A1 Process for the obtaining of hmg-coa reductase inhibitors of high purity
08/25/1999EP0629178B1 Apparatus for treatment of effluent
08/17/1999US5938936 Method for dewatering flocculated materials
08/12/1999WO1999039806A1 Filter aid
08/12/1999WO1999039805A1 Filtration member for solid-liquid separation
08/12/1999DE19804882A1 Filterhilfsmittel Filter aid
08/12/1999DE19804493A1 Filtermedium für die Fest/Flüssig-Trennung Filter media for solid / liquid separation
08/11/1999CA2261243A1 Fuel filter with internal pressure regulator
08/10/1999US5935436 Device for simultaneously removing leukocytes and methylene blue from plasma
07/1999
07/28/1999EP0931577A1 Method and apparatus for continuous high pressure filtration of liquids out of solid material from a substance to be thickened
07/28/1999EP0813502A4 Electrocoalescent system for decontaminating water streams
07/21/1999CN1223605A Drinking water filtration system
07/06/1999US5919360 Additive dispensing apparatus
06/1999
06/17/1999WO1999029396A1 Method for filtering a liquid
06/17/1999CA2312794A1 Method for filtering a liquid
06/15/1999CA2136200C Water clarifier with first filtrate isolation, improved backwashing and improved bubble generation
06/02/1999EP0919606A2 Process for the treatment of cooling lubricants for micro-organisms
06/02/1999EP0919269A2 Feeder insert for a tubular cartrige filter
05/1999
05/19/1999EP0915730A1 An oil filter to introduce anti-wear additives into engine lubricating system
05/11/1999US5902487 Plant for conditioning and dewatering suspension having on-line density and flow rate measurement means for automatic dosing of conditioner
05/11/1999CA2126739C Filter and a method for separating charged particles from a liquid stream
05/04/1999US5900158 Precoat layer on the filter surfaces of the disc filter can be cleaned.
05/04/1999US5900138 Vessel for filtering liquids, particularly drinking water having device for counting occasions of vessel access
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