Patents
Sitemap › B01 - Physical or chemical processes or apparatus in general › B01D - Separation › B01D 37 - Processes of filtration
Patents for B01D 37 - Processes of filtration (4,716)
09/1986
09/30/1986US4614597 Recovery of oil and sulfonate from filter cake
09/30/1986US4614594 Electrical capacitance
09/30/1986US4614581 Backwashable filter
09/30/1986CA1212162A1 Method for sensing changes in the filtering effect of filtering devices for separation of contamination from gaseous streams and a device for carrying out the method
09/25/1986WO1986005413A1 Cross-flow filtration
09/16/1986US4612123 Regulating apparatus for dewatering machines
09/10/1986EP0193565A1 Apparatus for clarification of water.
09/03/1986EP0192826A2 Process and apparatus for the regeneration and treatment of liquids
08/1986
08/26/1986US4608181 Water treatment
08/26/1986US4608180 Separation process
07/1986
07/29/1986CA1208619A1 Process in the separation of catalyst particles suspended in liquid
07/29/1986CA1208618A1 Process and apparatus in the separation of catalyst particles suspended in liquid
07/23/1986EP0188104A2 Hydrophobic filter material and method for the treatment with a wetting agent
07/09/1986EP0187035A2 Use of vinyl addition copolymers to improve quality of lubrificating oil additives
07/08/1986US4599117 Drilling cuttings
06/1986
06/17/1986US4595506 Filtering aid for the treatment of suspensions, particularly of domestic, industrial, and other sludges for subsequent draining
06/17/1986US4595499 Dewatering sewage sludge
06/10/1986US4594158 Filter aid materials bearing anion exchange resins
06/10/1986CA1205754A1 Method of and filter thickener for thickening of suspensions
06/03/1986US4592847 Process and apparatus for cleaning filter elements, especially filter cartridges
05/1986
05/21/1986EP0181545A2 Preparation process of aqueous, highly concentrated pressed cakes of azoic disperse dyes
05/14/1986EP0180870A2 Preparation process of aqueous, highly concentrated pressed cakes of solid materials
05/06/1986US4587023 Pressing for dewatering sludge
04/1986
04/30/1986EP0179446A2 Method and device for the formation of a filter cake
04/22/1986US4584111 Use of vinyl addition copolymers to improve quality of lubricating oil additives
04/16/1986EP0177521A1 Filter element for separating solid material particles from gas or liquid media.
04/01/1986US4579664 Adjustment of solid concentration, mixing with flocculant, and spreading on drying bed
04/01/1986US4579662 Concentrating and harvesting bacteria; continous, controlled
03/1986
03/25/1986US4578253 Methods of and apparatus for recovering a constituent of a process effluent
03/25/1986US4578197 Method of and filter thickener for thickening of suspensions
03/13/1986WO1986001427A1 Apparatus for clarification of water
02/1986
02/26/1986EP0172649A2 Dewatering solids suspensions
02/25/1986US4572742 Ion exchanging; alumino-silicate molecular sieves, decoloring and decalcifying
02/18/1986US4571301 Method and apparatus for cleaning chemical/water solutions
02/12/1986EP0170679A1 Methods of and apparatus for recovering a constituent of a process effluent.
02/11/1986US4569756 Filter aids, adsorption, wet strengthening, ion exchanging, polymer micro-bits
02/04/1986US4568475 Dodecylbenzene sulfonic acid, sodium xylene sulphonate
01/1986
01/22/1986EP0168798A2 Process and apparatus for feeding a filter device
01/16/1986WO1986000240A1 A device for automatic control of filter presses operation
01/15/1986EP0016220B1 Process of filtration
01/07/1986US4563282 Rotating microscreens and biological contactors
01/02/1986EP0166715A2 Process for the dehydration of muds and/or of organic materials, and apparatus for carrying out the process
12/1985
12/24/1985US4560483 Using two filter vessels for continuous filtration when one is being cleaned
12/17/1985US4559143 Sludge treating method
12/11/1985EP0164225A2 Clarification of high density brine fluids
11/1985
11/13/1985EP0161082A2 Additives for improving low temperature characteristics of fuels, process of preparation and compositions and use thereof
11/12/1985US4552669 Pneumatic hydro-pulse filter system and method of operation
11/07/1985WO1985004857A1 Aid and process for dehydrating sludge
11/06/1985EP0160527A2 Flocculants and processes for their preparation
10/1985
10/24/1985WO1985004595A1 Filter element for separating solid material particles from gas or liquid media
10/22/1985US4548719 Method for dehydrating sludge
10/15/1985US4547296 Depositing filter cake on retainer, pumping and backwashing liquidthrough retainer
10/15/1985US4547295 Heterogeneity mixture of particle sizes in filter
10/08/1985CA1194810A1 Method and apparatus with couch press for dewatering a slurry of fine particles
10/01/1985US4544491 Recovery of hydrocarbon oil from filter cakes
10/01/1985US4544490 Method and system for recovering coal fines from pipe line coal slurry
09/1985
09/25/1985EP0155651A2 Filter process for liquids and apparatus for carrying out the process
09/25/1985EP0155336A1 Candle filter
09/11/1985EP0153972A1 Method and apparatus for cleaning filter elements, especially for filter candles
09/03/1985US4539111 Extraction apparatus
09/03/1985US4539097 Method for filtering solvent and tar sand mixtures
08/1985
08/21/1985EP0151906A2 Secondary flow fluid filter
08/21/1985EP0151747A1 Process and apparatus for sewage sludge dewatering
08/20/1985US4536845 Self-programmable controller for water conditioner recharging
08/20/1985CA1192321A1 Filtration of sewage sludge
08/15/1985WO1985003456A1 Methods of and apparatus for recovering a constituent of a process effluent
08/07/1985EP0150626A2 Recovery of metal from waste water by chemical precipitation
07/1985
07/30/1985US4532049 Dewatering agent compositions for sulfide materials
07/24/1985EP0149556A2 Relieving pressure differential in vacuum filter
07/18/1985WO1985003065A1 Mineral dewatering method
07/17/1985EP0148264A1 Process and apparatus for handling waste from oil well operations
07/16/1985CA1190483A1 Vertical filter system
07/04/1985WO1985002836A1 Process and plant for dehydrating muds
06/1985
06/26/1985EP0145842A2 Process and apparatus for removing suspended solids from a liquid
06/25/1985CA1189455A1 Method and apparatus for dewatering a slurry of fine particles
06/18/1985US4524153 Coupled resins used as filter aids immersed in an electrolytic solution to strip and separate concurrently
06/11/1985CA1188627A1 Backwash multiple alluvial filter and method of filtering therewith
06/04/1985CA1188435A1 Method for naturally drying mineral pulps
05/1985
05/28/1985CA1187817A1 Filtration method and apparatus
05/15/1985EP0141622A2 Recovery of polymer from polymer slurry
05/14/1985CA1187215A1 Process for recovering and recycling coagulant present in water treatment sludges
05/07/1985CA1186635A1 CALCINED .alpha.-ALUMINA FILTER AIDS
04/1985
04/30/1985US4514306 Automatic measurement of fluid flow and filter cake thickness; efficiency
04/23/1985US4512901 Solvent addition to deep bed filter
04/23/1985US4512811 Method and apparatus for cleaning containers
04/17/1985EP0137392A2 Precoat filter and method for neutralizing sugar syrups
04/16/1985US4511468 Charcoal filter
04/09/1985US4510061 Method of filtering
04/09/1985US4510055 Filter aid
04/03/1985EP0135627A1 Filtering system
04/02/1985CA1184855A1 Method for applying a secondary filter layer or precoat layer in a plate filter press and plate filter press for performing the method
04/02/1985CA1184854A1 Process for filtration of oil and gas well treatment fluids
03/1985
03/26/1985US4507208 Process for handling waste from oil well operations
03/05/1985US4502952 Control device
03/05/1985CA1183392A1 Method and system for filtering cooking oil
02/1985
02/26/1985US4501670 Mixing with aqueous solution of alkali metal hydroxides
02/26/1985US4501660 Magnetic helix to remove metal particles, magnesium to neutralize sulfuric acid
02/26/1985US4501446 Removal of fine-grained sediments from water bodies
02/12/1985CA1182419A1 Oil sludge conditioning process and equipment
02/12/1985CA1182418A1 Dewatering of petroleum-containing sludges with recovery of the oil component
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