| Patents for B01D 37 - Processes of filtration (4,716) |
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| 01/31/1985 | WO1985000354A1 Process and apparatus for handling waste from oil well operations |
| 01/29/1985 | US4496460 Greater cleansing; efficiency |
| 01/29/1985 | CA1181570A1 Process for the separation of crystalline silicates |
| 01/15/1985 | CA1180855A1 Process for filtering green liquor using lime sludge as a filtering aid |
| 01/08/1985 | CA1180828A1 Solids separation and liquid clarification system |
| 01/02/1985 | EP0129835A2 Method for treatment of crude oil |
| 12/11/1984 | US4487689 System for filtering a liquid |
| 11/27/1984 | CA1178748A1 Filter aid materials bearing anion exchange resins |
| 11/14/1984 | EP0124880A2 Method and apparatus for cleaning liquids |
| 11/06/1984 | US4481115 Filtration of sewage sludge |
| 11/06/1984 | US4481114 Sludge dewatering system |
| 10/24/1984 | EP0122867A2 Pneumatic hydro-pulse filter system and method of operation |
| 10/10/1984 | EP0121105A1 Filtering device for liquids |
| 10/03/1984 | EP0120039A1 Recovery of solids from dispersions |
| 09/12/1984 | EP0118210A2 Process for separating suspended material from a fluid |
| 08/29/1984 | EP0116956A2 Process for the purification of solids containing concentrated coking plant tars |
| 08/14/1984 | US4465600 Means and method for recovering algae |
| 08/14/1984 | US4465593 Recovery of metal from waste water by chemical precipitation |
| 08/07/1984 | CA1172391A1 Dewatering of sewage sludges on filter presses |
| 08/07/1984 | CA1172390A1 Dewatering of sewage sludges on filter presses |
| 07/31/1984 | US4462915 Method and system for filtering cooking oil |
| 07/31/1984 | US4462902 Means for filtering a liquid containing various impurities |
| 07/24/1984 | CA1171562A1 Apparatus and method for clarification of water using combined flotation and filtration processes |
| 07/18/1984 | EP0113447A2 Process for the fractional separation of protein mixtures with membranes |
| 07/17/1984 | US4460461 Device for the regulation of a water-removing machine |
| 07/03/1984 | US4457900 Precipitation with acid from sodium silicate solution |
| 06/19/1984 | CA1169234A1 Filter media, method for oxidizing and removing soluble iron, method for removing and inactivating microorganisms and particulate filter aid |
| 06/13/1984 | EP0110651A1 Process for separating wax from mixture of wax and oil or wax, oil and solvent |
| 06/12/1984 | US4454044 Filter medium and aid to remove turbidity |
| 06/12/1984 | US4454032 Fast filtering apparatus |
| 06/05/1984 | US4452707 Washing filter cake with dibutyl phthalate and then calcining |
| 05/29/1984 | US4451377 Process for cleaning an oil-contaminated brine containing particulate drill cutting solids |
| 05/16/1984 | EP0108684A1 Installation and method for separating the constituents of a suspension |
| 05/15/1984 | US4448696 Process for recovering and recycling coagulant present in water treatment sludges |
| 05/02/1984 | EP0106916A1 Method for the removal of colouring matter, pigments and/or optical brightening agents from waste waters |
| 05/01/1984 | US4446030 Liquid circulation and pressure tanks |
| 04/25/1984 | EP0105964A1 Process for continuous separation of polluting matter from a carrier fluid |
| 04/17/1984 | US4443421 Filtration, fabrics, filter cakes, acid resistance |
| 04/17/1984 | CA1165698A1 Method of removing fine suspended solids from effluent stream |
| 04/12/1984 | WO1984001313A1 Recovery of solids from dispersions |
| 04/04/1984 | EP0104307A2 Large-surface rotating disc filter element in a tank |
| 03/27/1984 | US4439327 Backwash multiple alluvial filter and method of filtering therewith |
| 03/27/1984 | US4439325 Pressurized filtration system |
| 03/27/1984 | US4439320 Solids concentrator |
| 03/21/1984 | EP0031346B1 Dry cleaning of pressure filters for liquids |
| 03/13/1984 | US4436655 Process for the continuous purification of contaminated fluids and for conditioning the resulting concentrates |
| 03/13/1984 | US4436635 Process for filtration of oil and gas well treatment fluids |
| 03/06/1984 | US4435204 N-Organo-phosphonomethylglycine-N-oxides and the use thereof to increase the sucrose content of sugarcane |
| 02/28/1984 | US4434060 Removal of heavy metals content |
| 02/21/1984 | CA1162666A1 Dewatering fine coal slurries using organopolysiloxanes |
| 01/31/1984 | US4428969 Process for the extraction of date fruits |
| 01/31/1984 | US4428425 Single pass filtration of oil or gas well completion fluids |
| 01/31/1984 | CA1161372A1 Filtering apparatus |
| 01/24/1984 | US4427554 Method for applying a secondary filter layer or precoat layer in a plate filter press, and plate filter press for performing the method |
| 01/24/1984 | US4427552 Method of automatically controlling a continuously operating pressure filter |
| 01/24/1984 | US4427551 Solids separation and liquid clarification system |
| 01/04/1984 | EP0097577A1 Apparatus for rapid filtration, especially for biological liquids |
| 01/03/1984 | US4424081 Reconditioning soils contaminated by crude oils or other refined petroleum products |
| 01/03/1984 | CA1159770A1 Filter |
| 12/27/1983 | US4422946 Calcined α-alumina filter aids |
| 12/21/1983 | EP0096041A1 Method of preventing clogging a screening means |
| 12/13/1983 | US4420404 Process for dewatering fine granular materials |
| 12/13/1983 | US4420402 Method and apparatus with couch press for dewatering a slurry of fine particles |
| 12/06/1983 | US4419249 Method and apparatus for dewatering a slurry of fine particles |
| 11/29/1983 | US4417976 Dewatering of petroleum-containing sludges with recovery of the oil component |
| 11/23/1983 | EP0094745A2 Filtration |
| 11/22/1983 | CA1157390A1 Belt pressure filter |
| 11/08/1983 | CA1156535A1 Hydroxylbenzyl amines as dewatering agents |
| 10/25/1983 | US4411797 Dewatering of sewage sludges on chamber filter presses |
| 10/25/1983 | CA1155774A1 Filtering aid for the filtration of beverages |
| 10/25/1983 | CA1155773A1 Reconditioning of phosphate ester hydraulic control fluids |
| 10/18/1983 | US4410433 Vertical filter system |
| 10/18/1983 | CA1155567A1 Dewatering fine coal slurries using two types of organopolysiloxanes |
| 10/04/1983 | US4407720 With simultaneous backwashing |
| 09/27/1983 | US4406796 Method and apparatus for cleaning fine waste material mixed with oil and water |
| 09/27/1983 | US4406795 Separating protein solids from fat-containing liquid by filtration |
| 09/21/1983 | EP0089107A2 Filtration of organic suspensions |
| 09/20/1983 | US4405466 Useing pressurized gas |
| 09/15/1983 | WO1983003060A1 Method to spread a pulp for its natural drying |
| 09/14/1983 | EP0088697A1 Process for setting sludge in view of its natural drying |
| 09/06/1983 | US4402834 Method for dewatering sludge-type material |
| 08/31/1983 | EP0087268A2 Process for treating sludge |
| 08/24/1983 | EP0086642A2 Filtration method and apparatus |
| 08/17/1983 | EP0085878A1 Method for regulating a continuously working pressure filter |
| 08/02/1983 | CA1151092A1 Process for removal of solids from solvent refined coal solutions |
| 07/19/1983 | US4394262 System for minimizing backwash water usage on self-cleaning strainers |
| 07/05/1983 | CA1149297A1 Filtering aid for the treatment of suspensions, particularly of domestic, industrial, and other sludges for subsequent draining |
| 06/14/1983 | US4388197 Lime sludge as filter aid |
| 06/14/1983 | CA1148168A1 Agent for promoting filtration dehydration of metal hydroxide slurry |
| 06/09/1983 | WO1983001969A1 Method of preventing clogging a screening means |
| 06/08/1983 | EP0080457A1 Method and device at precoat preparation and application |
| 05/31/1983 | US4385903 Agent for promoting filtration dehydration of metal hydroxide slurry |
| 05/24/1983 | US4384961 Process for filtration of aqueous oil-containing brines |
| 05/17/1983 | US4383981 Filtration; alcohol, ketone, sulfoxide, cyclic ether solvent |
| 05/11/1983 | EP0078727A1 Filter apparatus for a liquid containing diverse impurities |
| 05/10/1983 | US4382863 Sludge dewatering system |
| 05/03/1983 | CA1145867A1 Purification process for waste and/or industrial water containing hydrocarbons |
| 04/05/1983 | US4379051 Precoat filter with cylindrical filter chamber |
| 03/31/1983 | WO1983001014A1 Proces for filtration of oil and gas well treatment fluids |
| 03/31/1983 | WO1983001013A1 Solids separation and liquid clarification system |