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Class Information
Number: 210/772
Name: Liquid purification or separation > Processes > Separating > Including treating separated solids > Washing with a fluid other than the prefilt
Description: Process in which the solids are contacted with a fluid different from the prefilt to wash same.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7553419 |
Method of material processing to produce a fiber product |
Jun. 30, 2009 |
| 7517458 |
Process obtaining landfill disposable wasted from hydrocarbon containing sludge |
Apr. 14, 2009 |
| 7470370 |
Process for removal of impurities from mother liquor in the synthesis of carboxylic acid using pressure filtration |
Dec. 30, 2008 |
| 7410568 |
Sludge treatment |
Aug. 12, 2008 |
| 7404903 |
Drill cuttings treatment system |
Jul. 29, 2008 |
| 7338602 |
Grease trap waste treatment and fat, oil, and grease (FOG) recovery system |
Mar. 4, 2008 |
| 7335311 |
Sludge treatment |
Feb. 26, 2008 |
| 7291270 |
Process for removal of impurities from an oxidizer purge stream |
Nov. 6, 2007 |
| 7282151 |
Process for removal of impurities from mother liquor in the synthesis of carboxylic acid using pressure filtration |
Oct. 16, 2007 |
| 7273559 |
Process for removal of impurities from an oxidizer purge stream |
Sep. 25, 2007 |
| 7223344 |
Method for treating an exhausted glycol-based slurry |
May. 29, 2007 |
| 7192524 |
Method for processing sugar cane filter cake mud and extracting component products |
Mar. 20, 2007 |
| 7192527 |
Processes for removing oil from solid wellbore materials and produced water |
Mar. 20, 2007 |
| 7087171 |
Method for selective recovery and dewatering sewage sludge by using sludge-coal-oil co-agglomeration |
Aug. 8, 2006 |
| 7014778 |
Device and method for treating waste product |
Mar. 21, 2006 |
| 6946072 |
Method and apparatus for washing a fibre suspension |
Sep. 20, 2005 |
| 6906227 |
Bisphenol phenol adducts |
Jun. 14, 2005 |
| 6902680 |
Device for selectively filtering under reduced pressure and for vacuum drying sample liquids or drops of sample liquids as well as use of said device |
Jun. 7, 2005 |
| 6896807 |
Capacitor electrolyte recovery |
May. 24, 2005 |
| 6890441 |
Hydraulic annular washing column, and process for separating solids from a suspension |
May. 10, 2005 |
| 6874644 |
Method of and appliance for material separation |
Apr. 5, 2005 |
| 6869539 |
Reclamation of materials in a closed environment with remedial water |
Mar. 22, 2005 |
| 6846420 |
Process for removing oil from solid materials recovered from a well bore |
Jan. 25, 2005 |
| 6833077 |
Sequential swinging precoat removal and renewal system, filter so equipped and method |
Dec. 21, 2004 |
| 6814878 |
Process for carrying out a hydrogenation reaction and removing pyrophoric catalyst |
Nov. 9, 2004 |
| 6773612 |
Sloped screen separator that removes solids from a manure slurry |
Aug. 10, 2004 |
| 6716307 |
Process and system for the removal of scale build-up |
Apr. 6, 2004 |
| 6692644 |
Process for recovering oil and sulfonates from filtration panel |
Feb. 17, 2004 |
| 6645386 |
Water treatment method by ballasted floc including a recycling of granular material |
Nov. 11, 2003 |
| 6641741 |
Removal and recovery of chloride from phosphonomethyliminodiacetic acid process brine |
Nov. 4, 2003 |
| 6550552 |
Method for the removal and recovery of the oil component from drill cuttings |
Apr. 22, 2003 |
| 6526675 |
Methods of using natural products as dewatering aids for fine particles |
Mar. 4, 2003 |
| 6527960 |
Jet pump treatment of heavy oil production sand |
Mar. 4, 2003 |
| 6521135 |
Filtration apparatus operation features |
Feb. 18, 2003 |
| 6514417 |
Microwave assisted cleaning and reclamation of industrial wastes |
Feb. 4, 2003 |
| 6511604 |
Method of treating a liquid material and treatment facilities |
Jan. 28, 2003 |
| 6500347 |
Process for recovering crystals from a slurry |
Dec. 31, 2002 |
| 6379559 |
Method of making sludge precipitated in a chromium plating impurity recovery electrolysis tank harmless |
Apr. 30, 2002 |
| 6316247 |
System and method for refining liposuctioned adipose tissue |
Nov. 13, 2001 |
| 6270678 |
Method for treating alkaline waste water |
Aug. 7, 2001 |
| 6267925 |
Method for cryopreservation and recovery of red blood cells |
Jul. 31, 2001 |
| 6254781 |
Method for recycling ferrofluid constituents used in a materials separation process |
Jul. 3, 2001 |
| 6190557 |
Spiral wound type membrane element, running method and washing method thereof |
Feb. 20, 2001 |
| 6177014 |
Cesium formate drilling fluid recovery process |
Jan. 23, 2001 |
| 6139685 |
Method and device for treating a pulp suspension |
Oct. 31, 2000 |
| 6129847 |
Recovery of raw materials from magnetic recording media |
Oct. 10, 2000 |
| 6077425 |
Method of separating a medium into a solids-containing component and a liquid component |
Jun. 20, 2000 |
| 6063294 |
Uniform area shower for disc filter |
May. 16, 2000 |
| 6054059 |
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 |
Apr. 25, 2000 |
| 6033579 |
Red mud dewatering and washing process |
Mar. 7, 2000 |
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