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Class Information
Number: 252/60
Name: Compositions > Physical separation agents
Description: Compositions specialized and designed for, or peculiar to, use in physically separating from each other, by froth-flotation or difference in specific gravity or rate of subsidence, two or more components of a mixture which differ from each other at least physically, or processes of making them.

Sub-classes under this class:

Class Number Class Name Patents
252/61 Froth-flotation or differential adherence 386

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8703088 Process for removing hydrazine from hydroxlyamine solutions Apr. 22, 2014
8685256 Microdispersions of hydroxamated polymers and methods of making and using them Apr. 1, 2014
8613865 Amidium-based ionic liquids for carbon dioxide absorption Dec. 24, 2013
8603226 Cyclic-amine-comprising absorption medium for removing acid gases Dec. 10, 2013
8597418 Absorbent, CO.sub.2 or H.sub.2S reducing apparatus, and CO.sub.2 or H.sub.2S reducing method using absorbent Dec. 3, 2013
8580183 Collection tubes apparatus, systems, and methods Nov. 12, 2013
8568520 CO.sub.2 recovery system and CO.sub.2 absorption liquid Oct. 29, 2013
8551220 Sulfur dioxide absorbent comprising ionic liquid Oct. 8, 2013
8512449 Oil-soluble triazine sulfide scavenger Aug. 20, 2013
8506683 Absorbent liquid, and apparatus and method for removing CO.sub.2 or H.sub.2S from gas with use of absorbent liquid Aug. 13, 2013
8486183 Alkylamino alkyloxy (alcohol) monoalkyl ether for acid gas scrubbing process Jul. 16, 2013
8466204 Deinking a cellulosic substrate using magnesium hydroxide Jun. 18, 2013
8413462 Systems, materials, and processes for isolating nanoparticles Apr. 9, 2013
8394290 Recovery of alumina trihydrate during the Bayer process using scleroglucan Mar. 12, 2013
8388855 Polyamine/alkali salt blends for carbon dioxide removal from gas streams Mar. 5, 2013
8318077 Collection tubes apparatus, systems, and methods Nov. 27, 2012
8287627 Piperazinium trifluoroacetate compound and carbon dioxide absorbent using the same Oct. 16, 2012
8282540 Centrifuge with polymerizing energy source Oct. 9, 2012
8231719 Absorbent liquid, and apparatus and method for removing CO.sub.2 or H.sub.2S from gas with use of absorbent liquid Jul. 31, 2012
8226842 Composition and method for removal of carbonyl sulfide from acid gas containing same Jul. 24, 2012
8147593 Absorbing solution, method and device for absorbing CO.sub.2 or H.sub.2S or both Apr. 3, 2012
8093303 Process for dewatering a mineral slurry concentrate and increasing the production of a filter cake Jan. 10, 2012
8075673 Absorption medium and method for removing carbon dioxide from gas streams Dec. 13, 2011
7971730 Collection tubes apparatus, systems and methods Jul. 5, 2011
7938887 Acidic gas capture by diamines May. 10, 2011
7775962 Centrifuge with polymerizing energy source Aug. 17, 2010
7673758 Collection tubes apparatus, systems, and methods Mar. 9, 2010
7674388 Photopolymer serum separator Mar. 9, 2010
7659316 Foam composition Feb. 9, 2010
7338617 Process for preparing a flocculant for water treatment Mar. 4, 2008
7329360 Oil recovery and environmental cleanup compositions comprising a polyethylene/vinyl acetate copolymer Feb. 12, 2008
7090970 Composition for blood serum or plasma separation and vessel for blood examination containing the same Aug. 15, 2006
6656377 Inorganic composition, process of preparation and method of use Dec. 2, 2003
6306308 Inorganic composition, process of preparation and method of use Oct. 23, 2001
6077389 Method for deinking Jun. 20, 2000
5897810 Coagulating agent for wastewater Apr. 27, 1999
5789148 Cell separation composition Aug. 4, 1998
5776357 Serum or plasma separating compositions Jul. 7, 1998
5714085 Process for detoxicating noxious wastes and a detoxicating agent used for the process Feb. 3, 1998
5712233 Alkoxylate surfactant compositions and the use thereof in paper deinking Jan. 27, 1998
5643409 Method for deinking wastepaper Jul. 1, 1997
5632382 Heavy liquid for material separations May. 27, 1997
5615862 Metal precipitation composition for treating spent dry film stripping solution Apr. 1, 1997
5560860 Water-based paint spray booth flood sheets and methods of reclaiming paint using the same Oct. 1, 1996
5556557 Method of partitioning blood using polyesters Sep. 17, 1996
5547577 Blood compatible, shear sensitive gels Aug. 20, 1996
5543048 Blood collection assembly with blood compatible, shear sensitive gels Aug. 6, 1996
5527843 Blood separating composition Jun. 18, 1996
5525227 Method for forming blood compatible, shear sensitive gels Jun. 11, 1996
5518615 Blood compatible, shear sensitive gels May. 21, 1996

1 2 3

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