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Class Information
Number: 208/24
Name: Mineral oils: processes and products > Paraffin wax; treatment or recovery
Description: Processes for the treatment, preparation, separation or purification of paraffin waxes wherein the product retain its identity as a wax.










Sub-classes under this class:

Class Number Class Name Patents
208/27 Chemical treatment (refining or modification except mere solvent extraction) 234
208/28 Separation of paraffin from oil (e.g., dewaxing) 99
208/26 With sorption agents 5
208/25 With ureas 11


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8669401 High shear process for producing micronized waxes Mar. 11, 2014
8658018 Lubricant base oil blend having low wt% noack volatility Feb. 25, 2014
8506888 High shear hydrogenation of wax and oil mixtures Aug. 13, 2013
8480880 Process for making high viscosity index lubricating base oils Jul. 9, 2013
8450539 High shear process for producing micronized waxes May. 28, 2013
8273137 Fuel composition Sep. 25, 2012
8192612 Base oil slate prepared from a waxy feed Jun. 5, 2012
8063004 Chemical composition of matter for the liquefaction and dissolution of asphaltene and paraffin sludges into petroleum crude oils and refined products at ambient temperatures and method of use Nov. 22, 2011
8012342 Lubricant base oil and method of producing the same Sep. 6, 2011
7956018 Lubricant composition Jun. 7, 2011
7951287 Production of low sulfur, moderately aromatic distillate fuels by hydrocracking of combined Fischer-Tropsch and petroleum streams May. 31, 2011
7951759 Fischer-Tropsch wax composition and method of transport May. 31, 2011
7875166 Microcrystalline paraffin Jan. 25, 2011
7862893 Paraffinic wax particle coated with a powder coating Jan. 4, 2011
7754066 Method of making base oil from transported wax Jul. 13, 2010
7754065 Wax transport process Jul. 13, 2010
7641786 Method of analyzing basestocks for low temperature properties Jan. 5, 2010
7642095 Method of analyzing basestocks for low temperature properties Jan. 5, 2010
7578926 Process to enhance oxidation stability of base oils by analysis of olefins using A.sup.1H NMR Aug. 25, 2009
7531081 Base oil composition May. 12, 2009
7402236 Process to make white oil from waxy feed using highly selective and active wax hydroisomerization catalyst Jul. 22, 2008
7214307 White oil from waxy feed using highly selective and active wax hydroisomerization catalyst May. 8, 2007
6790386 Dielectric fluid Sep. 14, 2004
6787022 Winter diesel fuel production from a fischer-tropsch wax Sep. 7, 2004
6695965 Process for adjusting the hardness of Fischer-Tropsch wax by blending Feb. 24, 2004
6635681 Method of fuel production from fischer-tropsch process Oct. 21, 2003
6431253 Method of recovering and refining filler from a lost wax composition Aug. 13, 2002
6420618 Premium synthetic lubricant base stock (Law734) having at least 95% noncyclic isoparaffins Jul. 16, 2002
6365037 Production process of low pour-point oil Apr. 2, 2002
6352098 Method of recovering and refining filler from a lost wax composition Mar. 5, 2002
6294076 Fischer-Tropsch wax and hydrocarbon mixtures for transport (law938) Sep. 25, 2001
6284127 Catalytic dewaxing with trivalent rare earth metal ion exchanged ferrierite Sep. 4, 2001
6268401 Fischer-tropsch wax and crude oil mixtures having a high wax content Jul. 31, 2001
6074548 Process for obtaining paraffin or paraffin fractions Jun. 13, 2000
6066250 Method for reclaiming investment casting wax compositions and the compositions obtainable thereby May. 23, 2000
6042715 Method for modeling the crystallization of paraffins in petroleum fluids Mar. 28, 2000
6013171 Catalytic dewaxing with trivalent rare earth metal ion exchanged ferrierite Jan. 11, 2000
6008164 Lubricant base oil having improved oxidative stability Dec. 28, 1999
RE36272 Wax craft product and method of manufacturing Aug. 17, 1999
5922189 Process to refine petroleum residues and sludges into asphalt and/or other petroleum products Jul. 13, 1999
5904834 Synthetic wax for food applications May. 18, 1999
5847209 Process for recovery of solid and reusable urea from the urea adduction process Dec. 8, 1998
5718821 Copolymers of ethylenically unsaturated carboxylic acid esters with polyoxyalkylene ethers of lower, unsaturated alcohols as flow-improving agents for paraffin containing oils Feb. 17, 1998
5547562 Oil dewaxing method Aug. 20, 1996
5457253 Oxide addition to noble metal on rare earth modified silica alumina as hydrocarbon conversion catalyst Oct. 10, 1995
5374190 Wax craft product and method of manufacturing Dec. 20, 1994
5370788 Wax conversion process Dec. 6, 1994
5365003 Shape selective conversion of hydrocarbons over extrusion-modified molecular sieve Nov. 15, 1994
5306681 Method for recovery or maintaining the activity of hydroisomerization catalysts Apr. 26, 1994
5292426 Wax conversion process Mar. 8, 1994

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