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Class Information
Number: 208/41
Name: Mineral oils: processes and products > Asphalts, tars, pitches and resins; making, treating and recovery > By distillation
Description: Processes wherein asphalt, tar, pitch or resin is obtained by a distillation of an oil feed under nonconversion conditions.


Sub-classes under this class:

Class Number Class Name Patents
208/42 Tar feed 29


Patents under this class:

Patent Number Title Of Patent Date Issued
7465387 Coal tar and hydrocarbon mixture pitch and the preparation and use thereof Dec. 16, 2008
7393449 Petroleum hydrocarbon binder with reduced polycyclic aromatic hydrocarbon content Jul. 1, 2008
7341656 Continuous oxidation and distillation process of heavier hydrocarbon materials Mar. 11, 2008
7318890 Pitch fractionation and high softening point pitch Jan. 15, 2008
7318891 Noah's pitch process Jan. 15, 2008
7220348 Method of producing high softening point pitch May. 22, 2007
7208570 Method of refining tall oil Apr. 24, 2007
7066997 Coal tar and hydrocarbon mixture pitch and the preparation and use thereof Jun. 27, 2006
7033485 Coal tar and hydrocarbon mixture pitch production using a high efficiency evaporative distillation process Apr. 25, 2006
6878263 Rubber process oil and production process thereof Apr. 12, 2005
6605208 Process for reduction of emissions in asphalt production Aug. 12, 2003
6352637 High coking value pitch Mar. 5, 2002
6319392 Coal tar extract with reduced aromatic hydrocarbon content, method for obtaining same and dermatological and cosmetic compositions Nov. 20, 2001
6194344 Process for preparing carbonaceous material carrying ultrafinely dispersed metal Feb. 27, 2001
6048447 Asphalt compositions containing solvent deasphalted bottoms and rerefined lube oil bottoms, and their preparation Apr. 11, 2000
5958365 Method of producing hydrogen from heavy crude oil using solvent deasphalting and partial oxidation methods Sep. 28, 1999
5746906 Coal tar pitch blend having low polycyclic aromatic hydrocarbon content and method of making thereof May. 5, 1998
5728291 Demetallation - high carbon conversion process, apparatus and asphalt products Mar. 17, 1998
5605618 Process for preparing nitrogen-containing isotropic pitch and nitrogen-containing isotropic pitch Feb. 25, 1997
5601697 Demetallation-High carbon conversion process, apparatus and asphalt products Feb. 11, 1997
5534137 Process for de-ashing coal tar Jul. 9, 1996
5326457 Process for making carbon electrode impregnating pitch from coal tar Jul. 5, 1994
5316654 Processes for the manufacture of enriched pitches and carbon fibers May. 31, 1994
5314609 Process for preparing debenzolized tar and low-benzene centrifuged tar sludge May. 24, 1994
5279971 Method for determining a binder content of bituminous building materials Jan. 18, 1994
5262043 Coal tar pitch and the preparation and use thereof Nov. 16, 1993
5192421 Integrated process for whole crude deasphalting and asphaltene upgrading Mar. 9, 1993
5120424 Binder pitch for an electrode and process for its manufacture Jun. 9, 1992
5081046 Method for determining the binder content of bituminous building materials Jan. 14, 1992
5061413 Process for producing pitch-based carbon fibers Oct. 29, 1991
5000835 Method of reducing H.sub.2 S in asphalt Mar. 19, 1991
4997542 Impregnation pitch with improved filterability and process for its manufacture Mar. 5, 1991
4976845 Process for increasing meso phase contents in pitch Dec. 11, 1990
4961837 Process for the production of petroleum tar pitch for use as a binder in the production of electrodes Oct. 9, 1990
4931162 Process for producing clean distillate pitch and/or mesophase pitch for use in the production of carbon filters Jun. 5, 1990
4897176 Method of preparing baseoil blend of predetermined coking tendency Jan. 30, 1990
4789456 Process for preparing mesophase pitches Dec. 6, 1988
4755277 Process for the preparation of a hydrocarbonaceous distillate and a residue Jul. 5, 1988
4671864 Process for the manufacture of carbon fibers and feedstock therefor Jun. 9, 1987
4624807 Process for producing microspherical, oil-containing carbonaceous particles Nov. 25, 1986
4608150 Pitch material for carbonaceous body and a method for the preparation thereof Aug. 26, 1986
4575411 Process for preparing precursor pitch for carbon fibers Mar. 11, 1986
4271006 Process for production of carbon artifact precursor Jun. 2, 1981
4086156 Pitch bonded carbon electrode Apr. 25, 1978
4055583 Method for the production of carbonaceous articles, particularly strands Oct. 25, 1977
4048056 Method for the control of pitch operation Sep. 13, 1977
4026788 Process for producing mesophase pitch May. 31, 1977
4017378 Binders for electrodes Apr. 12, 1977
3989616 Production of lubricating oils blending stocks and selected components for asphalt production Nov. 2, 1976



 
 
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