Patents for C10C 3 - Working-up pitch, asphalt, bitumen (3,502)
01/1995
01/17/1995CA1334011C Process for the production of mesophase pitch from isotropic pitch
01/17/1995CA1334010C Process for the production of mesophase pitch
01/05/1995DE4320664A1 Process for producing asphalt using heated, fresh asphalt and heated, worked-up reclaimed asphalt
12/1994
12/28/1994EP0630944A1 Bitumen additive
12/28/1994CN2186243Y Sealed asphalt dissolving furnace
12/28/1994CN2186242Y Moving asphalt heating device
12/23/1994CA2126396A1 Bitumen additive
12/14/1994EP0628067A1 Asphalt composition and process for obtaining same
12/06/1994CA1333374C Binder pitch and method of preparation
11/1994
11/23/1994EP0625179A1 Process for increasing pitch yield from coal tar
11/09/1994EP0623667A2 Used mineral motor oil ecological recycling procedure
11/02/1994EP0621887A1 Improved rubber asphalt mix
11/02/1994CN1026415C Method and equipment for smelting heat conductive oil and heating pipe anti-corrosion asphalt
10/1994
10/29/1994CA2122289A1 Used mineral motor oil ecological recycling procedure
10/19/1994CN1026242C Fused-coal asphalt and preparation method thereof
10/18/1994US5356574 Process for producing pitch based activated carbon fibers and carbon fibers
10/11/1994US5354475 Process for separating polar and non-polar constituents from coal tar distillates
10/04/1994CA1332201C Fluidized-bed reaction apparatus and a fluidizing bed reaction process using the same
10/03/1994CA2118983A1 Upgrading of bitumen by hot water treatment
09/1994
09/15/1994DE4307343A1 Impregnation and binder pitches and their production
09/13/1994US5346615 Precipitation with organic carbonate
08/1994
08/31/1994EP0612344A1 Process for making carbon electrode impregnating pitch from coal tar
08/24/1994CN1025744C Quick heating device for asphalt
08/24/1994CN1025742C A process for preparing a bituminous binder modified with synthetics for construction materials
08/23/1994US5340511 Production of carbon fibre
08/18/1994DE4323256A1 Process for reducing the mixing temperature and the viscosity of bitumen and/or bitumen-bound building material mixtures
08/16/1994US5337965 Method and apparatus for recycling asphalt based roofing material
08/09/1994CA1331332C Dispersions and emulsions
08/02/1994US5334641 Rubber asphalt mix
08/02/1994US5333600 Portable tar melting kettle assembly
07/1994
07/19/1994US5330569 One-step production without air blowing from green phosphoric acid and bituminous material or petroleum residuum
07/13/1994CN1089298A Process for the further processing of the vacuum residue in a crude oil refinery
07/06/1994CN2170947Y Device for quick-heating thick liquid
07/05/1994US5326457 Process for making carbon electrode impregnating pitch from coal tar
06/1994
06/29/1994EP0604258A1 Aqueous bitumen polymer emulsions, their preparation method and their applications
06/22/1994EP0603028A1 Bitumen-polymer compositions, preparation method and application
06/22/1994EP0591218A4 Non-carcinogenic bright stock extracts and deasphalted oils and process for the production thereof
06/15/1994EP0600910A1 Production of hard asphalts by ultrafiltration of vacuum residua
06/15/1994CN2168867Y Pitch dewatering tank by heating
06/14/1994US5320739 Method of producing asphalt having an increased penetration and penetration index
06/08/1994EP0600203A1 Process for further treating a vacuum residue in a refinery
06/08/1994CN2167992Y Automatic asphaltum-oil heating device
06/07/1994CA1329965C Substance for forming lustrous carbon residues from phenol synthesis
05/1994
05/31/1994US5316659 From tar sands, superheated
05/31/1994US5316654 Wiped film evaporation and recovering pitch
05/26/1994WO1994011444A1 Process for improved handling of bitumen
05/03/1994US5308898 Bituminous compositions including residues of thermoplastic polymers with polyurethane foams and thermoset resin, etc.
05/03/1994US5308470 Non-carcinogenic asphalts and asphalt blending stocks
04/1994
04/28/1994DE4336268A1 Emission-free extn esp of bitumen from asphalt - with reduced solvent requirement and without use of chlorocarbon(s)
04/27/1994EP0594301A1 Process for producing pitch based activated carbon fibers
04/27/1994CN2163174Y Bitumen air heating system
04/26/1994US5306750 Polymer containing epoxy compound; storage stability; road paving, roofing
04/26/1994US5306681 Method for recovery or maintaining the activity of hydroisomerization catalysts
04/26/1994US5306415 Oxygenated pitch and processing same
04/13/1994EP0591218A1 Non-carcinogenic bright stock extracts and deasphalted oils and process for the production thereof
04/13/1994CN2161620Y Rubber asphalt felt maceration extract fusion equipment
04/13/1994CN2161619Y Agitating type modified asphalt working-up device
04/10/1994CA2108111A1 Method and apparatus for recycling asphalt based roofing material
03/1994
03/31/1994WO1994006887A1 Process of oxidation of bitumen or the like
03/30/1994CN2159964Y Producing device for madi grease
03/15/1994US5294062 Apparatus for recycling asphalt materials
03/09/1994CN1083511A Process for producing solvated mesophase pitch and carbon artifacts therefrom
03/08/1994US5292473 Process for preparing pitch for matrix
03/03/1994WO1994004727A1 Hydrocarbyl distillation process
03/03/1994CA2136023A1 Hydrocarbyl distillation process
03/02/1994EP0585193A1 Method for the industrial manufacture of carbon-containing mesophase microspheres and derived carbon objects
03/02/1994CN1083090A Hydrocarbyl process by distillation
02/1994
02/22/1994US5288392 Process for converting acid sludge to intermediate sludge
02/17/1994WO1994003559A1 Process for making carbon electrode impregnating pitch from coal tar
02/17/1994CA2120597A1 Process for making carbon electrode
02/16/1994EP0582703A1 Method for preparing bitumen-polymer compositions, application of said compositions to the production of coatings, and mother polymer solution for obtaining said compositions.
02/08/1994US5284509 Method for producing superior quality paving asphalt and product prepared therefrom
02/08/1994CA1326933C Process for producing pitch for carbon materials
02/01/1994US5283045 Sinterable carbon powder and method of its production
01/1994
01/26/1994EP0579973A1 Pitch-based activated carbon fiber
01/26/1994CN1081161A Process for converting acid sludge to intermediate sludge
01/20/1994DE4223246A1 Sepn. of tar from mixts. of tar and solid material - comprising crushing, heating at specific pressure and water treating
01/18/1994CA2009121C Process for the production of petroleum tar pitch for use as a binder in the production of electrodes
01/05/1994EP0577408A2 High compressive strength pitch based carbon fiber
01/05/1994DE4220767A1 Methylene-bis-(N,N-di:alkyl:di:thio:carbamate prodn. for elastomer and lubricant - by reacting sodium-N,N-di:alkyl:di:thio:carbamate(s) with methylene chloride
12/1993
12/21/1993CA1325417C Method for activating infusibilized pitch beads
12/15/1993CN2149395Y Rubbing type equipment for heating and melting asphalt
12/14/1993US5270361 Asphalt composition and process for obtaining same
12/09/1993WO1993024590A1 Process for producing solvated mesophase pitch and carbon artifacts therefrom
11/1993
11/30/1993US5266184 Process for increasing pitch yield from coal tar
11/23/1993CA1324468C Balanced ultra-high modulus and high tensile strength carbon fibers
11/18/1993EP0527865A4 Improved bitumen emulsions
11/16/1993US5262043 Coal tar pitch and the preparation and use thereof
11/09/1993US5259947 Solvated mesophase pitches
11/04/1993DE4213985A1 Prodn. of binders for newspaper printing inks - by mixing asphalt with mineral oil in extruder
10/1993
10/20/1993CN1077395A Asphalt flue gas purifying method
10/14/1993WO1993017076A3 Asphalt composition and process for obtaining same
10/14/1993CA2337131A1 Method and apparatus for effecting gas-liquid contact
10/14/1993CA2337121A1 Method and apparatus for effecting gas-liquid contact
10/13/1993CN2143620Y Hot tube, hot oil type heating asphalt pot
10/06/1993EP0563225A1 Solvated mesophase pitches
09/1993
09/16/1993WO1993018092A1 Method for preparing bitumen-polymer compositions, application of said compositions to the production of coatings, and mother polymer solution for obtaining said compositions
09/16/1993DE4233584A1 Hydrocarbon contg. inorganic sludge sepn. - esp. for treating settling pond sludge in bitumen prodn. from tar sands
09/14/1993CA1322141C Bitumen emulsions and preparation thereof
09/08/1993EP0558682A1 Biodesulfurization of bitumen fuels
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