Patents for C10C 3 - Working-up pitch, asphalt, bitumen (3,502)
10/1987
10/21/1987CN87200011U Coal-saving and low pollution asphalt melting furnace
10/14/1987CN87102482A Process for preparation of hydrocardonaceous distillate and residue, and bitumen compositions containing residue prepared
10/14/1987CN87102480A Process for preparation of bitumen
10/07/1987EP0240090A2 Process for the preparation of bitumen
10/06/1987US4698259 Treatment with lewis acid to form cationic surfactant
09/1987
09/30/1987EP0238787A2 Process for producing a carbon fiber precursor
09/23/1987EP0238136A1 Extraction process
09/16/1987EP0236675A2 Process for producing modified pitch and its use
09/09/1987CN86205289U Energy-saving pollution-free pitch heating furnace
09/02/1987EP0235027A1 Process of fractionating solid asphalts
09/02/1987EP0119273B1 Process for producing pitch
08/1987
08/27/1987WO1987005042A1 Bitumen/aggregate recovery
08/26/1987EP0233185A1 Method for producing anisotropic carbon fibres.
08/19/1987EP0232481A1 Process for fractionating coal tar and use of the obtained fractions
08/18/1987CA1225502A1 Tar fraction for driveway sealers using oxidized coal tar distillate
08/11/1987US4686028 Deasphalting, hydrogeantion
07/1987
07/28/1987CA1224604A1 Custom blended precursor for carbon artifact manufacture and methods of making same
07/08/1987CN86206320U Smoke-free asphalt-melting furnace
07/02/1987WO1987003896A1 Process for the production of bitumens of a high penetration value, apparatus for carrying it out, and products thus obtained
07/01/1987EP0227238A1 Asphaltic composition
06/1987
06/30/1987US4676224 Heating and melting apparatus for melting a substance to be melted
06/24/1987EP0225883A1 Cationic emulsions of bituminous binders of the bitumen/polymer type and cationic emulsifying system usable particularly for obtaining said emulsions.
06/23/1987CA1223225A1 Method for producing a hard pitch and particularly a precursor pitch for production of carbon fibers
06/16/1987US4673486 Process for thermal cracking of residual oils
06/09/1987US4671864 Process for the manufacture of carbon fibers and feedstock therefor
06/02/1987US4670129 Heat treatment of alkyl benzenes
05/1987
05/27/1987EP0223387A1 Process for producing pitch useful as raw material for carbon fibers
05/20/1987EP0222631A1 Process for de-asphalting with energy recuperation during the separation of de-asphalted oil from the de-asphalting solvent
05/20/1987EP0222149A1 A pitch fluoride
05/12/1987US4664774 Heating and oxidation of coal tar oil
05/07/1987WO1987002694A1 Method and apparatus for foaming of bitumen
05/06/1987CN85107558A Method for making high strength modified asphalt paving composition
05/05/1987US4663022 Thermal cracking, heat exchanging, distillation
05/05/1987US4663021 Process of producing carbonaceous pitch
04/1987
04/29/1987EP0219707A1 Optically anisotropic pitch
04/23/1987WO1987002373A1 High strength asphalt cement paving composition
04/14/1987US4657753 Stabilization of pitch fiber
04/07/1987US4655902 Optically anisotropic carbonaceous pitch
03/1987
03/18/1987EP0214171A1 Cationic emulsions of bituminous binders of the bitumen/polymer type and cationic emulsifying system usable particularly for obtaining said emulsions.
03/04/1987CN85105128A Solar energy autotrack heating unit of asphalt
03/03/1987US4647313 Residuum and fatty acid
02/1987
02/25/1987CN86100675A Method of producing coal based needle form coke
02/24/1987US4645584 Mesophase pitch feedstock from hydrotreated decant oils
02/24/1987US4644932 Method and device for energy recovery by manufacturing of asphalt in bulk
02/03/1987US4640822 Apparatus for producing bulk mesophase
02/03/1987US4640761 Heat treating coal tar or coal tar pitch, then centrifuging
01/1987
01/29/1987DE3630789A1 Process for producing oxidation bitumen by reaction with air in the presence of free radical-formers
01/28/1987CN85105609A Method for hydrogenation of coal tar pitch
01/27/1987US4639307 Mixing bitumen with feric chloride without air-blowing
01/20/1987US4637417 Use of a submersible viscometer in the primary separation step of the hot water process for recovery of bitumen from tar sand
01/08/1987DE3524083A1 Melt vessel
12/1986
12/23/1986US4631181 Process for producing mesophase pitch
12/16/1986US4629510 One step process
11/1986
11/26/1986EP0202318A1 Process for extracting soluble ingredients from insoluble bulk materials
11/25/1986US4624807 Petroleum or coal pitch, thermocracking
11/25/1986CA1214476A1 Resinous petroleum residue refractory binders
11/18/1986US4623395 Method for producing industrial asphalts without air-blowing using maleic anhydride
11/12/1986EP0201213A2 Stabilization of pitch fiber
11/12/1986EP0200965A1 Pitch for production of carbon fibers
11/05/1986CN86200739U Three group device for asphalt emulsion complete equipment
11/04/1986US4620919 Pitch for the production of carbon fibers
10/1986
10/22/1986EP0198471A2 Method of purifying the starting material for use in the production of carbon products
10/21/1986US4618373 Air-blowing asphalt using hydrohalic acid catalysts
10/21/1986US4618372 Method for producing industrial asphalts without air-blowing using hydrobromic acid
09/1986
09/16/1986US4611978 Production line for bitumen cakes
09/03/1986CN85109263A Low solids content, coal tar based imppregnating pitch
08/1986
08/28/1986WO1986004916A1 Cationic emulsions of bituminous binders of the bitumen/polymer type and cationic emulsifying system usable particularly for obtaining said emulsions
08/28/1986WO1986004915A1 Cationic emulsions of bituminous binders of the bitumen/polymer type and cationic emulsifying system usable particularly for obtaining said emulsions
08/26/1986US4608150 Carbon fibers
08/19/1986US4606903 Membrane separation of uncoverted carbon fiber precursors from flux solvent and/or anti-solvent
08/19/1986US4606808 Method for the preparation of pitches for spinning carbon fibers
08/05/1986CA1209293A1 Preparation of bitumen-polymer compounds, their use as pavement coatings, and polymeric mother solution for said compounds
07/1986
07/29/1986CA1208592A1 Post-treatment of spinnable precursors from petroleum pitch
07/29/1986CA1208591A1 Process for preparing a pitch suitable for spinning into carbon fibers
07/23/1986EP0187947A1 Solvent for refining of residues
07/22/1986US4601813 Process for producing optically anisotropic carbonaceous pitch
07/15/1986US4600496 Pitch conversion
07/08/1986CA1207264A1 Pitch for direct spinning into carbon fibers derived from a cat cracker bottoms feedstock
07/03/1986WO1986002952A3 Method for producing anisotropic carbon fibres
07/01/1986US4597853 Heat treatment of heavy residual oil
06/1986
06/24/1986US4596652 Residual oil is catalytic cracking bottom
06/10/1986CA1205767A1 Demulsification of bitumen emulsions using polyureas
06/05/1986WO1986003134A1 Process for extracting soluble ingredients from insoluble bulk materials
06/04/1986EP0182937A1 Method of making an asphalt coating composition by using an asphalt concrete recycling material, and asphalt coating composition produced according to the method
06/03/1986US4592831 Solvent for refining of residues
06/03/1986CA1205406A1 Retorting extractor of hydrocarbons from any solid material especially tar sand, and the process of extraction
05/1986
05/27/1986US4591424 Thermocracking residual oil, removal of mesophase
05/27/1986CA1205033A1 Mesophase pitch feedstock from hydrotreated decant oils
05/22/1986WO1986002952A2 Method for producing anisotropic carbon fibres
05/20/1986US4590055 Pitch-based carbon fibers and pitch compositions and precursor fibers therefor
05/20/1986US4589975 Method of producing a precursor pitch for carbon fiber
05/20/1986US4589974 Carbon fibers
04/1986
04/22/1986US4584023 Method for producing industrial asphalts without air-blowing using phytic acid
04/15/1986US4582591 Process for the separation of resinous substances from coal-base heavy oils and use of the fraction obtained
04/15/1986CA1203190A1 Pitch demetalization by destruction distillation
04/09/1986EP0177339A2 Method of producing precursor pitches for carbon fibres
04/08/1986US4581124 Continous processing with prevention of coke formation
04/08/1986US4581123 Custom blended precursor for carbon artifact manufacture
04/01/1986US4579645 Starting pitch for carbon fibers
04/01/1986US4578877 Process for controlling fines entrainment while drying solids
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