Patents for C10C 3 - Working-up pitch, asphalt, bitumen (3,502)
04/1982
04/13/1982US4324651 Solvent extraction of mineral oil with methanol
03/1982
03/09/1982US4318619 Method of and apparatus for asphaltic concrete hot mix recycling
03/09/1982US4318475 Asphalt container
03/02/1982US4317809 Carbon fiber production using high pressure treatment of a precursor material
02/1982
02/23/1982US4316829 Modified asphalt compositions
02/16/1982US4315815 Process for separating bituminous materials and recovering solvent
02/10/1982EP0045662A1 Modified bitumens and production thereof
02/09/1982CA1117863A1 Recovery of petroleum from viscous petroleum-containing formations including tar sands
01/1982
01/27/1982EP0044761A2 Process of preparation of a mesophase pitch for producing carbon fibers
01/27/1982EP0044714A2 Process for producing mesophase pitch
01/27/1982EP0044339A1 Current mirror circuit.
01/26/1982US4312742 Process for the production of a petroleum pitch or coke of a high purity
01/12/1982US4310422 Method of processing and recirculating filtration residues
12/1981
12/22/1981US4306961 Process for recovery of hydrocarbons from inorganic host materials
12/15/1981US4305814 Energy efficient process for separating hydrocarbonaceous materials into various fractions
12/15/1981US4305812 Solvent deasphalting by polarity gradient extraction
12/15/1981CA1114318A1 Method for reducing the quinoline-insolubles content of coal tar pitch
12/08/1981CA1113876A1 Forming optically anisotropic pitches
12/01/1981US4303631 From pitch
11/1981
11/17/1981US4301051 With a rubbery polymer and crosslinking agent
10/1981
10/28/1981EP0038669A1 Process for preparing a pitch suitable for carbon fiber production
10/27/1981US4297646 Current mirror circuit
10/13/1981CA1110565A1 Process and apparatus for the separation of hydrocarbons from petroleum bearing materials
09/1981
09/29/1981US4292371 Asphalt compositions modified with organo silane compounds
09/15/1981CA1108807A1 Neomesophase formation
09/02/1981EP0034896A2 Treatment of heterogeneous liquid materials
08/1981
08/26/1981EP0034410A2 Process for the preparation of a feedstock for carbon artifact manufacture
08/26/1981EP0034305A2 Process for working-up and recycling filtration residues
08/11/1981US4283269 Process for the production of a feedstock for carbon artifact manufacture
08/11/1981US4283231 Heating until hydrogen sulfide evolution ceases
08/06/1981WO1981002233A1 Current mirror circuit
07/1981
07/21/1981US4279865 Organic compound oxidation plant
07/21/1981US4279739 Process for separating bituminous materials
07/14/1981US4278530 Process for separating bitumen from a bitumen sand deposit
07/14/1981US4278529 Process for separating bituminous materials with solvent recovery
07/14/1981US4278470 Bituminous composite reinforced with a filler coated with the reaction product of bitumen and an organosilicon compound
07/07/1981US4277325 Fluxing with an organic liquid, separation of solids, staged precipitation of pitch with organic antisolvent
07/07/1981US4277324 Fluxing with organic liquid to form suspension of quinoline-insoluble material which is removed, precipitation of pitch
06/1981
06/30/1981US4276246 Expansion by thermal decomposition of blowing agent
06/30/1981CA1104081A1 Method of transporting liquid pitch containing coke and apparatus therefor
06/23/1981CA1103837A1 Bituminous compounds with improved rheological properties
06/16/1981US4273685 Reacted with polymerizable aromatic vinyl monomer, paving, roofing
06/16/1981US4273675 Process for the preparation of spherical carbon particles and spherical activated carbon particles
06/16/1981US4273644 Pressure reduction and steam stripping
06/16/1981US4273588 Bitumens, ammonia or amine
06/16/1981CA1102962A1 Low molecular weight mesophase pitch
06/09/1981US4272501 Carbon fibers from SRC pitch
06/09/1981CA1102728A1 Demulsifying petroleum emulsions with polyalkylene oxide resins and alkali metal halides
06/02/1981US4271006 Process for production of carbon artifact precursor
06/02/1981US4270609 Mixtures of floating agents and transfer agents
05/1981
05/26/1981US4269693 Process for recovering bitumen from waste bituminous products
04/1981
04/29/1981EP0027739A1 Process for producing mesophase pitch and process for producing carbon fibers
04/28/1981CA1100075A1 Process for manufacturing bitumen
04/28/1981CA1100074A1 Process aids for the conditioning step in the hot water extraction process for tar sand
04/28/1981CA1100073A1 Crushed shale is subjected to a leaching treatment prior to final comminution thereof
04/08/1981EP0026647A1 Mesophase pitch, processes for its production and fibers produced therefrom
04/08/1981EP0026200A1 A method of recovering high-grade fuel from solid mineral-fuel raw material.
04/07/1981US4260423 Kiln tar binder and method of producing it
03/1981
03/31/1981US4259171 Process for the separation of quinoline-insoluble components from coal tar pitch
03/24/1981US4257870 Solidification, pulverization
03/24/1981US4257778 Thermocracking
02/1981
02/10/1981US4250017 Process and apparatus for separating tar from a tar sand mixture
02/03/1981US4248936 Asphalt-coated glass fibers
01/1981
01/07/1981EP0021708A1 Preparation of an optically anisotropic pitch precursor material
01/06/1981US4243513 Method of increasing yield of petroleum pitch
01/06/1981US4243512 Process for preparation of pitch for producing carbon fiber
01/06/1981US4243426 Bitumens, unsaturated silane, coating glass fibers
12/1980
12/30/1980US4242246 Process for the preparation of bituminous compositions making use of a mother solution containing polymers and sulfur
12/30/1980US4242196 Mass production system of highly aromatic petroleum pitch
12/30/1980US4242195 Extraction of tar sands or oil shale with organic sulfoxides or sulfones
12/23/1980US4240898 Process for producing high quality pitch
12/23/1980US4240897 Oil sands hot water extraction process
12/16/1980US4239547 Crushing, heating, reaction with sulfur
12/02/1980US4237052 Method for the preparation of bitumens modified by polymers
12/02/1980US4236995 Process for recovering bitumen from tar sand
11/1980
11/04/1980US4231857 Process for preparing petroleum-derived binder pitch
10/1980
10/21/1980US4229281 Process for extracting bitumen from tar sands
10/21/1980US4229221 Method for producing refractories
10/16/1980WO1980002152A1 A method of recovering high-grade fuel from solid mineral-fuel raw material
10/15/1980EP0017394A2 Container for containment of bituminous products
10/15/1980EP0016759A1 Foamed polymeric material based on polyisocynate and the reaction product of bitumen and castor oil and intermediate products for producing this material.
10/07/1980US4226690 Process for dehydration and demineralization of diluted bitumen
10/07/1980US4226633 Raw composition for carbon articles
10/01/1980EP0016661A2 Preparation of an optically anisotropic deformable pitch precursor
09/1980
09/23/1980US4224138 Process for recovering bitumen from oil sand
09/23/1980US4224079 Asphaltic paving compositions and method of preparation from solvent refined coal
09/16/1980US4222851 Recovery of asphalt shingle components by solvent extraction
09/16/1980CA1085762A1 Grinding as a means of reducing flocculant requirements for destabilizing sludge (tailings)
09/16/1980CA1085760A1 Process for recovering bitumen from tar sand
09/02/1980US4220474 Amorphous refractory compositions
08/1980
08/26/1980US4219404 Vacuum or steam stripping aromatic oils from petroleum pitch
08/19/1980CA1083992A1 Continuous thermal cracking of reduced crude oil residuum
08/12/1980US4217202 Process for selective recovery of relatively metals-free bitumen from tar sand using a halogenated aliphatic solvent in combination with a second solvent
08/06/1980EP0013946A1 Apparatus for mixing asphalt-aggregate compositions
08/05/1980CA1083063A1 Synthetic asphalt and its production
07/1980
07/29/1980CA1082628A1 Chemical pitch
07/08/1980US4211633 Separation of asphaltic materials from heptane soluble components in liquified solid hydrocarbonaceous extracts
07/08/1980US4211576 Scrap rubber a petroleum from refinery bottoms
06/1980
06/24/1980US4209500 Low molecular weight mesophase pitch
06/23/1980EP0016759A4 Foamed polymeric material based on polyisocynate and the reaction product of bitumen and castor oil and intermediate products for producing this material.
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