Reconditioning oil used in cold working metal

Reconstituted asphalt paving compositions

Recording materials with new hydrophilic protective coatings...

Recovering tar from tar sand

Recovering useful oil from wax filter hot washings and...

Recovery and handling of asphalt containing a high...

Recovery and recycle of dewaxing aid

Recovery of a carbonaceous liquid with a low fines content

Recovery of alkali metal constituents from coal conversion...

Recovery of bitumen and separation of solids from middlings...

Recovery of bitumen from bituminous oil-in-water emulsions

Recovery of bitumen from bituminous sand

Recovery of bitumen from bituminous sand with control of...

Recovery of bitumen from froth treatment tailings

Recovery of bitumen from settling cell tailings of hot water...

Recovery of bitumen from sludge resulting from hot water...

Recovery of bitumen from sludge resulting from hot water...

Recovery of bitumen from sludge resulting from hot water...

Recovery of bitumen from sludge resulting from hot water...

Recovery of bitumen from sludge resulting from hot water...