摘要:
The present invention generally relates to the field of treating oil sand fine tailings. A process for drying fine tailings, which may use a pipeline reactor system, comprises providing an in-line flow of the fine tailings; continuously introducing a flocculent solution to cause dispersion and commence flocculation of the fine tailings and may comprise rapid turbulent mixing; subjecting the fine tailings to flocculation and water release conditioning in-line to cause formation and rearrangement of floes and increasing the yield shear stress to form flocculated fine tailings while avoiding over-shearing of the floes; and depositing the fine tailings to allow the release of water, formation of a non- flowing fine tailings deposit and drying of the non-flowing fine tailings deposit. The process enables effective in-line dispersion, flocculation and water release, resulting in reliable deposition and drying of the fine tailings deposit.
摘要:
A process for the production of coated carbonaceous particles including: providing a carbon residue forming material; providing particles of a carbonaceous material; mixing the carbon residue forming material and the particles of a carbonaceous material at an elevated temperature; depositing a coating of the carbon residue forming material onto the surface of the particles; and stabilizing the coated particles by subjecting the particles to an oxidation reaction. These coated carbonaceous particles are particularly useful in the manufacture of electrodes in electrical storage cells, particularly in rechargeable electrical storage cells.
摘要:
Method (1) for producing improved bituminous granulate from exhausted polymeric bituminous membranes or manufacturing waste of polymeric bituminous membranes, the method comprising the following steps: A. obtain a sample of the abovesaid polymeric bituminous membranes; B. assessing the chemical-physical properties of the sample thereby obtained; C. grinding the polymeric bituminous membranes until a bituminous granulate is obtained, the bituminous granulate having average dimensions lower than or equal to 15 mm, optionally lower than or equal to 5mm, more optionally lower than or equal to 2 mm; D. mixing the bituminous granulate with at least one filler, selected by type and quantity based on the assessed chemical-physical properties of the sample at step B, until a bituminous granulate having a bitumen concentration greater than or equal to 75% is obtained.
摘要:
A machine (1) for shredding portions of bituminous material in the solid-state into granules in the solid-state (42). The machine (1) comprises a pressing member (7) provided with a piston (18) which is axially mobile inside a perforated tubular body (6) along an axis (A) and is provided on the head thereof with an internal concave portion having a shape substantially complementary to a projecting part (21) present in an axial end of the perforated tubular body (6). On the head of the piston (18) through-openings (23) are made, which extend radially along a direction approximately transversal to the axis (A) and are in communication with the internal space of the concave portion (22) .
摘要:
Disclosed is a method for preparing a solid bitumen material at ambient temperature, said method comprising at least the steps of: a) preparing a stabilized emulsion of bitumen drops in a water phase that has a pH of 2 to 4; b) preparing a silica sol or silica gel from a first silicon oxide precursor that has a pH of 2 to 4; c) mineralizing the emulsion of bitumen drops from step a) with the silica sol or gel from step b); d) mineralizing the emulsion of bitumen drops from step c) having a maximum pH of 1 with a second silicon oxide precursor; e) separating the material from the water phase.
摘要:
Disclosed is a method for preparing a solid bitumen material at ambient temperature, said method comprising at least the steps of: a) preparing an emulsion of bitumen drops in a water phase; b) preparing a silica sol or silica gel from a silicon oxide precursor that has a pH of 4 to 8; c) bringing the emulsion of bitumen drops from step a) into contact with the silica sol or silica gel from step b); d) subjecting the bitumen suspension from step c) to an atomization treatment.
摘要:
The present invention generally relates to the field of treating oil sand fine tailings. A process for drying fine tailings, which may use a pipeline reactor system, comprises providing an in-line flow of the fine tailings; continuously introducing a flocculent solution to cause dispersion and commence flocculation of the fine tailings and may comprise rapid turbulent mixing; subjecting the fine tailings to flocculation and water release conditioning in-line to cause formation and rearrangement of flocs and increasing the yield shear stress to form flocculated fine tailings while avoiding over-shearing of the flocs; and depositing the fine tailings to allow the release of water, formation of a non- flowing fine tailings deposit and drying of the non-flowing fine tailings deposit. The process enables effective in-line dispersion, flocculation and water release, resulting in reliable deposition and drying of the fine tailings deposit.
摘要:
A continuous process for fractioning, combination, and recombination of asphalt sources into asphalt components for pelletization of asphalt and asphalt-containing products such that the pellets formed are generally uniform in dimension, freely flowing, free from agglomeration, and the pelletized asphalt is packaged, and preferably compatibly packaged, for additional processing and applications.