| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 121 | Process and apparatus for disengaging and separating bitumen from pulverized tar sands using selective cohesion | US485462 | 1990-02-27 | US5066388A | 1991-11-19 | Lena Ross |
| Process and apparatus for disengaging organic, bituminous material from pulverized bituminous ores and for recovering a concentrated mixture of the bituminous material and water. Wherein the apparatus comprises a pulverizer to pulverize the ores to be processed to particles not larger than 1/4 inch in size and inner and outer process vessels which are preferably combined into a unitary assembly and wherein the process comprises a combination of mechanical and hot water disengagement of the organic, bituminous materials from the mineral ore solids, i.e., sand and wherein the disengagement step comprises a high shearing of the mineral solids so as to disengage the bituminous material from the ore and to produce a mixture of disengaged bituminous material, water and mineral ore solids which mixture is then introduced into a body of water so that the bituminous materials and the mineral ore solids will separate into distinct concentrated zones with the bituminous material and the mineral then being recovered separately from the separate zones, with the bituminous material being collected on a colled surface. | ||||||
| 122 | Method for recovery of hydrocarbons form contaminated soil or refuse materials | US360313 | 1989-06-02 | US5019245A | 1991-05-28 | Teresa Ignasiak; Ali A. Turak; Wanda Pawlak; Boleslaw L. Ignasiak; Carlos R. Guerra; Melvin L. Zwillenberg |
| A method is provided for separating an inert solid substantially inorganic fraction comprising sand or soil from a tarry or oily organic matter in a feedstock. The feedstock may be contaminated soil or tarry waste. The feedstock is combined with pulverized coal and water. The ratio (oil or tar to dry weight of coal) of about 1.0:10 to about 4.0:10 at a temperature in the range of 60.degree.-95.degree. C. The mixture is agitated, the coarse particles are removed, and up to about 0.10% by weight (based on weight of coal) of a frothing agent is added. The mixture is then subjected to flotation, and the froth is removed from the mixture. | ||||||
| 123 | Low temperature bitumen recovery process | US328420 | 1989-03-24 | US4946597A | 1990-08-07 | Kohur N. Sury |
| A low temperature process for separating bitumen from tarsands comprises slurrying tarsands in water at a temperature in the range of above about freezing to 35.degree. C., preferably in the range of 2.degree. to 15.degree. C., mixing said aqueous slurry with a conditioning agent for a time sufficient to release bitumen from tarsands and to uniformly disperse the conditioning agent on the bitumen, and subjecting the resulting slurry to froth flotation for recovery of a bitumen product and production of sand tails. The process can be integrated with dredge or dry mining of the tarsands wherein the tarsands are normally sheared by a rotary cutter or bucket wheel and slurried with water by a slurry pump under attrition mixing conditions, with waterjet mining of tarsands in open pits wherein the resulting slurry can be collected by mechanical equipment, slurry pumps or the like gathering equipment, the resulting slurry fed to a pipeline and the conditioning agent added to the slurry pipeline for mixing with the slurry, or with borehole mining of tarsands wherein high pressure jets of water or water with conditioning agent disintegrates the tarsands in situ for initial slurrying of the tarsands. The conditioning agent preferably is a flotation agent having the characteristics of kerosene, diesel or kerosene/diesel together with a frother having the characteristics of methyl-isobutyl-carbinol and can be mixed with the aqueous slurry by attrition scrubbing or by flotation cell mixing. The slurry may contain up to 70% by weight tarsands and normally is adjusted by dilution to 15 to 30% by weight tarsands in water prior to froth flotation in one or two stages. | ||||||
| 124 | Process for beneficiating oil shale using froth flotation and selective flocculation | US768979 | 1985-08-22 | US4673133A | 1987-06-16 | Rabinder S. Datta; Frank F. Aplan; Charles Zebula |
| A process for beneficiating oil shale is disclosed including the steps of grinding the shale to fine particles in an aqueous medium, portions of which are kerogen-rich and kerogen-poor, scrubbing the particles, separating the particles by either selectively flocculating out a fraction, redispersing the fraction and reseparating using froth flotation, or vice versa, and oil agglomerating/dewatering the kerogen-rich fraction. | ||||||
| 125 | Rotative grizzly for oil sand separation | US381425 | 1982-05-24 | US4635860A | 1987-01-13 | Jan Kruyer |
| A rotating grizzly having a downwardly slanting axis of rotation for reducing the size of agglomerated mineral particles comprising a rotatable framework made up from a series of spaced axial baffles interconnected by a series of parallel spaced bars wherein the baffles extend inwardly toward the axis of rotation a greater distance than the bars. | ||||||
| 126 | Oil shale beneficiation by size reduction combined with heavy media separation | US542821 | 1983-10-17 | US4528090A | 1985-07-09 | Tien-Fung Tsui |
| This invention discloses a method of enriching raw oil shale by crushing and pulverizing raw oil shale or similar oil bearing materials into smaller, lean oil particles and larger, oil rich particles; floating the larger, oil rich particles in a heavy media organic liquid which causes the oil rich lighter particles to float on the surface and causes the heavier, mineral containing particles to sink. The floating larger, oil rich particles thus obtained contain increased percentages of oil bearing constituents. | ||||||
| 127 | Separator | US608262 | 1984-05-08 | US4519848A | 1985-05-28 | Gene E. Underwood |
| A separator for cleaning material from particles such as oil from sand. A container is provided having upper wall structure with an opening formed therethrough leading to an annular zone extending radially outward from the opening. A cone shaped baffle has an upper open end coupled to the opening and a lower end flaring downward and outward into the container with the lower end of the baffle being located close to but spaced from the side wall of the container. Means is provided for injecting the sand to be cleaned into the upper portion of the container above the baffle. Means is provided for injecting water into the upper portion of the container above the baffle in a direction to cause the sand to swirl downward into the container below the baffle and around the side wall of the container for causing the oil to be removed from the sand. The oil flows upward through the open end of the baffle and through the opening and into the annular zone for removal and the water and sand flow downward through a lower outlet in the container. Gas is injected into the container through the side wall to facilitate the flow of oil upward through the open end of the baffle and through the opening. | ||||||
| 128 | Ambient froth flotation process for the recovery of bitumen from tar sand | US308491 | 1981-10-05 | US4425227A | 1984-01-10 | Scott L. Smith |
| A method for upgrading the bitumen content of tar sands, wherein a raw tar sand slurry admixture of tar sands, water, collectors, and dispersing/wetting agents is milled; conditioned and then separated by a series of froth flotations at ambient temperatures from about 2.degree. C. to about 25.degree. C. to recover a concentrated bitumen tar sand product which may be processed by conventional means to recover oil from the bitumen. Enhanced recovery of bitumen may be accomplished by moderate heating in one or more of the flotation zones to about 50.degree. C. The method permits recovery and recycle of various components used in processing of the tar sand. | ||||||
| 129 | Method of purifying soil polluted by oil | US288455 | 1981-07-30 | US4415368A | 1983-11-15 | Hendrik A. Kroon |
| A method of purifying hydrocarbon polluted soil. The polluted soil, mixed with water and air, is sucked into a conduit. Meanwhile, water under high pressure is ejected from a jet pipe as a substantially conical water curtain. The sucked-in soil is then passed through the water curtain, which removes the pollutants, and the thereby-purified soil-water mixture is ejected. | ||||||
| 130 | Decarbonation of tailings sludge to improve settling | US416729 | 1982-09-10 | US4414117A | 1983-11-08 | Raymond N. Yong; Amar J. Sethi |
| Carbonates and bicarbonates are removed from the sludge of tar sands tailings ponds whereby solids settle from the sludge more rapidly than in the presence of the carbonates and/or bicarbonates. Hydrolyzed starch is used as a flocculant in the process and alcohol may also be used to assist in the settling and/or to improve the characteristics of the settled sludge for subsequent dewatering. | ||||||
| 131 | Treatment of heterogeneous liquid materials | US234491 | 1981-02-17 | US4396498A | 1983-08-02 | Mario Dente; Aldo Corti; Livio Antonelli; George O. Jackson |
| The invention relates to a continuous process for treatment of feed in the form of a heavy hydrocarbon-water dispersion or dispersions. The feed is diluted with a hydrocarbon solvent and contacted in a contactor with a water stream. A product stream containing bitumen oils and a discard stream comprising water and solids are separately removed from the contactor. | ||||||
| 132 | Process for separating bitumen from a bitumen sand deposit | US63867 | 1979-08-06 | US4278530A | 1981-07-14 | Zenas Crocker; Wilford B. Jonah |
| A process is disclosed for separating bitumen from a bitumen tar deposit. The process is a mechanical separation process which is simple, economical and yet does not require high energy consumption. The bitumen sand deposit includes sand particles with coating of bitumen thereon. The process comprises the steps of feeding the bitumen sand deposit and a dispersing medium into an enclosed container having a plurality of arms therein, adapted to rotate about a central axis, each arm having a blade at the end thereof, rotating the plurality of arms, striking and impelling the sand particles to impact on internal surfaces of the blades and container and with other particles, the blades having sufficient tip speed to cause separation of the bitumen coatings from the particles, discharging the sand particles, bitumen and dispersing medium from the container, and collecting the bitumen separately from the sand particles and dispersing medium. | ||||||
| 133 | Beneficiation process for oil shale | US29021 | 1979-04-12 | US4257878A | 1981-03-24 | J. William Fishback; Dennis E. Petticrew |
| A beneficiation process for increasing the oil content of clay-bearing oil shale ore wherein the oil shale ore is subjected to an aqueous medium, agitated to disintegrate at least a portion of the clay, and the disintegrated clay is separated from the remaining oil shale to yield an oil shale having a greater amount of recoverable hydrocarbon values per ton than the unprocessed oil shale ore. | ||||||
| 134 | Process for the separation of foam from effluents of coke oven plants | US756700 | 1977-01-04 | US4176062A | 1979-11-27 | Lee K. Husher; Heinrich Weber; Kurt Tippmer |
| Tar and coal fines are separated from ammonia liquor in a coke making operation by a series of settling steps including one in which a foam is physically removed from the surface area of a decanter and placed in a separate decanter. | ||||||
| 135 | Apparatus and process for extracting oil or bitumen from tar sands | US802099 | 1977-05-31 | US4110195A | 1978-08-29 | Dukecal J. Hardin |
| This invention relates to an apparatus and process for extracting bitumen from mineral particles such as sand. The invention avoids many of the problems of the conventional hot water or solvent extraction processes by using an abrading process to remove the bitumen or oil from sand particles, using cool water and little solvent. The abrading process involves agitating a pulp of tar sand and water, preferably with some small amount of diluent, and then moving this around an annular space at a speed low enough to allow settling of clean sand to form a sand bed in contact with the moving pulp, the speed being high enough to prevent settling of bitumen coated sand particles, so that the bitumen is abraded from the sand particles and rises in the pulp. Fines and clay which are removed with the water and bitumen can be separated from the water, after removal of the bitumen, to give a sludge suitable for mixing with the clean sand prior to disposal. | ||||||
| 136 | Rotary separating and extracting devices | US665173 | 1976-03-09 | US4098648A | 1978-07-04 | Philipp Kraemer; Otto Meresz |
| A rotary separator, specially adapted for extraction of bituminous materials from tar sands or shale, comprises an inclined vessel having a helical conveyor attached to it, provided with apertures at the radially outer portion of the helical flights. Material introduced at the bottom is conveyed upwardly, and solvent washes downwardly to dissolve out the bituminous material. The apertures in the helix permit downward passage of liquid but prevent substantial downward passage of solids. A solvent recovery vessel is provided for recovering residual solvent from the separated solids. | ||||||
| 137 | Conditioning drum for use in hot water separation of bitumen from mined tar sands | US564959 | 1975-04-03 | US3968572A | 1976-07-13 | Frederick C. Stuchberry |
| A rotating drum type muller is described for initial conditioning of mined tar sands by the hot water method for separation of bitumen from the sands wherein ablation of mined tar sand lumps into pulp is effected through the addition of hot water, steam and caustic. This conditioning drum comprises a horizontally disposed cylindrical drum of a length to diameter ratio of about 1:1 or less, rotatable around its longitudinal axis and having axial openings at its inlet end for introduction of mined tar sand lumps, water and caustic and at its outlet end for rejection of oversize and discharge of mulled tar sands pulp, said axial opening at its outlet end being divided by a coaxial grate member, extending along the longitudinal axis of the drum, into an outer annular opening for discharge of tar sands pulp and an inner axial opening for rejection of oversize, said grate size being sufficient to allow ready passage of tar sands pulp into a discharge passageway defined by the outer annular opening while retaining the oversize; and a plurality of downwardly projecting steam conduits affixed to a stationary steam header extending substantially over the length of the drum interior along the longitudinal axis of the drum, said conduits being perforated for injecting steam into said cylindrical drum. | ||||||
| 138 | NANOBUBBLE AIDED BITUMEN EXTRACTION FROM OIL SAND | US15876773 | 2018-01-22 | US20180208854A1 | 2018-07-26 | JUN LONG |
| A water-based extraction process for extracting bitumen from mined oil is provided comprising providing a water-based mixture containing bitumen; and introducing nanobubbles to the mixture to attach to bitumen and, thereby, extract the bitumen from the water-based mixture, wherein a nanobubble has a diameter of less than 5,000 nm. | ||||||
| 139 | Process and apparatus for refining sand | US15685565 | 2017-08-24 | US09987637B2 | 2018-06-05 | Anthony Convery; Glenn Sloan |
| A process for refining sand for use as frac sand includes the steps of passing the sand through a first fines separation stage to remove fine particles of contaminant from the sand, reducing the water content of the sand (such as to less than 20%), passing the sand into an attrition scrubber unit containing moving blades to delaminate clay and other contaminants from the sand grains, passing the sand from the attrition scrubber unit through a second fines separation stage to separate fine contaminants from the sand, and dewatering the resulting sand product in a further dewatering stage. | ||||||
| 140 | Recovering mature fine tailings from oil sands tailings ponds | US14832632 | 2015-08-21 | US09782700B2 | 2017-10-10 | Rade Svorcan |
| The present disclosure relates to systems and methods for recovering mature fine tailings (MFT) from oil sands tailings ponds. Some examples include a hollow, fully enclosed around its perimeter, ideally of cylindrical form, open bottom structure (a hollow conduit), of predetermined geometry, which is placed at the pond surface. The hollow conduit can penetrate MFT deposits to or below a level at which MFT of required density is located. A width or diameter of the hollow conduit can be determined with respect to the MFT inflow velocity and the corresponding shear rate, so as to enable MFT flow into the hollow conduit at a rate matching a rate at which the MFT is removed from the pond (e.g., a recovery rate). An MFT fill level inside the hollow conduit can be kept constant and equal to a required fill level throughout MFT recovery operations. MFT can enter the hollow conduit during MFT recovery operations solely under action of hydraulic head pressure. MFT can be transferred from within the hollow conduit utilizing a mechanical device such as a pump or a siphon, for transfer to shore based facilities and further processing. | ||||||
QQ群二维码
意见反馈
意见反馈