| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 201 | Separation of a compound material from a mixture of co-mingled materials having similar densities using a fluid in a supercritical state | EP95110785.3 | 1995-07-11 | EP0692310A1 | 1996-01-17 | Serad, George A.; Thornburg, Theodore S. |
A method for separating co-mingled polymeric materials, in particular polyethylene terephthalate (PET) and polyvinyl chloride (PVC) is described. The process involves selectively dissolving a supercritical fluid into one of the materials at the appropriate temperature and pressure. Upon rapid reduction of the system pressure, the selected material foams providing a change in density. Under ambient conditions, the polymeric materials having a large density difference can be separated by means of aqueous separation and flotation. The preferred supercritical fluid for the process is carbon dioxide, and PVC is the material into which the supercritical fluid is preferentially dissolved. |
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| 202 | Verfahren und Anordnung zum Trennen von Tabakrippenfasern und zusammengeklebten Tabakblattfasern | EP92120801.3 | 1992-12-05 | EP0548647A2 | 1993-06-30 | Lasch, Manfred, Dipl.-Ing.; Liebe, Reinhard; Hackmack, Klaus-Georg |
Die Erfindung betrifft ein Verfahren zum Abtrennen von aus Tabakrippenstücken bestehenden Tabakteilen (Rippenstücke) von Tabakteilen, die aus miteinander verklebten, verklumpten oder zusammengefalteten Tabakfasern bestehen. |
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| 203 | A process for beneficiation of coal by selective caking | EP88202719.6 | 1988-11-29 | EP0321014B1 | 1993-05-12 | Vettor, Antonio; Passarini, Nello; Marcotullio, Armando |
| 204 | Verfahren zur Trennung von Kunststoffen durch Flotation | EP92115498.5 | 1992-09-10 | EP0535419A1 | 1993-04-07 | Deiringer, Günther, Dr.; Edelmann, Gerhard, Dr.; Rauxloh, Bernhard |
Die Erfindung betrifft ein Verfahren zum Abtrennen von Kunststoffen aus Polyester aus einem Gemisch von Kunststoffen aus Polyester, Polyvinylchlorid und gegebenenfalls anderen Kunststoffen, dadurch gekennzeichnet, daß das Gemisch der Kunststoffe mit einer wäßrig alkalischen Lösung behandelt wird und der Polyester von Polyvinylchlorid und gegebenenfalls anderen Kunststoffen durch Flotation abgetrennt wird. |
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| 205 | A process for the beneficiation of coal by selective caking | EP88202720.4 | 1988-11-29 | EP0321015B1 | 1993-01-13 | Vettor, Antonio; Passarini, Nello; Marcotullio, Armando |
| 206 | Solid-solid separations utilizing alkanol amines | EP92305751.7 | 1992-06-23 | EP0520739A2 | 1992-12-30 | Klimpel, Richard R.; Fee, Basil S.; Leonard, Donald E. |
The separation of silica or siliceous gangue from one or more desired minerals in an aqueous slurry via mechanic means is improved by the addition of a small amount of an alkanol amine to the slurry. Examples of separation techniques benefiting from this technology include using cyclones, tables and spiral separators. |
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| 207 | Process for separating polyethylene terephthalate from polyvinyl chloride | EP92107521.4 | 1992-05-04 | EP0512464A1 | 1992-11-11 | Sisson, Edwin Andrew |
The process comprises: (1) treating the recycle stream with (a) at least one inorganic base and (b) at least one nonionic surfactant under conditions and for a time sufficient to decrease the contact angle of the polyethylene terephthalate flakes with water below a value of 25° while maintaining the contact angle of the polyvinyl chloride flakes above a value of about 45°; (2) adding the treated recycle stream to water, to form an aqueous mixture containing the treated polyethylene terephthalate flakes and treated polyvinyl chloride flakes; (3) agitating the aqueous mixture to allow the polyvinyl chloride flakes to come in contact with gas bubbles; (4) allowing the polyvinyl chloride flakes to float and the polyethylene terephthalate flakes to sink; and (5) removing the polyvinyl chloride flakes from the surface of the aqueous mixture and removing the polyethylene terephthalate flakes from the bottom of the aqueous mixture. |
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| 208 | A process for beneficiation of coal by selective caking | EP88202719.6 | 1988-11-29 | EP0321014A3 | 1990-02-14 | Vettor, Antonio; Passarini, Nello; Marcotullio, Armando |
A process is disclosed for beneficiation of coal by selective caking, in which process a caking mixture is employed consisting of: |
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| 209 | PROCESS OF AFFECTING COAL AGGLOMERATION TIME. | EP86907183 | 1986-11-18 | EP0259348A4 | 1989-12-28 | KELLER DOUGLAS V JR; BURRY WILLIAM M |
| 210 | PROCESS FOR THE SELECTIVE SEPARATION OF A COPPER MOLYBDENUM ORE. | EP86905004 | 1986-07-09 | EP0229835A4 | 1989-12-12 | VARGAS ALFREDO P; ARBITER NATHANIEL |
| A process for separation of the mineral components of a copper/molybdenum sulfide ore by flotation including (a) crushing and grinding the ore to liberate the minerals; (b) in a primary flotation circuit, adding a molybdenum collector selected from the group of hydrocarbon oils, and a frother; (c) floating a primary (molybdenum) concentrate in the primary circuit in the absence of a copper collector; (d) directing the primary molybdenum concentrate to an upgrading separation circuit to produce a final molybdenum concentrate; and (e) directing the non-float of the primary circuit to a secondary scavenger circuit for recovery of copper and additional molybdenum with addition of a copper collector, the process being conducted at a natural pH essentially determined by the ore composition and the quality of the water used to form the pulp, without addition of substantial amounts of alkaline or acid pH modifiers sufficient to change the pH. | ||||||
| 211 | Method of separating solids by simultaneous comminution and agglomeration | EP85304265 | 1985-06-14 | EP0170379A3 | 1988-04-20 | Trass, Olev |
A process is provided for the separation of a solid into its constituent lyophobic and lyophilic components by comminution and agglomeration in liquids to which the two components are respectively lyophobic and lyophilic. The process has particular application in coal beneficiation wherein ash particles are liberated into a water phase and coal particles are agglomerated with oil. The operations of comminuting and agglomerating are combined in a single step by performing the process in a mill (10) having positive transport capability. |
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| 212 | Separation of matter by flotation | EP87308052.7 | 1987-09-11 | EP0261847A2 | 1988-03-30 | White, David Anthony; Taylor, John Martin |
Matter is floated to the surface of a liquid by bonding ions to the surface of the matter to give the matter a charge, and forming a froth with the aid of a frothing agent having groups of opposite charge to the ions so that the frothing agent bonds to the matter and is carried in the froth to the surface of the liquid. By removing the froth the matter can be separated from any inert matter present in the liquid. The oxidation state of the surface of the matter may be changed before bonding takes place with the ions to one which facilitates that bonding. The matter can be particulate or dissolved ions. For example, uranium dioxide particles are oxidised with hydrogen peroxide, sodium carbonate added to produce a negatively charged uranyl carbonate complex and a froth formed with the aid of cetyl trimethylammonium bromide. Cationic groups in the latter bond to the uranyl carbonate complex, causing the uranyl carbonate complex to be concentrated in the froth at the surface of the liquid. The froth is then skimmed off to remove the uranium dioxide particles. |
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| 213 | PROCESS FOR THE SELECTIVE SEPARATION OF BASE METAL SULFIDES AND OXIDES CONTAINED IN AN ORE. | EP83902780 | 1983-08-11 | EP0116616A4 | 1987-07-23 | VARGAS ALFREDO PERCY |
| Process for the separation of ore components by flotation comprising: grinding ore to form pulp, mixing said pulp with sulfide ions and cyanide ions, adjusting the concentration of said sulfide ions to a level at least sufficient to cause depression of base metal mixed sulfides but insufficient to cause substantial activation of pyrites, and adjusting the concentration of said cyanide ions to a level at least sufficient to cause auxiliary depression of the mineral components of said ore which are required to be depressed in said flotation, but insufficient to cause overdepression of said mineral components; said sulfide ions and cyanide ions having been introduced to said pulp at predetermined times and in a predetermined sequence. | ||||||
| 214 | Procédé de traitement à haute température d'une suspension aqueuse contenant des argiles sous forme dispersée stable | EP86420124.9 | 1986-05-15 | EP0204642A1 | 1986-12-10 | Lamerant, Jean-Michel; Pallez, François; Personnet, Pierre-Bernard |
L'invention concern un procédé de traitement à haute température d'une suspension aqueuse contenant des argiles sous forme dispersée stable résultant d'un délitage total, cette suspension contenant en outre éventuellement une phase organique dispersée, de façon à obtenir un produit filtrable. Dans ce procédé, on porte la suspension à traiter à une température comprise entre 150 et 260°C dans un réacteur pressurisé, et on injecte dans le réacteur du lait de chaux à raison de 60 à 400 g de CaO par kg d'argile contenue dans la suspension à traiter, à une température au moins égale à 150°C. Le procédé s'applique typiquement à des suspensions aqueuses argileuses de teneurs en argiles comprises entre 15 et 35% en poids. |
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| 215 | PROCESS FOR PRODUCING HIGH BRIGHTNESS CLAYS UTILIZING MAGNETIC BENEFICIATION AND CALCINING. | EP83902835 | 1983-07-29 | EP0116087A4 | 1986-09-24 | COOK JERRY ALLEN; COBB GARY LAWSON |
| A method for separating titaniferous and ferruginous discolorants from a crude kaolin clay. A dispersed aqueous slurry of the clay is formed containing a deflocculant and a fatty acid collecting agent, and the slurry is conditioned to coat the discolorants with the collecting agent to thereby render the discolorants hydrophobic. A system of sub-micron sized magnetic ferrite seeding particles, the surfaces of which have been rendered hydrophobic, is thereupon added to the slurry. The seeded slurry is mixed to coalesce the hydrophobic-surfaced discolorants with the hydrophobic-surfaced seeding particles, and the slurry is then subjected to a froth flotation, which removes substantial quantitites of the discolorants and seeding particles coalesced therewith, and also removes excess seeding particles and excess collecting agent. The flotation-beneficiated slurry is then subjected to a magnetic separation by passing the slurry through a porous ferromagnetic matrix positioned in a magnetic field, having an intensity of at least 0.5 kilogauss, to remove further quantities of the discolorants and seeding particles associated therewith, and to remove seeding particles unassociated with said discolorants. The product from said magnetic separation may then be calcined at a temperature of at least 1500<o>F to yield an exceptionally high brightness, low abrasion product. | ||||||
| 216 | RECOVERY OF SOLIDS FROM DISPERSIONS | EP83902942.0 | 1983-09-26 | EP0120039A1 | 1984-10-03 | LEES, Jeremy, James |
| Un procédé de récupération de matériaux solides provenant d'une dispersion diluée d'un matériau solide finement divisé, comme des déchets animaux, des eaux résiduelles, de l'amiante et du charbon, comprend l'addition à cette dispersion d'un agent agglomérant capable d'induire la floculation des particules, le mélange de l'agent agglomérant et de la dispersion, le conditionnement du mélange ainsi formé pour permettre à la floculation d'avoir lieu, ainsi que le passage du mélange floculé, pratiquement sans cisailler les particules floculées, dans un coude cribleur que l'on ébranle ou que l'on fait vibrer et la récupération des particules floculées à partir du trop-plein du coude cribleur. | ||||||
| 217 | PROCESS FOR PRODUCING HIGH BRIGHTNESS CLAYS UTILIZING MAGNETIC BENEFICIATION AND CALCINING | EP83902835.0 | 1983-07-29 | EP0116087A1 | 1984-08-22 | COOK, Jerry, Allen; COBB, Gary, Lawson |
| Le procédé en question permet la séparation de décolorants titanifères et ferrugineux à partir d'une argile brute à base de kaolin. Une boue aqueuse dispersée de l'argile est formée et contient un agent de défloculation et un agent collecteur d'acides gras, puis la boue est conditionnée pour enrober les décolorants avec l'agent collecteur de manière à rendre les décolorants hydrophobes. Un système de particules d'ensemencement de ferrite magnétique de taille inférieure au micron, dont les surfaces ont été rendues hydrophobes, est ensuite ajouté à la boue. La boue ensemencée est mélangée pour que les décolorants à surface hydrophobe se combinent aux particules d'ensemencement à surface hydrophobe, puis la boue est soumise à une flottation par écumage qui permet de retirer des quantités substantielles de décolorants et de particules d'ensemencement combinées aux décolorants, et d'extraire également les particules d'ensemencement en excès et l'agent collecteur en excès. La boue enrichie par flottation est ensuite soumise à une séparation magnétique en faisant passer la boue au travers d'une matrice ferromagnétique poreuse positionnée dans un champ magnétique, d'une intensité d'au moins 0,5 kilogauss pour extraire de nouveau d'autres quantités de décolorants et de particules d'ensemencement associées à ceux-ci, et extraire les particules d'ensemencement qui ne sont pas associées à ces décolorants. Le produit obtenu de cette séparation magnétique peut ensuite être calciné à une température d'au moins 1500oF pour donner un produit de faible abrasion ayant une brillance exceptionnellement élevée. | ||||||
| 218 | Sorting particles | EP80304174 | 1980-11-20 | EP0030802A3 | 1983-07-20 | DiGiacomo, Peter Michael; White, William R.; McKinley, John Richard; Park, Won Choon |
A process for separating one type of particle (e.g., ore particles) from a second type of particle (e.g., gangue particles) comprising the steps of (1) conditioning the particles to selectively mark one type of particle (i.e. either the ore particles or the gangue particles), to the substantial exclusion of the other; (2) detecting the marked particles; and (3) separating the detected marked particles from the substantially unmarked particles is characterised by the use, as a conditioning agent, of a compound having both a surface-selective functional group and a detectable moiety. In one embodiment, the detectable moiety is fluorescent and detecting is performed under ultraviolet radiation. The process is especially useful for separating higher grade limestone from lower grade limestone and/or gangue or for separating oil shale or coal of high heat value from lower heat content materials or for concentrating valuable minerals, such as silver or copper ores. |
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| 219 | Verfahren zur Abtrennung von Kunststoffabfällen von Abfallgemischen | EP81109877.1 | 1981-11-25 | EP0054754A2 | 1982-06-30 | Eirich, Hubert; Eirich, Paul; Eirich, Walter |
Um von Abfailgemischen Kunststoffabfäile derart abzutrennen, daß sie nicht gemeinsam mit Papierabfällen oder anderen leichten Stoffen anfallen, wird der kunststoffhaltige Abfall in feuchtem Zustand zerkleinert, gemischt und agglomeriert und das so erhaltene Gemisch in Agglomerat und Kunststoffteile aufgetrennt. |
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| 220 | Sorting particles | EP80304174.8 | 1980-11-20 | EP0030802A2 | 1981-06-24 | DiGiacomo, Peter Michael; White, William R.; McKinley, John Richard; Park, Won Choon |
A process for separating one type of particle (e.g., ore particles) from a second type of particle (e.g., gangue particles) comprising the steps of (1) conditioning the particles to selectively mark one type of particle (i.e. either the ore particles or the gangue particles), to the substantial exclusion of the other; (2) detecting the marked particles; and (3) separating the detected marked particles from the substantially unmarked particles is characterised by the use, as a conditioning agent, of a compound having both a surface-selective functional group and a detectable moiety. In one embodiment, the detectable moiety is fluorescent and detecting is performed under ultraviolet radiation. The process is especially useful for separating higher grade limestone from lower grade limestone and/or gangue or for separating oil shale or coal of high heat value from lower heat content materials or for concentrating valuable minerals, such as silver or copper ores. |
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