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1. 发明专利

JP2003010814A Ash treatment method 有权
标题翻译： ASH治疗方法
公开(公告)号：JP2003010814A
公开(公告)日：2003-01-14
申请号：JP2001203080
申请日：2001-07-04
申请人： Ebara Corp , 株式会社荏原製作所
发明人： MARUYAMA SHINSAKU , UCHIDA TAKAHARU , TSUDA SEIICHI
IPC分类号： F23J1/00 , B01D11/02 , B09B3/00 , B09B5/00 , F27D17/00
CPC分类号： Y02P10/283
摘要： PROBLEM TO BE SOLVED: To provide a method for obtaining a recyclable solid content by concentrating a heavy metal and by lowering the chloride ion concentration in the solid content of an exhaust gas generating from a melting furnace of fly ash. SOLUTION: The fly ash from an incineration furnace and/or the fly ash (a) from the melting furnace are continuously cleaned by washing the ashes with water, mechanically rubbing the surfaces of the ash a each other into slurry 1, and then subjecting the slurry 1 the solid/liquid separation process (2) to transfer salts to the water side (d) and remove the salts. The solid content (c) is melted at the melting furnace 4 into a molten solid content (g). The dust scattered in the exhaust gas (f) from the furnace 4 is captured 5 and mixed with water so that the dust is cleaned and makes into slurry 8. After that, the slurry (8) is subjected to the solid/liquid separation process 9 and the salts are transferred to the water side (m) and removed. Thus the solid content (p) enriched with the heavy metal is obtained and the exhaust gas (f) is captured by a dust collector after adding a neutralizing agent to the exhaust gas (f). The solid content is melted at the melting furnace 4, preferably in a reductive atmosphere.
摘要翻译：要解决的问题：提供一种通过浓缩重金属获得可回收固体含量的方法，并且通过降低由飞灰熔化炉产生的废气的固体含量中的氯离子浓度。解决方案：来自焚烧炉和/或来自熔化炉的飞灰（a）的飞灰通过用水洗涤灰分并将灰分相互机械地摩擦成浆料1而连续清洗，然后使浆料1固/液分离过程（2）将盐转移到水侧（d）并除去盐。将固体成分（c）在熔融炉4熔融成熔融固体成分（g）。捕获从炉4排出的废气（f）中的粉尘5并与水混合，使得灰尘被清洗并制成浆料8.之后，对浆液（8）进行固/液分离处理 9并将盐转移到水侧（m）并除去。从而获得富含重金属的固体含量（p），并且在向排气（f）中加入中和剂之后，废气（f）被集尘器捕获。固体含量在熔化炉4熔化，优选在还原性气氛中熔化。

2. 发明专利

JP2001113245A TREATMENT OF ASH BY MELTING 失效
公开(公告)号：JP2001113245A
公开(公告)日：2001-04-24
申请号：JP29643299
申请日：1999-10-19
申请人： EBARA CORP
发明人： KIKUCHI TAKESHI , KARAKI RYOTARO , UCHIDA TAKAHARU
IPC分类号： B09B3/00 , F23J1/00
摘要： PROBLEM TO BE SOLVED: To provide a method for treating ash by melting which can reduce the concentration of heavy metals in molten slag when a mixture of incineration ash and fly ash is melted in an oxidizing atmosphere. SOLUTION: In a method in which incineration ash 12 and fly ash, which were generated in a municipal refuse incineration furnace, are mixed 2 in a regular ratio, and the mixture is melted in an oxidizing atmosphere, the mixed ash is melted 7 after being kept 6 at a temperature not exceeding its melting point for a regular time (20-30 min) to evaporate Pb in the ash. In the method, Pb can be evaporated by crushing or mixing/solidifying 3 the mixed ash, the mixed ash is preferably agitated while being heated, and the chlorine concentration of the mixed ash is preferably kept at least 2%.

3. 发明专利

JPH10225667A METHOD OF DECOMPOSING AROMATIC HALOGENATED COMPOUND 失效
公开(公告)号：JPH10225667A
公开(公告)日：1998-08-25
申请号：JP3065697
申请日：1997-02-14
申请人： EBARA CORP
发明人： UCHIDA TAKAHARU , TAKADA MAKOTO , IIMURA SEIJI
IPC分类号： A62D3/34 , A62D3/36 , A62D101/22 , B01J19/00 , B09B3/00 , A62D3/00
摘要： PROBLEM TO BE SOLVED: To provide a method of decomposing an arom. halogenated compd. facilitating removal of alkali and salts in order to execute an incinerating disposal after subjecting the halogenated compd. such as PCB to a detoxicating treatment. SOLUTION: In the method in which the arom. halogenated compd. is dissolved in a high b.p. oil having low viscosity, and the soln. is heated to 300-400 deg.C in the presence of an alkaline material and a high b.p. olefin compd., dehalogenation is executed by using the alkaline material by 10-300 equivalence to a chlorine in the arom. halogenated compd. or by 0.1-30% (W/W)to the b.p. oil. 0.1-10% (V/V) polybutadiene is used preferably to the high b.p. oil as the high b.p. olefin compd.

4. 发明专利

JP2002301461A METHOD AND APPARATUS FOR TREATING MOLTEN SLAG SUPPRESSING ELUTION OF LEAD 失效
公开(公告)号：JP2002301461A
公开(公告)日：2002-10-15
申请号：JP2001105418
申请日：2001-04-04
申请人： EBARA CORP
发明人： OBA MASAZUMI , OKABE YOSHITOMO , KARAKI RYOTARO , TAKENAKA SHINYA , UCHIDA TAKAHARU
IPC分类号： F23J1/00 , B02C21/00 , B02C23/12 , B07B1/00 , B09B3/00 , B09B5/00
摘要： PROBLEM TO BE SOLVED: To provide a method and apparatus for treating molten slag capable of manufacturing the treated slag high in safety by suppressing the elution of lead without adding an additive such as a chemical. SOLUTION: In the treatment method for suppressing the elution of lead from molten slag obtained by treating waste at a high temperature, the molten slag 1 is ground by a grinder 2 and a part of the ground molten slag is mixed with the molten slag. The grinding treatment of the molten slag is preferably performed so that a particle size of 1,000 μm or less becomes 60% or more, preferably 80% or more and the molten slag subjected to grinding treatment or mixing treatment is not less than 9, preferably 9.5 in the pH of an eluate and can be subjected to washing treatment by a washing machine 4.

5. 发明专利

JP2000026924A METHOD FOR SEPARATING AND REMOVING NON-FERROUS METALS IN WASTE 失效
公开(公告)号：JP2000026924A
公开(公告)日：2000-01-25
申请号：JP21027698
申请日：1998-07-10
申请人： EBARA CORP
发明人： UCHIDA TAKAHARU , HASHIMOTO HIROYUKI , NAGAI HIROSHI
IPC分类号： B09B3/00 , C22B7/00 , C22B7/02
摘要： PROBLEM TO BE SOLVED: To provide a method for separating and removing non-ferrous metals from waste which is capable of efficiently separating the non-ferrous metals in the waste and decomposing org. chlorine compds. without the generation of dioxin. SOLUTION: The method for separating and removing the non-ferrous metals from the waste consists in mixing the waste and the org. chlorine compds. in such a manner that the total molar number of the non-ferrous metals in the waste and the chlorine molar number in the org. chlorine compds. attain 1:1 to 5, more particularly 1:2 in conversion. The non-ferrous metals in the waste are brought into reaction with the chlorine and carbon in the org. chlorine compds. under a reducing atmosphere under which the quantity of the oxygen existing during the reaction stage attains the theoretical quantity necessary for conversion of all the carbon-components in the supplied org. chlorine compds. to CO or below at a reaction temp. of 500 to 1200 deg.C, by which the non-ferrous metals are evaporated away in the form of metal chlorides. One or more kinds among vinyl chloride, vinylidene chloride, PCB, CNP, PCP, 2, 4, 5-T, 2, 4-D, PCDD and PCDF are usable as the org. chlorine compds.

6. 发明专利

JPH11300316A RECOVERING METHOD OF INORGANIC MATTER COEXISTING IN ORGANIC MATTER 失效
公开(公告)号：JPH11300316A
公开(公告)日：1999-11-02
申请号：JP11702898
申请日：1998-04-27
申请人： EBARA CORP
发明人： INOUE KEISUKE , UCHIDA TAKAHARU , KARAKI RYOTARO , TAKADA MAKOTO
IPC分类号： A62D3/30 , A62D3/34 , A62D3/36 , A62D3/37 , A62D101/22 , B01D11/02 , B09B3/00 , C01D1/04 , C01D3/04 , A62D3/00
摘要： PROBLEM TO BE SOLVED: To provide a recovering method of the inorg. matter in which the number of processes, labor and time are saved, and deterioration of alkali purity is not caused. SOLUTION: This method is composed of a pretreating method in which a mixture of the org. matter and the inorg. matter is set in the presence of a water-insoluble polar solvent, acid and water and neutralized and the water-soluble org. matter is extracted with the water-insoluble polar solvent to facilitate a recovery of the inorg. matter and the recovering method of the inorg. matter in which the water-soluble org. matter is extracted with the water-insoluble polar solvent layer to separate an water layer, and the inorg. matter is salts or alkali, and the water-insoluble is butanol, pentanol or amyl alcohol, and the mixture of the org. matter and the inorg. matter is a residue generated at the time of decomposing PCB by a chemically decomposing method.

7. 发明专利

JPH11300314A RECOVERING METHOD OF INORGANIC MATTER COEXISTING IN ORGANIC MATTER 失效
公开(公告)号：JPH11300314A
公开(公告)日：1999-11-02
申请号：JP11702698
申请日：1998-04-27
申请人： EBARA CORP
发明人： INOUE KEISUKE , UCHIDA TAKAHARU , KARAKI RYOTARO , TAKADA MAKOTO
IPC分类号： A62D3/30 , A62D3/34 , A62D3/36 , A62D3/37 , A62D101/22 , B09B3/00 , C01D1/04 , C01D3/04 , A62D3/00
摘要： PROBLEM TO BE SOLVED: To provide a recovering method of the inorg. matter in which the number of processes, labor and time are saved, and deterioration of alkali purity is not caused. SOLUTION: This method is composed of a pretreating method in which the org. content is evaporated or insolubilized in water to facilitate a recovery of the inorg. matter with water by heating a mixture of the org. matter and the inorg. matter at 500-600 deg.C in an inert atmosphere and the recovering method in which a residual matter after evaporating or insolubilizing the org. matter in the water is washed with the water, and the inorg. matter is salts or alkali preferably.

8. 发明专利

JP2001121103A DETOXICATING METHOD OF INCINERATION FLY ASH 失效
公开(公告)号：JP2001121103A
公开(公告)日：2001-05-08
申请号：JP29936799
申请日：1999-10-21
申请人： EBARA CORP
发明人： KARAKI RYOTARO , UCHIDA TAKAHARU
IPC分类号： B09B3/00
摘要： PROBLEM TO BE SOLVED: To provide a detoxicating method of incineration fly ash, which is capable of volatizing and separating heavy metals in the incineration fly ash. SOLUTION: The detoxicating method of the incineration fly ash has a 1st process for mixing waste polyvinyl chloride with the incineration fly ash containing one or more kinds of the heavy metals in the mixing ratio of (1:100) to (2:1), preferably (1:10) to (1:1) and heating at 200-600 deg.C and a 2nd process for heating the treated residue in the 1st process to 600-1,000 deg.C to oxidize to volatize and separate the heavy metals in the incineration fly ash, the heavy metals can be selected from lead (Pb), cadmium (Cd), mercury (Hg), arsenic (As), selenium (Se), antimony (Sb) and zinc (Zn) and the heating and oxidizing treatment in the 2nd process is performed preferably by controlling the concentration of oxygen in a reaction furnace so that the concentration of carbon in the incineration fly ash after the treatment is about 0.01-5%.

9. 发明专利

JPH1192771A REPRODUCTION OF WASTE OIL 失效
公开(公告)号：JPH1192771A
公开(公告)日：1999-04-06
申请号：JP25551297
申请日：1997-09-19
申请人： EBARA CORP
发明人： UCHIDA TAKAHARU , KARAKI RYOTARO
IPC分类号： B01D15/00 , B01D11/04 , C10G21/08 , C10G25/00 , C10G25/03 , C10G53/04 , C10L1/00 , C10M175/00
摘要： PROBLEM TO BE SOLVED: To provide a process for reproducing waste oil whereby the resulting reproduced oil is reutilized as fuel oil or insulating oil by the almost complete removal of impurities. SOLUTION: From a waste oil which contains salts and alkalis as impurities, the particle sizes of which are small, and/or organic materials having functional groups that have a large affinity to water as by-products of the degradation of the waste oil so that the impurities cannot be removed completely by sedimentation separation, centrifugal separation, filtration separation or the like, the impurities is removed by extraction to water or an aqueous solution subsequent to solid-liquid separation to obtain a reproduced oil which is reused as fuel oil or insulating oil.

10. 发明专利

JPH09276690A DECOMPOSITION OF AROMATIC HALOGEN COMPOUND 失效
公开(公告)号：JPH09276690A
公开(公告)日：1997-10-28
申请号：JP2917197
申请日：1997-02-13
申请人： EBARA CORP
发明人： UCHIDA TAKAHARU , TAKADA MAKOTO , IIMURA SEIJI
IPC分类号： A62D3/34 , A62D3/36 , A62D101/22 , B01J19/00 , B09B3/00 , C07B35/06 , A62D3/00
摘要： PROBLEM TO BE SOLVED: To provide a decomposition method having a high decomposition ratio of an aromatic halogen compd. such as PCB when the aromatic halogen compd. is decomposed and detoxified and capable of easily removing salts produced from oil after treatment as byproducts and unreacted alkali. SOLUTION: An aromatic halogen compd. is dissolved in oil low in viscosity and having a high b.p. and heated to 300-400 deg.C in the presence of an alkaline substance and a high b.p. olefin compd. to be dehalogenated. As an example of the above mentioned aromatic halogen compd., there is polychlorobiphenyl(PCB). The alkaline substance is one or more kind of a compd. selected from hydroxide, carbonate and bicarbonate of alkali metal or alkaline earth metal and, as the high b.p. olefin compd., polybutadiene, 1-octadecene or 1-eicosene is used in an amt. of 0.01-10% by vol. of high b.p. oil.

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