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1. 发明专利

JP2000344507A POWDERY ACTIVATED CARBON, ACTIVATED CARBON SHEET AND ELECTRIC DOUBLE LAYER CAPACITOR 失效
公开(公告)号：JP2000344507A
公开(公告)日：2000-12-12
申请号：JP15924499
申请日：1999-06-07
申请人： KURARAY CHEMICAL KK
发明人： OTSUKA KIYOTO
IPC分类号： H01G11/22 , C01B31/08 , H01G11/24 , H01G11/26 , H01G11/34 , H01G11/38 , H01G11/42 , H01G11/44 , H01G11/78 , H01G11/80 , H01G11/86 , H01G9/058
摘要： PROBLEM TO BE SOLVED: To obtain powdery activated carbon capable of achieving high packing density even when the activated carbon is molded with a small quantity of binder by specifying a median particle size and a ratio of particles having a particle size which is a specified ratio of the median particle size or below. SOLUTION: This activated carbon has a >=10 μm and =300 m2/g specific surface area and shows high adsorptivity. Carbides of coconut shell, wood, phenolic resin or the like and coal are used as raw materials of the activated carbon. An electrode of activated carbon having >=0.65 g/cc density at the time of molding can be manufactured. In order to mold the activated carbon powder into a sheet, 100 pts.wt. activated carbon powder is mixed with 5-10 pts.wt. binder such as polyvinylidene fluoride and then compression molding is carried out utilizing a roll press or the like. This powdery activated carbon may be manufacture by repeating compression and mixing of the powdery activated carbon in high speed, though the method for manufacturing the same is not limited in particular.

2. 发明专利

JPH09239265A MERCURY ADSORBENT 失效
公开(公告)号：JPH09239265A
公开(公告)日：1997-09-16
申请号：JP7532596
申请日：1996-03-04
申请人： KURARAY CHEMICAL KK
发明人： OTSUKA KIYOTO
IPC分类号： B01D15/00 , B01J20/20 , C01B31/08 , C01B32/336 , C10G25/00
摘要： PROBLEM TO BE SOLVED: To almost perfectly remove a very small of inorg. mercury and org. mercury contained in a hydrocarbon by bringing an absorbent into contact with the hydrocarbon being an intermediate of a pertroleum product or petrochemical product such as naphtha in a liquid phase. SOLUTION: An adsorbent absorbing mercury and a mercury conpd. contained in a liquid hydrocarbon is obtained by supporting an acid in activated carbon. Herein, as the activated carbon, one characterized by that vol. of micropores with a pore radius of 8Å or less is 80ml/g or more is pref. and, as the acid supported on activated carbon, hydrochloric acid, sulfuric acid and phosphoric acid are pref. and hydrochloric acid is more pref. Activated carbon used as a carrier is pref. obtained by activating a carbonaceous raw material in an atmosphere with steam content of 30vol.% or less. Further, a mercury removing method bringing activated carbon having an inorg. acid supported thereon into contact with hydrocarbon being an intermediate of a petroleum product of petrochemical product such as naphtha in a liquid phase is also included.

3. 发明专利

JPH09192485A ACTIVATED CARBON MOLDED BODY CARRYING METAL OXIDE 失效
公开(公告)号：JPH09192485A
公开(公告)日：1997-07-29
申请号：JP5268196
申请日：1996-01-22
申请人： KURARAY CHEMICAL KK
发明人： TAJIMA YASUHIRO , OTSUKA KIYOTO
IPC分类号： B01D53/86 , B01J20/20 , B01J21/18 , B01J23/02 , B01J23/06 , B01J23/16 , B01J23/34 , B01J23/70 , B01J23/745 , B01J23/75 , B01J23/755 , B01J23/80 , B01J23/86 , B01J23/889 , B01J32/00 , C01B31/08
摘要： PROBLEM TO BE SOLVED: To obtain an activated carbon molded body having high function as an oxidation catalyst at ordinary temp. or low temp. even in the case of a very low concn. of malodorous gas by carrying a specified amt. of a metal oxide on activated carbon obtd. through specified processes, adding a binder and molding them in a honeycomb shape. SOLUTION: Oxides of one or more kinds of metals selected from among Fe, Cr, Ni, Co, Mn, Zn, Cu, Mg and Ca are carried by 0.1-20wt.% on activated carbon obtd. by carbonizing carbonaceous stock, activating the resultant carbon in an atmosphere having =500 deg.C in gaseous nitrogen and gaseous CO2 not contg. oxygen or steam and cooling the treated carbon to

4. 发明专利

JPH0956799A SELF-REGENERATIVE ADSORBENT 失效
公开(公告)号：JPH0956799A
公开(公告)日：1997-03-04
申请号：JP24097695
申请日：1995-08-24
申请人： KURARAY CHEMICAL KK
发明人： HANAMOTO TETSUYA , TAJIMA YASUHIRO , OTSUKA KIYOTO , TANAKA EIJI
IPC分类号： A61L9/01 , B01D53/02 , B01J20/08 , B01J20/18
摘要： PROBLEM TO BE SOLVED: To enable the adsorption of even a very small quantity of bad-smell component in the living space and make the adsorbing performance recoverable by heating, by making a specified quantity of the oxide of iron or others supported on the mixture of zeolite or other inorganic porous substances, and thus, constituting an adsorbent. SOLUTION: The mixture of one kind or two or more kinds selected from the group comprising silica gel, zeolite, alumina and silica alumina which are inorganic porous substances are made to be the support body. Then, metal oxide containing one metal or plural metals selected from the group comprising iron, chromium, nickel, cobalt, manganese, zinc, copper, magnesium and calcium are supported by the support body in 0.1 to 20 weight%. Thus, the self- regenerative adsorbent is formed. As the support for the metal oxide, zeolite which is higher than 5 in mole ratio of silica to alumina, is preferable, and that higher than 10 is more preferable.

5. 发明专利

JPH09173429A SHEET CONTAINER ACTIVATED CARBON PARTICLE 失效
公开(公告)号：JPH09173429A
公开(公告)日：1997-07-08
申请号：JP35057395
申请日：1995-12-22
申请人： MORUZA KK , KURARAY CHEMICAL KK
发明人： ITO HIROKAZU , OKAZAKI MASAKI , OTSUKA KIYOTO
IPC分类号： A61L9/01 , B01D53/04 , B01D53/38 , B01D53/81
摘要： PROBLEM TO BE SOLVED: To prepare a sheet having a high peel strength by firmly fixing an activated carbon particle to the pulp fiber without damaging the adsorptivitiy of the activated carbon. SOLUTION: A sheet containing activated carbon particles is obtained by containing 10% or more activated carbon particles with the mean particle diameter of 1-30μm and the specific surface area of from 300 to less than 2500m /g, fibrous polyvinyl alcohol binder having a melting temperature from 50 deg.C to less than 100 deg.C and pulp. The sheet can be obtained by paper making method using a raw material having pulp content of 5-89% and containing 10-85% activated carbon particles and 1-10% fibrous polyvinyl alcohol binder, and is excellent in absorptivity and has a layer-to-layer peel strength of 50g or more for a width of 1cm. The activated carbon containing sheet can be used for various deodorizing purposes, and further, as it is excellent both in adsorptivity and mechanical properties of matter, it is suitable as an adsorbing rotor sheet of a solvent recovering device.

6. 发明专利

JPH105580A ACTIVATED CARBON FIBER MOLDED ADSORBENT 失效
公开(公告)号：JPH105580A
公开(公告)日：1998-01-13
申请号：JP18418696
申请日：1996-06-24
申请人： KURARAY CHEMICAL KK
发明人： NAKADA HARUO , OTSUKA KIYOTO
IPC分类号： B01D53/02 , B01J20/20 , C01B31/08
摘要： PROBLEM TO BE SOLVED: To obtain an activated carbon fiber molded adsorbent having high heat resistance and strength and excellent also in formability. SOLUTION: This activated carbon fiber molded adsorbent 6 contains activated carbon fibers as an essential material and fabrillated alkali-proof cellulose fibers as an enveloping material. The cellulose fibers are preferably polynosic rayon fibers or mercerized natural cellulose fibers. The cellulose fiber content of the molded body is preferably 0.3-20 pts.wt. per 100 pts.wt. of the activated carbon fibers. This adsorbent has a high rate of restoration of adsorbing ability by regeneration treatment because of high wet strength, high strength at high temp. and superior heat resistance. It can be used for adsorbing and removing trace impurities and harmful components in liq. and vapor phases, is suitable for use as the filter of a water purifier or an air cleaning unit and is fit to recover a solvent, etc.

7. 发明专利

JPH09308830A AGENT FOR REMOVING ACIDIC GAS AND BASIC GAS 失效
公开(公告)号：JPH09308830A
公开(公告)日：1997-12-02
申请号：JP15031496
申请日：1996-05-21
申请人： KURARAY CHEMICAL KK
发明人： TAJIMA YASUHIRO , FUKUNISHI YOSHIHARU , OTSUKA KIYOTO
IPC分类号： B01D53/38 , B01D53/81 , B01D53/86 , B01J23/72 , C01B32/336
摘要： PROBLEM TO BE SOLVED: To have good functions as an oxidation catalyst even at room temperature and a high capacity to adsorb and remove sulfur compounds in principal offensive odor components and to effectively remove offensive odors from refuse disposal sites, stock raising facilities, and factories. SOLUTION: A agent for removing gas of offensive odors is obtained by a method in which copper (II) chloride or copper (II) chloride and oxide of at least one kind of metal selected from a group consisting of iron, chromium, nickel, cobalt, manganese, zinc, magnesium, and calcium are supported on active carbon. Preferable active carbon is obtained by a method in which a carbonaceous raw material is carbonated, and the product is activated in an atmosphere of water vapor content not exceeding 30vol.%, and is cooled to not exceeding 300 deg.C in the same atmosphere, or active carbon obtained by an ordinary method is heated at least 500 deg.C in nitrogen and/or carbon dioxide substantially not containing oxygen and/or water vapor and cooled to not exceeding 300 deg.C in the same atmosphere.

8. 发明专利

JPH09262273A ADSORBING REMOVER OF SULFUR COMPOUND 失效
公开(公告)号：JPH09262273A
公开(公告)日：1997-10-07
申请号：JP6202996
申请日：1996-02-22
申请人： KURARAY CHEMICAL KK
发明人： TAJIMA YASUHIRO , OTSUKA KIYOTO , NAKAYAMA AKINORI
IPC分类号： A61L9/01 , B01D53/38 , B01D53/81 , B01D53/86 , B01J20/20
摘要： PROBLEM TO BE SOLVED: To provide an adsorbing remover and a removing method capable of easily, safely and efficiently removing, for deodorization, numerous sulfuric odor substances such as methyl mercaptan, hydrogen sulfide, methyl sulfide, and methyl disulfide which are contained in gases having offensive odors. SOLUTION: An adsorbing remover is obtained for hydrogen sulfide, mercaptans, sulfides, and disulfides which are contained in gases by carrying cupric chloride or cupric chloride and oxides of iron, chrome, nickel, etc., in activated carbon. In this case, such activated carbon is desirable as obtained by carbonizing a carbonaceous material, activating in an atmosphere with less than 15% by volume of steam content, and then cooling to 300 deg.C or below in the same atmosphere, or by treating a normally obtained activated carbon at a temperature of about 500 deg.C or above in a nitrogen gas and/or carbon dioxide containing essentially no oxygen and/or steam and then cooling to 300 deg.C or below in the same atmosphere. Consequently, the remover is provided with a high function as an oxidation catalyst at room temperature, showing a superior catalytic performance and a high durability, particularly in the case of using an activated carbon obtained under specific conditions with a low steam content as a support.

9. 发明专利

JPH0940971A REMOVAL OF MERCURY IN LIQUID HYDROCARBON 失效
公开(公告)号：JPH0940971A
公开(公告)日：1997-02-10
申请号：JP21113795
申请日：1995-07-27
申请人： TAIYO SEKIYU KK , KURARAY CHEMICAL KK
发明人： IKUSHIMA KENJI , MIMOTO KENJI , NAKAYAMA AKINORI , OTSUKA KIYOTO
IPC分类号： B01D61/02 , B01J15/00 , B01J20/20 , C01B32/336 , C07C7/12 , C10G25/00 , C10G29/02 , C10G49/02 , C10G73/06 , C10G73/22 , C10G73/32 , C22B3/24 , C22B7/00 , C22B43/00
摘要： PROBLEM TO BE SOLVED: To remove a trace of mercury in a liquid hydrocarbon by bringing a carbon material into contact with an activated carbon whose carbonaceous raw material is activated in a specific atmosphere. SOLUTION: This method for removing mercury in a liquid hydrocarbon uses an activated carbon whose carbonaceous raw material is activated in an atmosphere with a steam content of not more than 15vol.%. Or, it uses an activated carbon whose carbonaceous raw material is activated in an atmosphere with a steam content of not more than 15vol.% and which is made to support an alkali metal sulfide and/or an alkali earth metal sulfide.

10. 发明专利

JPH08119615A ACTIVATED-CARBON SHEET AND ELECTRIC-DOUBLE-LAYER CAPACITOR 失效
公开(公告)号：JPH08119615A
公开(公告)日：1996-05-14
申请号：JP27561194
申请日：1994-10-14
申请人： KURARAY CO , KURARAY CHEMICAL KK
发明人： OTSUKA KIYOTO , TSUSHIMA TETSUYA
IPC分类号： C01B31/08 , H01G11/22 , H01G11/24 , H01G11/34 , H01G11/38 , H01G11/40 , H01G11/42 , H01G11/44 , H01G11/86 , H01G9/058
摘要： PURPOSE: To obtain an electrode and capacitor high in capacity and having a discharge characteristic which is not deteriorated even after repeated charge and discharge by forming a mixture of the fibrous activated carbon, powdery activated carbon and binder. CONSTITUTION: A mixture of 5-50wt.% fibrous activated carbon of phenol, rayon, pitch, etc., 50-90wt.% powdery activated carbon and 5-40wt.% binder contg. a polyolefin pulp such as the pulp consisting of the fiber formed by beating the polyolefin fiber into fibril and the pulp synthesized by agitating the reaction system simultaneously with the synthesis of polymer to pulp the fiber is formed into sheet. The sheet is hot-pressed by a roller press to obtain an activated-carbon sheet having >=700m /g specific surface and 0.5-1.2g/cc density. The activated-carbon sheet is used in the positive electrode 1 and negative electrode 2, a salt of metallic cation and anion is used as the electrolyte, and a soln. 7 of the electrolyte in aq. or org. nonaqueous solvent is used to obtain the coin-shaped capacitor.

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