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公开(公告)号：US3900422A
公开(公告)日：1975-08-19
申请号：US40064573
申请日：1973-09-25
Applicant: AGENCY IND SCIENCE TECHN
Inventor： TERAJIMA KAZUKI , TOMITA SHIGERU , MATSUDA YOSHINDO , ABE KEIJI
CPC classification number: C02F1/286 , B01J20/22 , C02F2101/20 , C22B3/24 , Y02P10/234
Abstract: Heavy metal adsorbents comprising granules of a mixture of nitrohumic acid and at least one binder selected from the group consisting of a carboxyl group-containing polymeric compound and a water-insoluble salt thereof. These heavy metal adsorbents are produced advantageously by either a process wherein a mixture of nitrohumic acid and a carboxyl group-containing polymeric compound is kneaded with an aqueous solution of alkali and the kneaded mixture is first subjected to an acid treatment and then shaped into granules, or a process wherein nitrohumic acid and a carboxyl group-containing polymeric compound are dissolved in an aqueous solution of alkali, the solution is acidified to form a precipitate and then the precipitate is separated and shaped into granules. The granular products thus obtained can be further improved in mechanical strength by means of a heat treatment.
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公开(公告)号：DE2434632A1
公开(公告)日：1975-02-13
申请号：DE2434632
申请日：1974-07-18
Applicant: AGENCY IND SCIENCE TECHN
Inventor： TERAJIMA KAZUKU , TOMITA SHIGERU , MATSUDA YOSHINDO , ABE KEIJI
Abstract: New adsorbents comprising granules of a mixture of nitrohumic acid and one or more proteins. These adsorbents are utilizable effectively for adsorbing heavy metals and oils contained in water. They are produced advantageously by either a process wherein a mixture of nitrohumic acid and a protein is kneaded with an aqueous solution of alkali and the kneaded mixture is first subjected to an acid treatment and then shaped into granules, or a process wherein nitrohumic acid and a protein are dissolved in an aqueous solution of alkali, the solution is acidified to form a precipitate and then the precipitate is separated and shaped into granules. The granular products thus obtained can be further improved in mechanical strength by means of a heat treatment.
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公开(公告)号：DE2348436A1
公开(公告)日：1974-05-02
申请号：DE2348436
申请日：1973-09-26
Applicant: AGENCY IND SCIENCE TECHN
Inventor： TERAJIMA KAZUKI , TOMITA SHIGERU , MATSUDA YOSHINDO , ABE KEIJI
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公开(公告)号：CA1063583A
公开(公告)日：1979-10-02
申请号：CA264307
申请日：1976-10-27
Applicant: AGENCY IND SCIENCE TECHN
Inventor： TOMITA SHIGERU , MATSUDA YOSHINDO , TERAJIMA KAZUKI , ABE KEIJI
Abstract: Title of the Invention: OIL ADSORBENT AND A METHOD OF PRODUCING SAME An oil adsorbent comprising natural fibers the surface of which is coated with a water-repellent paraffin layer which is in turn coated with an elastic rubber layer. The adsorbent is manufactured by treating the surface of the natural fibers with a paraffin emulsion, drying the fibers to form a water repellent paraffin layer thereon, treating the product with a latex, and then curing the latex to form an elastic rubber layer on the paraffin layer. The oil adsorbent has such advantages that it floats on the surface of water stably for a long period of time retaining its original form, that the contained paraffin is not back extracted by adsorbed oil and that it does not cause any trouble on burning.
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公开(公告)号：CA1036575A
公开(公告)日：1978-08-15
申请号：CA205181
申请日：1974-07-19
Applicant: AGENCY IND SCIENCE TECHN
Inventor： TERAJIMA KAZUKI , TOMITA SHIGERU , MATSUDA YOSHINDO , ABE KEIJI
Abstract: New adsorbents comprise granules of a mixture of nitrohumic acid and one or more proteins. These adsorbents are utilizable effectively for adsorbing heavy metals and oils contained in water. They are produced by either a process wherein a mixture of nitrohumic acid and a protein is kneaded with an aqueous solution of alkali and the kneaded mixture is first subjected to an acid treatment and then shaped into granules, or a process wherein nitrohumic acid and a protein are dissolved in an aqueous solution of alkali, the solution is acidified to form a precipitate and then the precipitate is separated and shaped into granules. The granular products thus obtained can be further improved in mechanical strength by means of a heat treatment.
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Patent Agency Ranking
公开(公告)号：JPH05337469A
公开(公告)日：1993-12-21
申请号：JP17386392
申请日：1992-06-08
Applicant: AGENCY IND SCIENCE TECHN
Inventor： TANAKA KEIICHI , ABE KEIJI , HISANAGA TERUAKI
IPC: B01J21/06 , B01J23/06 , B01J23/30 , B01J35/02 , C02F1/32 , C02F1/72 , C02F1/76 , C02F1/78 , C02F9/00
Abstract: PURPOSE:To shorten the irradiation time and to completely decompose the harmful material into carbon dioxide and other inorg. material by oxidizing waste water and then irradiating the water with light in the presence of a semiconductor catalyst. CONSTITUTION:Waste water is previously oxidized and then irradiated with light in the presence of a semiconductor catalyst to decompose the harmful material. The waste water is oxidized by ozone, hydrogen peroxide or chlorine and then irradiated with UV. semiconductor powders are then suspended in the pretreated water or the water is brought into contact with a membrane on which the semiconductor powder is immobilized, and the waste water is irradiated with light directly or through a glass vessel. A lamp with the emitting light contg. UV and a part of visible light is used as the light source.
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公开(公告)号：JPS62110709A
公开(公告)日：1987-05-21
申请号：JP25039185
申请日：1985-11-08
Applicant: AGENCY IND SCIENCE TECHN
Inventor： TERAJIMA KAZUO , TOMITA SHIGERU , ABE KEIJI
IPC: B01D17/04 , B01D17/022 , B01D17/05 , B01D39/14
Abstract: PURPOSE:To easily deterge the waste water of the emulsifying oil contg. a large amount of a surface active agent by using a filter medium obtd. by mixing an alkaline earth metal compd. or its alloy to a fibrous material, and then forming it to a nonwoven fabric, a pile and a felt like filter mediums. CONSTITUTION:The filter medium is formed by mixing the powders of the alkaline earth metal compds. such as MgO, MgCO3, Mg(OH)2, CaO, CaCO3, Ca(OH)2 and CaSO4, etc., or the powders of the alloy contg. said compds. such as CaSi2, MgCaSi, MgSiFe and CaSiAl, etc., to a synthetic fiber or a natural fiber and then by forming it to a paper like and a laminate structure according to a felt making method or a paper making method. And then, the waste water of the emulsifying oil is filtered by using said filter medium. Thus, an oil component constituting the emulsifying oil and the surface active agent can be removed at a same time.
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公开(公告)号：JPH0975959A
公开(公告)日：1997-03-25
申请号：JP23742895
申请日：1995-09-14
Applicant: AGENCY IND SCIENCE TECHN
Inventor： TANAKA KEIICHI , ABE KEIJI
Abstract: PROBLEM TO BE SOLVED: To rapidly treat a waste water having high density of contaminants while maintaining the effect to completely change org. matter into inorg. matter which is the advantage of a photocatalyst, by treating the waste water by ozone in the presence of a photocatalyst and under irradiation of light of specified or shorter wavelengths. SOLUTION: When a glass tube (d) coated with a photocatalyst is filled with a waste water, the waste water is made in contact with the photocatalyst applied on the inner surface of the glass tube (d). Also the waste water is irradiated with light of mol/l concn. is supplied and irradiated with light while ozone is introduced into the liquid by 0.5g/hr rate, 91% of the soln. can be decomposed in 15min. The photocatalyst includes titanium dioxide, zinc oxide, zirconium oxide, tungsten oxide, etc.
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公开(公告)号：JPH06322135A
公开(公告)日：1994-11-22
申请号：JP13678393
申请日：1993-05-14
Applicant: AGENCY IND SCIENCE TECHN
Inventor： UEDA HISASHI , ABE KEIJI , HIGUCHI KATSUHIKO
IPC: C08G79/00
Abstract: PURPOSE:To open the way for effective utilization and solidify the subject copolymer capable of converting polybiphenyl chloride into a nontoxic solid substance by subjecting the polybiphenyl chloride and a specific metallic acid ester to the dechlorinating copolymerization. CONSTITUTION:Polybiphenyl chloride and a metallic acid ester expressed by the formula M(OR)4 (M is titanium, zirconium or niobium; R is aliphatic group) are subjected to the dechlorinating copolymerization in the presence of a radical polymerization catalyst in an organic solvent (preferably an electron donative organic solvent) to afford the solid copolymer. Furthermore, the reaction is preferably carried out by irradiating the reactional mixture with light.
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公开(公告)号：JPS61139327A
公开(公告)日：1986-06-26
申请号：JP26004184
申请日：1984-12-11
Applicant: Agency Ind Science Techn , Ikeda Bussan Co
Inventor： TOMITA SHIGERU , MATSUDA YOSHITO , ABE KEIJI , TERAJIMA KAZUO , AKIYAMA TAKEO , TOSHIDA SADATOSHI
CPC classification number: Y02A40/81
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