-
公开(公告)号：DE69007027T2
公开(公告)日：1994-06-23
申请号：DE69007027
申请日：1990-05-24
Applicant: TORAY INDUSTRIES
Inventor： KUBO NAMI , NOYORI MASARU , MORI SHIGEKI , ITO TSUKASA
Abstract: A method of treating water with a precoated filter, wherein powdered cation- and anion-exchange resins and an ion-exchange fiber composed of an ion-exchange polymer and a reinforcing fiber are used as the precoating material, thereby drastically prolonging the service life of the precoating material and improving the quality of treated water. This method is applicable to the treatment of industrial water to be used in and waste water discharged from nuclear and thermal power stations, pharmaceutical companies, and the like.
-
公开(公告)号：DE69007027D1
公开(公告)日：1994-04-07
申请号：DE69007027
申请日：1990-05-24
Applicant: TORAY INDUSTRIES
Inventor： KUBO NAMI , NOYORI MASARU , MORI SHIGEKI , ITO TSUKASA
Abstract: A method of treating water with a precoated filter, wherein powdered cation- and anion-exchange resins and an ion-exchange fiber composed of an ion-exchange polymer and a reinforcing fiber are used as the precoating material, thereby drastically prolonging the service life of the precoating material and improving the quality of treated water. This method is applicable to the treatment of industrial water to be used in and waste water discharged from nuclear and thermal power stations, pharmaceutical companies, and the like.
-
公开(公告)号：CA2033209A1
公开(公告)日：1990-11-25
申请号：CA2033209
申请日：1990-05-24
Applicant: TORAY INDUSTRIES
Inventor： KUBO NAMI , NOYORI MASARU , MORI SHIGEKI , ITO TSUKASA
Abstract: This invention relates to a method for treating water by using a precoated filter. Since the method of the present invention utilizes ion-exchange fibers having an ion-exchange polymer and a reinforcing polymer as the precoating material together with a cation-exchange resin powder and an anion-exchange resin powder, the method made it possible to prominently prolong the lifetime of the precoating material and to improve the quality of the treated water. The method for treating water of the present invention is s~ited for the treatment of water to be used in, or waste eater from atomic power plants, steam power plants, pharmaceutical companies and the like.
-
公开(公告)号：CA2033209C
公开(公告)日：2001-02-13
申请号：CA2033209
申请日：1990-05-24
Applicant: TORAY INDUSTRIES
Inventor： KUBO NAMI , NOYORI MASARU , MORI SHIGEKI , ITO TSUKASA
Abstract: This invention relates to a method for treating water by using a precoated filter. Since the method of the present invention utilizes ion-exchange fibers having an ion-exchange polymer and a reinforcing polymer as the precoating material together with a cation-exchange resin powder and an anion-exchange resin powder, the method made it possible to prominently prolong the lifetime of the precoating material and to improve the quality of the treated water. The method for treating water of the present invention is s~ited for the treatment of water to be used in, or waste eater from atomic power plants, steam power plants, pharmaceutical companies and the like.
-
公开(公告)号：ES2050439T3
公开(公告)日：1994-05-16
申请号：ES90907488
申请日：1990-05-24
Applicant: TORAY INDUSTRIES
Inventor： KUBO NAMI , NOYORI MASARU , MORI SHIGEKI , ITO TSUKASA
Abstract: A method of treating water with a precoated filter, wherein powdered cation- and anion-exchange resins and an ion-exchange fiber composed of an ion-exchange polymer and a reinforcing fiber are used as the precoating material, thereby drastically prolonging the service life of the precoating material and improving the quality of treated water. This method is applicable to the treatment of industrial water to be used in and waste water discharged from nuclear and thermal power stations, pharmaceutical companies, and the like.
-
Patent Agency Ranking
公开(公告)号：JPH0550062A
公开(公告)日：1993-03-02
申请号：JP12619991
申请日：1991-05-29
Applicant: TORAY INDUSTRIES
Inventor： KUBO NAMI , NOYORI MASARU , MORI SHIGEKI , ITO TSUKASA
Abstract: PURPOSE:To provide a precoating method which improves the quality of treated water and prolongs the life of a precoating material. CONSTITUTION:A powder ion exchange resin (a) and ion exchange fibers (b) consisting of a polyacrylic ion exchange polymer having a carboxyl group and a polymer for reinforcement are used as the precoating material in this method for purifying an aq. soln. with a precoated filter.
-
公开(公告)号：JPH0368491A
公开(公告)日：1991-03-25
申请号：JP20729189
申请日：1989-08-09
Applicant: TORAY INDUSTRIES
Inventor： KUBO NAMI , NOYORI MASARU , MORI SHIGEKI , ITO TSUKASA
Abstract: PURPOSE:To prolong the filtration life of a precoat and to improve the quality of treated water by using a powdery ion-exchange resin and an ion-exchange fiber as the precoat material and continuously or stepwise decreasing the ratio of both materials in the circulating direction of water to be treated in the precoat layer. CONSTITUTION:A powdery ion-exchange resin and an ion-exchange fiber are used as the precoat material, and the ratio of the fiber to resin is continuously or stepwise decreased in the circulating direction of water to be treated in the precoat layer. As a result, amorphous iron is adsorbed by the ion-exchange fiber-richer layer without causing significant contraction. A floc of the ion- exchange fiber is then formed in the ion-exchange resin-richer layer with the powdery ion-exchange resin as the nucleus to impart appropriate porosity and compressive strength. Consequently, the service life of the precoat material is drastically prolonged, and the quality of treated water is improved by the high ion exchangeability of the fiber having a large surface area.
-
公开(公告)号：JPH0356188A
公开(公告)日：1991-03-11
申请号：JP19334889
申请日：1989-07-25
Applicant: TORAY INDUSTRIES
Inventor： KUBO NAMI , NOYORI MASARU , MORI SHIGEKI , ITO TSUKASA
IPC: C02F1/42
Abstract: PURPOSE:To extend the filtering life of a precoating layer and to enhance the quality of treated water by using a powder ion exchange resin and an ion exchange filter as a precoating material and setting the water content of the ion exchange fiber to a specific numerical value. CONSTITUTION:A powder ion exchange resin pref. has a particle size of about 1 - 250 mum. It is important that the water content of an ion exchange fiber is within a range of 1.0 - 5.0 and there is no special limit in the shape of said fiber but it pref. consists of an ion exchange polymer and a reinforcing polymer and the fiber length thereof is pref. about 0.1 - 1mm. Therefore, when the powder ion exchange resin and the ion exchange fiber are stirred and mixed in water, the ion exchange fiber becomes the nucleus of the powder ion exchange resin to form floc and a proper void ratio and compression strength are imparted to drastically extend the life of a precoating material and, by the excellent ion exchange capacity of the fiber having a large surface area, the quality of treated water can be enhanced in addition.
-
公开(公告)号：JPH03185A
公开(公告)日：1991-01-07
申请号：JP13077789
申请日：1989-05-24
Applicant: TORAY INDUSTRIES
Inventor： KUBO NAMI , NOYORI MASARU , MORI SHIGEKI , ITO TSUKASA
Abstract: PURPOSE:To hold the strength of a precoat material in a filter and to effectively prevent the compaction of a precoat layer in the filter by using ion exchange fiber constituted of powder ion exchange resin, ion exchange polymers and reinforcing polymers. CONSTITUTION:At the time of purifying water used in a nuclear power station or the like by a precoat filter, as a precoat material, ion exchange fiber constituted of powder ion exchange resin, ion exchange polymers such as crosslinked and insolubilized polystyrene-series compounds and reinforcing polymers such as poly-alpha-olefine is used. By this method, the ion exchange resin contg. the reinforcing polymers becomes the nucleus of the powder ion exchange resin to form a floc body and to provide the precoat material with suitable void ratio and compressive strength. Thus, the service life of the precoat material is remarkably prolonged and the quality of treated water is furthermore improved.
-
公开(公告)号：JPS62210275A
公开(公告)日：1987-09-16
申请号：JP5331186
申请日：1986-03-10
Applicant: TORAY INDUSTRIES , NIPPON TUNGSTEN
Inventor： SHINJO KIYOKAZU , IWAKE YOSHIO , HARA YOSHIMICHI , EGASHIRA MASAMITSU , IWAMURA KAZUNORI , SASAKI TOYOSHIGE , MORI SHIGEKI
Abstract: PURPOSE:To decrease the wear of a cam ring and a vane by forming the ceramic part of the cam ring out of ceramics composed of alumina and titanium carbide and also forming the vane out of a formation of alumina, ceramics, synthetic resins and the like. CONSTITUTION:A cam ring 11 and a rotor 14 whose inside wall parts, at least, are formed out of ceramics are formed out of ceramics composed of alumina with 5-50wt% of titanium carbide added to it, and a vane 15 is formed out of any of alumina, ceramics composed of alumina with 5-50wt% of titanium carbide added to its, silicon carbide, silicon nitride, and a formation of polyamide resin mixed with solid lubricant. By this constitution, the wear of the cam ring 11 and the vane 15 may be decreased and the efficient transferring of a slurry solution over a long period is possible.
-
-
-
-
-
-
-
-
-
Search Results
16
records
(took 0.024 seconds)
