中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

64 records (took 0.027 seconds)

    DISSOLVING METHOD AND RECOVERING METHOD FOR METAL
    51.
    发明专利
    DISSOLVING METHOD AND RECOVERING METHOD FOR METAL 失效

    公开(公告)号：JPH0711353A

    公开(公告)日：1995-01-13

    申请号：JP10131693

    申请日：1993-04-27

    Applicant: AGENCY IND SCIENCE TECHN ,  NIPPON TENNEN GAS KOGYO KK

    Inventor： NAKAO YUKIMICHI ,  SUGIURA TSUTOMU ,  KAWABUCHI HIDETOSHI ,  NAKAZAWA HIROYUKI

    IPC: C22B3/04 ,  C22B11/00

    Abstract: PURPOSE:To provide the method capable of efficiently dissolving and recovering noble metals. CONSTITUTION:A halogen alone and a soluble halogen compd. are dissolved into a liquid mixture consisting of two kinds of solvent mixtures selected from org. solvents and water and having low solubility with each other. While this liquid mixture is kept stirred, the material of the noble metal is immersed therein and is melted as a complex. The dissolving liquid is left standing still, by which the noble metal is separated; thereafter, the respective solvents are separated and the noble metal complex in the solvent phase in which the noble metal complex is dissolved at a high concn. is reduced and the noble metal is recovered. The other solvent phase in which the concn. of the noble metal complex is low is regenerated and reutilized as the dissolving liquid for the next time.

    METHOD FOR SELECTIVELY DISSOLVING METAL
    52.
    发明专利
    METHOD FOR SELECTIVELY DISSOLVING METAL 失效

    公开(公告)号：JPH06340932A

    公开(公告)日：1994-12-13

    申请号：JP10131793

    申请日：1993-04-27

    Applicant: AGENCY IND SCIENCE TECHN ,  NIPPON TENNEN GAS KOGYO KK

    Inventor： NAKAO YUKIMICHI ,  SUGIURA TSUTOMU ,  KAWABUCHI HIDETOSHI ,  NAKAZAWA HIROYUKI

    IPC: C22B3/04 ,  C22B11/00

    Abstract: PURPOSE:To selectively and efficiently recover only noble metal in the method for allowing a metallic material contg. noble metal and base metal to react in the soln. of a soluble halogen compd. and elemental halogen by using a specified solvent. CONSTITUTION:A metallic material contg. noble metal and base metal is dipped in a soln. of an elemental halogen and soluble halogen compd. to form a metal halide by oxidizing the metal with the elemental halogen. A polyhalogenometal anion complex is then formed with the soluble halogen compd. In this case, a solvent capable of dissolving the polyhalogenometal anion complex and incapable of dissolving base metal is used. Although such a solvent is not specified, a combination of methanol, tetraethyl-ammonium iodide and iodine is exemplified as the solvent, and gold is soluble and copper and Ni are sparingly soluble in the solvent. Further, an oxide film can be formed on the surface of the base metal of the metallic material prior to dissolution.

    METHOD FOR DYEING WITH NOBLE METAL HYDROSOL UTILIZING THERMALLY REVERSIBLE HIGH POLYMER AS RESIST SIZE
    54.
    发明专利
    METHOD FOR DYEING WITH NOBLE METAL HYDROSOL UTILIZING THERMALLY REVERSIBLE HIGH POLYMER AS RESIST SIZE 失效

    公开(公告)号：JPH0291286A

    公开(公告)日：1990-03-30

    申请号：JP23798088

    申请日：1988-09-22

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： ITO SHOJI ,  NAKAO YUKIMICHI ,  MIZOGUCHI KENSAKU ,  YAMAUCHI AIZO ,  KOBAYASHI TOSHIHIRO

    IPC: D06P1/44 ,  D06P5/12

    Abstract: PURPOSE:To obtain a dyed material rich in unconventional high-class feeling by printing a textile product with a resist size consisting of a thermally reversible high polymer and then dipping the textile product in a noble metal hydrosol containing a cationic surfactant above the phase transition temperature essential to the afore-mentioned resist size. CONSTITUTION:A textile product consisting of natural, synthetic fiber, etc., is printed with a resist size consisting of a thermally reversible high polymer, i.e., a high polymer (e.g., polyN-isopropylacrylamide) capable of phase transition from a hydrophilic (low temperature) to a hydrophobic phases (high temperature) with temperature in a state coexisting with water and the resultant textile product is then dipped in a noble metal hydrosol containing a cationic surfactant above the phase transition temperature essential to the afore-mentioned resist size to dye parts other than the above-mentioned printed part. The afore- mentioned size is subsequently removed with cold water below the phase transition temperature. The textile product is dyed to brown, violet or red color in the case of gold hydrosol and to yellow color in the case of silver hydrosol.

    DYEING WITH HYDROSOL OF NOBLE METAL
    55.
    发明专利
    DYEING WITH HYDROSOL OF NOBLE METAL 失效

    公开(公告)号：JPH0261182A

    公开(公告)日：1990-03-01

    申请号：JP20968688

    申请日：1988-08-24

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： NAKAO YUKIMICHI ,  ITO SHOJI ,  KAERIYAMA KYOJI ,  YAMAUCHI AIZO ,  KOBAYASHI TOSHIHIRO

    IPC: D06P3/00 ,  D06P1/00 ,  D06P5/00

    Abstract: PURPOSE:To perform dyeing of fabric to elegant color having high color fastness by treating a formed fiber article with a metal salt mordant and immersing in a hydrosol of a noble metal having negative charge. CONSTITUTION:A formed fiber article consisting of a woven or knit fabric of silk or wool is treated with a metal salt mordant such as aluminum acetate or basic chromium oxide and then immersed in a hydrosol of a noble metal having negative charge (e.g., chloroauric acid or silver nitrate) to obtain the dyed fabric exhibiting characteristic elegant color tone of the noble metal.

    PRODUCTION OF FINE METAL POWDER
    56.
    发明专利
    PRODUCTION OF FINE METAL POWDER 失效

    公开(公告)号：JPS63297511A

    公开(公告)日：1988-12-05

    申请号：JP13294787

    申请日：1987-05-28

    Applicant: AGENCY IND SCIENCE TECHN ,  FUJI POLYMER IND

    Inventor： NAKAO YUKIMICHI ,  KAERIYAMA KYOJI ,  YAMAUCHI AIZO ,  YOTSUYA TERUHISA ,  NINOMIYA YAMAHITO

    IPC: B22F9/24

    Abstract: PURPOSE:To produce fine metal powder having unique electrical and magnetic characteristics by adding metal colloid to a bath contg. an inorg. metal salt or a complex salt and a reducing agent for the salt with stirring and by mixing them. CONSTITUTION:Metal colloid such as Pd colloid is added to a bath contg. an inorg. metal salt such as chloride or sulfate of Ni or Co or a complexing agent forming a complex salt such as ammonia, ethylene-diamine, pyrophosphate or citric acid and further contg. a reducing agent such as sodium hypophosphite, potassium hypophosphite or form-aldehyde and they are mixed. The Pd colloid acts as the nuclei of a catalyst and reduction reaction proceeds rapidly and uniformly around the nuclei, so useful metal powder having superior electrical and magnetic characteristics can stably be produced.

    PRODUCTION OF METAL PLATED INORGANIC PARTICLES
    57.
    发明专利
    PRODUCTION OF METAL PLATED INORGANIC PARTICLES 失效

    公开(公告)号：JPS6379975A

    公开(公告)日：1988-04-09

    申请号：JP22453386

    申请日：1986-09-22

    Applicant: AGENCY IND SCIENCE TECHN ,  TODA KOGYO CORP

    Inventor： NAKAO YUKIMICHI ,  KAERIYAMA KYOJI ,  SUDA MASAO ,  MATSUI TOSHIKI ,  IMAI TOMOYUKI ,  HORIISHI NANAO

    IPC: C01G49/00 ,  C01B33/159 ,  C01B39/00 ,  C01B39/02 ,  C01F7/02 ,  C01F11/18 ,  C01G23/00 ,  C03C17/10 ,  C08K9/04 ,  C09D11/00 ,  C23C18/18 ,  C23C18/30 ,  C23C18/31 ,  H01B1/00 ,  H01B1/22

    Abstract: PURPOSE:To produce inorg. particles surface-plated uniformly with a metal and having superior electrical conductivity by pretreating the surfaces of inorg. particles with an aq. soln. of a specified metal salt, allowing colloidal Pd to be adsorbed on the pretreated surfaces and carrying out electroless plating. CONSTITUTION:The surfaces of particles of an inorg. substance such as magnetoplumbite type ferrite, spinel type ferrite, silica gel, TiO2, Al2O3 or zeolite are pretreated by immersion in an aq. soln. of the chloride of an alkaline earth metal such as BaCl2, CaCl2, SrCl2 or MgCl2 or salt of a transition metal in the 4th period such as nickel sulfate, nickel acetate, cobalt sulfate, ferrous sulfate or ferric chloride. The concn. of the soln. is 0.01-3mol/l, the temp. is 0-100 deg.C and the immersion time is 2-60min. A suspension of the pretreated particles is mixed with Pd hydrosol contg. an anionic or nonionic surfactant and the mixture is stirred to allow colloidal Pd to be adsorbed on the surfaces of the particles. The particles are then washed, separated by filtration and plated with a metal such as Ni or Cu in an electroless plating bath.

    HIGH SENSITIVITY DETECTION OF PROTEIN
    59.
    发明专利
    HIGH SENSITIVITY DETECTION OF PROTEIN 失效

    公开(公告)号：JPS62228168A

    公开(公告)日：1987-10-07

    申请号：JP5181586

    申请日：1986-03-10

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： YOKOYAMA NAOKI ,  NAKAO YUKIMICHI ,  OHASHI SHINICHI ,  KAERIYAMA KYOJI ,  TSUDA KEISHIRO ,  SUDA MASAO ,  IMAI TOMOYUKI

    IPC: G01N31/00 ,  G01N33/68

    Abstract: PURPOSE:To safely and economically detect protein immobilized on a membrane with high sensitivity, by a simple means wherein the membrane having protein immobilized thereon is treated with a palladium colloid solution with predetermined pH stabilized by a surfactant and a base metal is applied to the treated membrane by an electroless plating. CONSTITUTION:A membrane such as a nitrocellulose having protein immobilized thereon is treated with a palladium colloid solution with pH 5 or less stabilized by an anionic surfactant such as sodium dodecylbenzenesulfonate and a base metal is subsequently applied to the treated membrane by electroless plating. The content of palladium in the palladium colloid solution is 0.01-30mmol/l and the content of the surfactant is 0.001-5wt%. The pH of said colloid solution is pref. adjusted by an acid such as acetic acid or hydrochloric acid. The membrane having protein immobilized thereon is immersed in the palladium colloid solution to be stained and, thereafter, the electroless plating of the base metal is applied to said membrane to enhance detection sensitivity.

Patent Agency Ranking