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1. 发明专利

JP2000044252A PRODUCTION OF FINE SPHERICAL PARTICLE OF CARBONATE OR HYDROXIDE OF NICKEL, COBALT OR COPPER 失效
公开(公告)号：JP2000044252A
公开(公告)日：2000-02-15
申请号：JP35418898
申请日：1998-12-14
申请人： SAKAI CHEMICAL INDUSTRY CO
发明人： NAGANO KAZUHIKO , ABE KAZUMITSU , KAMISAKA NARIFUMI , FUKAI KIYOSHI , HATANAKA TSUTOMU , OGAMA SHINJI , NAKAO HIROSHI , YONEDA MINORU , MIZUTANI HIDETO
IPC分类号： B01J23/70 , B01J37/00 , B22F9/02 , C01B13/32 , C01G3/00 , C01G3/02 , C01G51/00 , C01G51/04 , C01G51/06 , C01G53/04 , C01G53/06
摘要： PROBLEM TO BE SOLVED: To provide a production method of fine spherical particles of carbonates or hydroxides of elements selected from nickel, copper and cobalt. SOLUTION: Carbonates or hydroxides of nickel, cobalt or copper expressed by the formula of M(CO3)x/2.(OH)y (M is Ni, Co or Cu, and x, y are numbers satisfying 0

2. 发明专利

JPH08155285A DOUBLE CONICAL MIXER 失效
公开(公告)号：JPH08155285A
公开(公告)日：1996-06-18
申请号：JP33110994
申请日：1994-12-07
申请人： SAKAI CHEMICAL INDUSTRY CO
发明人： ABE KAZUMITSU , YOKOO TAKAAKI , TOYONAGA KATSUHIRO
IPC分类号： B29B7/12 , B01F9/02
摘要： PURPOSE: To increase mixing speed, in a double conical mixer consisting of two conical container parts, by simultaneously collapsing content to be mixed in a plurality of directions by making the conical axis of at least one conical container part eccentric from the center line of a mixing container. CONSTITUTION: The respective conical axes 23A, 24A of two conical container parts 23, 24 are made eccentric from the center line A crossing the center of the conical axis 22A of a rotary shaft 22 at a right angle on the opposite sides of the center line A. The lid members 26 arranged on the apex side of both conical container parts 23, 24 are opened to charge contents to be mixed into a mixing container 25 and the mixing container 25 is rotated by the rotary shaft 22. Whereupon, the contents on the respective apex sides of both conical container parts 23, 24 are raised and the contents inclined at an angle of repose or more flow in the direction crossing the rotary shaft 22 at a right angle. Since the conical axes 23A, 24B are made eccentric from the center line A, the contents flow toward the eccentric apexes of the conical container parts. As a result, the contents collapse in the direction parallel to the vertical direction of the rotary shaft 22 at the same time.

3. 发明专利

JPH06321630A COMPOSITION FOR CERAMIC DIELECTRIC 失效
公开(公告)号：JPH06321630A
公开(公告)日：1994-11-22
申请号：JP5558394
申请日：1994-03-25
申请人： SAKAI CHEMICAL INDUSTRY CO
发明人： ABE KAZUMITSU , AOKI MASASHI , RIKIMARU HIROAKI , HIDAKA KAZUHISA
IPC分类号： C01G23/00 , C04B35/46 , C04B35/48 , C04B35/49 , C04B35/622 , H01B3/12 , H01G4/12
摘要： PURPOSE:To obtain a compsn. giving a ceramic dielectric having a high relative dielectric constant, high insulation resistance and low dielectric tangent as well as high sintered density and excellent in electrical characteristics by firing at a low temp. CONSTITUTION:This compsn. is based on a perovskite compd. contg. at least one kind of element selected from among Mg, Ca, Sr, Ba, Pb and rare earth elements and at least one kind of element selected among Ti, Zr, Hf and Sn. The perovskite compd. consists of a perovskite compd. obtd. by a calcining method and 0.5-50wt.% perovskite compd. obtd. by a wet method.

4. 发明专利

JPH02219803A ALPHA-OLEFIN POLYMERIZATION CATALYST, POLYMER/PEROVSKITE COMPOUND COMPLEX PREPARED BY USING THE SAME CATALYST AND PRODUCTION OF THE SAME COMPLEX 失效
公开(公告)号：JPH02219803A
公开(公告)日：1990-09-03
申请号：JP4132189
申请日：1989-02-21
申请人： SAKAI CHEMICAL INDUSTRY CO
发明人： ABE KAZUMITSU , FUKUNAGA TAKESHI
IPC分类号： C08F4/651 , B29C67/04 , C08F4/00 , C08F4/60 , C08F4/658 , C08F4/6592 , C08F10/00 , H01G4/12 , H01L41/187
摘要： PURPOSE:To obtain a complex which functions as an alpha-olefin polymerization catalyst and is useful as highly functional electronic material after polymerization by polymerizing an alpha-olefin in the presence of a catalyst comprising a specified perovskite compound complex. CONSTITUTION:The purpose complex is obtained by polymerizing an alpha-olefin in the presence of a catalyst comprising a perovskite compound complex prepared by doping a perovskite compound of ABO3 (wherein A is at least one group A element selected from among alkaline earth metals and Pb and B is at least one group B element selected from among Ti, Zr, Hf and Sn) with 0.1-3mol% oxide of at least one element selected from among rare earth elements, transition elements, Bi and Sb to coat the complex with the perovskite compound. This process gives a complex composed of the perovskite compound coated with the alpha-olefin polymer, and this complex has such a high volume resistivity that it can give a more highly functional ceramic derivative.

5. 发明专利

JPS6445725A PRODUCTION OF TITANIUM OXIDE BURNED PRODUCT 失效
公开(公告)号：JPS6445725A
公开(公告)日：1989-02-20
申请号：JP12413488
申请日：1988-05-21
申请人： MITSUBISHI HEAVY IND LTD , SAKAI CHEMICAL INDUSTRY CO
发明人： SERA TOSHIKUNI , MITSUOKA SHIGEAKI , KOBAYASHI TAKAFURU , SETO TORU , MIYAKE JUNSUKE , ABE KAZUMITSU , NAKATSUJI TADAO , BABA TOSHIKATSU , MATSUDA TOSHIAKI
IPC分类号： B01J21/06 , B01J23/28 , B01J23/30 , B01J32/00 , C01G23/00 , C04B35/46
摘要： PURPOSE:To enable production of titanium oxide calcined product having large surface area and excellent heat resistance as well as excellent strength after molding and suitable as a carrier or catalyst, by calcining solated metatitanic acid containing fine-particle silicic acid. CONSTITUTION:A fine-particle silicic acid known also as white carbon of another name and having extremely large specific surface area is added to metatitanic acid sol and mixed while stirring and the mixture is then calcined. As necessary, after fine-particle silicic acid is added to metatitanic acid, the metatitanic acid may be solated. Fine-particle silicic acid can be more uniformly dispersed into metatitanic acid by solation, because metatitanic acid is gel-form. A mixed of metatitanic acid obtained thus and fine-particle silicic acid is washed with water and then calcined at about

6. 发明专利

JPS6320562B2 失效
公开(公告)号：JPS6320562B2
公开(公告)日：1988-04-28
申请号：JP4073878
申请日：1978-04-05
申请人： SAKAI CHEMICAL INDUSTRY CO
发明人： ABE KAZUMITSU , NAKATSUJI TADAO , BABA TOSHIKATSU
IPC分类号： B01D53/94 , B01D53/86 , B01J19/32 , B01J35/04

7. 发明专利

JPS62252328A METHOD FOR PURIFYING INORGANIC COMPOUND 失效
公开(公告)号：JPS62252328A
公开(公告)日：1987-11-04
申请号：JP9640286
申请日：1986-04-24
申请人： SAKAI CHEMICAL INDUSTRY CO
发明人： ABE KAZUMITSU , AOKI MASASHI , HIDAKA KAZUHISA
IPC分类号： C01F7/46 , B01J39/00 , B01J47/00 , B01J47/10 , C01F11/18 , C01F11/46 , C01G3/12 , C01G9/02 , C01G23/04 , C01G25/00 , C01G49/06 , C01G53/04
摘要： PURPOSE:To purify an inorganic compound suitable as electronic material, etc., by simple facilities efficiently and in high degree, by bringing a specific inorganic compound into contact with an ion exchange resin in an aqueous medium. CONSTITUTION:A water-insoluble inorganic compound (e.g. metatitanic acid) containing a water-soluble ion as an impurity is washed with water once or more times, redispersed into an aqueous medium to give aqueous slurry. Then, the slurry is adjusted to a pH which is apart from the isoelectric point of precipitate in the slurry, brought into contact with >= equivalent based on the water-soluble ion in the slurry of strongly basic anion exchange resin and treated. Then, the pH of the slurry is adjusted in such a way that the pH is coincident with the isoelectric point to aggregate precipitate particles. Then, the ion exchange resin is removed from the slurry, the prepared cake of the precipitate is dried to give an inorganic compound having

8. 发明专利

JPS62230623A PRODUCTION OF PEROVSKITE-TYPE COMPOUND CONTAINING TUNGSTEN 失效
公开(公告)号：JPS62230623A
公开(公告)日：1987-10-09
申请号：JP7201186
申请日：1986-03-29
申请人： SAKAI CHEMICAL INDUSTRY CO , NAT INST RES INORGANIC MAT
发明人： ABE KAZUMITSU , AOKI MASASHI , NAKATSUJI TADAO , HIDAKA KAZUHISA , SEGAWA KAYOKO , KIRA YOSHIYUKI , SHIRASAKI SHINICHI
IPC分类号： C01G41/00 , C01G45/00 , C01G49/00 , C01G53/00 , C04B35/00 , H01B3/12
摘要： PURPOSE:To obtain fine powder of an easily sinterable tungsten-containing lead-type perovskite compound expressed by formula PbAxW1-xO3, by preliminarily precipitating a part of lead or component A and whole tungsten in the form of tungstate and precipitating the remaining components. CONSTITUTION:A tungsten-containing lead-type perovskite-type compound expressed by formula PbAxW1-xO3 (x is 1/2 or 2/3; A is Fe, Ni, etc.) is produced by the following method. An aqueous solution of a tungstate of an amount necessary for forming the objective composition is mixed with an aqueous solution of lead or the component A of an amount equivalent to the tungsten in the tungstate. A tungstic acid salt of lead or the component A is precipitated by this process. The precipitate is suspended in water or an alcohol and the obtained slurry is mixed with an aqueous solution or alcoholic solution of lead and/or component A of amounts necessary for attaining objective composition. A homogeneous precipitate of the whole components can be produced from the above liquid mixture. The precipitate is filtered, dried and calcined at 400-1,000 deg.C.

9. 发明专利

JPS62207719A PREPARATION OF RAW MATERIAL POWDER OF LEAD BASE PEROVSKITE TYPE COMPOUND OXIDE CERAMIC CONTAINING NIOBIUM 失效
公开(公告)号：JPS62207719A
公开(公告)日：1987-09-12
申请号：JP4932086
申请日：1986-03-06
申请人： NAT INST RES INORGANIC MAT , SAKAI CHEMICAL INDUSTRY CO
发明人： SHIRASAKI SHINICHI , ABE KAZUMITSU , AOKI MASASHI , NAKATSUJI TADAO , HIDAKA KAZUHISA , SEGAWA KAYOKO , KIRA YOSHIYUKI
IPC分类号： C01G49/00 , C01G33/00 , C01G51/00 , C01G53/00 , C04B35/00 , C04B35/626
摘要： PURPOSE:To obtain easily the sinterable titled raw material powder having high perovskite content by forming coprecipitate of a specified metallic component and Nb, adding soln. of a Pb component and liquid for forming precipitate thereto, and calcining whole precipitate formed thereby. CONSTITUTION:Liquid for forming precipitate is added to aq. or alcoholic soln. of a Nb component and component A (at least one among Fe, Co, Ni, Mg, Mn, Zn, Cd, and In) to form coprecipitate of Nb and A component. Aq. soln. of Pb component is added to the slurry of the suspension, and the liquid for forming precipitate is added to the mixture. Formed precipitate is filtered dried and calcined at 400-1,000 deg.C after mixing, if necessary, with raw materials of ceramic. By this method, raw material powder for a perovskite type compound oxide ceramic contg. Nb expressed by PbAxNb1-xO3 is obtd. In the formula, x is 1/2 or 1/3. The raw material powder is fine particle and easily sinterable having characteristically high forming rate of perovskite.

10. 发明专利

JPS6136976B2 失效
公开(公告)号：JPS6136976B2
公开(公告)日：1986-08-21
申请号：JP4144576
申请日：1976-04-12
申请人： SAKAI CHEMICAL INDUSTRY CO
发明人： ABE KAZUMITSU , RIKIMARU HIROAKI , YAMAZAKI IWAO , HASEGAWA HIROSHI
IPC分类号： B01D53/94 , B01J20/22 , B01J21/06 , B01J37/00

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