公开(公告)号：JP2000005559A

公开(公告)日：2000-01-11

申请号：JP18993198

申请日：1998-06-18

Applicant: AGENCY IND SCIENCE TECHN

Inventor： SUZUKI KENJI ,  HORIUCHI TATSURO ,  SUGIYAMA TOYOHIKO ,  OZAKI TOSHIHIKO ,  SHIBAZAKI YASUO

IPC: B01D53/34 ,  B01D53/04 ,  B01D53/14 ,  B01D53/62 ,  B01D53/81 ,  B01J20/18 ,  C01B32/50 ,  C01B31/20

Abstract: PROBLEM TO BE SOLVED: To provide a method for separating carbon dioxide at high temps. using hydrosodalite. SOLUTION: When a specified gas component (carbon dioxide) is separated and recovered from a high-temp. waste combustion gas, the high-temp. waste combustion gas as such or controlled to a fixed temp. is passed through hydrosodalite to adsorb or react the component on and with the hydrosodalite, then the specified component is selectively separated by the difference between the adsorption temp. and/or reaction temp. of the specified component and the adsorption temp. and recovered. The specified component is separated and recovered in this way at high temps. without cooling the waste gas. Further, since the sensible heat of the separated and recovered specified component such as carbon dioxide is utilized in the catalytic reaction, the specified component is efficiently converted to resources at a low cost, the heat energy to be fed to the catalytic reaction is reduced, and further generation of carbon dioxide is prevented.

公开(公告)号：JPH11236213A

公开(公告)日：1999-08-31

申请号：JP5573898

申请日：1998-02-23

Applicant: AGENCY IND SCIENCE TECHN ,  SHOWA CHEMICAL INDUSTRY CO LTD

Inventor： SHIBAZAKI YASUO ,  SUZUKI KENJI ,  NOGUCHI YASUHIKO

IPC: C01B39/52

Abstract: PROBLEM TO BE SOLVED: To synthesize hydrosodalite in a short time on an industrial scale by putting diatomaceous earth and an alumina compd. in a soln. of sodium hydroxide, mixing them and heating the mixture at a low temp. or hydrothermally treating it in an autoclave. SOLUTION: Diatomaceous earth as a source of silica and a halogen-free alumina compd. such as aluminum hydroxide or basic aluminum carbonate are put in a soln. of sodium hydroxide or sodium carbonate having 3-10N concn. They are mixed at a room temp. for 1-30 min so as to attain an SiO2 to Al2 O3 molar ratio of 1.6-2.2 and an Na2 O to SiO2 molar ratio of 2.2. The mixture is then heated at 80-100 deg.C under atmospheric pressure for 1-12 hr or it is hydrothermally treated at 100-150 deg.C for 30 min in an autoclave. The diatomaceous earth may be a diatomaceous earth product or low purity diatomaceous earth generally called diatomaceous mudstone besides a raw ore.

公开(公告)号：JPH11228257A

公开(公告)日：1999-08-24

申请号：JP4878198

申请日：1998-02-13

Applicant: AGENCY IND SCIENCE TECHN ,  TOYO DENKA KOGYO CO LTD ,  SHIBAZAKI YASUO

Inventor： SHIBAZAKI YASUO ,  YAMASHITA YOSHITAKA ,  HAMADA MORINORI ,  KAMORI MASANOBU ,  TAKENAKA HIDEO

IPC: B01D53/70 ,  B28B3/26 ,  C01B39/50 ,  C04B33/13 ,  C04B41/50 ,  C04B41/80 ,  C04B41/85

Abstract: PROBLEM TO BE SOLVED: To produce a readily producible formed product of hydrosodalite having high reactivity with hydrogen chloride gas without collapsing even when brought into contact with a combustion gas at high temperatures and high speeds and to provide a method for producing the formed product of the hydrosodalite. SOLUTION: This formed product of hydrosodalite is produced by adding water to a clay mineral having the plasticity as a raw material, forming the resultant mixture by a means such as compression, extrusion or granulation, then carrying out the drying and baking, providing a raw material formed product, adding caustic soda or sodium carbonate and water to the resultant raw material formed product and conducting heat treatment thereof. The method for producing the formed product of the hydrosodalite is provided. In this case, a mineral consisting essentially of silica or alumina such as a kaolin mineral or smectite is used as the clay mineral having the plasticity. The clay mineral is further mixed with a material selected from quartz sand, fly ash, water glass, a volcanic rock glass, diatomaceous earth, coal ash and aluminum hydroxide to afford the raw material.

公开(公告)号：JPH09156969A

公开(公告)日：1997-06-17

申请号：JP31519695

申请日：1995-12-04

Applicant: AGENCY IND SCIENCE TECHN ,  UEDA SEKKAI SEIZO KK

Inventor： SUZUKI KENJI ,  SHIBAZAKI YASUO ,  IMAI TSUTOMU ,  AITOU SHIGERU

IPC: B01D53/68 ,  C01F11/02 ,  C04B2/04 ,  C04B2/06

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a fine powdery slaked lime by which an apparatus for removing a solvent is not required and the equipment can be simplified to reduce production steps and cost. SOLUTION: Quick lime to be a raw material is finely pulverized to =2 hydroxyl groups in an amount of 1-10wt.% based on water is added and mixed therewith to prepare slaking water. Although a polyhydric alcohol such as ethylene glycol, diethylene glycol, propylene glycol or triethanolamine or a sugaralcohol such as D-glucitol is preferred as the organic solvent, the triethanolamine is most preferred. The slaking water is added to slake the finely pulverized quick lime. Thereby, the slaked lime having >=20(m /g) specific surface area can be produced.

公开(公告)号：JPH0891830A

公开(公告)日：1996-04-09

申请号：JP23125294

申请日：1994-09-27

Applicant: AGENCY IND SCIENCE TECHN ,  CERAMICS SUIKASO SEIKEI GIJUTS

Inventor： SHIBAZAKI YASUO ,  ODA KIICHI ,  SANO SABURO ,  MAEDA MASAKI ,  TAMURA MINORU ,  ICHIKAWA YUKARI ,  KOIZUMI KENICHI ,  FUKAKUSA HISAYUKI ,  TAKENAKA HIDEO

IPC: C01F7/02

Abstract: PURPOSE: To obtain high plasticity alumina particles useful as a material excellent in heat resistance, electric insulating property and mechanical strength and giving a high density compact by forming a specified compd. on the surfaces of α-alumina particles. CONSTITUTION: An aluminate compd. is formed on the surfaces of α-alumina particles, preferably hexagonal platy particles, especially preferably particles each having

公开(公告)号：JPH07331110A

公开(公告)日：1995-12-19

申请号：JP15178394

申请日：1994-06-10

Applicant: AGENCY IND SCIENCE TECHN ,  YOSHIDA KOGYO KK

Inventor： SHIBAZAKI YASUO ,  ODA KIICHI ,  SANO SABURO ,  MAEDA MASAKI ,  MATSUO YOJI

IPC: C09C1/40 ,  C01F7/02 ,  C09C3/06

Abstract: PURPOSE:To prepare a flaky alumina pigment which has good coatability and high-temp. stability and is useful as a pigment for coating materials and potteries by treating the surface of a flaky alumina pigment with a particular metal or metallic compd. CONSTITUTION:A flaky alumina pigment comprising a flaky alumina and a color compd. metal oxide reacted with and present on the surface of the flaky alumina. This flaky alumina pigment is prepd. by coating a flaky alumina with a metal or a metallic compd. capable of reacting with alumina to develop a color and calcining the coated flaky alumina at a high temp. Pref., the flaky glumina has a particle diameter of 0.1 to 20mum and an aspect ratio of 2 to 50. The color compd. metal oxide is a compd. comprising alumina and a metal oxide excluding alumina. The metal oxide is at least one member selected from oxides of Mg, Zn, Mn, Ni, Co, Ti, Fe, Cr, Cu, and V. The color metal oxide is pref. of a spinel crystalline structure.

公开(公告)号：JPH07309686A

公开(公告)日：1995-11-28

申请号：JP10363294

申请日：1994-05-18

Applicant: AGENCY IND SCIENCE TECHN ,  INAX CORP

Inventor： SHIBAZAKI YASUO ,  ODA KIICHI ,  SANO SABURO ,  MAEDA MASAKI ,  FUKUMIZU HIROSHI ,  MURAGUCHI YUKITO ,  NAKAMURA SHINGO

IPC: C04B33/34 ,  C04B41/50 ,  C04B41/86 ,  E04F13/14 ,  E04F15/08

Abstract: PURPOSE:To produce a tile having excellent antislipping property. CONSTITUTION:A glaze containing 60-90wt.% (in terms of oxide) iron oxide or a material to be produced iron oxide by firing and 40-10wt.% (in terms of oxide) vitreous material is deposited on the surface of a tile base and fired. By this method, since thin-plate like crystals 1 having micro steps caused by the growing of the C-plane of the hematite precipitate on the surface of the glaze 3, the antislipping property of the tile for a walker when the tile is set can be improved.

公开(公告)号：JPH07217008A

公开(公告)日：1995-08-15

申请号：JP2619594

申请日：1994-01-28

Applicant: AGENCY IND SCIENCE TECHN ,  CERAMICS SUIKASO SEIKEI GIJUTS

Inventor： SHIBAZAKI YASUO ,  KOSAKA MINEO ,  ICHIKAWA YUKARI ,  FUKUMIZU HIROSHI ,  KAMORI MASANOBU ,  NISHIOKA AKISUKE ,  TAMURA MINORU

IPC: E04B1/64 ,  C04B14/10 ,  C04B28/00 ,  C04B28/10

Abstract: PURPOSE:To appropriately adjust the humidity in a room and prevent dewing and molds and ticks from generating and secure a pleasant space by using kaolinite independently or mixing it with other curing materials. CONSTITUTION:Kaolinite is mixed with slaked lime and water is added thereto. The mixture is kneaded to obtain a slurry material. The slurry is applied on a plasterboard by use of a trowel or the like. Thereafter, it is cured to obtain a wall material. As a result, the moisture in a room is absorbed well to reduce the moisture in the room. When a room is in a dried condition, the moisture retained in the inside is gradually evaporated to keep the room to be in an appropriate humid condition.

公开(公告)号：JPH07206435A

公开(公告)日：1995-08-08

申请号：JP1567794

申请日：1994-01-17

Applicant: AGENCY IND SCIENCE TECHN ,  YOSHIDA KOGYO KK

Inventor： SHIBAZAKI YASUO ,  FUKUDA YUSHI

IPC: B24D3/00 ,  C01F7/44

Abstract: PURPOSE:To produce twin alumina particles suitable for use as an abrasive material, starting material for a porous ceramic sintered compact, a filler for a coating material, etc. CONSTITUTION:Aluminum hydroxide or alumina hydrate whose particle size has been regulated to a submicron order is hydrothermally treated as starting material with water or an aq. alkali soln. At this time, the ratio of the starting material to the water or soln. is regulated t.o 1-10 and the objective twin alumina particles are produced. Each of the particles consists of flat platy alumina crystals 1, 2, 3 grown in a penetrating and crossing state.

公开(公告)号：JPH06278034A

公开(公告)日：1994-10-04

申请号：JP7173893

申请日：1993-03-30

Applicant: AGENCY IND SCIENCE TECHN ,  YOSHIDA KOGYO KK

Inventor： SHIBAZAKI YASUO ,  ODA KIICHI ,  FUKUDA YUSHI ,  NAGAI YOSHITAKA

IPC: B24D3/00 ,  B24D3/28

Abstract: PURPOSE:To evenly distribute plate-shape particles so as to improve the sharpness of a grinding wheel by rotating a mixture of binder resin and plate-shape alumina particles at high speed, and orienting the plate-shape alumina particles by means of centrifugal force, thus molding the grinding wheel. CONSTITUTION:Fine plate-shape alumina (alpha-Al2O3) particles are obtained through a hydrothermal treatment and are mixed with a binder resin (binding agent) and this mixture is heated to melt the binder resin and the molten mixture is fed from a feeding portion. While the mixture is being fed, a lower mold is rotated relative to a upper mold and a base body is disposed between the upper mold the lower mold. The molten mixture fed from the feeding portion of the die body held in place is fed into a gap formed between the base body and the upper mold and is forced to collide with each other by a centrifugal force caused by rotation of the lower mold and the alumina particles in the molten mixture are oriented in the vertical direction by this collision. Cooling water is fed into the cooling portion of the lower mold and the oriented alumina particles are sequentially hardened by the binder resin to form an alumina grinding wheel.