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公开(公告)号：JPS6241717A
公开(公告)日：1987-02-23
申请号：JP15386285
申请日：1985-07-12
Applicant: KAO CORP
Inventor： TAKEDA TSUNESHI , MONNO YASUO , ITO YUJI , NAKAYAMA KAZUHIKO , HAISHI TOMOYUKI
Abstract: PURPOSE:To obtain cubic plate magnetic powder having a uniform particle diameter ratio, by incorporating a ferric salt with tartaric acid and an alkali compound at a specific molar ratio, heat-treating the resultant aqueous slurry and reducing the resultant plate hematite in a hydrogen gas stream. CONSTITUTION:An aqueous slurry, consisting of three components of a ferric salt, tartaric acid (salt) and an alkali compound at >=8.2pH and satisfying conditions expressed by the formula is prepared. In the formula, r is the molar ratio of the tartaric acid (salt) to iron ions. The resultant slurry is then heated to >=120 deg.C to give plate hematite, which is further reduced in a hydrogen gas steam and, as desired, reoxidized and treated with a cobalt salt. The magnetic powder obtained by the method has 0.01-1mum particle diameter of the median value, 0.67-1.50 particle diameter ratio at the first quartile point and the third quartile point and 0.5-2.0 particle diameter ratio at the 1/10 fraction point to 9/10 fraction point in a cumulative distribution curve of plate surface area. The plate form ratio is >=2, and the powder has improved magnetic characteristics as a magnetic recording medium.
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公开(公告)号：JPS6018550A
公开(公告)日：1985-01-30
申请号：JP12638983
申请日：1983-07-12
Applicant: KAO CORP
Inventor： WAKASA MASANOBU , TAKEDA TSUNESHI
Abstract: PURPOSE:To obtain a pigment having excellent coloring power and free from the problems such as carcinogenicity and miscibility with vehicles, etc., by using an ion-exchanging clay powder as the base, immersing the clay in an aqueous solution of a polyvalent metallic salt to effect the ion exchange, contacting with a liquid organic compound, and heating at a specific temperature. CONSTITUTION:The powder of an ion-exchanging clay (preferably having a cation exchange capacity of 80-500mg-eq/100g of clay, and having particle diameter of 0.2-500mu) is immersed in an aqueous solution of a polyvalent metallic salt (e.g. sulfate, chloride, etc. of Fe, Cr, V, etc. preferably having a concentration of 0.01-2mol/1) to effect the ion exchange reaction. The product is made to contact with a liquid organic compound (preferably a compound having a melting point of =20 deg.C, e.g. n-heptane). The treated clay powder is heated at 350-700 deg.C for e.g. 10min-3hr in a muffle furnace to obtain the objective pigment.
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公开(公告)号：JPS63364B2
公开(公告)日：1988-01-06
申请号：JP14262280
申请日：1980-10-13
Applicant: KAO CORP
Inventor： YAGI KOICHI , TAKEDA TSUNESHI , TOWAKI MICHIO , NAKAGAWA JUNOSUKE
IPC: C01B15/10
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公开(公告)号：JPS62132724A
公开(公告)日：1987-06-16
申请号：JP27469385
申请日：1985-12-06
Applicant: KAO CORP
Inventor： HAISHI TOMOYUKI , KOGA MASAAKI , TAKEDA TSUNESHI
Abstract: PURPOSE:To obtain the titled inexpensive compound having improved oil absorbing ability and ion exchange ability in high yield, by adding an aqueous solution of an alkali metallic salt of silicic acid to an aqueous solution of an alkali metallic salt of aluminic acid at a specific temperature while stirring vigorously. CONSTITUTION:(B) An aqueous solution of an alkali metallic salt of silicic acid having a molar ratio of SiO2/Na2O of 1.0-4.0 and H2O/Na2O of 12-200 is added to (A) an aqueous solution of an alkali metallic salt of aluminic acid such as an aqueous solution of low alkali sodium aluminate, etc., having a molar ratio of Na2O/Al2O3 of 1.1-1.7 and H2O/Na2O of 6.5-500 at 15-60 deg.C while stirring vigorously. Then the prepared white precipitate slurry is heat- treated at 70-100 deg.C and kept for >=10min to give amorphous aluminosilicate having >=260ml/100g oil absorption amount and >=100mg CaCO3/dry 1g ion exchange ability.
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公开(公告)号：JPS5992911A
公开(公告)日：1984-05-29
申请号：JP20335382
申请日：1982-11-19
Applicant: KAO CORP
Inventor： HAISHI TOMOYUKI , TAKEDA TSUNESHI , WAKASA MASANOBU , SASA YOSHIMASA , FUJITA TADAAKI , MAEDA TOSHIJI
Abstract: PURPOSE:To prepare a crystalline aluminosilicate having excellent fluidity, etc., and suitable as a builder of detergent, etc., by mixing a concentrated aqueous solution of sodium aluminate with an aqueous solution of sodium silicate at a specific ratio, and subjecting the mixture to hydrothermal crystallization. CONSTITUTION:A concentrated aqueous solution of sodium aluminate having a concentration of 30-70wt% is mixed with a concentrated aqueous solution of sodium silicate having a concentration of 35-50wt% to obtain a mixed solution having a composition of SiO2/Al2O3>=2, Na2O/Al2O3>2, (SiO2+Na2O)/Al2O3
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Patent Agency Ranking
公开(公告)号：JPS5767006A
公开(公告)日：1982-04-23
申请号：JP14143080
申请日：1980-10-09
Applicant: Kao Corp
Inventor： YAGI KOUICHI , TAKEDA TSUNESHI , TOUWAKI MICHIO , NAKAGAWA YUUNOSUKE
Abstract: PURPOSE: To obtain a granular product with low hygroscopicity by reacting an aqueous hydrogen peroxide soln. with sodium carbonate in the presence of a specified amount of a silicate and an Mg salt and granulating the resulting caky sodium percarbonate with an aqueous hydrogen peroxide soln.
CONSTITUTION: When an aqueous hydrogen peroxide soln. is reacted with sodium carbonate to manufacture sodium percarbonate, they are reacted in the presence of a silicate such as sodium metasilicate or sodium orthosilicate in an amount of 0.14W 2.8g as Si to 1kg produced sodium percarbonate and an Mg salt such as magnesium sulfate or magnesium chloride in an amount of 0.024W0.72g as Mg. Produced sodium percarbonte is separated, and to 75W92pts.wt. as pure component of the separated caky sodium percarbonate is added 25W8pts.wt. aqueous hydrogen peroxide soln. having 1.5W10wt% concn. By granulating the mixture of tableting or other pressurizing method, the titled sodium percarbonate is obtd.
COPYRIGHT: (C)1982,JPO&JapioAbstract translation: 目的：通过使过氧化氢水溶液反应获得具有低吸湿性的颗粒状产品。 与碳酸钠在规定量的硅酸盐和Mg盐的存在下，并用过氧化氢水溶液对所得的过碳酸钾进行造粒。 构成：当过氧化氢水溶液 与碳酸钠反应以制造过碳酸钠，它们在硅酸钠如硅酸钠或原硅酸钠存在下反应，其量为0.14-2.8g，Si至1kg生产过碳酸钠和Mg盐如硫酸镁或 氯化镁的含量为0.024-0.72g。 生产的碳酸氢钠被分离，并且为75-92pts.wt。 作为分离的碳酸钠过滤器的纯组分加入25-8pts.wt。 过氧化氢水溶液。 具有1.5-10wt％的浓度 通过制粒压片或其他加压方法的混合物，称为过碳酸钠。
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公开(公告)号：JPH064484B2
公开(公告)日：1994-01-19
申请号：JP27469385
申请日：1985-12-06
Applicant: KAO CORP
Inventor： HAISHI TOMOYUKI , KOGA MASAAKI , TAKEDA TSUNESHI
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公开(公告)号：JPS61179264A
公开(公告)日：1986-08-11
申请号：JP2025585
申请日：1985-02-05
Applicant: KAO CORP
Inventor： WAKASA MASANOBU , FUJII SHIGEO , TAKEDA TSUNESHI
Abstract: PURPOSE:To obtain an alumina carrier having such excellent properties that it can adsorb an org. dye to allow the dye to be enclosed therein, its pores can be sealed and it absorbs less visible light, by treating an aq. suspension of porous intermediate alumina with an acid and drying or firing it. CONSTITUTION:An aq. dispersion of porous intermediate alumina is treated with an acid at a pH of 2-6.5 under an equilibrium condition and the treated alumina is dried and/or fired to obtain the desired alumina carrier which is porous alumina which has a specific surface area of 10m /g or above and a particle size of 0.03-100mu, whose 2.4wt% aq. dispersion has a pH of 3.0-6.5 and at least part of which is converted into hydrated alumina when treated with water at 70-250 deg.C. Alternatively, the alumina carrier can be prepd. in such a manner (i) that hydrated alumina or porous intermediate alumina is mixed with an ammonium salt powder or is brought into contact with an ammonium salt soln. and the mixture is fired, or (ii) that hydrated alumina or porous intermediate alumina is fired in a hydrogen chloride atmosphere.
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公开(公告)号：JPS5926917A
公开(公告)日：1984-02-13
申请号：JP13709682
申请日：1982-08-06
Applicant: Kao Corp
Inventor： HAISHI TOMOYUKI , TAKEDA TSUNESHI , WAKASA MASANOBU , SASA YOSHIMASA , FUJITA TADAAKI , MAEDA TOSHIJI
Abstract: PURPOSE: To enable the preparation of crystalline aluminosilicate having excellent characteristics, by reacting an aqueous solution of sodium aluminate with sodium silicate keeping the concentration of the solution at a specific high level.
CONSTITUTION: A supersaturated aqueous solution of sodium aluminate having a concentration of 30W70wt% is charged into a strong stirring mixer while keeping the temperature in the mixer at 50W90°C. A supersaturated aqueous solution of sodium silicate having a concentration of 35W50wt% is charged to the mixer in 15W60min under vigorous agitation, and the agitation is continued after the addition for 10W60min. The composition of the mixture is adjusted to the molar ratios (Na
2 O:Al
2 O
3 :SiO
2 :H
2 O) of (1.5W2.0):1:(2.0W2.5):(15W30). After the completion of gelation, the mixture is heated at 80W100°C for 20W60min to obtain the slurry of crystalline aluminosilicate. The slurry is dried and pulverized to afford crystalline aluminosilicate having excellent characteristics as the builder for detergent.
COPYRIGHT: (C)1984,JPO&JapioAbstract translation: 目的：为了制备具有优异特性的结晶硅铝酸盐，通过使铝酸钠水溶液与硅酸钠反应，使溶液的浓度保持在特定的高水平。 构成：将浓度为30-70重量％的过饱和铝酸钠水溶液装入强搅拌混合器中，同时将混合器中的温度保持在50-90℃。 将浓度为35-50重量％的过饱和硅酸钠水溶液在剧烈搅拌下在15-60分钟内加入混合器中，加入10-60分钟后继续搅拌。 将混合物的组成调节为（1.5-2.0）：1：（2.0-2.5）：（15-30）的摩尔比（Na 2 O：Al 2 O 3 :SiO 2 :H 2 O）。 凝胶化完成后，将混合物在80-100℃加热20-60分钟，得到结晶硅铝酸盐浆料。 将浆料干燥并粉碎，得到具有优异特性的结晶硅铝酸盐作为洗涤剂助洗剂。
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公开(公告)号：JPS589805A
公开(公告)日：1983-01-20
申请号：JP10366981
申请日：1981-07-02
Applicant: KAO CORP
Inventor： TOUWAKI MICHIO , NAKATANI YOSHITAKA , TAMURA JIYUNICHI , TAKEDA TSUNESHI
IPC: C01B15/10
Abstract: PURPOSE:To obtain the titled product having improved mechanical strength and high dissolving rate in water, by reacting and crystallizing Na2CO3 with H2O2 in the presence of a specific stabilizer, mixing a carbonate, etc. with the resultant cake containing a suitable mother liquor, and granulating the resultant mixture. CONSTITUTION:Na2CO3 is reacted with H2O2 in the presence of a silicate, Mg salt an alkali metallic salt or triethanolamine salt of ethylenediaminetetraacetic acid (EDTA), and the reaction product is crystallized. A cake consisting of 75- 92pts.wt. Na2CO3 and 25-8pts.wt. mother liquor is separated, and a carbonate or polysaccharide or a derivative thereof is mixed therewith, and the resultant mixture is granulated. The three components of the stabilizers are essential, and the absence of the Mg salt deteriorates the moisture resistance. The absence of the silicate deteriorates the thermal stability and mechanical strength. The salt of EDTA interacts with the salts to further improve the product stability. The absence of the salt of the EDTA does not provide a sufficient resistance to heat and moisture. The granulating additive is effective only when added to the cake.
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