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公开(公告)号：JPH01122903A
公开(公告)日：1989-05-16
申请号：JP27909587
申请日：1987-11-06
Applicant: TOSOH CORP
Inventor： SAITO HIROYUKI , MURAKAMI TSUGIO
Abstract: PURPOSE:To produce the above granular substance excellent in preservation quality for a long-period of time, high-temperature stability and solubility, by applying an aqueous solution of an alkaline metallic hydroxide to grains of calcium hypochlorite dihydrate and/or anhydride and drying the resultant grains while heating. CONSTITUTION:Columnar calcium hypochlorite dihydrate, obtained by adding one or more habit modifiers selected from carboxylic acids (salts) and carbohydrates and having the respective axial ratios (a), (b) and (c) of 0.5 =1.5 with >=5mu (c) axis is grown as a seed crystal to provide grains of calcium hypochlorite dihydrate and/or anhydride having 10-1,000mu (a) and (b) axes and 20-200mu (c) axis. An aqueous solution of an alkaline metallic hydroxide (e.g., NaOH) is several wt.%-50wt.% concentration is then sprayed on the resultant grains so as to provide 1:0.01-0.3 weight ratio of solid to liquid. The resultant grains are subsequently dried by heating so that the moisture content attains 3-20wt.%. Thereby the aimed granular substance of calcium hypochlorite having 0.01-0.30 atomic ratio (M/Ca) of the alkaline metal (M) in a double decomposition product layer of the calcium hypochlorite and alkaline metallic hydroxide to the Ca is obtained.
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公开(公告)号：JPS63130508A
公开(公告)日：1988-06-02
申请号：JP27296086
申请日：1986-11-18
Applicant: TOSOH CORP
Inventor： SAITO HIROYUKI , SAKUMA MASARU , MURAKAMI TSUGIO
Abstract: PURPOSE:To obtain the titled granular composition, containing a specific amount of calcium hypochlorite, rich in handleability and useful for sterilizing and disinfecting water, simply by grading and drying cylindrical molded articles which are ellipsoids having a specific shape and prepared by extrusion molding. CONSTITUTION:A calcium hypochlorite composition obtained by extruding a wet calcium hypochlorite composition containing >=40wt.% calcium hypochlo rite and 25-45wt.% moisture through a die having 0.3-5mm hole diameter to form cylindrical molded articles having 0.5-20mm length [1.5
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公开(公告)号：JP2013233523A
公开(公告)日：2013-11-21
申请号：JP2012108831
申请日：2012-05-10
Applicant: Tosoh Corp , 東ソー株式会社 , Tohoku Tosoh Kagaku Kk , 東北東ソー化学株式会社
Inventor： IKEDA KAZUHIKO , ITO TARO , KAKIMOTO SHINJI , MURAKAMI TSUGIO
Abstract: PROBLEM TO BE SOLVED: To provide an apparatus capable of preventing a pump failure and pipe clogging due to scale precipitated/deposited in a solution tank and suction of a water-insoluble solid content included in a water soluble solid chemical agent, capable of reducing cleaning frequency in the solution tank, and stably performing dissolution of the solid chemical agent and sterilization treatment.SOLUTION: In a sterilization treatment apparatus including, as components, a chemical chamber part filled with a water soluble solid chemical agent, a perforated plate at a chemical chamber bottom part, a solution tank of the chemical agent, a level adjustment device for the solution tank, an injection pump for the solution, and an ejector injecting the solution, the pump injecting the solution and the ejector injecting the solution are provided together, and the ejector is installed on a discharge pipe of the pump.
Abstract translation: 要解决的问题：提供一种能够防止由于在溶液罐中析出/沉积的水垢引起的泵故障和管堵塞以及能够减少清洁的水溶性固体化学试剂中包含的水不溶性固体含量的抽吸装置 频率在溶液罐中，并且稳定地进行固体化学药剂的溶解和杀菌处理。解决方案：在灭菌处理装置中，作为组分，包括填充有水溶性固体化学试剂的化学室部分，化学品的多孔板 化学试剂溶液罐，溶液罐的液位调节装置，溶液的注射泵，喷射溶液的喷射器，喷射溶液的泵和喷射溶液的喷射器一起设置， 并且喷射器安装在泵的排放管上。
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公开(公告)号：JPH07216474A
公开(公告)日：1995-08-15
申请号：JP973594
申请日：1994-01-31
Applicant: TOSOH CORP
Inventor： MIYAZAKI HIROMI , MURAKAMI TSUGIO , KUMOI SADAKATSU , TANAKA YOSHIO
IPC: C22B34/32
Abstract: PURPOSE:To produce high purity metallic chromium from chromium oxide by treating a mixture under a hydrogen-containing atmosphere, at specific temp. under reduced pressure. CONSTITUTION:A mixture of powder of chromium oxide, such as Cr2O3 and Cr(OH)3, and carbon compound, such as graphite and chromium carbide, is formed. This mixture is treated under an atmosphere containing gaseous hydrogen, at >=1300 deg.C under reduced pressure, or, proceed under an atmosphere free from gaseous hydrogen at 1200-1600 deg.C under 0.13 to 26.67KPa(1-200mmHg) pressure in the initial stage of reaction, and, gaseous hydrogen is introduced into the course of the reaction and treatment is done at >=1300 deg.C under reduced pressure. By this method, high purity metallic chromium can be obtained by a single reducing operation.
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公开(公告)号：JPH054814A
公开(公告)日：1993-01-14
申请号：JP32241391
申请日：1991-11-12
Applicant: TOSOH CORP
Inventor： OKAJIMA KENGO , WAKAMATSU HIROYUKI , KUMOI SADAKATSU , MURAKAMI TSUGIO
Abstract: PURPOSE:To promote the decomposition of a chlorale by supplying an aqueous solution of an alkali chloride incorporated with hydrochloric acid to the lower part of a decomposition tank under specific condition and lifting the solution in the tank. CONSTITUTION:Hydrochloric acid is added to an aqueous solution of an alkali chloride having a saline water concentration of 150-300g/l and to be used as a raw material for the electrolysis of an aqueous solution of alkali chloride by cation exchange process. The amount of the hydrochloric acid is 10-50mol per 1mol of the chlorate in the saline water. The solution is supplied to the lower part of a decomposition tank having an inner diameter of 0.03-3m and a liquid depth of 0.5-20m, maintained under a pressure of
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Patent Agency Ranking
公开(公告)号：JPH04338117A
公开(公告)日：1992-11-25
申请号：JP13708091
申请日：1991-05-14
Applicant: TOSOH CORP
Inventor： EGASHIRA HIDETAKA , MURAKAMI TSUGIO
IPC: C01G45/06
Abstract: PURPOSE:To produce an aq. manganese bromide soln. by allowing a manganese source to react with hydrogen bromide without bumping, splashing and violent generation of heat. CONSTITUTION:Metallic manganese and/or a bivalent basic manganese compd. are mixed with an aq. manganese bromide soln., and hydrogen bromide is added to the mixture to produce an aq. manganese bromide soln. The atomic ratio of Mn to Br in the mixture is controlled to 0.52-1.00, the manganese bromide concn. is kept at 20-60wt.% throughout the reaction, and the pH of the liq. reactant is adjusted to 0-4 when the reaction is finished.
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公开(公告)号：JPH04270113A
公开(公告)日：1992-09-25
申请号：JP5012091
申请日：1991-02-25
Applicant: TOSOH CORP
Inventor： SAITO HIROYUKI , KUNIYOSHI MINORU , MIYAZAKI HIROMI , MURAKAMI TSUGIO
IPC: C01D7/42
Abstract: PURPOSE:To improve integrity sticking properties by brining a wet sodium bicarbonate composition into contact with hot air for a specific constant-drying period at a temperature of sodium bicarbonate and drying. CONSTITUTION:Slurry of sodium bicarbonate is separated from liquid by a centrifugal separator to give the wet cake, which is washed with water and dehydrated to produce a wet sodium bicarbonate composition having 2-15wt.% water content. Then the wet sodium bicarbonate composition is brought into contact with hot air at 20-60 deg.C temperature of sodium bicarbonate during a constant-drying period for 2-20 minutes in a dryer such as tunnel dryer. After the constant-drying period is over, the still wet sodium bicarbonate composition is successively brought into contact with hot air and dried, and at a point of time before the temperature of sodium bicarbonate reaches 70 deg.C, sodium bicarbonate is taken out from a drying zone. Further, after the drying, sodium bicarbonate is brought into contact with air at a temperature lower than that of sodium bicarbonate to give sodium bicarbonate having improved sticking properties.
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公开(公告)号：JPH0456820B2
公开(公告)日：1992-09-09
申请号：JP23149383
申请日：1983-12-09
Applicant: TOSOH CORP
Inventor： MURAKAMI TSUGIO , KAWAMOTO TAIZO
IPC: C07C209/84 , C07C67/00 , C07C209/00 , C07D295/00
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公开(公告)号：JPH04170315A
公开(公告)日：1992-06-18
申请号：JP29370490
申请日：1990-11-01
Applicant: TOSOH CORP
Inventor： IGAWA KAZUNARI , MARUTANI MASAKAZU , MURAKAMI TSUGIO
Abstract: PURPOSE:To obtain sodium bicarbonate which hardly solidifies by incorporating hydrophobia silica by a specified proportion to suppress water solubility and moisture absorptivity of sodium bicarbonate. CONSTITUTION:The water-insoluble sodium bicarbonate contains 0.1-10wt.% hydrophobia silica. This water-insoluble sodium bicarbonate is produced by mixing hydrophobia silica and sodium bicarbonate, or by dispersing hydrophobia silica in an org. solvent, mixing sodium bicarbonate with the dispersion, and vaporizing the org. solnvent. By using the org. solvent, the hydrophobic silica can easily and uniformly be dispersed in sodium bicarbonate, and moreover, a little amt. of hydrophobic silica gives the effect of making the sodium bicarbonate water-insoluble. As for the org. solvent, ethanol is practically preferable since it has no toxicity.
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公开(公告)号：JPH0465317A
公开(公告)日：1992-03-02
申请号：JP15764290
申请日：1990-06-18
Applicant: TOSOH CORP
Inventor： OKAJIMA KENGO , KUMOI SADAKATSU , MURAKAMI TSUGIO
IPC: C01D3/14
Abstract: PURPOSE:To reduce the requirement of hydrochloric acid in the process of purifying the alkali chloride aq. soln. to be used for the electrolysis of alkali chloride by cation exchange membrane method, by aerating the soln. under specified conditions. CONSTITUTION:Hydrochloric acid is added to the alkali chloride aq. soln. (salt water) to be used for the electrolysis, and the solution is aerated under conditions of 30Nm /(m .time) gas flow and >=2vol% gas holdup. Decomposition of chlorate in the salt water is accelerated by this aeration, and thereby, the requirement of hydrochloric acid can be reduced. Consequently, no alkali nor neutralization process to neutralize excess hydrochloric acid is required. Moreover, since the decomposition of chlorate is smoothly effected, the decomposition device can be made simple and small.
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