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

IPC: C11D7/18 ,  C01B15/10 ,  C11D3/395 ,  C11D7/54

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&Japio

Abstract 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。

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.

公开(公告)号：JPS5767007A

公开(公告)日：1982-04-23

申请号：JP14262280

申请日：1980-10-13

Applicant: Kao Corp

Inventor： YAGI KOUICHI ,  TAKEDA TSUNESHI ,  TOUWAKI MICHIO ,  NAKAGAWA YUUNOSUKE

IPC: C01B15/10

Abstract: PURPOSE: To obtain a product with superior solubility by reacting an aqueous hydrogen peroxide soln. with sodium carbonate in the presence of a specified amount of a silicate and an Mg salt, mixing the resulting caky sodium percarbonate with an Mg salt, etc., and granulating the mixture by a pressurizing method.
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 in an amount of 0.14W2.8g as Si to 1kg produced sodium percarbonate and an Mg salt such as magnesium sulfate in an amount of 0.024W0.72g as Mg. Produced sodium percarbonate is separated, and 100pts.wt. separated cake having 75W92% solid content is mixed with 0.05W 15pts.wt. Mg salt such as magnesium chloride and/or ethylenediaminetetraacetate. By granulating the mixture by tableting or other pressurizing method, the titled sodium percarbonate is obtd.
COPYRIGHT: (C)1982,JPO&Japio

Abstract translation: 目的：通过使过氧化氢水溶液反应获得具有优异溶解性的产品。 在规定量的硅酸盐和Mg盐的存在下，用碳酸钠混合所得到的碳酸钙过碳酸钠与镁盐等，并通过加压方法造粒混合物。 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的存在下反应，其量为0.14-2.8g，Si至1kg，产生过碳酸钠，Mg盐如硫酸镁，其量为 0.024-0.72g Mg。 生产的过碳酸钠分离，100pts.wt。 具有75-92％固体含量的分离的滤饼与0.05-15pts.wt。 镁盐如氯化镁和/或乙二胺四乙酸盐。 通过压片或其他加压方法制粒混合物，称为过碳酸钠。