WO1996006801A1 - Percarbonate de soude stable et tres soluble - Google Patents

Percarbonate de soude stable et tres soluble Download PDF

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Publication number
WO1996006801A1
WO1996006801A1 PCT/JP1995/001726 JP9501726W WO9606801A1 WO 1996006801 A1 WO1996006801 A1 WO 1996006801A1 JP 9501726 W JP9501726 W JP 9501726W WO 9606801 A1 WO9606801 A1 WO 9606801A1
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WO
WIPO (PCT)
Prior art keywords
sodium
sodium percarbonate
acid
group
salt
Prior art date
Application number
PCT/JP1995/001726
Other languages
English (en)
Japanese (ja)
Inventor
Kanji Sato
Shigeki Yoneyama
Yuichiro Yoshinaga
Original Assignee
Tokai Denka Kogyo Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tokai Denka Kogyo Kabushiki Kaisha filed Critical Tokai Denka Kogyo Kabushiki Kaisha
Priority to JP50861996A priority Critical patent/JP3764479B2/ja
Priority to AU33543/95A priority patent/AU3354395A/en
Publication of WO1996006801A1 publication Critical patent/WO1996006801A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B15/00—Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides
    • C01B15/055—Peroxyhydrates; Peroxyacids or salts thereof
    • C01B15/10—Peroxyhydrates; Peroxyacids or salts thereof containing carbon
    • C01B15/106—Stabilisation of the solid compounds, subsequent to the preparation or to the crystallisation, by additives or by coating

Definitions

  • the present invention relates to sodium percarbonate which is stable and excellent in solubility, and particularly to sodium percarbonate which is stable and excellent in solubility and suitable for use as a bleaching agent in detergents and the like.
  • Sodium percarbonate is a solid particulate material, and is widely used as a bleaching agent, a detergent, a bactericide, and the like.
  • Sodium percarbonate as a bleaching agent has excellent solubility at low temperatures, has a high bleaching effect, and is a stable compound under normal storage conditions.
  • sodium percarbonate has drawbacks such as being unstable in storage under high humidity conditions and in combination with detergents.
  • household detergents products containing a fixed amount of sodium percarbonate as a bleaching agent are particularly desirable.
  • zeolite used as a builder in combination with detergents loses its stability when it comes in contact with a small amount of water contained in detergents, and may not only lose the bleaching effect but also deactivate the effectiveness of the detergent. There is.
  • Various proposals have been made to solve these problems.
  • Japanese Patent Publication No. Sho 63-3-56167 a method of coating with a magnesium salt of magnesium sulfonate or a magnesium salt of a sulfate ester is used.
  • a method of further coating a magnesium salt with an alkali or alkaline earth metal sulfate or hydrochloride is disclosed in Japanese Patent Application Laid-Open No. 60-118,606, which discloses boric acid or a partially neutralized borate.
  • a method of coating with a water repellent and Japanese Patent Publication No. 59-1940000 discloses a method of coating with a borate and a magnesium compound.
  • Each of these methods avoids contact with detergent components by coating with a specific chemical.
  • the present inventors have previously disclosed in JP-A-3-40909, sodium percarbonate, at least one compound selected from the group consisting of monocarboxylic acids having 4 or more carbon atoms, dicarboxylic acids and salts thereof. And a composition comprising at least one compound selected from the group consisting of alkali metal and alkaline earth metal sulfates, nitrates and silicates.
  • This has a drawback that the stability at the time of mixing the detergent is insufficient, but shows a certain effect. The dissolution rate is low, and the solubility is practically insufficient when used in a detergent or the like.
  • sodium percarbonate contains (A) at least one compound selected from the group consisting of sulfates and silicates, and (B) carbon atoms of 4 or more. At least one compound selected from the group consisting of mono- and dicarboxylates; and (C) a group selected from the group consisting of sulfated oil salts, sodium olefin sulfonates, monols and di-alkyl sulfosuccinate salts.
  • the present inventors have found that by coating at least one compound, a remarkably superior effect can be obtained as compared with the prior art, and have led to the present invention.
  • the present invention provides sodium percarbonate comprising: (A) at least one compound selected from the group consisting of sulfates and silicates; and (B) a group consisting of mono- and di-fluorocarbonates having 4 or more carbon atoms. At least one compound selected from the group consisting of (C) a sulfated oil salt, a haloolefin sulfonate, a mono- and dialkyl sulfosuccinate salt,
  • the present invention provides sodium percarbonate which is significantly improved in stability at the time of blending a detergent as compared with conventional sodium percarbonate, and has excellent solubility. Preferred embodiments of the invention
  • the salt of the component (A) or constituting the silicate is preferably an alkali metal salt or an alkaline earth metal salt.
  • sulfates include, for example, sodium sulfate, potassium sulfate, and magnesium sulfate.
  • silicates include, for example, sodium silicate (No. 1, 2, and 3), sodium mesosilicate, sodium orthosilicate, and the like. And potassium silicate. Particularly, sodium sulfate is preferable.
  • the carboxylic acid constituting the mono- or di-carboxylate having 4 or more carbon atoms of the component (B) includes, for example, butyric acid, isobutyric acid, valeric acid, cabronic acid, cabrylic acid, acetic acid, and lauric acid.
  • Acids myristic acid, palmitic acid, stearic acid, isostearic acid, araquinic acid, behenic acid, lignoceric acid, cyclohexancarboxylic acid, crotonic acid, 2-methylacrylic acid, 2-ethylhexylic acid, and solvin Acid, 2,4-pentanedic acid, zomarinic acid, oleic acid, linolenic acid, linoleic acid, ricinoleic acid, gadrenic acid, eric acid, seracoleic acid, benzoic acid, diphenylacetic acid, toluic acid, p-t Butylbenzoic acid, phenylacetic acid, benzoylbenzoic acid, ethylbenzoic acid, 2,3,5-trimethylbenzoic acid, hina Toeic acid, / S-naphthoic acid, 2-methylnaphthoic acid, sebacic acid, pentade
  • a saturated or unsaturated lipoprotective monocarboxylic acid having 8 to 22 carbon atoms is preferred, and a saturated or unsaturated carboxylic acid having 8 to 18 carbon atoms is particularly preferred.
  • the sulfated oil salt of the component (C) includes, for example, sulfated olive oil, Sulfation using animal and vegetable fats such as sulfated castor oil, sulfated soybean oil, sulfated peanut oil, sulfated cottonseed oil, sulfated rapeseed oil, sulfated rice bran oil, sulfated whale oil, sulfated fish oil and sulfated tallow, etc.
  • sulfated olive oil such as sulfated castor oil, sulfated soybean oil, sulfated peanut oil, sulfated cottonseed oil, sulfated rapeseed oil, sulfated rice bran oil, sulfated whale oil, sulfated fish oil and sulfated tallow, etc.
  • sulfated olive oil such as sulfated castor oil, sulfated soybean oil, sulfated peanut oil,
  • fins sulfonate C 6 - 3 0 has those obtained by scan sulfonated non Orefuin, this is normally the form of a mixture of alkenyl sulfonate and hydroxyaldehyde alkanesulfonate ing.
  • sodium salt, potassium salt, magnesium salt of ⁇ -dodecene sulfonate, ⁇ -hexadecene sulfonate, ⁇ -octadecene sulfonate and ⁇ -eicosene sulfonate There are calcium salts.
  • Mono - and as preferably di-alkyl sulfosuccinate ester salts (, - there is, and di-alkyl sulfosuccinate ester le salts and more preferably C 4 - - 2 0 primary or mono secondary alcohols., 8
  • mono- and dialkylsulfosuccinates of primary or secondary alcohols for example, when the alkyl group is methyl, ethyl, propyl, butyl, ybutyl, amiyl, isoamyl, hexyl, cyclohexyl, octyl, Isooctyl, 2-ethylhexyl, nonyl, decyl, lauryl, millisteel, palmityl, stearyl, eicosyl, sodium and potassium salts of dialkylsulfosuccinates which are behenyl groups are salts of sodium, potassium, magnesium and calcium. is there.
  • the order of coating is not particularly limited, but a method of coating the compound of the group (A) and then mixing and coating the compounds of the groups (B) and (C) is preferable.
  • the mixing ratio of the compound of group (B) and the compound of group (C) is the same when the total amount of the compound of group (B) and the compound of group (C) is the same.
  • the ratio of the compound of the group (B) in the mixture of the compounds of the groups (B) and (C) is preferably from 10 to 90% by weight, more preferably from 30 to 70% by weight.
  • the coating amount of the compound (A) is preferably 1 to 30% by weight, more preferably 5 to 20% by weight.
  • the coating amounts of the compounds of the groups (B) and (C) are each preferably 0.1 to 10% by weight, more preferably 0.5 to 5% by weight.
  • the coating agent of the present invention is preferably provided for coating as a solution with water or an organic solvent. Particularly, an aqueous solution is preferable.
  • the coating method in this case is not particularly limited, but a method capable of adhering a coating agent and rapidly removing the solvent is preferable.
  • a specific example of an apparatus that can be used for such coating is a seminaroating apparatus. , Rolling coating equipment, fluid coating equipment, fluid rolling coating equipment, etc. Particularly preferred is a flow coating device.
  • the coating agent of the present invention can be coated in a slurry form.
  • the compound (A) is made into a slurry, and the compounds (B) and (C) are coated in the form of a solution. It is also possible. It is also possible to coat the (B) group and / or (C) group compound as a solution and add the (A) group compound to this solution in powder form as a slurry.
  • the finer the component particles In coating with a slurry, the finer the component particles, the more effective.
  • the preferred particle size is less than 250; /.
  • any apparatus that can reduce the crushing of sodium percarbonate particles and can coat uniformly can be used.
  • the sodium percarbonate to be coated in the present invention is not particularly limited, and any of as-crystal or granulated by granulation can be used. It is preferably in the form of granules.
  • the size of the granules is preferably from 0.1 to 2 mm, particularly preferably from about 0.5 to 1 mm.
  • sodium percarbonate in advance such as sodium carbonate, sodium bicarbonate, sodium gayate, a stabilizer such as chelating agent, and CMC, sodium polyacrylate, etc.
  • a binder and the like can be added.
  • the present invention will be described more specifically with reference to examples and comparative examples, but the present invention is not limited to the examples. In addition, all percentages are weights in terms of pure content, including water of crystallization.
  • the obtained granules (400 g) were flow-sprayed While blowing hot air at 105 to 110 ° C with a single-stage device, the substances shown in (A) Compounds in Table 1 were formed into an aqueous solution of 10 to 25% and 5 (TC aqueous solution). A predetermined amount was sprayed little by little.
  • the compounds of the groups (B) and (C) in Table 1 were mixed to form an aqueous solution of 10 to 20 ° C. and 50′C, and a predetermined amount was sprayed little by little to permeate and coat. After spraying, it was dried for 5 minutes.
  • the available oxygen concentration of the obtained sodium percarbonate granules was 11 to 13%.
  • the dissolution rate (1 minute) was measured in a 1-liter beaker equipped with a 6 cm stirring blade and a current measurement electrode. C 1 liter of pure water was added, the stirring blade was rotated at 200 rpm, a DC voltage of 2 V was applied, 1 g of the obtained sodium percarbonate granules was charged, and the current value was measured. The dissolution rate per minute was calculated. Table 1 shows the results.
  • Dissolution rate X100% Current value at the time of completion of dissolution Measurement of available oxygen was performed by sodium redoxotium sulfate redox titration method. For comparison, sodium percarbonate granules before coating, those coated with the (A) group, the (B) group and the (C) group compounds alone, and the (A) and (B) group compounds were coated. Table 2 shows the results as comparative examples. Table 1
  • Predetermined amounts of the (B) group compound and the (C) group compound were measured, the (B) group compound and the (C) group compound were mixed, and a 20% aqueous solution was prepared using the mixture.
  • a predetermined amount of the powdery (A) group compound having a particle diameter of 150 m or less was added to the aqueous solution, and the mixture was mixed well to prepare a slurry.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)

Abstract

Percarbonate de soude dont la stabilité et la solubilité peuvent être améliorées en l'enrobant (A) avec au moins un composé choisi parmi des sulfates et des silicates et (B) avec un composé choisi parmi des sels d'acides mono et dicarboxyliques présentant 4 atomes de carbone ou plus, et (C) avec un composé choisi parmi des sels d'huiles sulfatées et d'acides α-oléfinsulfoniques, et des mono et dialkylsulfosuccinates.
PCT/JP1995/001726 1994-08-30 1995-08-30 Percarbonate de soude stable et tres soluble WO1996006801A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP50861996A JP3764479B2 (ja) 1994-08-30 1995-08-30 安定で溶解性に優れた過炭酸ナトリウム
AU33543/95A AU3354395A (en) 1994-08-30 1995-08-30 Sodium percarbonate that is stable and excellent in solubility

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP24048194 1994-08-30
JP6/240481 1994-08-30

Publications (1)

Publication Number Publication Date
WO1996006801A1 true WO1996006801A1 (fr) 1996-03-07

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PCT/JP1995/001726 WO1996006801A1 (fr) 1994-08-30 1995-08-30 Percarbonate de soude stable et tres soluble

Country Status (3)

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JP (1) JP3764479B2 (fr)
AU (1) AU3354395A (fr)
WO (1) WO1996006801A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19547055A1 (de) * 1995-12-18 1997-06-19 Solvay Interox Gmbh Durch Beschichtung stabilisierte feste Peroxo- und Peroxy-Verbindungen
EP1475350A1 (fr) * 2003-05-07 2004-11-10 Degussa AG Granules de percarbonate de sodium enrobés avec une stabilité de stockage améliorée
US7435714B2 (en) 2002-12-20 2008-10-14 Evonik Degussa Gmbh Liquid detergent and cleaning agent composition comprising a multi-coated bleach particle
US7718592B2 (en) 2004-11-11 2010-05-18 Degussa, Gmbh Sodium percarbonate particles having a shell layer comprising thiosulfate
CN101270233B (zh) * 2008-04-22 2010-12-15 浙江时代金科过氧化物有限公司 一种低堆密度颗粒型包膜过碳酸钠的制备方法
CN101270232B (zh) * 2008-04-22 2011-04-20 浙江时代金科过氧化物有限公司 一种颗粒型包膜过碳酸钠的制备方法
CN102642815A (zh) * 2012-03-05 2012-08-22 浙江金科过氧化物股份有限公司 过碳酸钠母液的循环回收利用方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05310402A (ja) * 1992-05-08 1993-11-22 Nippon Peroxide Co Ltd 安定化された過炭酸ソーダの製造法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05310402A (ja) * 1992-05-08 1993-11-22 Nippon Peroxide Co Ltd 安定化された過炭酸ソーダの製造法

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19547055A1 (de) * 1995-12-18 1997-06-19 Solvay Interox Gmbh Durch Beschichtung stabilisierte feste Peroxo- und Peroxy-Verbindungen
US7435714B2 (en) 2002-12-20 2008-10-14 Evonik Degussa Gmbh Liquid detergent and cleaning agent composition comprising a multi-coated bleach particle
EP1475350A1 (fr) * 2003-05-07 2004-11-10 Degussa AG Granules de percarbonate de sodium enrobés avec une stabilité de stockage améliorée
WO2004099071A1 (fr) * 2003-05-07 2004-11-18 Degussa Ag Granules de percarbonate de sodium revetus presentant une stabilite au stockage amelioree
CN100351168C (zh) * 2003-05-07 2007-11-28 德古萨股份公司 具有改进的储存稳定性的涂覆的过碳酸钠颗粒，其制备方法和用途
US7588697B2 (en) 2003-05-07 2009-09-15 Evonik Degussa Gmbh Coated sodium percarbonate granules with improved storage stability
US7718592B2 (en) 2004-11-11 2010-05-18 Degussa, Gmbh Sodium percarbonate particles having a shell layer comprising thiosulfate
CN101270233B (zh) * 2008-04-22 2010-12-15 浙江时代金科过氧化物有限公司 一种低堆密度颗粒型包膜过碳酸钠的制备方法
CN101270232B (zh) * 2008-04-22 2011-04-20 浙江时代金科过氧化物有限公司 一种颗粒型包膜过碳酸钠的制备方法
CN102642815A (zh) * 2012-03-05 2012-08-22 浙江金科过氧化物股份有限公司 过碳酸钠母液的循环回收利用方法

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Publication number Publication date
AU3354395A (en) 1996-03-22
JP3764479B2 (ja) 2006-04-05

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