RU2001101239A - COATED PARTICLES OF SODIUM SODIUM PERCARBONATE, METHOD FOR PRODUCING THEM, THEIR APPLICATION IN WASHING COMPOSITIONS AND WASHING COMPOSITIONS CONTAINING THEM - Google Patents

COATED PARTICLES OF SODIUM SODIUM PERCARBONATE, METHOD FOR PRODUCING THEM, THEIR APPLICATION IN WASHING COMPOSITIONS AND WASHING COMPOSITIONS CONTAINING THEM

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Publication number
RU2001101239A
RU2001101239A RU2001101239/12A RU2001101239A RU2001101239A RU 2001101239 A RU2001101239 A RU 2001101239A RU 2001101239/12 A RU2001101239/12 A RU 2001101239/12A RU 2001101239 A RU2001101239 A RU 2001101239A RU 2001101239 A RU2001101239 A RU 2001101239A
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Russia
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weight
sodium percarbonate
coated particles
alkali metal
paragraphs
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RU2001101239/12A
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Russian (ru)
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RU2223910C2 (en
Inventor
Алун П. ДЖЕЙМС
Грехем Р. ХОРН
Том КЕНДИ
Рихард Реслер
Манфред Матес
Альфред ЗЕНТГЕРАТ
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Солвей (Сосьете Аноним)
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Priority claimed from EP98304478A external-priority patent/EP0962424A1/en
Application filed by Солвей (Сосьете Аноним) filed Critical Солвей (Сосьете Аноним)
Publication of RU2001101239A publication Critical patent/RU2001101239A/en
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Publication of RU2223910C2 publication Critical patent/RU2223910C2/en

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Claims (11)

1. Покрытые оболочкой частицы перкарбоната натрия, содержащие a) ядро из перкарбоната натрия, и b) оболочку, по существу свободную от соединений сульфатов, боратов и магния, содержащую, по крайней мере, 30 и не более 75% вес. /вес. карбоната щелочного металла, и по крайней мере, 25 и не более 70% вес. /вес. силиката щелочного металла, где оболочку получают, используя одновременно карбонат и силикат щелочного металла в виде раствора для нанесения оболочки для получения однородной дисперсии карбоната щелочного металла и силиката щелочного металла в оболочке.1. Coated particles of sodium percarbonate containing a) a core of sodium percarbonate, and b) a shell substantially free of sulfate, borate, and magnesium compounds, containing at least 30 and not more than 75% by weight. /weight. alkali metal carbonate, and at least 25 and not more than 70% by weight. /weight. alkali metal silicate, where the shell is obtained using both carbonate and alkali metal silicate in the form of a coating solution to obtain a uniform dispersion of alkali metal carbonate and alkali metal silicate in the shell. 2. Покрытые оболочкой частицы перкарбоната натрия по п. 1, где оболочка содержит 40 - 70% вес. /вес. карбоната щелочного металла и 30 - 60% вес. /вес. силиката щелочного металла, и где доля оболочки составляет 1 - 5% вес. /вес. от покрытого оболочкой перкарбоната натрия, предпочтительно 2 - 4% вес. /вес. 2. Coated particles of sodium percarbonate according to claim 1, where the shell contains 40 to 70% by weight. /weight. alkali metal carbonate and 30-60% by weight. /weight. alkali metal silicate, and where the proportion of the shell is 1 to 5% by weight. /weight. from coated sodium percarbonate, preferably 2 to 4% by weight. /weight. 3. Покрытые оболочкой частицы перкарбоната натрия по п. 1 или 2, имеющие АК 12 - 15% вес. /вес. , предпочтительно 13,9 - 14,4% вес. /вес. объемную плотность 0,9 - 1,2 г/см3, предпочтительно 1,0 - 1,1 г/см3, и показатель впитывания влаги 10 - 100 г/кг, предпочтительно 15 - 70 г/кг, наиболее предпочтительно 20 - 50 г/кг.3. Coated particles of sodium percarbonate according to claim 1 or 2, having AK 12 - 15% by weight. /weight. preferably 13.9 to 14.4% by weight. /weight. bulk density 0.9 - 1.2 g / cm 3, preferably 1.0 - 1.1 g / cm3, and a moisture absorption rate of 10 - 100 g / kg, preferably 15 - 70 g / kg, most preferably 20 - 50 g / kg 4. Покрытые оболочкой частицы перкарбоната натрия по любому из пп. 1-3, имеющие время 90% растворения 0,5 - 3,0 мин, предпочтительно 0,9 - 2,5 мин, показатель истирания, измеренный согласно стандартной методике ISO 5937-1980, 0,05 - 5,0%, предпочтительно 0,1 - 4,0%, и термостабильность, измеренную с помощью микрокалориметрии при температуре 40oС, 0,1 - 12,0 мкВт/г, в частности 0,2 - 4,0 мкВт/г, предпочтительно, 0,3 - 3,0 мкВт/г.4. Coated particles of sodium percarbonate according to any one of paragraphs. 1-3, having a 90% dissolution time of 0.5 - 3.0 minutes, preferably 0.9 - 2.5 minutes, an attrition rate measured according to standard procedure of ISO 5937-1980, 0.05 - 5.0%, preferably 0.1 to 4.0%, and thermal stability, measured by microcalorimetry at a temperature of 40 o C, 0.1 to 12.0 μW / g, in particular 0.2 to 4.0 μW / g, preferably 0, 3 - 3.0 μW / g. 5. Покрытые оболочкой частицы перкарбоната натрия по любому из пп. 1-4, имеющие средний размер частиц 500 - 900 мкм, предпочтительно 550 - 850 мкм, площадь поверхности 2 - 6 м2/кг, предпочтительно, 3 - 5,3 м2/кг, и содержащие фракцию частиц, имеющих размер, превышающий 1000 мкм, не более 30% вес. /вес. , предпочтительно, не более 20% вес. /вес.5. Coated particles of sodium percarbonate according to any one of paragraphs. 1-4, having an average particle size of 500 to 900 μm, preferably 550 to 850 μm, a surface area of 2 to 6 m 2 / kg, preferably 3 to 5.3 m 2 / kg, and containing a fraction of particles having a size exceeding 1000 microns, not more than 30% weight. /weight. preferably not more than 20% by weight. /weight. 6. Покрытые оболочкой частицы перкарбоната натрия по любому из пп. 1-5, где ядро перкарбоната натрия получают с использованием способа кристаллизации без высаливающего агента. 6. Coated particles of sodium percarbonate according to any one of paragraphs. 1-5, where the core of sodium percarbonate is obtained using a crystallization method without salting out agent. 7. Способ получения покрытых оболочкой частиц перкарбоната натрия по любому из пп. 1-6, в котором не покрытые оболочкой частицы ядра перкарбоната натрия и раствор для нанесения оболочки, полученный смешиванием раствора карбоната щелочного металла и раствора силиката щелочного металла, помещают в смеситель, причем смеситель работает при температуре от комнатной температуры до 50oС, для распределения раствора для нанесения оболочки по поверхности частиц ядра, и получения влажных покрытых оболочкой частиц, затем влажные покрытые оболочкой частицы удаляют из смесителя и сушат в сушилке с псевдоожиженным слоем, используя поток горячего воздуха при температуре 50 - 90oС c получением сухих покрытых оболочкой частиц.7. A method of producing a coated particles of sodium percarbonate according to any one of paragraphs. 1-6, in which the uncoated particles of the sodium percarbonate core and a coating solution obtained by mixing an alkali metal carbonate solution and an alkali metal silicate solution are placed in a mixer, the mixer operating at a temperature of from room temperature to 50 ° C. , for distribution a solution for coating the surface of the core particles, and to obtain wet coated particles, then the wet coated particles are removed from the mixer and dried in a fluidized bed dryer using otok hot air at a temperature of 50 - 90 o C c to obtain dry coated particles. 8. Способ по п. 7, в котором раствором силиката щелочного металла является раствор силиката натрия, имеющий мольное соотношение SiО2/Na2O от 1 до 4, предпочтительно от 2 до 3,3.8. The method according to claim 7, in which the alkali metal silicate solution is a sodium silicate solution having a molar ratio of SiO 2 / Na 2 O from 1 to 4, preferably from 2 to 3.3. 9. Применение покрытых оболочкой частиц перкарбоната натрия по любому из пп. 1-6 в качестве активного отбеливающего компонента в моющих составах. 9. The use of coated particles of sodium percarbonate according to any one of paragraphs. 1-6 as an active whitening component in detergent compositions. 10. Моющие составы, содержащие покрытые оболочкой частицы перкарбоната натрия по любому из пп. 1-6 в качестве активного отбеливающего компонента, и цеолит в качестве составной части. 10. Detergent compositions containing coated particles of sodium percarbonate according to any one of paragraphs. 1-6 as an active whitening component, and zeolite as an integral part. 11. Моющие составы, содержащие покрытые оболочкой частицы перкарбоната натрия по любому из пп. 1-6 в качестве активного отбеливающего компонента, и не цеолитную составную часть. 11. Detergent compositions containing coated particles of sodium percarbonate according to any one of paragraphs. 1-6 as an active whitening component, and not a zeolite component.
RU2001101239/15A 1998-06-05 1999-06-04 Envelope-covered sodium percarbonate particles, method for their preparing, their application if detergent composition and detergent composition containing thereof RU2223910C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP98304478A EP0962424A1 (en) 1998-06-05 1998-06-05 Coated sodium percarbonate particles, process for their preparation, their use in detergent compositions and detergent compositions containing them
EP98304478.5 1998-06-05

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RU2001101239A true RU2001101239A (en) 2003-01-27
RU2223910C2 RU2223910C2 (en) 2004-02-20

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US (1) US6521583B1 (en)
EP (2) EP0962424A1 (en)
JP (1) JP2002517371A (en)
KR (1) KR20010052549A (en)
CN (1) CN1127450C (en)
AR (1) AR019606A1 (en)
AU (1) AU748218B2 (en)
BR (1) BR9910918A (en)
CA (1) CA2334114A1 (en)
CZ (1) CZ20004538A3 (en)
IL (1) IL139953A (en)
MX (1) MXPA00012028A (en)
NZ (1) NZ508925A (en)
PE (1) PE20000965A1 (en)
PL (1) PL344642A1 (en)
RU (1) RU2223910C2 (en)
TR (1) TR200003594T2 (en)
TW (1) TW458942B (en)
UY (1) UY25545A1 (en)
WO (1) WO1999064350A1 (en)
ZA (1) ZA200006995B (en)

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