BE772484A - Granular detergent compsn - of good stability contg magnesium silicate - coated perborate - Google Patents
Granular detergent compsn - of good stability contg magnesium silicate - coated perborateInfo
- Publication number
- BE772484A BE772484A BE772484A BE772484A BE772484A BE 772484 A BE772484 A BE 772484A BE 772484 A BE772484 A BE 772484A BE 772484 A BE772484 A BE 772484A BE 772484 A BE772484 A BE 772484A
- Authority
- BE
- Belgium
- Prior art keywords
- perborate
- magnesium silicate
- emi
- coated
- contg
- Prior art date
Links
- 239000003599 detergent Substances 0.000 title claims abstract description 25
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 title claims description 11
- 239000000391 magnesium silicate Substances 0.000 title claims description 11
- 229910052919 magnesium silicate Inorganic materials 0.000 title claims description 11
- 235000019792 magnesium silicate Nutrition 0.000 title claims description 11
- 239000000203 mixture Substances 0.000 claims abstract description 28
- 239000008187 granular material Substances 0.000 claims abstract description 11
- 238000001694 spray drying Methods 0.000 claims abstract description 10
- 238000004061 bleaching Methods 0.000 claims abstract description 6
- 150000004760 silicates Chemical class 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000008240 homogeneous mixture Substances 0.000 claims description 2
- 229910052634 enstatite Inorganic materials 0.000 abstract 3
- 239000011248 coating agent Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000004115 Sodium Silicate Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- CSNNHWWHGAXBCP-UHFFFAOYSA-L magnesium sulphate Substances [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 3
- 229910052911 sodium silicate Inorganic materials 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 2
- 235000019341 magnesium sulphate Nutrition 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229960001922 sodium perborate Drugs 0.000 description 2
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000019794 sodium silicate Nutrition 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/39—Organic or inorganic per-compounds
- C11D3/3942—Inorganic per-compounds
-
- 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
- C01B15/12—Peroxyhydrates; Peroxyacids or salts thereof containing boron
- C01B15/123—Stabilisation of the solid compounds, subsequent to the preparation or to the crystallisation, by additives or by coating
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D11/00—Special methods for preparing compositions containing mixtures of detergents
- C11D11/02—Preparation in the form of powder by spray drying
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0039—Coated compositions or coated components in the compositions, (micro)capsules
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/08—Silicates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Detergent Compositions (AREA)
Abstract
Compsn. having stable and efficient bleaching power are formed mixture obtained by spray-drying and of a detergent mixture obtained by spray-drying and of granules of perborate coated with MgSiO3 or a mixture of silicates contg. an effective amount of MgSiO3. The MgSiO3 is used as 50-100, pref. 70-100 pts./100 pts. of perborate, and the coated perborate is mixed as 2-30, pref. 5-15%, of the total mixture.
Description
Procédé de préparation d'une composition détergente sous forme de granules d'un pouvoir de blanchiment stable et efficace,
Le présente invention concerne un procédé de prépa-
<EMI ID=1.1> instable en présence d'eau, ainsi que sous l'action de la
chaleur et agit de manière défavorable, par exemple en détériorant les additifs auxiliaires.
Les perborates de métaux alcalins (appelés ci-après simplement perborates) ont un effet de blanchiment excellent .
et le borate .ainsi que l'alcali qui en proviennent agissent
comme adjuvants actifs, de sorte que des détergents comprenant
un perborate ont déjà été proposés. Cependant, les perborates,
comme d'autres agents de blanchiment, présentent également une stabilité médiocre en présence d'eau, ainsi que sous l'action
de la chaleur et, pour cette raison, les compositions détergentes en comprenant ont été considérées comme impropres à un usage pratique malgré leur effet de blanchiment supérieur. Particu- lièrement, la préparation de compositions détergentes par séchage par pulvérisation qui sont les meilleures de celles qui se présentent à l'état de poudre ou de granules s'est révélée impossible à cause des températures élevées requises au cours du séchage. En conséquence,le perborate est habituellement mélangé sous forme de poudre ou de granules avec le détergent
sans séchage par pulvérisation.
Les stabilisants habituels des perborates sont le
silicate de sodium, le silicate de magnésium et le sulfate
de magnésium et on connaît diverses compositions détergentes contenant un perborate et de tels composés, mais leur stabilité reste insuffisante malgré une certaine amélioration.
En variante, on peut stabiliser le perborate en l'en-
<EMI ID=2.1>
point de fusion du perborate et mélanger le perborate ainsi enrobé avec un détergent. Cependant, ainsi enrobé de polyéthy-
<EMI ID=3.1>
<EMI ID=4.1>
composition détergente sous forme de granules ayant des propriétés supérieures résultant d'un séchage par- pulvérisation associées à un pouvoir de blanchiment stable et efficace. L'invention est davantage décrite ci-après.
Suivant l'invention,.la nature du détergent sous forme ',de granules n'est pas nécessairement limitée. Ces granules sont obtenus par séchage par pulvérisation d'une composition comprenant de préférence les constituants habituels des compositions détergentes, comme des agents tensio-actifs anioniques, des adjuvants actifs inorganiques, neutres et alcalins, ainsi que des agents de blanchiment optiques, des agents antiredéposition, des parfums, etc.
Suivant l'invention, le perborate est enrobé de silicate de magnésium ou d'un mélange à base de silicate contenant une quantité plus que suffisante de silicate de magnésium. L'enrobage est exécuté suivant toute technique désirée et non par un procédé particulier. A cette fin, un liant tel que de la carboxyméthylcellulose, uri alcool polyvinylique ou un éther
<EMI ID=5.1>
chose est nécessaire.
Bien que l'agent d'enrobage suivant l'invention soit le silicate'de magnésium, ce dernier ne doit pas nécessairement être chimiquement pur et peut convenir même s'il contient une certaine quantité de silicates alcalins et d'autres silicates. Cependant, l'efficacité que peuvent présenter, comme agents d'enrobages le silicate de sodium et le sulfate de magnésium qui, comme on le sait, ont le même effet stabilisant que
le silicate de magnésium, lorsqu'ils sont utilisés en association avec un perborate, est beaucoup inférieure à celle obtenue suivant l'invention. La raison de l'effet supérieur obtenu par le procédé de l'invention, n'est pas encore entière-
<EMI ID=6.1>
du uniquement à l'agent d'enrobage, ni uniquement aux conditions
<EMI ID=7.1>
cet agent d'en.robage et le détergent.
Coone agent d'enrobage* le silicate de magnésium est
<EMI ID=8.1>
<EMI ID=9.1>
Le perborate ainsi enrobé est mélangé avec un déter-
<EMI ID=10.1>
rence 5 à 1$% du poids total de la composition détergente. Le procédé de mélange n'est limité à aucune technique particulière.
L'exemple suivant illustre l'invention.
<EMI ID=11.1>
On granule un mélange de 1 kg de perborate de sodium
<EMI ID=12.1>
On enrobe ensuite les granules de perborate de sodium en y ajoutant 1 kg d'un mélange de silicates contenant du silicate de magnésium en une quantité plus que suffisante. On forme un mélange homogène à partir de 1 kg des grains ainsi obtenus et de 9 kg de granules de détergent obtenus par séchage par pul-
<EMI ID=13.1>
<EMI ID=14.1>
<EMI ID=15.1>
<EMI ID=16.1>
vants: un produit obtenu par mélange homogène de 9 kg du détergent ci-dessus et de 1 kg d'un mélange constitué par simple mélange de quantités équivalentes de silicate de magnésium et <EMI ID=17.1>
<EMI ID=18.1>
obtenu à partir d'un mélange contenant du silicate de sodium <EMI ID=19.1> position détergente de comparaison 2) et un produit obtenu par séchage par pulvérisation d'une suspension d'une composition détergente comprenant un mélange de perborate et de silicate de magnésium et préparé de façon que la teneur en constituants après le séchage par pulvérisation soit la. même que dans le produit de l'invention (composition détergente de comparaison 3).
On détermine pour chaque composition la variation de stabilité au cours d'une certaine durée dans des conditions rigoureuses et on constate que la diminution de la production d'oxygène actif après 30 jours est de 5% dans le cas de la composition détergente de l'invention^ tandis qu'elle est supérieure à 20% dans le cas des compositions de comparaison. Les compositions détergentes de comparaison présentent divers autres inconvénients...
En particulier, la composition détergente de compa- raison 3 accuse une diminution très importante de la production d'oxygène actif immédiatement après sa préparation et, pour cette raison, ne convient pas aux fins de la comparaison.
Ces résultats montrent l'excellente stabilité du
<EMI ID=20.1>
Process for preparing a detergent composition in the form of granules with a stable and effective bleaching power,
The present invention relates to a method of preparing
<EMI ID = 1.1> unstable in the presence of water, as well as under the action of
heat and acts in an unfavorable manner, for example by deteriorating auxiliary additives.
Alkali metal perborates (hereinafter referred to simply as perborates) have an excellent bleaching effect.
and borate. as well as the alkali which come from it act
as active builders, so that detergents comprising
a perborate have already been proposed. However, perborates,
like other bleaching agents, also exhibit poor stability in the presence of water, as well as under the action
heat and, for this reason, detergent compositions comprising them have been considered unsuitable for practical use despite their superior bleaching effect. Particularly, the preparation of spray drying detergent compositions which are the best of those in powder or granular form has been found to be impossible due to the high temperatures required during drying. Accordingly, the perborate is usually mixed in powder or granular form with the detergent.
without spray drying.
The usual stabilizers for perborates are
sodium silicate, magnesium silicate and sulfate
of magnesium and various detergent compositions containing a perborate and such compounds are known, but their stability remains insufficient despite some improvement.
Alternatively, the perborate can be stabilized by including
<EMI ID = 2.1>
melting point of the perborate and mix the perborate thus coated with a detergent. However, thus coated with polyethylene
<EMI ID = 3.1>
<EMI ID = 4.1>
A detergent composition in the form of granules having superior properties resulting from spray drying combined with stable and effective bleaching power. The invention is further described below.
According to the invention, the nature of the detergent in the form of granules is not necessarily limited. These granules are obtained by spray drying a composition preferably comprising the usual constituents of detergent compositions, such as anionic surfactants, inorganic, neutral and alkaline active adjuvants, as well as optical brighteners, anti-redeposition agents. , perfumes, etc.
According to the invention, the perborate is coated with magnesium silicate or with a silicate-based mixture containing a more than sufficient amount of magnesium silicate. The coating is carried out according to any desired technique and not by a particular process. For this purpose, a binder such as carboxymethylcellulose, polyvinyl alcohol or an ether
<EMI ID = 5.1>
thing is necessary.
Although the coating agent according to the invention is magnesium silicate, the latter need not necessarily be chemically pure and may be suitable even if it contains a certain amount of alkali silicates and other silicates. However, the efficacy which sodium silicate and magnesium sulfate can exhibit as coating agents which, as is known, have the same stabilizing effect as
the magnesium silicate, when they are used in combination with a perborate, is much lower than that obtained according to the invention. The reason for the superior effect obtained by the process of the invention is not yet complete-
<EMI ID = 6.1>
due only to the coating agent, nor only to the conditions
<EMI ID = 7.1>
this coating agent and the detergent.
Coone coating agent * magnesium silicate is
<EMI ID = 8.1>
<EMI ID = 9.1>
The perborate thus coated is mixed with a detergent
<EMI ID = 10.1>
contains 5 to $ 1% of the total weight of the detergent composition. The mixing process is not limited to any particular technique.
The following example illustrates the invention.
<EMI ID = 11.1>
Granulate a mixture of 1 kg of sodium perborate
<EMI ID = 12.1>
The granules are then coated with sodium perborate by adding thereto 1 kg of a mixture of silicates containing magnesium silicate in an amount more than sufficient. A homogeneous mixture is formed from 1 kg of the grains thus obtained and 9 kg of detergent granules obtained by spray drying.
<EMI ID = 13.1>
<EMI ID = 14.1>
<EMI ID = 15.1>
<EMI ID = 16.1>
vants: a product obtained by homogeneous mixing of 9 kg of the above detergent and 1 kg of a mixture consisting of simple mixing of equivalent quantities of magnesium silicate and <EMI ID = 17.1>
<EMI ID = 18.1>
obtained from a mixture containing sodium silicate <EMI ID = 19.1> detergent comparison position 2) and a product obtained by spray drying a suspension of a detergent composition comprising a mixture of perborate and silicate of magnesium and prepared so that the content of the components after spray drying is 1. same as in the product of the invention (comparison detergent composition 3).
The variation in stability over a certain period of time under rigorous conditions is determined for each composition and it is found that the decrease in the production of active oxygen after 30 days is 5% in the case of the detergent composition of invention, while it is greater than 20% in the case of the comparison compositions. Comparison detergent compositions have various other disadvantages ...
In particular, the detergent composition of comparison 3 shows a very large decrease in the production of active oxygen immediately after its preparation and, for this reason, is not suitable for the purposes of comparison.
These results show the excellent stability of
<EMI ID = 20.1>
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5779371 | 1971-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE772484A true BE772484A (en) | 1972-01-17 |
Family
ID=13065754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE772484A BE772484A (en) | 1971-07-31 | 1971-09-10 | Granular detergent compsn - of good stability contg magnesium silicate - coated perborate |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE772484A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1103594A3 (en) * | 1999-11-26 | 2003-10-15 | Henkel Kommanditgesellschaft auf Aktien | Detergent composition |
-
1971
- 1971-09-10 BE BE772484A patent/BE772484A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1103594A3 (en) * | 1999-11-26 | 2003-10-15 | Henkel Kommanditgesellschaft auf Aktien | Detergent composition |
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