MXPA98007742A - Aspersion drying component comprising quelata - Google Patents
Aspersion drying component comprising quelataInfo
- Publication number
- MXPA98007742A MXPA98007742A MXPA/A/1998/007742A MX9807742A MXPA98007742A MX PA98007742 A MXPA98007742 A MX PA98007742A MX 9807742 A MX9807742 A MX 9807742A MX PA98007742 A MXPA98007742 A MX PA98007742A
- Authority
- MX
- Mexico
- Prior art keywords
- spray
- weight
- chelator
- acid
- dried
- Prior art date
Links
- 238000001035 drying Methods 0.000 title description 2
- 239000002738 chelating agent Substances 0.000 claims abstract description 21
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims abstract description 8
- -1 alkaline earth metal sulphate Chemical class 0.000 claims abstract description 7
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 6
- 150000001340 alkali metals Chemical class 0.000 claims abstract description 6
- 239000002253 acid Substances 0.000 claims description 11
- 239000011780 sodium chloride Substances 0.000 claims description 10
- CSNNHWWHGAXBCP-UHFFFAOYSA-L magnesium sulphate Substances [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 7
- 150000003839 salts Chemical class 0.000 claims description 7
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 6
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 5
- 229910052749 magnesium Inorganic materials 0.000 claims description 5
- 239000011777 magnesium Substances 0.000 claims description 5
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 4
- ABLZXFCXXLZCGV-UHFFFAOYSA-N phosphonic acid group Chemical group P(O)(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 claims description 4
- 239000001384 succinic acid Substances 0.000 claims description 3
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 2
- PIICEJLVQHRZGT-UHFFFAOYSA-N 1,2-ethanediamine Chemical class NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims 1
- 229940090960 diethylenetriamine pentamethylene phosphonic acid Drugs 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000003599 detergent Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- DUYCTCQXNHFCSJ-UHFFFAOYSA-N DTPMP Chemical compound OP(=O)(O)CN(CP(O)(O)=O)CCN(CP(O)(=O)O)CCN(CP(O)(O)=O)CP(O)(O)=O DUYCTCQXNHFCSJ-UHFFFAOYSA-N 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- MGRVRXRGTBOSHW-UHFFFAOYSA-N Aminomethylphosphonic acid Chemical class NCP(O)(O)=O MGRVRXRGTBOSHW-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 238000004061 bleaching Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- NJRWNWYFPOFDFN-UHFFFAOYSA-L phosphonate(2-) Chemical compound [O-][P]([O-])=O NJRWNWYFPOFDFN-UHFFFAOYSA-L 0.000 description 2
- 239000000344 soap Substances 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000001694 spray drying Methods 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- VKZRWSNIWNFCIQ-UHFFFAOYSA-N 2-[2-(1,2-dicarboxyethylamino)ethylamino]butanedioic acid Chemical compound OC(=O)CC(C(O)=O)NCCNC(C(O)=O)CC(O)=O VKZRWSNIWNFCIQ-UHFFFAOYSA-N 0.000 description 1
- CJAZCKUGLFWINJ-UHFFFAOYSA-N 3,4-dihydroxybenzene-1,2-disulfonic acid Chemical class OC1=CC=C(S(O)(=O)=O)C(S(O)(=O)=O)=C1O CJAZCKUGLFWINJ-UHFFFAOYSA-N 0.000 description 1
- ABLZXFCXXLZCGV-UHFFFAOYSA-L CHEBI:8154 Chemical class [O-]P([O-])=O ABLZXFCXXLZCGV-UHFFFAOYSA-L 0.000 description 1
- 229920002456 HOTAIR Polymers 0.000 description 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L Zinc sulfate Chemical class [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 125000003342 alkenyl group Chemical group 0.000 description 1
- 125000005466 alkylenyl group Chemical group 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000012970 cakes Nutrition 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-M carbamate Chemical class NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 1
- 125000004432 carbon atoms Chemical group C* 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N edta Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- 235000012438 extruded product Nutrition 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 150000003444 succinic acids Chemical class 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
Abstract
The present invention relates to a spray-dried component which is in the form of a free-flowing particle with high chelating activity, comprising: at least 50%, preferably at least 60% by weight of a chelator, of 1 % to 25%, preferably 5% to 10% by weight of an alkali metal or alkaline earth metal sulphate, and preferably less than 10% by weight moisture
Description
SPRAYING COMPONENT THAT COMPRISES CHELATATOR
FIELD OF THE INVENTION
The present invention relates to a spray-dried component comprising a chelator. in particular diethi lentriaminepentamethesilphosphonic acid or its salts. Such components are useful in granular detergent products and also as intermediates in the manufacture of bar soap, detergent tablets and other forms of detergent such as agglomerated and simulated extruded products.
BACKGROUND OF THE INVENTION
US-A-4 259 200. Issued on March 31, 19B1"discloses phosphonates that form complexes with calcium ions" magnesium "zinc or aluminum" being the molar ratio of metal ion to phosphonate of at least i: i. It is disclosed that magnesium and phosphonate can be premixed in any suitable solvent »including water» optionally mixed with other detergent components »and spray dried. The aim is to improve the stability in the bleaching of bleaching compositions. EP-A-0 225 309 »published June 10, 197, describes the addition of alkali metal or alkaline earth metal salts to particles comprising diethylene-triaminepentamethylphosphine acid» for the purpose of improving the properties of free flow and storage. The amount of sulfate is from 60% to 200% of the dry weight of the chelator »corresponding to a weight ratio of metal ion salt to chelator of 0.6: 1 to 2: 1. The preferred water content after spray drying is less than 10% by weight of the particle. The prior art does not suggest that spray-dried components having a high chelator content (at least 50% by weight) and still maintaining good free-flowing properties can be prepared. The object of the present invention is to provide a spray-dried component that is in the form of a free-flowing particle with a super-chelating activity.
BRIEF DESCRIPTION OF THE INVENTION
This object is achieved by a spray-dried component comprising: i) at least 50%. preferably at least 60% by weight of a chelator; ii) from 1% to 25%. preferably from 5% to 10%, by weight of an alkali metal or alkaline earth metal sulphate; and i i) preferably less than 10% by weight moisture 1 ibre. The chelator is preferably a phosphonic or succinic acid, or phosphonic or succinic acid salt. Preferably the chelator is selected from the group consisting of diethylenetria inapenta eti lenphosphonic acid. IM.N'-disuccinic acid or mixtures or salts thereof. The alkaline earth metal is preferably magnesium.
DETAILED DESCRIPTION OF THE INVENTION
The spray-dried component of the present invention comprises a chelator. Chelators are used for example in detergent compositions for their ability to form complexes with metal ions. such as iron and / or manganese, forming soluble chelates. Suitable chelators can be selected from the group consisting of indocarboxylates and amophosphonates. polyfunctionally substituted aromatic chelators and mixtures thereof. The aminocarboxylates include ethanediaminetetraacetates ("EDTA"), "N-hydroxyethylpentel dianatriacetates, nitr lotriacetates," and lendiami atetra-proprionates. trieti lentetraaminohexaacetatos. diethylenetria inopentaacetates. and etanoldigl icines »alkali metal, ammonium and substituted ammonium salts thereof, and mixtures thereof. Useful aminophosphonates include the lendiaminetetrakis (methylenphosphonates). sold as DEQUEST. "Preferably, these aminophosphonates do not contain alkyl or alkenyl groups with more than about 6 carbon atoms, Particularly preferred chelators are diethylenetriamipentamethylenephosphonic acid (" DTPMP ") and eti-Tendy" amnatetramethylphosphosphonic acid (EDTMP). Polyfunctionally substituted aromatic chelators are also useful in the components of the present, US-A-3 812 044. Issued May 21, 1974 for Connor and others. Preferred compounds of this type in acid form are the dihydroxydisulfobenzenes such as 1,2-dihydroxy-3,5-disulfurbune. A preferred biodegradable chelator for use herein is ethylenediamine-N.N'-disuccinate ("EDDS") "especially the CS.S3 isomer as described in US-A-4 704 233, issued November 3, 19T7 for Hartman and PerKins. Magnesium »aluminum or zinc sulfates are preferred for use in the present invention with magnesium sulfate being most preferred. Particularly preferred is the Epson salt. MgSO4 7H20 »that is to say the hydrated crystalline form of magnesium sulphate with seven moles of water. The chelators used in the present invention can be conveniently provided from commercially available sources in aqueous solution. Typical commercially available solutions have a chelating activity of about 40% to about 60% by weight. The spray-dried component can be produced by mixing said aqueous solution with the required amount of the sulfate, with the addition of more water »if necessary to reduce the total solids content» and then forming granules by sprinkling the solution in a spray-drying tower conventional countercurrent or concurrent. The water in the tower is evaporated by hot gas. usually hot air, preferably up to a level of less than 10% by weight of free moisture in the final spray-dried component. Optionally, spray-dried granules can be treated with additional drying and / or cooling steps in conventional treatment equipment such as a fluidized bed. Normally larger and smaller fractions are removed, for example by passing the granules on a vibrating screen. Additional treatment including additional steps of granulation, agglomeration or compaction as well as dry blending with other components may be to provide finished products such as detergent powders, bar soap and tablets.
EXAMPLES
Example l Example 2
DTPMP 80 84 MgS04 7H20 10 5 Sodium chloride 5 6 Moisture 5 5
DTPMP is the heptasodium salt of diethyltriamine-pentamethyl-phosphonic acid. MgS04 7H20 is the salt of Epsom All levels are in percent by weight unless otherwise specified.
The spray-dried component produced in these examples has an overall density of 500 g / 1 to 700 g / 1. The component absorbs very little moisture after its manufacture (for example of atmospheric humidity) and therefore minimizes or eliminates the flow and cake formation problems »even in high temperature and high humidity environments.
Claims (6)
1. - A spray-dried component comprising: i) chelator; ii) from about 1% to approximately 25% by weight of an alkali metal or alkaline earth metal sulphate; and ii) free moisture; characterized in that the spray-dried component comprises at least 50% by weight of a chelator.
2. A spray-dried component according to claim 1, characterized in that it comprises: i) at least 60% by weight of chelator; ii) from about 5% to about 10% by weight of an alkali metal or alkaline earth metal sulfate; and iii) less than about 10% by weight ibre moisture.
3. A component spray-dried according to claim 1 or claim 2. characterized in that the chelator is a phosphonic or succinic acid "or salt of phosphonic or succinic acid. or mixtures thereof. A.
A spray-dried component according to claim 3. characterized in that the chelator is selected from the group consisting of diethyltriamine-pentamethyl acid in osphonic acid, eti-lendiamine-N'-disuccinic acid, salts of diethylenetriaminepentamethylenephosphonic acid. salts of ethylene diamine N-N'-disuccinic acid, or mixtures thereof.
5. - A spray-dried component according to claim 1 or claim 2 »characterized in that the alkaline earth metal is magnesium.
6. A component spray-dried according to claim 5 »characterized in that the alkaline earth metal sulfate is in the hydrated crystalline form of MgSO4 7H20.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US96200801.7 | 1996-03-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MXPA98007742A true MXPA98007742A (en) | 1999-04-06 |
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