CA2273435A1 - Stable solid block metal protecting warewashing detergent composition - Google Patents

Stable solid block metal protecting warewashing detergent composition Download PDF

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Publication number
CA2273435A1
CA2273435A1 CA002273435A CA2273435A CA2273435A1 CA 2273435 A1 CA2273435 A1 CA 2273435A1 CA 002273435 A CA002273435 A CA 002273435A CA 2273435 A CA2273435 A CA 2273435A CA 2273435 A1 CA2273435 A1 CA 2273435A1
Authority
CA
Canada
Prior art keywords
block
detergent
alkali metal
sodium carbonate
metal silicate
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002273435A
Other languages
French (fr)
Other versions
CA2273435C (en
Inventor
Steven E. Lentsch
Victor F. Man
Keith E. Olson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ecolab Inc
Original Assignee
Ecolab Inc
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 Ecolab Inc filed Critical Ecolab Inc
Publication of CA2273435A1 publication Critical patent/CA2273435A1/en
Application granted granted Critical
Publication of CA2273435C publication Critical patent/CA2273435C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/06—Phosphates, including polyphosphates
    • 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
    • C11D17/0047—Detergents in the form of bars or tablets
    • 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
    • C11D17/0047—Detergents in the form of bars or tablets
    • C11D17/0052—Cast detergent compositions
    • 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
    • C11D17/0047—Detergents in the form of bars or tablets
    • C11D17/0065—Solid detergents containing builders
    • 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
    • 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
    • C11D3/10—Carbonates ; Bicarbonates
    • 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
    • C11D3/16—Organic compounds
    • C11D3/36—Organic compounds containing phosphorus
    • C11D3/361—Phosphonates, phosphinates or phosphonites
    • 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
    • C11D3/16—Organic compounds
    • C11D3/36—Organic compounds containing phosphorus
    • C11D3/364—Organic compounds containing phosphorus containing nitrogen
    • 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/02—Inorganic compounds
    • C11D7/04—Water-soluble compounds
    • C11D7/10—Salts
    • C11D7/12—Carbonates bicarbonates
    • 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/36—Organic compounds containing phosphorus

Abstract

The dimensionally stable alkaline solid block warewashing detergent uses an E-form binder forming a solid comprising a sodium carbonate source of alkalinity, a metal corrosion protecting alkali metal silicate composition, a sequestrant, a surfactant package and other optional material. The solid block is dimensionally stable and highly effective in removing soil from the surfaces of dishware in the institutional and industrial environment. The E-form hydrate comprises an organic phosphonate and a hydrated carbonate.

Claims (18)

1. A solid block warewashing detergent composition comprising:
(a) about 10 to 80 wt% of Na2CO3;
(b) an alkali metal silicate having a M2O:SiO2 ratio of about 1:1 to 1:5; and (c) an effective amount of an organic phosphonate hardness sequestering agent;
wherein the block comprises non-hydrated sodium carbonate and a binding agent comprising hydrated sodium carbonate and organic phosphonate, and wherein the block is substantially free of a second source of alkalinity.
2. The method of claim 1 wherein the alkali metal silicate has a water content of about 5 to 25 wt%.
3. The composition of claim 1 wherein the block comprises about 0.1 to 2.0 moles of water per mole of sodium carbonate
4. The composition of claim 1 wherein the hydrated sodium carbonate comprises a monohydrate and the detergent comprises about 1.5 to 15 wt% of a surfactant composition comprising an anionic surfactant, a nonionic polymeric surfactant or mixtures thereof.
5. The block of claim 1 wherein the blended mass is extruded to form the block.
6. The composition of claim 1 wherein the block has a mass greater than about 10 gms.
7. The block of claim 1 wherein the organic phosphonate sequestrant comprises a potassium phosphonate and is used in an amount of about 0.5 to 20 wt%.
8. The block of claim 7 wherein the sequestrant also comprises an inorganic condensed phosphate.
9. The block of claim 8 wherein the sequestrant comprises about 3 to 20 wt% of the organic phosphonate and additionally comprises a tripolyphosphate sequestrant.
10. The block of claim 1 wherein there are less than about 1.7 moles of water per mole of sodium carbonate.
11. The block of claim 1 wherein the solid product is substantially free of NaOH.
12. The block of claim 1 wherein the silicate comprises Na2O:SiO2 of about 1:1.5 to 1:2.5.
13. The block of claim 1 wherein the block comprises about 10 to 30 wt% of the alkali metal silicate.
14. A method of cleaning ware with a metal protecting anticorrosion alkaline detergent, the method comprising:
(a) contacting ware with an alkaline solid block warewashing detergent comprising about 20 to 60 wt% of Na2CO3; about 10 to 30 wt% of an alkali metal silicate having an M2O:SiO2 ratio of about 1:1 to 1:5; and about 0.1 to 20 wt% of an organic phosphonate hardness sequestering agent;
the block comprising nonhydrated sodium carbonate and a binding agent comprising hydrated sodium carbonate and an organic phosphonate; wherein the block is substantially free of a second source of alkalinity, creating washed ware; and (b) rinsing the washed ware.
15. The method of claim 14 wherein the concentration of the detergent in the aqueous alkaline detergent comprises about 100 parts of detergent to about parts of detergent per each one million parts by weight of the aqueous detergent.
16. The method of claim 15 wherein the alkali metal silicate has a water content of about 5 to 25 wt%.
17. The method of claim 15 wherein the alkali metal silicate has a M2O:SiO2 of about 1:1.5 to about 1:2.5.
18. The method of claim 14 wherein the detergent comprises about 15 to about 30 wt% of the alkali metal silicate having an M2O:SiO2 ratio of about 1:2 and a water content of about 15 to 20 wt%.
CA002273435A 1998-06-02 1999-06-01 Stable solid block metal protecting warewashing detergent composition Expired - Lifetime CA2273435C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/089,095 1998-06-02
US09/089,095 US6156715A (en) 1997-01-13 1998-06-02 Stable solid block metal protecting warewashing detergent composition

Publications (2)

Publication Number Publication Date
CA2273435A1 true CA2273435A1 (en) 1999-12-02
CA2273435C CA2273435C (en) 2009-12-01

Family

ID=22215657

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002273435A Expired - Lifetime CA2273435C (en) 1998-06-02 1999-06-01 Stable solid block metal protecting warewashing detergent composition

Country Status (10)

Country Link
US (4) US6156715A (en)
EP (1) EP0962521B1 (en)
JP (2) JP3618580B2 (en)
CN (1) CN1114686C (en)
AT (1) ATE266085T1 (en)
AU (1) AU754897B2 (en)
BR (1) BR9901762B1 (en)
CA (1) CA2273435C (en)
DE (1) DE69916929T2 (en)
ZA (1) ZA993700B (en)

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