Solid alkaline detergent and process for making the same
First Claim
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1. A process for producing a solid detergent comprising the steps of:
- (a) mixing an effective amount of an alkali metal salt nitrilotriacetic acid as a hardness sequestering agent into an aqueous solution containing less than about 51 percent, by weight, of an alkaline material selected from the group consisting of alkali metal hydroxides, alkali metal silicates and mixtures thereof at a solution temperature between about 50°
F. and about 120°
F. to form a liquid dispersion;
(b) adding an amount of the same alkaline material in solid form to the dispersion sufficient to cause eventual solidification of the dispersion;
(c) mixing the resulting liquid dispersion until homogeneous;
(d) dispensing the mixed liquid dispersion into a suitable receptacle; and
(e) allowing the dispensed liquid dispersion to solidify.
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Abstract
A method for producing a solid alkaline detergent in which an effective amount of a hardness sequestering agent is mixed in an aqueous solution containing less than about 51 percent of an alkali metal hydroxide or an alkali metal silicate at a temperature between about 55° F. and about 130° F. to form a liquid dispersion. A solid caustic material is then added to the liquid dispersion in sufficient quantity to cause the eventual solidification of the dispersion. The dispensed is then mixed until homogeneous and can then be dispersion into a suitable receptacle and permitted to solidfy.
95 Citations
14 Claims
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1. A process for producing a solid detergent comprising the steps of:
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(a) mixing an effective amount of an alkali metal salt nitrilotriacetic acid as a hardness sequestering agent into an aqueous solution containing less than about 51 percent, by weight, of an alkaline material selected from the group consisting of alkali metal hydroxides, alkali metal silicates and mixtures thereof at a solution temperature between about 50°
F. and about 120°
F. to form a liquid dispersion;(b) adding an amount of the same alkaline material in solid form to the dispersion sufficient to cause eventual solidification of the dispersion; (c) mixing the resulting liquid dispersion until homogeneous; (d) dispensing the mixed liquid dispersion into a suitable receptacle; and (e) allowing the dispensed liquid dispersion to solidify. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification