Anti-clumping products, compositions and treatments for salts, simple and complex fertilizers
AssigneeCompagnie Francaise de Produits Industriels
InventorsJoseph Schapira, Jean-Claude Cheminaud, Pascal Petitbon, Daniel Chaillou
Life of this patent
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Abstract
An anti-clumping product for salts and for simple and complex fertilizers is essentially constituted by a combination of one or several amine salts of alkylary-1-sulfonic acids and of one or several amine salts of acid phosphate esters, in the presence possibly of an excess of amine.
Claims19
Anti-clumping product for mixing with compounds essentially used as simple or complex fertilizers for preventing clumping consisting of a combination of 15 to 85% of at least one amine salt of an alkylaryl-sulfonic acid and of 85 to 15% of at least one amine salt of an acid phosphate ester, wherein the alkylaryl-sulfonic acid is selected from the group consisting of mono-, di- or trisulfonic acids in which the alkylaryl portion is selected from the group consisting of mono- and polyalky-substituted benzene and naphthalene and wherein the acid phosphates esters correspond to a formula selected from the group consisting of ##STR2## in which R.sub.1 represent an alkylene group having from 2 to 4 carbon atoms,
- R.sub.2, R.sub.3 and R.sub.4 represent an alkyl group having from 8 to 20 carbon atoms or an alkylaryl group of which the akylated portion has from 8 to 12 carbon atoms, and
- n.sub.1, n.sub.2 and n.sub.3 represent a number from 0 to 15.
A method for treating products essentially used as simple or complex fertilizers in order to prevent the clumping of said products, comprising the steps of:
- a) preparing a product for use essentially as a fertilizer including discharging the product from a preparation zone after the product has substantially acquired its final mechanical properties, and
- b) substantially at the moment of discharge, incorporating into the product a composition comprising at least one amine salt of an alkylaryl-sulfonic acid and at least one amine salt of an acid phosphate ester
- and wherein the incorporating step is effected by spraying on the product an amount of the composition of 0.03 to 0.4% by weight with respect to the product and wherein the composition comprises:
- a) from 5 to 35% by weight of a combination of 15 to 85% of at least one amine salt of an alkylaryl-sulfonic acid and of 85 to 15% of at least one amine salt of an acid phosphate ester, wherein the alkylaryl-sulfonic acid is selected from the group consisting of mono-, di- or trisulfonic acids in which the alkylaryl portion is selected from the group consisting of mono- or polyalkyl-substituted benzene and naphthalene and wherein the acid phosphates esters correspond to a formula selected from the group consisting of ##STR3## in which R.sub.1 represents an alkylene group having from 2 to 4 carbon atoms,
- R.sub.2, R.sub.3 and R.sub.4 represent an alkyl group having from 8 to 20 carbon atoms or an alkylaryl group of which the alkylated portion has from 8 to 12 carbon atoms, and
- n.sub.1, n.sub.2 and n.sub.3 represent a number from 0 to 15;
- b) from 0 to 10% of a fatty acid or of one of its salts;
- c) from 20 to 90% by weight of a mineral oil;
- and
- d) from 0 to 50% by weight of macrocrystalline wax.
Dependencies are inferred from the claim text.