Highly acidic metalated organic acid

Abstract

A highly acidic metalated organic acid composition and its preparation. The acidic composition can be prepared by mixing a monovalent or polyvalent cation and an organic acid in the presence of a strong oxyacid, wherein the resultant acidic composition is less corrosive to a ferrous metal than a solution of a mineral acid having the same acidic pH value as that of the acidic composition, and where in the acid composition is more biocidal than a mixture of the organic acid and a metal salt of the organic acid which mixture has the same acid normality value as that of the acidic composition. The acidic composition can be prepared by mixing at least one regenerating acid, at least one metal base, and at least one organic acid, wherein the amount of the regenerating acid is in excess of the equivalent amount of the metal base.

1 . An acidic composition having an acidic pH value and an acid normality value, the acidic composition comprising: 
 a monovalent or polyvalent cation;    an organic acid; and    an anion of a strong oxyacid,    wherein the acidic composition is less corrosive to a ferrous metal than is a solution of a mineral acid having the same acidic pH value as that of the acidic composition, and    wherein the acid composition is more biocidal than a mixture of the organic acid and a metal salt of the organic acid which mixture having the same acid normality value as that of the acidic composition.    
   
   
       2 . The acidic composition of  claim 1 , wherein the monovalent cation comprises an ion of Group IA element.  
   
   
       3 . The acidic composition of  claim 1 , wherein the polyvalent cation comprises an ion of a Group IIA element, but not beryllium.  
   
   
       4 . The acidic composition of  claim 1 , wherein the polyvalent cation comprises an ion of a Group IIIA element, but not boron.  
   
   
       5 . The acidic composition of  claim 1 , wherein the polyvalent cation comprises a metal of the first transition series.  
   
   
       6 . The acidic composition of  claim 1 , wherein the polyvalent cation comprises an ion of magnesium, calcium, ferrous, copper, or zinc.  
   
   
       7 . The acidic composition of  claim 1 , wherein the polyvalent cation comprises an ion of lead, bismuth, or tin.  
   
   
       8 . The acidic composition of  claim 1 , wherein the organic acid comprises a carboxylic acid or an acidic vitamin.  
   
   
       9 . The acidic composition of  claim 8 , wherein the acidic vitamin comprises vitamin C.  
   
   
       10 . The acidic composition of  claim 1 , wherein the organic acid comprises a monocarboxylic acid, a dicarboxylic acid, or a tricarboxylic acid.  
   
   
       11 . The acidic composition of  claim 1 , wherein the organic acid comprises acetic acid, lactic acid, formic acid, or propionic acid.  
   
   
       12 . The acidic composition of  claim 1 , wherein the organic acid comprises an amino acid.  
   
   
       13 . The acidic composition of  claim 12 , wherein the organic acid comprises glycine, valine, leucine, phenylalanine, lysine, serine, asparagine, glutamic acid, alanine, arginine, aspartic acid, cysteine, histidine, hydroxylysine, hydroxyproline, isoleucine, methionine, proline, threonine, tryptophan, tyrosine, aminoadipic acid, diaminobutyric, ornithine, pepicolic acid, sarcosine or triiodothyronine.  
   
   
       14 . An acidic composition prepared by mixing ingredients comprising: 
 at least one regenerating acid having a first number of equivalents;    at least one metal base having a second number of equivalents; and    at least one organic acid,    wherein the first number of equivalents of the regenerating acid is greater than that of the second number of equivalents of the metal base.    
   
   
       15 . The acidic composition of  claim 14 , wherein the regenerating acid comprises a strong oxyacid of sulfur, phosphorus, nitrogen, chromium, or iodine.  
   
   
       16 . The acidic composition of  claim 14 , wherein the regenerating acid comprises a strong oxyacid of molybdenum, tungsten, or selenium.  
   
   
       17 . The acidic composition of  claim 14 , wherein the regenerating acid comprises sulfuric acid, phosphoric acid, or an acidic solution of sparingly-soluble Group IIA complexes.  
   
   
       18 . The acidic composition of  claim 17 , wherein the acidic sparingly-soluble Group IIA complex is prepared by mixing ingredients comprising a mineral acid and a Group IIA hydroxide, or a Group IIA salt of a dibasic acid, or a mixture thereof.  
   
   
       19 . The acidic composition of  claim 18 , wherein the Group IIA hydroxide comprises calcium hydroxide, the mineral acid comprises sulfuric acid, and the Group IIA salt of the dibasic acid comprises calcium sulfate.  
   
   
       20 . The acidic composition of  claim 14 , wherein the metal base comprises a hydroxide, a carbonate, a bicarbonate, or an oxide of a metal.  
   
   
       21 . The acidic composition of  claim 14 , wherein the metal base comprises a base of a Group IA element.  
   
   
       22 . The acidic composition of  claim 14 , wherein the metal base comprises a base of a Group IIA element, but not beryllium.  
   
   
       23 . The acidic composition of  claim 14 , wherein the metal base comprises a base of a Group IIIA element, but not boron.  
   
   
       24 . The acidic composition of  claim 14 , wherein the metal base comprises a base of a metal of the first transition series.  
   
   
       25 . The acidic composition of  claim 14 , wherein the metal base comprises a base of magnesium, calcium, ferrous, copper, or zinc.  
   
   
       26 . The acidic composition of  claim 14 , wherein the metal base comprises a base of lead, bismuth, or tin.  
   
   
       27 . The acidic composition of  claim 14 , wherein the organic acid comprises a carboxylic acid or an acidic vitamin.  
   
   
       28 . The acidic composition of  claim 27 , wherein the acidic vitamin comprises vitamin C.  
   
   
       29 . The acidic composition of  claim 14 , wherein the organic acid comprises a monocarboxylic acid, a dicarboxylic acid, or a tricarboxylic acid.  
   
   
       30 . The acidic composition of  claim 14 , wherein the organic acid comprises acetic acid, lactic acid, formic acid, or propionic acid.  
   
   
       31 . The acidic composition of  claim 14 , wherein the organic acid comprises an amino acid having an amino group, and wherein the number of equivalents of the regenerating acid is greater than the total number of equivalents of the metal base and the amino group of the amino acid.  
   
   
       32 . The acidic composition of  claim 31 , wherein the organic acid comprises glycine, valine, leucine, phenylalanine, lysine, serine, asparagine, glutamic acid, alanine, arginine, aspartic acid, cysteine, histidine, hydroxylysine, hydroxyproline, isoleucine, methionine, proline, threonine, tryptophan, tyrosine, aminoadipic acid, diaminobutyric, ornithine, pepicolic acid, sarcosine or triiodothyronine.  
   
   
       33 . An acidic composition prepared by mixing ingredients comprising: 
 at least one regenerating acid having a first number of equivalents; and    at least one metal salt of an organic acid having a second number of equivalents,    wherein the first number of equivalents of the regenerating acid is greater than the second number of equivalents of the metal salt of the organic acid.    
   
   
       34 . The acidic composition of  claim 33 , wherein the regenerating acid comprises a strong oxyacid of sulfur, phosphorus, nitrogen, chromium, or iodine.  
   
   
       35 . The acidic composition of  claim 33 , wherein the regenerating acid comprises a strong oxyacid of molybdenum, tungsten, or selenium.  
   
   
       36 . The acidic composition of  claim 33 , wherein the regenerating acid comprises sulfuric acid, phosphoric acid, or an acidic solution of sparingly-soluble Group IIA complexes.  
   
   
       37 . The acidic composition of  claim 36 , wherein the acidic sparingly-soluble Group IIA complex is prepared by mixing ingredients comprising a mineral acid and a Group IIA hydroxide, or a Group IIA salt of a dibasic acid, or a mixture thereof.  
   
   
       38 . The acidic composition of  claim 36 , wherein the Group IIA hydroxide comprises calcium hydroxide, the mineral acid comprises sulfuric acid, and the Group IIA salt of the dibasic acid comprises calcium sulfate.  
   
   
       39 . The acidic composition of  claim 36 , wherein the metal salt of the organic acid comprises a salt of a Group IA element.  
   
   
       40 . The acidic composition of  claim 36 , wherein the metal salt of the organic acid comprises a salt of a Group IIA element, but not beryllium.  
   
   
       41 . The acidic composition of  claim 36 , wherein the metal salt of the organic acid comprises a salt of a Group IIIA element, but not boron.  
   
   
       42 . The acidic composition of  claim 36 , wherein the metal salt of the organic acid comprises a salt of a metal of the first transition series.  
   
   
       43 . The acidic composition of  claim 36 , wherein the metal salt of the organic acid comprises a salt of magnesium, calcium, ferrous, copper, or zinc.  
   
   
       44 . The acidic composition of  claim 36 , wherein the metal salt of the organic acid comprises a salt of lead, bismuth, or tin.  
   
   
       45 . The acidic composition of  claim 36 , wherein the organic acid comprises a carboxylic acid or an acidic vitamin.  
   
   
       46 . The acidic composition of  claim 36 , wherein the acidic vitamin comprises vitamin C.  
   
   
       47 . The acidic composition of  claim 36 , wherein the organic acid comprises a monocarboxylic acid, a dicarboxylic acid, or a tricarboxylic acid.  
   
   
       48 . The acidic composition of  claim 36 , wherein the organic acid comprises acetic acid, lactic acid, formic acid, or propionic acid.  
   
   
       49 . The acidic composition of  claim 36 , wherein the organic acid comprises an amino acid having an amino group, wherein the total number of equivalents of the regenerating acid is greater than the total number of equivalents of the metal salt of the organic acid and the total number of equivalents of amino groups from the amino acid.  
   
   
       50 . The acidic composition of  claim 49 , wherein the organic acid comprises glycine, valine, leucine, phenylalanine, lysine, serine, asparagine, glutamic acid, alanine, arginine, aspartic acid, cysteine, histidine, hydroxylysine, hydroxyproline, isoleucine, methionine, proline, threonine, tryptophan, tyrosine, aminoadipic acid, diaminobutyric, ornithine, pepicolic acid, sarcosine or triiodothyronine.  
   
   
       51 . An acidic composition prepared by mixing ingredients comprising: 
 at least one regenerating acid, wherein the regenerating acid comprises sulfuric acid, phosphoric acid or an acidic solution of sparingly-soluble Group IIA complexes, and wherein the regenerating acid has a first number of equivalents;    at least one polyvalent base, wherein the polyvalent base is calcium hydroxide, calcium carbonate, or magnesium hydroxide, and wherein the polyvalent base has a second number of equivalents; and    at least one organic acid, wherein the organic acid is acetic acid, lactic acid, formic acid or propionic acid, and    wherein the first number of equivalents of the regenerating acid is greater than the second number of equivalents of the polyvalent base.    
   
   
       52 . The acidic composition of  claim 51 , wherein the acidic sparingly-soluble Group IIA complex is prepared by mixing ingredients comprising a mineral acid and a Group IIA hydroxide, or a Group IIA salt of a dibasic acid, or a mixture thereof.  
   
   
       53 . The acidic composition of  claim 52 , wherein the Group IIA hydroxide comprises calcium hydroxide, the mineral acid comprises sulfuric acid, and the Group IIA salt of the dibasic acid comprises calcium sulfate.  
   
   
       54 . An acidic composition prepared by mixing ingredients comprising: 
 at least one regenerating acid, wherein the regenerating acid comprises sulfuric acid, phosphoric acid or an acidic solution of sparingly-soluble Group IIA complexes, and wherein the regenerating acid has a first number of equivalents;    at least one salt of an organic acid, wherein the salt is a calcium or magnesium salt of acetic acid, lactic acid, formic acid or propionic acid, and wherein the salt of the organic acid has a second number of equivalents, and    wherein the first number of equivalents of the regenerating acid is greater than the second number of equivalents of the salt or the organic acid.    
   
   
       55 . The acidic composition of  claim 54 , wherein the acidic sparingly-soluble Group IIA complex is prepared by mixing ingredients comprising a mineral acid and a Group IIA hydroxide, or a Group IIA salt of a dibasic acid, or a mixture thereof.  
   
   
       56 . The acidic composition of  claim 55 , wherein the Group IIA hydroxide comprises calcium hydroxide, the mineral acid comprises sulfuric acid, and the Group IIA salt of the dibasic acid comprises calcium sulfate.  
   
   
       57 . A method of preparing an acidic composition, comprising: 
 dissolving or suspending an organic acid in water to give a solution or suspension of the organic acid;    adding a metal base to this solution or suspension of the organic acid to give a mixture;    adding to the mixture an amount of regenerating acid sufficient to ensure complete regeneration of the organic acid from its metal salt; and    removing the undissolved solid to give the acidic composition.    
   
   
       58 . A method of preparing an acidic composition, comprising: 
 dissolving or suspending a monovalent, divalent or trivalent metal salt of an organic acid to give a solution or suspension of the salt of the organic acid;    adding to the solution or suspension of the salt of the organic acid an amount of regenerating acid sufficient to ensure complete regeneration of the organic from its metal salt; and    removing the undissolved solid to give the acidic composition.