Deicing solution

Abstract

A de-icing and anti-icing composition in the form of an aqueous solution which includes molasses, and an inorganic freezing point depressant in the form of a chloride salt.

We claim:  
     
         1 . A method of forming a de-icing and anti-icing composition which comprises: 
 (a) providing an aqueous solution which contains molasses and a chloride salt, and    (b) applying said aqueous solution to a source of particulate material selected from the group consisting of salt, sand and aggregates and mixtures thereof.    
     
     
         2 . The method of claim I in which the molasses and chloride in said aqueous solution are present in the following concentration:  
       
         
           
                 
                 
               
                     
                     
                 
                     
                     
                 
                     
                   Wt % 
                 
                     
                     
                 
                     
                 
                 
                 
                 
               
                     
                   Molasses 
                   3 to 60 
                 
                     
                   Chloride salt 
                   5 to 35. 
                 
                     
                     
                 
                     
                     
                 
             
                
                
                
                
               
               
                
               
            
             
                
                
                
                
               
            
           
         
       
     
     
         3 . The method of  claim 2  in which the chloride salt is at least one selected from the group consisting of sodium chloride, magnesium chloride and calcium chloride.  
     
     
         4 . The method of  claim 2  in which the weight average molecular weight of the molasses is in the range of about 260 to 295.  
     
     
         5 . The method of  claim 2  in which the aqueous solution has a viscosity of about 0.1 to 3 poises at 25° C.  
     
     
         6 . The method of  claim 2  in which the molasses is at least one selected from the group consisting of cane sugar molasses, sugar beet molasses, citrus molasses, and corn sugar molasses.  
     
     
         7 . The method of  claim 1  in which the aqueous solution has the following composition:  
       
         
           
                 
                 
               
                     
                     
                 
                     
                     
                 
                     
                   Wt % 
                 
                     
                     
                 
                     
                 
                 
                 
                 
               
                     
                   Molasses 
                     3 to 60 
                 
                     
                   Chloride salt 
                     5 to 35 
                 
                     
                   Thickener 
                   0.15 to 10. 
                 
                     
                     
                 
                     
                     
                 
             
                
                
                
                
               
               
                
               
            
             
                
                
                
                
                
               
            
           
         
       
     
     
         8 . Applying the coated particulate composition of  claim 1  to an outdoor surface.  
     
     
         9 . A method of forming a de-icing and anti-icing composition which comprises: 
 (a) providing an aqueous solution which contains 3 to 60 wt % molasses and 5-35 wt % chloride salt, and    (b) applying said aqueous solution to a source of particulate material selected from the group consisting of rock salt, sand and aggregates and mixtures thereof whereby said aqueous solution forms a coating on said particulates.    
     
     
         10 . The method of  claim 9  in which the chloride salt is at least one selected from the group consisting of sodium chloride, magnesium chloride and calcium chloride.  
     
     
         11 . The method of  claim 9  in which the weight average molecular weight of the molasses is in the range of about 260 to 295.  
     
     
         12 . The method of  claim 9  in which the aqueous solution has a viscosity of about 0.1 to 3 poises at 25° C.  
     
     
         13 . The method of  claim 9  in which the molasses is at least one selected from the group consisting of cane sugar molasses, sugar beet molasses, citrus molasses, and corn sugar molasses.  
     
     
         14 . Applying the coated particulate composition of  claim 1  to an outdoor surface.