Corrosion inhibition of road deicing and dust control salts

Details Corrosion inhibition of road deicing and dust control salts Corrosion inhibition of road deicing and dust control salts

C - Chemistry, Metallurgy

09

K

31/80

C09K 3/18 (2006.01)

Patent

CA 1234687

CORROSION INHIBITION OF ROAD DEICING AND DUST CONTROL SALTS ABSTRACT A process of milking a deicing or dust control agent with reduced corrosivity comprises mixing spent sulfite liquor and chloride salt of an alkali metal or alkaline earth metal proportionally so that the ratio of lignosulfonate solids of the spent sulfite liquor to metal chloride salt is from about 1:25 to about 15:1 and the pH of the mix- ture is from about 4.5 to about 8.5. The sulfite liquor: chloride salt product can be spread onto road surfaces in dried form, sprayed on as single or multiple solutions, and/or mixed with A non-slipping agent or the like.

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