METHOD OF PREVENTING OR ELIMINATING SLIPPERINESS OF ROAD SURFACE, LIQUID ANTI-BLACK ICE AGENT AND PROCESS LINE TO PRODUCE AFORESAID AGENT Russian patent published in 2009 - IPC E01C11/24 C09K3/18 B01J14/00 

FIELD: transport, construction.

SUBSTANCE: proposed method is implemented by applying anti-black ice agent comprising, wt %, i.e. calcium chloride of 20 to 30 (on the dry road surface), corrosion inhibitor solution (on the dry road surface) of 1 to 2. Note that the aforesaid agent comprises also, wt %, the following components, i.e. carbamide of 21.5 to 23.0, diazotising salt of 45.78 to 51.85, sodium hexametaphosphate of 0.65 to 0.82, levenol "Ц-201" of 13.0 to 15.2, tetranilum 511K of 13.0 to 15.2 and water making the rest. The proposed method of preparing the liquid anti-black ice agent comprises force-feeding the corrosion inhibitor solution into the mixer at a pressure 1.8 to 2.2 times higher than that of feeding the calcium chloride solution. The resultant reagent is pumped over into storage tank. The process line to produce liquid anti-black ice agent comprises vessels to prepare, store and discharge water solutions of calcium chloride along with the corrosion inhibitor, the said vessels communicating via pipelines with the reagent tank.

EFFECT: expanded temperature range of reagent applications not affecting environments, nor road surface and reducing metal corrosion, easier road surface cleaning.

4 cl, 2 tbl, 1 dwg