Raymond T. Cunningham - Sugar Land TX Kristen T. Moore - Houston TX
Assignee:
Nalco Chemical Company - Naperville IL
International Classification:
C05C 100 C05C 900 C05C 1300
US Classification:
71 30
Abstract:
A trace amount of a molybdate is disclosed for inhibiting corrosion by concentrated urea-ammonium nitrate fertilizer solutions (UAN) in contact with ferrous metal piping and equipment surfaces. From 10 to 200 ppm of sodium molybdate are blended in a UAN solution containing 20-50 weight percent water for effectively inhibiting corrosion. The corrosion-inhibited UAN solution is non-sludging, non-foaming and essentially free of precipitates.
Use Of Biodegradable Polymers In Preventing Corrosion And Scale Build-Up
Jiansheng Tang - Naperville IL Raymond T. Cunningham - Mechanicsville VA Bo Yang - Naperville IL
Assignee:
Nalco Chemical Company - Naperville IL
International Classification:
C23F 1104 C23F 1116 C02F 500 C09K 300
US Classification:
422 16
Abstract:
A biodegradable corrosion inhibitor, scale inhibitor and dispersant is provided. The inhibitor comprises one or more polymers from a family of poly(amino acid) polymers that include hydroxamic acid-containing sidechains. Methods of reducing corrosion and scale build-up and a method of dispersing solid particulates in a solution or slurry are provided by adding a polymer of the present invention to a solution or slurry.
Isbn (Books And Publications)
Myth and Politics in Thomas Mann's Joseph Und Seine Bruder