Cobalt-containing inhibitor for sour gas conditioning solutions
CA 1084685 A · Owner: The Dow Chemical Company · Inventors: Asperger, Robert G.; Clouse, Robert C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention resides in the area of corrosion inhibition in gas conditioning solutions. The invention is a composition for inhibiting corrosion of iron and steel by carbon dioxide in gas conditioning solutions, consisting of inhibiting concentration of one part by weight of a quaternary pyridinium salt and 0.001-10 parts of a thio compound which is a water- -soluble thiocyanate or an organic thioamide and a small, amount of cobalt as a water-soluble divalent cobalt compound. The advantages obtained are that corrosion is decreased substantially compared with previous inhibitor systems, when substantial amounts of carbon dioxide are removed by the solution, and that the present …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted September 2, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 2, 1997.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.