NDLI: Ox Dation of Mercaptans

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Ox Dation of Mercaptans

Content Provider	Semantic Scholar
Author	Urban, Peter J.
Copyright Year	2017
Abstract	This invention relates to the oxidation of mercaptans and more particularly to effecting this reaction in the presence of a particular class of compounds. As is well-known, mercaptans are contained in various hydrocarbon fractions, including liquid fractions such as gasoline, kerosene, gas oil, diesel oil, heater oil, range oil, etc., as well as being contained in normally gaseous hydrocarbon fractions. The presence of mercaptains is objectionable in these fractions for a number of reasons, including undesirable odor, corrosiveness, etc. In one embodiment the present invention relates to a method of oxidizing a mercaptan to a disulfide which comprises reacting the mercaptain with an oxidizing agent in the presence of an organo-metallic compound. In a specific embodiment the present invention relates to a method of oxidizing a mercaptain contained in gaso line which comprises reacting said mercaptan with oxygen in the presence of a basic reagent and an organo-metallic compound. As hereinbefore set forth the mercaptains generally will be contained in a hydrocarbon fraction and usually will be present in a small concentration. When the original mercaptain content of the hydrocarbon fraction is sub stantial, it generally is preferred to treat the hydrocarbon fraction by means of a suitable alkaline material, includ ing sodium hydroxide, potassium hydroxide, etc., with or without a solutizer, including phenols, cresols, xylenols, isobutyric acid and salts thereof, alcohols and particularly methanol, etc., in order to remove a major proportion of the mercaptains. However, it generally is difficult to re move the final traces of mercaptans, and the present in 5
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://patentimages.storage.googleapis.com/fb/4c/96/08295949d32cfd/US2744854.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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