US PATENT SUBCLASS 208 / 274
.~.~.~.~ Organic treating agent
Current as of:
June, 1999
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208 /
HD
MINERAL OILS: PROCESSES AND PRODUCTS
177
DF
REFINING
{23}
265
DF
.~ With acids {4}
266
DF
.~.~ Sulfuric acid {7}
273
DF
.~.~.~ With subsequent treatment of the oil {2}
274
.~.~.~.~ Organic treating agent
DEFINITION
Classification: 208/274
(under subclass 273) Processes wherein the sulfuric acid refined oil is subsequently treated with an added organic compound.
SEE OR SEARCH THIS CLASS, SUBCLASS:
237+, for processes of desulfurizing mineral oils with organic compounds.
290+, for processes of refining mineral oil in which an added organic material is employed.