US PATENT SUBCLASS 208 / 281
.~.~.~ Hydrochloric acid

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


208 /   HD   MINERAL OILS: PROCESSES AND PRODUCTS

177  DF  REFINING {23}
265  DF  .~ With acids {4}
280  DF  .~.~ Halogen containing acid {1}
281.~.~.~ Hydrochloric acid

DEFINITION

Classification: 208/281

(under subclass 280) Processes wherein an hydrochloric acid is employed.

SEE OR SEARCH THIS CLASS, SUBCLASS:

225, for processes of desulfurizing mineral oil with hydrochloric acid.