1449. ------. [I. G. FARBENINDUSTRIE, A. G.] [Process for Removing Paraffin From Oils.] German Patent Appl. I 76,558. OZ 14,554, filed Jan. 10, 1944 (Cl. IV d-23 b). TOM Reel 17, item 36, frames 1,029-1,034.

PATENTS

1449. ------. [I. G. FARBENINDUSTRIE, A. G.] [Process for Removing Paraffin From Oils.] German Patent Appl. I 76,558. OZ 14,554, filed Jan. 10, 1944 (Cl. IV d-23 b). TOM Reel 17, item 36, frames 1,029-1,034.

In deparaffining oils by cooling in presence of solvents, use is made of tetrahydrofuran together with the other solvents that favor the crystallation of the paraffin but have a low washing ability. Such solvents are acetone, acetonitrile, methanol, dichlorethane, and aliphatic alcohols, whereas benzol and methylenechloride have the opposite action.