PATENT

3760.  TSCHUNKER, E. AND KLAMROTH, A.  (I.G. Farbenindustrie A.G.).  Purifying Synthetic Methanol by Use of Permanganate.  United States Patent 1,744,180, Jan. 21, 1930; appl. filed Oct. 12, 1927.  Chem. Abs., vol. 24, 1930, p. 1393.

See French Patent 650,543 (abs. 1517).