C - Chemistry – Metallurgy – 14 – C
Patent
C - Chemistry, Metallurgy
14
C
8/67
C14C 3/28 (2006.01)
Patent
CA 1164607
ABSTRACT OF THE DISCLOSURE The present invention relates to methods for leather tanning using a titanium tanning agent particularly one pre- pared from sulphuric-acid titanium-ferriferous solutions. The titanium tanning agent is used for tanning hides pre- treated with a tanning promotor: sodium salt of disulpho- dinaphthylmethane or phthalic anhydride, or aluminium alum, or a mixture of aluminium alum with hexamethylene tetramine; ammonium- titanylsulphate or phenol oligomers dispersed in lignosulphon- ic acids. Tanning of delimed, or delimed and pickled, or delimed pickled and chromed hides is effected using the titanium tanning agent in the presence of lactic acid, alumin- ium alum or products of condensation of synthetic fatty acids with triethanolamine.
415803
Babkin Artur G.
Belokoskov Valentin I.
Gerasimova Lidia G.
Godneva Maria M.
Kolesnikova Nina I.
Institut Khimii I. Tekhnologii Redkikh Elementov I. Minerilnogo
Marks & Clerk
Tsentralny Nauchno-Issledovatelsky Institut Kozhevenno-Obuvnoi P
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