Use of secondary amines as corrosion inhibitors and antibacterial agents and water-soluble alkaline industrial fluids containing said amines

摘要

PCT No. PCT/SE93/01060 Sec. 371 Date Jul. 25, 1995 Sec. 102(e) Date Jul. 25, 1995 PCT Filed Dec. 8, 1993 PCT Pub. No. WO94/13765 PCT Pub. Date Jun. 23, 1994Secondary amines having the formula (I): R(Y)sNHX, in which R is a hydrocarbon group having 2-12 carbon atoms, Y is the group -CH(OH)CH2-, -OCH2CH(OH)CH2- or -O(CH2)3, X is an alkyl group having 2-3 carbon atoms and substituted with hydroxyl groups in the 2-position or in the 2 - and 3-positions, and s is 0 or 1 with the condition that when s is 0, then X is an alkyl group substituted in the 2- and 3-positions, or a salt thereof, are used as anticorrosion and antimicrobial agents. They are suitable to be incorporated in aqueous, alkaline, industrial fluids. An aqueous, alkaline metal working fluid is also disclosed.