C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
148/17, 23/65, 1
C23C 22/80 (2006.01) C01B 25/37 (2006.01) F16L 37/084 (2006.01) F16L 37/098 (2006.01) F16L 37/12 (2006.01)
Patent
CA 2040872
ABSTRACT OF THE DISCLOSURE In a process of producing activating agents which are based on titanium (IV) phosphate and intended for use in the activation of metal surfaces before a zinc phosphating treatment under conditions ensuring a thorough mixing: a) one or more titanium (IV) compounds which are dissolved in water or acid are alkalinized with aqueous alkali, b) thereafter orthophosphate is added thereto while an alkaline pH value is maintained, and c) the activating agent is stirred at a temperature in the range from 70 to 90°C and under a pressure between standard pressure and 300 bars for at least 15 minutes to bring the activating agent to maturity. Process steps a) and b) are carried out at a temperature between room temperature and 45°C if the maturaing process of step c) is carried out under a pressure between normal pressure and 1 bar overpressure and process steps a) and b) are carried out at a temperature between room temperature and 90°C if the maturing process of step c) is carried out under a pressure between 1 bar and 300 bars. Copper salts are preferably added to the activating agent concentration of 0.5 to 2% by weight referred to the solids content.
Jentsch Dieter
Rein Rudiger
Wittel Klaus
Jentsch Dieter
Metallgesellschaft Aktiengesellschaft
Rein Rudiger
Robic
Wittel Klaus
LandOfFree
Process of producing activating agents for use in zinc... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process of producing activating agents for use in zinc..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process of producing activating agents for use in zinc... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-2073327