Recovery and utilization of phosphate sludge

Details Recovery and utilization of phosphate sludge Recovery and utilization of phosphate sludge

1991-09-12

1993-12-28

Willis, Jr., Prince

Compositions

Electrolytes for electrical devices

72 42, C10M10306, C10M10504, C10M10900

Patent

active

052736679

ABSTRACT:
A method for treating the phosphate sludge waste from phosphate conversion baths used in the metal forming and metal working industry is described whereby the phosphate sludge is completely converted into a lubricant additive which can be used in lubricant formulations for the metal forming and metal working industry as well as general purpose lubricants. By operation of this process, waste treatment and waste disposal problems associated with the phosphate sludge are essentially eliminated. Various dry-soap lubricant formulations, warm forming lubricant formulations, non-reactive lubricant formulations, and metal precoat formulations containing the recovered or recycled phosphate sludge additive are described. The lime normally contained in many of these lubricant formulations can be significantly reduced or essentially eliminated by using the recovered phosphate sludge additive of this invention, thereby resulting in improved lubricant formulations. The recovered phosphate sludge is especially useful as an Extreme Pressure Additive.

REFERENCES:
patent: 154130 (1874-08-01), Eggleston
patent: 3344065 (1967-09-01), Gansheimer
patent: 3650686 (1972-03-01), Hudson et al.
patent: 3652414 (1972-03-01), Bergeron
patent: 3653875 (1972-04-01), Waters et al.
patent: 4204925 (1980-05-01), Coll-Palagos
patent: 4968360 (1990-11-01), Hosemann et al.
patent: 4986977 (1991-01-01), Peters
Waters, Recovery of Metals and Phosphates from Waste Phosphate Sludge, Metal Finishing, Aug. 1971, pp. 39-42.
Smalheer and Smith, Lubricant Additives, 1967.

Affiliated with

Also associated with

Rating

Recovery and utilization of phosphate sludge does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Recovery and utilization of phosphate sludge, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Recovery and utilization of phosphate sludge will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1540599