A novel approach to paint sludge recycling: Reclaiming of paint sludge components as ceramic composites and their applic
- PDF / 276,383 Bytes
- 8 Pages / 612 x 792 pts (letter) Page_size
- 95 Downloads / 169 Views
MATERIALS RESEARCH
Welcome
Comments
Help
A novel approach to paint sludge recycling: Reclaiming of paint sludge components as ceramic composites and their applications in reinforcement of metals and polymers S. Nakouzia) Chemistry Department, Ford Motor Company, P.O. Box 2053, MD 3083/SRL, Dearborn, Michigan 48121
D. Mielewski Manufacturing Systems Department, Ford Motor Company, P.O. Box 2053, MD 3135/SRL, Dearborn, Michigan 48121
J. C. Ball, B. R. Kim, and I. T. Salmeen Chemistry Department, Ford Motor Company, P.O. Box 2053, MD 3083/SRL, Dearborn, Michigan 48121
D. Bauer Manufacturing Systems Department, Ford Motor Company, P.O. Box 2053, MD 3135/SRL, Dearborn, Michigan 48121
C. K. Narulaa) Chemistry Department, Ford Motor Company, P.O. Box 2053, MD 3083/SRL, Dearborn, Michigan 48121 (Received 14 January 1997; accepted 9 October 1997)
About 15 3 106 lbs of paint sludge, produced every year at Ford plants, is disposed of in landfills. An economical alternative to this disposal method, which reclaims or recycles components of paint sludge, is highly desirable to preserve valuable natural resources. Here, we describe an alternative to landfill disposal whereby paint sludge is converted into ceramic composites that can be used as reinforcing materials. The conversion of paint sludge to ceramic composite, IyN2y600, is achieved by pyrolysis under a nitrogen atmosphere. Two additional composites, labeled IyN2y1000 and IyNH3y1000, respectively, are prepared by sintering Iy600 at 1000 ±C under N2 and NH3 . All three composites contain crystalline CaTiO3 , BaTiO3 , TiO2 , amorphous alumina, and carbon. IyNH3y1000 contains an additional crystalline phase of titanium nitride. The application of these composites as reinforcing materials is demonstrated in the fabrication of representative metal matrix composites (MMC’s) and reinforced plastic components.
I. INTRODUCTION
Solid waste is generally landfilled or incinerated in a contained system to prevent the by-products from escaping into the atmosphere.1 In the case of hazardous solid waste, chemical fixation and solidification strategies are used before landfilling.2 The recovery of energy from solid wastes has also been explored along with the additional removal of inorganic oxides from further treatment of the ash.3 These processing options do not attempt to recover the components of solid waste or their by-products due to the difficulty associated with obtaining them in a sufficiently pure form to be reusable.4 While the recycling of metals, newspapers, and soda bottles is common, it is necessary to find means to convert other post-consumer wastes and even some manufacturing waste into usable materials. Postconsumer waste is different from some manufacturing wastes such as scrap glass, metals, or polymers that are a)
Address all correspondence to these authors. J. Mater. Res., Vol. 13, No. 1, Jan 1998
http://journals.cambridge.org
Downloaded: 14 Mar 2015
sufficiently pure and can be mixed with raw materials and recycled. The recycling of ceramics is complic
Data Loading...
