Shred Shredding

Shredding shred-, esp Southern sred- shredded shredding (before 12c) v. The separation of compressed fibers in pulp sheets prior to acetylation in acetate manufacture. 

The composition of nonmetal residues produced in shredding automobiles is summarized in Table 3. 

The blanket of alk-ceU leaving the slurry press is shredded, and if necessary cooled, before being conveyed to mercerizing (the ripening or aging process). 

Another common system is the fixed knife mill. This consists of a chamber containing fixed knives and a rotating three-armed spider that shreds the fmit by forcing them against the fixed knives. Fmit are gravity fed into the chamber from an opening in the top. Small holes under the knives permit the mash to fall through to a conveyor. 

Properties. Limited data are available for the types or grades of commercial agar which is usually in the form of chopped shreds, sheets, flakes, granules, or powder. The official specifications for agar are provided in the USP (12) and the Food Chemicals Codex (13). 

Total merchant shipments of DRI and HBI in 1993 reached 5.1 x 10 t. The primary DRI exporting countries were Venezuela, Russia, Malaysia, Trinidad, and India. The price of merchant HBI in 1993 was in the range of 125 to 167/1 on a deUvered basis. Although there are expectations that the value of merchant DRI should some day stand on its own, the historic price has been tied to the price of ferrous scrap. A general mle of thumb has been that the value of merchant DRI is comparable to prime scrap (No. 1 Bundles or No. 1 Bushelings) in industrial countries, and comparable to imported shredded scrap in developing countries (see RECYCLING, FERROUS METALS). 

Cementation. A metal can be removed from solution by displacing it with a mote active metal. This simple, inexpensive method has been commonly used to recover copper from dilute (1—3 kg/m ) solution using shredded iron and de-tinned iron cans as reducing agent. 

Recovery from waste begins with pulveri2ation of brittle forms, shredding of storage batteries and mixing with other powdery forms such as spent... 

Destroying trade secret information by means that will prevent its disclosure, eg, incineration or shredding. 

Some common flake-shaped LCMs consist of shredded cellophane and paper, mica (qv), rice hulls, cottonseed hulls, or laminated plastic. These materials He flat across the opening to be sealed or are wedged into an opening such as a fracture. Some are sufficiently strong to withstand considerable differential pressure, whereas others are weak and the seal may be broken easily. Weaker flake materials typically are used near the surface or in combination with fibrous or granular additives. 

Sepa.ra.tedRecyclables. Even when initial separation of recyclables takes place at the household level, the separated materials stiU requite some preparation before being sent to market. By visually inspecting materials, facihty processors are able to remove any remaining contaminants. This ensures that recyclables will be of sufficient quahty to meet buyer specifications. In addition, materials are often shredded, cmshed, or baled to facihtate cost-effective shipping. 

Shredding operations may also include apphances (white goods) which are being recycled in increasing quantities at least partiy because of the banning of apphances from landfills in many states. The recycling rate for apphances in 1994 was 70% compared to 62% in 1993 when 1.4 million t of ferrous scrap was recovered from 36 million apphances. The recycling rate was 55% in 1992 (10,11). 

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