Institute of Scrap Recycling Industries, Inc.
Scrap Recycling Overview
Crude oil is refined through a
complex distillation process where
chemicals with varying properties
are extracted and separated to create
products such as kerosene, gasoline,
naphtha, paraffin, and asphalt.
Trees, and other fibrous plants, provide the basic raw
material that is processed into paper. It is important
to note that paper is a byproduct of deforestation. As
trees are processed for lumber and fuel, the chips and
sawdust are collected for pulping, which is about 15
percent of the total volume of trees cut down.
Sawdust, wood chips, and other fibrous media are
mechanically or chemically broken down in order to
separate the fibers into a pulp. Mechanical pulping
requires more energy than chemical pulping but
produces higher yields. However, the paper strength
from chemical pulping is higher.
Ore is mined from mineral rich
deposits. Hematite, Bauxite,
Chalcocite, Limonite, and
Galena are examples of ores
used to extract base metals.
Beneficiation is a process
where ores are crushed
and sorted to concentrate
pieces that will have
higher yields when
refined through smelting.
Crude oil and natural gas are extracted
from deposits beneath the ground surface
and seabeds. Oil tanker ships are some of
the largest ships on the open seas. They’re
often as long as the World Trade Center is
tall and several times wider.
Recycling is an
important stage of the
manufacturing process. A
robust recycling system
is a healthy sign that
markets are working
maximizing the value
extracted from natural
resources saves energy,
protects ecosystems, and
maintains the economic
freedom and security of a
nation. But it's important
to understand how these
materials are initially
created from our