Pulp is a fibrous lignocellulosic material prepared by chemically, semi-chemically or mechanically producing cellulosic fibers from wood, fiber crops, waste paper, or rags. Mixed with water and other chemicals or plant-based additives, pulp is the major raw material used in papermaking and the industrial production of other paper products.
Paper engineering is a branch of engineering that deals with the usage of physical science and life sciences in conjunction with mathematics as applied to the converting of raw materials into useful paper products and co-products. The field applies various principles in process engineering and unit operations to the manufacture of paper, chemicals, energy and related materials. The following timeline shows some of the key steps in the development of the science of chemical and bioprocess engineering:
The International Paper Company is an American pulp and paper company, the largest such company in the world. It has approximately 56,000 employees, and is headquartered in Memphis, Tennessee.
The Weyerhaeuser Company is an American timberland company which owns nearly 12,400,000 acres of timberlands in the U.S., and manages an additional 14,000,000 acres of timberlands under long-term licenses in Canada. The company has manufactured wood products for over a century. It operates as a real estate investment trust (REIT).
Temple-Inland, Inc. was an American corrugated packaging and building products company. It was acquired by International Paper in 2012.
Fiber crops are field crops grown for their fibers, which are traditionally used to make paper, cloth, or rope.
Bagasse is the dry pulpy fibrous material that remains after crushing sugarcane or sorghum stalks to extract their juice. It is used as a biofuel for the production of heat, energy, and electricity, and in the manufacture of pulp and building materials. Agave bagasse is similar, but is the material remnants after extracting blue agave sap.
Tembec Industries Inc., known as Tembec, was a paper company in Canada, founded by Frank Dottori. In 2011, Tembec had approximately 3000 employees, with locations in Canada, United States, and France. Tembec's operating divisions included Forest Products, Pulp, Paper & Paperboard, and Chemicals.
Louisiana-Pacific Corporation (LP) is an American building materials manufacturer. The company was founded in 1973 and LP pioneered the U.S. production of oriented strand board (OSB) panels. Currently based in Nashville, Tennessee, LP is the world's largest producer of OSB and manufactures engineered wood building products. LP products are sold to builders and homeowners through building materials distributors and dealers and retail home centers.
A pulp mill is a manufacturing facility that converts wood chips or other plant fiber sources into a thick fiber board which can be shipped to a paper mill for further processing. Pulp can be manufactured using mechanical, semi-chemical, or fully chemical methods. The finished product may be either bleached or non-bleached, depending on the customer requirements.
Rayonier Inc, headquartered in Wildlight, Florida, is a timberland real estate investment trust ("REIT") with assets located in some of the most productive softwood timber growing regions in the United States and New Zealand. Its core business segments are timber and real estate.
Woodfibre, originally Britannia West, was a pulp mill and at one time a small company town, on the west side of upper Howe Sound near Squamish, British Columbia. The mill closed in March 2006.
A Hollander beater is a machine developed by the Dutch in 1680 to produce paper pulp from cellulose containing plant fibers. It replaced stamp mills for preparing pulp because the Hollander could produce in one day the same quantity of pulp it would take a stamp mill eight days to prepare.
The sulfite process produces wood pulp that is almost pure cellulose fibers by treating wood chips with solutions of sulfite and bisulfite ions. These chemicals cleave the bonds between the cellulose and lignin components of the lignocellulose. A variety of sulfite/bisulfite salts are used, including sodium (Na+), calcium (Ca2+), potassium (K+), magnesium (Mg2+), and ammonium (NH4+). The lignin is converted to lignosulfonates, which are soluble and can be separated from the cellulose fibers. For the production of cellulose, the sulfite process competes with the Kraft process which produces stronger fibers and is less environmentally costly.
The Simpson Investment Company is a company based in McCleary, Washington in the US Pacific Northwest that specializes in manufacture of forest products. Founded as a logging company in 1890 by Sol Simpson, the company now functions as a holding company for the Simpson Door Company, a manufacturer of wood doors.
Nanocellulose is a term referring to nano-structured cellulose. This may be either cellulose nanocrystal, cellulose nanofibers (CNF) also called nanofibrillated cellulose (NFC), or bacterial nanocellulose, which refers to nano-structured cellulose produced by bacteria.
Interfor Corporation is one of the largest lumber producers in the world. The company's sawmilling operations have a combined manufacturing capacity of over 5.2 billion board feet of lumber with sales to North America, Asia-Pacific and Europe. Interfor is based in Vancouver, BC and employs approximately 5200 people. In May 2014, Interfor opened its corporate office for the USA south-east region at Peachtree City, Georgia.
The Herty Advanced Materials Development Center is a research center currently managed by Georgia Southern University. Herty was established in 1938 by the state of Georgia as an applied research center to honor Charles H. Herty, a chemist whose discoveries spearheaded the utilization of southern softwoods in the manufacture of pulp and paper products. In 2012, Georgia governor Nathan Deal transferred management of Herty to Georgia Southern to enhance economic and business development in the State of Georgia.
Hemp paper is a paper variety consisting exclusively or to a large extent from pulp obtained from fibers of industrial hemp. The products are mainly specialty papers such as cigarette paper, banknotes and technical filter papers. Compared to wood pulp, hemp pulp offers a four to five times longer fibre, a significantly lower lignin fraction as well as a higher tear resistance and tensile strength. Because the paper industry's processes have been optimized for wood as the feedstock, production costs currently are much higher than for paper from wood.
Brooks-Scanlon Lumber Company was a lumber products company with large sawmills and significant land holdings in Minnesota, Florida, British Columbia, and Central Oregon. The company was formed in 1901 with its headquarters in Minneapolis, Minnesota. Beginning in 1915, its main lumber production facility was in Bend, Oregon. For many years, its Bend sawmill was one of the largest lumber producers in the world. In 1969, the company created Brooks Resources to broaden its business base beyond timber production. Brooks-Scanlon's Bend sawmill was closed in 1994. Today, Brooks Resources is the only vestige of the company that is still in business.
$1.7 billion USD (2013) [1] 