Pulp Industry
Found 11 free book(s)
Environmental Impact of Paper Industry
www.ijert.orgWorldwide, the pulp and paper industry is the fifth largest consumer of energy, accounting for four percent of all the world's energy use. The pulp and paper industry uses more water to produce a ton of product than any other industry. The pulp from trees itself is burnt to produce energy required for production of paper.
01. Paper Industry - NITE
www.nite.go.jpMechanical pulp is classified into RGP (refiner groundwood pulp), GP (ground pulp), and TMP (thermo mechanical pulp) according to manufacturing methods. We explain a typical example of RGP below. RGP was introduced as a mechanical pulp manufacturing method from the viewpoint of effectively utilizing resources. It uses refiners to process wood chips
Chapter 8. Pulp and Paper - Rural Tech
www.ruraltech.orgin chemical recovery and pulp strength, the kraft process dominates the industry. It represents 91% of chemical pulping and 75% of all pulp (Appendix 2, Section G). It evolved from an earlier soda process (using only sodium hydroxide as the active chem-ical) and adds sodium sulfide to the cooking chemical formulation. This is the process associated
The Chlor-Alkali Industry
www1.eere.energy.govsodium hydroxide production is used by the pulp and paper industry for pulping wood chips and for other processes. Sodium hydroxide is also used to manufacture soap and cleaning products, and as drilling fluid for oil and gas extraction (CHEMX 1999, Orica 1999). Soda ash is used primarily by the glass industry as a flux to reduce the melting ...
The Global Paper Market Current Review
pgpaper.comThe pulp and paper industry is faced with mounting environmental, political, and economic pressures to reduce the volume and toxicity of its industrial wastewater. During the last few years, the concept of system closure has been gaining popularity in the forest products industry for the following reasons:
24.Corrugated Packaging Industry
www.nite.go.jpand Industry - Classification Table for Paperboard Types. Table 1 Extracted from the Classification Table for Paperboard Types Paperboard Type Description of Cardboard Types Containerboard Linerboard *1 Kraft Linerboard Containerboard made primarily from kraft pulp, that is used for the top and bottom surfaces of corrugated boards.
U.S. PULP AND PAPER MILLS ONLINE DATABASE
www.paperstudies.orgThis database contains information on 655 U.S. mills. (310 pulp mills and pulp & paper mills, and 345 mills producing only paper). Entry Information: • Type of mill: pulp and pulp & paper, or paper only • Mill location: city, state • Mill owner (corporation owning the mill + …
The Pulp and Paper Making Processes
www.princeton.eduTHE PULP AND PAPER MILL Although there are several chemical and mechani-cal pulping methods used for delignifying wood (table 2-l), separating fibers, and removing discol-oration, all integrated pulp and paper mills involve the same general steps in the manufacture of pulp and paper. These steps include: 1 ) raw material
10.2 Chemical Wood Pulping
www3.epa.govchemical pulp produced in the United States. The choice of pulping process is determined by the desired product, by the wood species available, and by economic considerations. 10.2.2 Kraft Pulping 10.2.2.1 Process Description1-The kraft pulping process (see Figure 10.2-1) involves the digesting of wood chips at elevated
Alfa Laval – decanter centrifuge technology
www.alfalaval.comable to meet industry’s needs for more rapid, controllable results. The idea behind the development of the decanter centrifuge was therefore to provide the continuous mechanical separation of liquids from solids, to keep pace with modern industrial demands. In essence, a centrifuge is a clarifier whose base is wrapped around a
Water absorptiveness of sized (non-bibulous) paper ...
www.tappi.orgT 205. The blotters shall be white, produced from fully bleached chemical pulp free of any additives. They shall be flat, uniform, and free of wrinkles and dirt. 200-250 g/m2 (123 - 154 lb/3000 ft 2), with a capillary rise of 50 −100 mm (2 - 4 in.) of water (mean of MD + CD) as measured by the Klemm method (ISO 8787).