paper pulping

With today’s increasingly high energy and chemical costs and stringent environmental regulations, the need for improved recovery of chemicals from the pulp and paper making process has become a critical economic factor in the industry. It is essential that mills maximize steam and power production...

The Notices on the Use of Recycled Fiber Wood is the main raw material for papermaking. However, with the decrease of forest resources and the increase of human demand, the wood problem has become more and more serious. To solve the dilemma from the lack of...

The Category, Application and Property Index of Paper Pulp Paper pulp is the basic raw material of paper making. It is processed and manufactured by paper pulper. The materials used for paper pulp making can be divided into four kinds: stem fiber, bast fiber, hull fiber...

Production Process of Dissolving Pulp There are two kinds of production processes of dissolving pulp: sulfate pre-hydrolysis process and sulfite process. Generally, the acid sulfite process can be applied to low content hemi-cellulose of raw material; for high content resin of raw material, the sulfate pre-hydrolysis...

In the papermaking industry the pulping process is an important technology. When talking about it, we have to start from pulp. Generally, pulp can be classified into two main types: chemical pulp and mechanical pulp. Surely, still there are other types of pulp actually. Here we...

On mechanical pulping process, the wood fibers are separated from each other by mechanical energy applied to the wood matrix causing the bonds between the fibers to break gradually and fiber bundles, single fibers and fiber fragments to be released. It is the mixture of...

The history of paper making derives from the ancient Egypt, the Egyptians made paper from reeds. Using cotton and linen fibers to make paper spreads to Europe in the 13th century, and people become more and more likely to make rag paper by using fabric,...

Paper pulp is a lignocellulosic fibrous material made from plant fiber by different processing method, such as chemically or mechanically separating ways. The raw plant fiber material can be classified into wood, fiber crops or waste paper. Paper pulp can be classified into mechanical wood-pulp,...

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