• Pulp & paper - Kemira

    Paper, a sustainable natural product based on renewable raw materials, has a bright future in a wide variety of applications and end uses. Global megatrends, such as urbanization, digitalization and growing middle class are shaping the pulp and paper industry.

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  • Chemical Reactions: Paper Making – Chemistry

    Jan 21, 2018· How might the reactants or products of the pulp and paper production process affect the health of people living near the plant? In some paper mills, chlorine compounds are used in order to bleach the pulp in preparations for papermaking, however chlorine compounds are rated the most hazardous industrial chemicals in large quantities.

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  • Different Raw Materials Pulp Making For Paper

    Today we talk about different raw materials pulp making for paper. Generally, we use wood pulp for paper making. It is basic raw material for paper making.Some plants are the good raw materials for papermaking. Plants commonly used for pulp making materials are classified into four categories: stem fiber, bast fiber, seed-hair fiber and wood fiber.

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  • What Are the Raw Materials for Paper Pulp Making

    What Are the Raw Materials for Paper Pulp Making What are the raw materials for paper pulp making. Papermaking raw material refers to the raw materials used in the paper making industry. Mainly divided into two categories including plant fiber and non-plant fiber (inorganic fiber, chemical .

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  • Biermann's Handbook of Pulp and Paper | ScienceDirect

    Regardless of the method of making paper, whether by machine or by hand, there are some common steps to papermaking. The raw material is pulped to allow separation of the individual vegetable fibers. The pulp is then washed to remove pulping chemicals. The pulp may then be bleached if it is to be used in white papers.

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  • The Deterioration and Preservation of Paper: Some ...

    Chemical pulping removes lignin and does not cut up the cellulose chains as thoroughly as mechanical pulping, yielding a comparatively stronger paper, but which is still not as durable as rag paper. Wood pulp paper from before the 1980s also tends to be acidic from alum-rosin sizing (added to the paper to reduce absorbency and minimize bleeding ...

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  • Pulping and Papermaking of Non-Wood Fibers | IntechOpen

    Jul 21, 2017· 4.1.7. Bleaching of non-wood pulp. Through chemical action, bleaching can be achieved by the removal of lignin in pulp or changing the structure of chromophoric group. Chemicals used for bleaching cover oxidizing bleach, reductive bleach, sodium hydroxide, chelating agents and enzymes, which can be used alone or in combination.

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  • What Are the Different Raw Materials for Paper? (with ...

    Feb 21, 2021· Many raw materials make up the ingredients for making paper, and common paper-making materials include grass, straw, and wood. The by-product pulp from sugar beets and sugar cane can also be used.Attempting to reduce waste, some paper manufacturers use paper products and textiles. The fibers in these raw materials are held together with a ...

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  • Paper mills as a significant source of PFAS contamination ...

    May 21, 2018· Tom Neltner, J.D., Chemicals Policy Director, and Maricel Maffini, Ph.D., Independent Consultant Update: See June 21, 2018 Q&A blog on PFAS at textile mills and environmental permits. Across the country, communities are grappling with how to manage contamination of drinking water by perfluorinated alkyl substances (PFASs), a class of chemicals widely used in consumer products, .

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  • How Toxic Is Your Toilet Paper? Investigation of Brands

    Apr 16, 2019· Paper manufacturers reach deep into species-rich forests for timber, razing trees, polluting waterways and destroying precious wildlife habitat. Pulp and paper mills that use timber are major generators of hazardous air pollutants, including dioxins and other cancer-causing chemicals.

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  • (PDF) Application of Enzymes in the Pulp and Paper ...

    The use of enzymes in the pulp and paper industry has grown rapidly since the mid 1980s. While many applications of enzymes in the pulp and paper industry are still in the research and development stage, several applications have found their way into the mills in an unprecedented short period of time.

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  • What Are the Raw Materials for Paper Pulp Making

    What Are the Raw Materials for Paper Pulp Making What are the raw materials for paper pulp making. Papermaking raw material refers to the raw materials used in the paper making industry. Mainly divided into two categories including plant fiber and non-plant fiber (inorganic fiber, chemical .

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  • (PDF) Water and Papermaking 2. White Water Components

    Pulp and paper industry is still an intensive water consumer, although fresh water use by this sector has decreased by 90% along the last three decades, which currently shows its long water reuse ...

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  • SSP Pumps in the Pulp and Paper Industry

    - where the black liquor is separated from the pulp. 3. Chemical recovery: - where chemicals are recovered from the black liquor for reuse. Turpentine and tall oil may also be recovered at this stage. Kraft pulping creates dark brown paper, which is used for boxes, paper bags, and wrapping paper.

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  • List of Chemicals Used in Pulp and Paper Making | Bleach ...

    List of Chemicals Used in Pulp and Paper Making - Free download as PDF File (.pdf), Text File (.txt) or read online for free. Chemical contents and useage in Producing paper

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  • Global Pulp and Paper Chemicals Industry - Yahoo

    Pulp and Paper Chemicals market worldwide is projected to grow by US$8.8 Billion, driven by a compounded growth of 3.2%. Bleaching Chemicals, one of .

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  • (PDF) HEALTH HAZARDS OF PULP AND PAPER INDUSTRIALS WORKERS

    To conclude the use of toxic chemicals for pulping and bleaching paper can lead to the pollution that cause negative impacts on the health of paper industry workers. ... The Central Pulp & Paper ...

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  • Paper production process | Fefco

    In the paper mill the pulp is mechanically treated in beaters to improve fibre-to-fibre bonding and the strength of the paper. The pH level of the pulp slurry can be adjusted in some cases to facilitate the paper production. Functional chemicals, fillers and other pulps i.e. recovered paper pulp may also be added to give the final paper the ...

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  • Clean Water Action Council - Paper Industry

    Many toxic chemicals are used in paper making, especially toxic solvents and chlorine compounds used to bleach and delignify pulp. Additional toxins are used as biocides to prevent bacterial growth in the pulp and finished paper products. (In the past, toxic mercury compounds were used as biocides, contributing to Wisconsin's mercury ...

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  • Global Pulp and Paper Chemicals Industry

    Feb 25, 2019· Pulp and Paper Chemicals: Enabling Enhanced Performance, Productivity, Stability, and Cost-Efficiency in Paper Making Major Chemicals Used In Pulp and Paper Manufacturing and Coating

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  • How to Make Paper Pulp: 14 Steps (with Pictures) - wikiHow

    Jul 20, 2019· To make paper pulp, tear the paper into small pieces and soak the pieces in water overnight. Next, break the pieces down with your hands until the pulp reaches the consistency of a thick soup. Then, put the pulp in a blender and pulse it on a high speed for 15-30 seconds until the consistency is as smooth as possible.

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  • Ash in wood, pulp, paper and paperboard: combustion at 525 ...

    Mar 12, 2007· T 211 om-02 Ash in wood, pulp, paper and paperboard: combustion at 525°C / 2 3. Significance 3.1 The ash content of the sample may consist of: (1) various residues from chemicals used in its manufacture, (2) metallic matter from piping and machinery, (3) mineral matter in the pulp from which the paper was

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  • MiniEncy - Nc State University

    Additives and Ingredients, their Composition, Functions, Strategies for Use, and Common Wet-End Chemical Terms. Courtesy of Dr. Lijun Wang and Zhejiang University, Hangzhou, China, PDF files have been created in which the English terms and definitions are all translated into Mandarin Chinese ... Yield of paper pulp

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  • PeroxyChem Evonik: Pulp & Paper Chemical Suppliers

    Pulp & Paper PeroxyChem is a leading supplier of persulfates as repulping aid for paper products containing wet strength resin. Historically, sodium hypochlorite was used to break down wet strength paper products; producing free chlorine which could result in corrosion and organic halide by-products.

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  • A Chemical of Many Uses: Lime in the Pulp and Paper ...

    Sep 14, 2016· The pulp and paper industry integrates different manufacturing and chemical processes to prepare a variety of products essential to modern society. To complete these processes, the industry requires many different compounds for a variety of tasks. One of these is lime. As noted in T 617 – Analysis of lime, "two forms of lime are used in the pulp and paper industry: quicklime or unslaked ...

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  • Optical brightening agents in paper | pulp paper mill

    Apr 06, 2018· Normally the consumers expect higher brightness paper and paper boards. But all the time the brightness of pulp and fillers cannot fulfill the targeted brightness. Therefore the manufactures use different type of optical brightening agents. Most of the paper manufacturers add these chemicals in order to make paper appear brighter.

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  • Around 3000 Chemicals Used in Paper Making Process ...

    3. Paper is used in making domestic products such as tissues, paper plates, paper cups, toilet paper, kitchen towels, table napkins, wallpaper, and lampshades. 4. Paper finds use in special insulating boards, electrolytic condenser paper, wrapping and identification for electrical cables, printed circuits, and battery separators. 5.

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  • Basic Overview of Pulp and Paper Manufacturing Process ...

    Pulp making can be done mechanically or chemically. The pulp is then bleached and further processed, depending on the type and grade of paper that is to be produced. In the paper factory, the pulp is dried and pressed to produce paper sheets. Post-use, an increasing fraction of paper and paper products is .

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  • How Pulp Bleaching Works | Bleaching Paper Pulp – Mixer Direct

    Jun 27, 2019· The various chemicals used in pulp bleaching have their advantages and disadvantages. For example, oxygen is cheap but must be used in high quantities and with expensive equipment. Chlorine dioxide yields high brightness without degrading the pulp, but it must be produced on-site at your pulp and paper mill.

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  • The State of the Paper Industry - Environmental Paper

    ing trees to production of pulp and paper to eventual disposal. It is estimated that 42% of the industrial wood harvest is used to make paper—a sobering fact given that forests store roughly 50 percent of all terrestrial carbon, making them one of our most important safeguards against climate change. Old-growth and mature, second-growth natural

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  • The Pulp and Paper Industry | The Ecology of Industry ...

    The most widely used chemical pulping process in paper making is the sulfate, or kraft, process. It was invented in 1889. In the 1930s, the process was enhanced with chemical recovery. Other chemical-pulping processes (mainly using acid sulfite and soda) are sometimes combined with various chemical-recovery subprocesses.

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Founded in 1982, Dekelon Paper Making Machinery Co.,Ltd. has always striven to meet and exceed customer expectations and continue to update and improve...

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