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green liquor pulp physical

PDF 2-1 Recausticizing - Principles and Practice

Raw Green Liquor Stabilization Tank This is an agitated tank designed to have sufficient retention time to even out fluctuations in green liquor temperature and density. Including this tank in the flow sheet can improve the operation of the green liquor clarifier. Figure 3 - Percent free lime versus causticity 0 0.5 1 1.5 2 2.5 3 72 74 76 78 80

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Green Liquor - Welcome to John H. Carter Company

Green liquor is a corrosive fluid that leaves scale deposits on the internal components of control valves, causing the valve to bind and resulting in poor flow control, which …

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Green liquor handling

Valmet offers products that separate dregs from green liquor and increase the efficiency of the recausticizing process. The dregs handling encompasses systems that wash and dewater dregs efficiently with minimal or no mud consumption. Valmet has several green-liquor handling equipment alternatives, which all meet the primary aim, to reduce the dregs content.

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US7291245B2 - Process for causticizing green liquor in

The improved process is achieved by introducing depuration of green liquor and lime before causticization and two special causticization steps in causticization procedure of conventional chemical recovery processes. It not only avoids the generation of waste residue (lime mud) from the beginning and saves the re-burning and filling land of lime mud, but also can directly produce a series of

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Pulp and Paper | Aquadrill

Pulp and Paper You face the problem of cleaning plugged lines and tubes in your mill. As you know the choices are limited – acid cleaning, hydro blasting or replacing lines. We offer you a better way! Our extremely successful Aqua Milling ™ Process allows us to remove your hardest incrustation by effectively milling the interior of your line.

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Kraft Pulp Mill Process | Encyclopedia

Kraft pulp mills produce a fibrous material composed of wood cellulose fibers, constituting the main raw material for papermaking. The kraft process is the dominant technology in the world to produce pulp, allowing the recycling of most of the pulping chemical in two loops, commonly referred to as the sodium cycle and calcium cycle. A third cycle is also relevant to sodium sulphate recovery

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Green Liquor

Green liquor is a corrosive fluid that leaves scale deposits on the internal components of control valves, causing the valve to bind and resulting in poor flow control, which …

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PDF 33 PULP AND PAPER MILLS The two common forms of chemical

fibres, now called pulp or "brown stock," are separated from the spent cooking liquor (black liquor) in the pulp washers. The kraft process is associated with strong-smelling gases - organic sulphides - which are an environmental concern. The dilute or "weak" black liquor (10-15% solids) comes from the washers.

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Product Safety Data Sheets - Packaging, Pulp & Paper

Product Safety Data Sheets. In March 2012 the U.S. Department of Labor’s Occupational Safety and Health Administration (OSHA) updated its Hazard Communication Standard and identified dust, which can be generated from the conversion of pulp, paper and paperboard products, as …

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Green Liquor - Control Southern

Green liquor is a corrosive fluid that leaves scale deposits on the internal components of control valves, causing the valve to bind and resulting in poor flow control, which …

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Chemical Database: Green Liquor (EnvironmentalChemistry.com

Editor's note: Some chemicals in this database contain more information than others due to the original reason this information was collected and how the compilation was accomplished. While working with material safety data sheets (MSDS), I found that manufacturers sometimes used obscure names for constituent chemicals and I didn't always have a good idea of what I was dealing with.

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Green liquor dregs from pulp and paper industry used in

mining waste. Simultaneously, Swedish paper and pulp industry – another important base industry, produces large amounts of alkaline residuals. Green liquor dreg (GLD) is the larg-est residual fraction, approximately 300 000 tonnes/yr is retrieved in the chemical recovery cycle at Swedish sulfate pulp mills.

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Maria Mäkitalo's research works | Luleå University of

Maria Mäkitalo's 9 research works with 90 citations and 464 reads, including: Variation of green liquor dregs from different pulp and paper mills for use in mine waste remediation

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Glossary of Pulp & Paper Terms | Definitions of Paper

Process in green liquor from sulphate (Kraft) pulping is converted to white liquor, thus allowing the cooking chemicals to be re-used. A method in Kraft pulping in which raw material is continuously fed into a continuous digester at one end and the pulp and black liquor are removed from the other end of the digester. Any physical damage

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Green Liquor - Cornerstone Controls

Green liquor is a corrosive fluid that leaves scale deposits on the internal components of control valves, causing the valve to bind and resulting in poor flow control, which …

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PDF Ecologically Friendly Modified Green Liquor Method for

Green liquor and cooking liquor (white liquor mixed with diluted black liquor) used in all of the experiments were obtained from the causticizing industrial kraft pulp mill (MEPPCO), and consisted of 21.08 and 44.64 g/L sodium hydroxide, 19.84 and 9.92 g/L

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The effect of green liquor/anthraquinone-modified kraft

Modified kraft pulping of hard wood for the manufacture of linerboard grade pulp by using green liquor (GL) was investigated. The physical strength of the modified kraft pulp was also quite

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Crossflow filtration of green liquor for increased pulp

Crossflow filtration of green liquor for increased pulp production, improved green liquor quality, and energy savings, TAPPI JOURNAL October 2020 Application: The patented and trademarked CleanFlow system is a technology designed to increase the capacity of a kraft mill recausticizing plant.

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Understanding the Chemical Recovery Processes in Pulp & Paper

Decanted green liquor is transferred to the causticizing area, where the Na2CO3 is converted to NaOH by the addition of lime (calcium oxide [Ca0]). The green liquor is first transferred to a slaker tank, where Ca0 from the lime kiln reacts with water to form calcium hydroxide (Ca (OH)2).

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Green Liquor - Vinson Process

Green liquor is a corrosive fluid that leaves scale deposits on the internal components of control valves, causing the valve to bind and resulting in poor flow control, which …

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