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Monday, April 13, 2020 | History

2 edition of Measurement of hydrogen-ion concentration in the control of pulp and paper manufacture ... found in the catalog.

Measurement of hydrogen-ion concentration in the control of pulp and paper manufacture ...

Kurt Walter Franke

Measurement of hydrogen-ion concentration in the control of pulp and paper manufacture ...

  • 310 Want to read
  • 11 Currently reading

Published by Mack printing co. in Easton, Pa .
Written in English

    Subjects:
  • Paper making and trade.,
  • Electrolysis.

  • Edition Notes

    Other titlesHydrogen-ion concentration.
    Statementby Kurt Walter Franke ...
    Classifications
    LC ClassificationsTS1109 .F7 1927
    The Physical Object
    Pagination24 p., 1 l.
    Number of Pages24
    ID Numbers
    Open LibraryOL6717885M
    LC Control Number28019401
    OCLC/WorldCa29812881

    Determines the hot and cold water soluble materials in wood and pulp. Determines the cold water solubility, wood or pulp is extracted with reagent grade water at 23 ± 2 ° c with stirring for 48 h. Determination of hot water solubility, wood or pulp is extracted with reagent grade water under reflux in a boiling water bath for 3 h. pH, commonly used for water measurements, is a measure of acidity and alkalinity, or the caustic and base present in a given solution. It is generally expressed with a numeric scale ranging from The value 7 represents neutrality. The numbers on the scale increase with increasing alkalinity, while the numbers on the scale decrease with. Hydrogen ion concentration as pH from measureents m made at the Central Analytical Laboratory, Sites not pictured: Alaska 01 Alaska 03 Virgin Islands 01 ≥ ≤ Title: pH_00 Created Date: 1/5/ PM. pH is an expression of hydrogen ion concentration in water. Specifically, pH is the negative logarithm of hydrogen ion (H +) concentration (mol/L) in an aqueous solution: pH = -log 10 (H +) The term is used to indicate basicity or acidity of a solution on a scale of 0 to 14, with pH 7 being neutral.

    A pH of 5 has times the concentration of hydrogen ions than a solution at pH 7. pH 4 is times, and a pH of 3 times the hydrogen ion concentration. In this imperfect example of measuring pH in terms of distance, where you are right now is considered pH 7, neutral.


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Measurement of hydrogen-ion concentration in the control of pulp and paper manufacture ... by Kurt Walter Franke Download PDF EPUB FB2

Hydrogen ion concentration (pH) of paper extracts (cold extraction method), Test Method T om Please Note: This document will be available in PDF format in the "My Electronic Documents" link on the home page once your order has been completed.

pH is mathematically defined as the negative common logarithm of active hydrogen ion concentration in a solution. Hydrogen ion concentration is expressed as a molarity (number of moles of ions per liter of total liquid solution volume), with “pH” being the unit of measurement for the logarithmic result: \[\hbox{pH} = - \log [\hbox{H Author: Tony R.

Kuphaldt. This method measures the hydrogen ion concentration, expressed in terms of pH, of an aqueous extract of paper obtained by hot extraction (unfiltered and extracted by boiling water for one hour).

It may be applied to writing, printing and sized industrial paper, but it is not intended for unbuffered types such as electrical insulating and.

This chapter presents various types of pulping calculations. Chemical concentration is a measure of the concentration of the pulping chemical in the liquor. The chemical charge is a measure of the weight of chemical used to process a material.

For example, kraft pulping is carried out with about 25% total alkali on wood. A simple and rapid procedure for the determination of the pH value of papers is described. The paper is mixed with water, and after letting it stand for 1 is usually three to four times the hydrogen-ion concentration of the cold paper-water mixtures.

No advantage of using hoi the Pulp and Paper Industry.4 Grinding of the paper was further. analysis of the effects of environmental regulation on pulp and paper industry structure Article (PDF Available) February with 48 Reads How we measure 'reads'.

Measurement of hydrogen ion concentration (p h) 1. Chapter 10 Measurement of hydrogen ion concentration (pH) 1. General pH is a way of expressing the hydrogen ion concentration in water.

It is related to the acidic or alkaline nature of water. Consideration of hydrogen ion concentration is important in almost all uses of water.

Pulp Paper Science 28 (10) (). 1 Charge Properties of Fibers in the Paper Mill Environment. Effect of Electrical Conductivity F. Wang and M. Hubbe F. Wang and M. Hubbe Dept. of Wood & Paper Science North Carolina State University Box Raleigh, NC pH equals the inverse of the logarithm to the base 10 of the hydrogen ion activity 2) as shown by the formula: pH = log aH + = pH 3) (2) The activity of the hydrogen ions is not always linear with the concentration, since Measurement of hydrogen-ion concentration in the control of pulp and paper manufacture.

book activity is not only affected by the concentration of. The microbial issues in paper mill systems, chemistry of deposits on paper machines, the strategies for deposit control and methods used for the analysis of biofouling are all dealt in this book Author: Pratima Bajpai.

At pH of 7, the hydrogen-ion concentration is equal to the hydroxyl-ion concentration and the liquid is neutral, as with pure water. Above pH 7, the hydroxyl-ion concentration increases by a factor of 10 with each pH unit; thus, the hydroxyl-ion concentration at pH 11 is ten times that at pH 10 (hydrogen-ion concentration is one-tenth).

Paper plays a key role in our daily life and papers have been used for many years from now. Papers are made with the pulp of the woods, which is an Eco-friendly product. Paper is made through the following processes: 1) Pulping procedure will be done to separate and clean the fibers.

2) Refining procedure will be followed after pulping processes. Valmet provides unique automation solutions for pulp, paper, tissue, energy, marine, and process industries.

Our customers repeatably report improved results in performance, efficiency, quality, cost savings, and enhanced sustainability - just to mention a few. The standard range of measurement is 0 pH to 14 pH, the number representing a negative power of 10 approximately describing the hydrogen ion molarity of the solution (how many moles of active hydrogen ions per liter of solution).Author: Tony R.

Kuphaldt. Pulp is a lignocellulosic fibrous material prepared by chemically or mechanically separating cellulose fibers from wood, fiber crops, waste paper, or with water and other chemical or plant-based additives, pulp is the major raw material used in papermaking and the industrial production of other paper Pulp category: Production [M ton].

This method serves as an alternative to TAPPI T “Hydrogen Ion Concentration (pH) of Paper Extracts - Cold Extraction Method,” and TAPPI T “Hydrogen Ion Concentration (pH) of Paper Extracts - Hot Extraction Method,” because it avoids the destruction of printed material in the determination of the permanence expected for paper (see also.

Thanks to accurate pH control it is possible to: manufacture a product with defined attributes produce a product at low cost prevent damage to the environment, materials and humans satisfy legal regulations gain further knowledge in research Table 1: pH scale range pH H+ concentration (mol/L) OH-concentration (mol/L) 0 1 0, The pulp and paper industry consumes a significative amount of water and energy and produces wastewater with a high concentration of COD; recent studies underline as an appropriate pre-treatment of the wastewater (e.g.

the coagulation) is cost-effective solution for the removal of COD and the reduction of the pressures on the aquatic environment. All about paper Manufacturing: Paper Making Process Industry and businesses provide almost half the amount of recovered paper in the form of cuttings/shavings Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising.

Aimed at the concentration of black liquor can not be measured online, this paper used data fitting method to established the concentration of black liquor's soft-sensing mathematical model, realized its online measurement, and used it in the concentration of black liquor's control successfully and achieved good control effect.

Practice has proved that this measurement method is practicable. Standard Test Methods for Hydrogen Ion Concentration (pH) of Paper Extracts (Hot-Extraction and Cold-Extraction Procedures)1 This standard is issued under the fixed designation D ; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.

Effect of Consistency The consistency of the pulp has noticeable effects on the reaction rate during hydrogen peroxide bleaching.

High consistency can reduce reaction time and effectiveness of the bleaching. It is also economical. At first, most of the bleaching plant installed lower consistency (3. pH (Hydrogen Ion Concentration) A measure of the acidity (or alkalinity) of a solution.

Range from with 7 being neutral, less than 7 being acid; higher than 7 being alkaline. Photodegradable A material which undergoes destruction of its chemical structure when exposed to light.

Hot water extractable of paper, T Hydrogen ion concentration of paper extracts (cold extraction method), T Hydrogen ion concentration of paper extracts (hot extraction method), T Paper as calcium carbonate (alkaline reserve), T Sodium silicate, T Alpha-cellulose.

In paper, T In pulp, T Alumina. see Aluminum oxideFile Size: KB. Comprehensive analysis of individual pulp fiber bonds quantifies the mechanisms of fiber bonding in paper from the measurement this leads to × 10 −18 of bonding between paper Cited by:   Hydrogen Ion Concentration (pH) The pH value of the paperboard shall be between and when tested according to TAPPI Tom Abrasion Outer surfaces of the paperboard shall show a loss of less than percent of the total weight (mounting card and sample) when tested with #CS 10 wheel and wear cycles (TAPPI Tom).

Pulp & Paper. Cement Waste Incineration. CEMS Techniques and Technologies Overview. • Therefore the concentration of compounds can be measured • SO3 / H2SO4 measurements • Boiler Control • CO CEMS Analyzer or NDIR Multi-GasFile Size: 1MB.

The acidity or alkalinity, hydrogen-ion concentration, of a solution is given in terms of the pH. For convenience the negative exponent of the hydrogen ion concentration is used to express the amount of hydrogen ions present: For example: If a solution has a hydrogen-ion concentration of 1/, or 10~5, the pH value is Hydrogen ion concentration control (PE) Wire diameter recording (Osc.) Paper break detection, manufacture, presses (PE) Bag piling by conveyors (PE) Feed to rubber -cutting table (PE) Pulp control in paper mill (PE) 2 January, - ELECTRONICS 1.

pH measurement reveals the hydrogen ion concentration in water. It is used to determine both the deposition and corrosion tendency of a water.

The most widely used type of pH measurement is the electrode method. The assembly in Figure shows the necessary elements that make up a typical pH sensor: a glass pH electrode, a reference cell, a.

Yield of paper pulp: The ratio of pulp solid mass to the solid mass of the original wood that it was derived from. High-yield pulps are produced by mechanical refining or grinding.

Kraft pulps are relatively "low yield". Z-direction: The direction perpendicular to the plane of a sheet of paper: Zeta potential. The methods currently used to measure moisture in paper pulp are mostly intrusive [], or require certain special operating conditions.

Several patents [13,14] have proposed using an electromagnetic field perturbation sensor for measuring the water concentration in the wet end of the paper machine.

ASTM-D - Standard Test Methods for Hydrogen Ion Concentration (pH) of Paper Extracts (Hot-Extraction and Cold-Extraction Procedures) (Withdrawn ) ASTM-D - Standard Test Method for Determining the Water Vapor Resistance of Sheet Materials in Contact with Liquid Water by the Dry Indicator Method.

We have already seen that a hydrogen ion concentration of moles/l can be expressed as [], an expression which defines both the unit of measurement and the numerical value.

The concept of pH is a further abbreviation which expresses the concentration of hydrogen ions as the negative log of the hydrogen ion concentration in units of.

Hydrogen ion concentration (pH) of paper extracts (cold extraction method), T Hydrogen ion concentration (pH) of paper extracts (hot extraction method), T pH and electrical conductivity of hot water extracts of pulp, paper, and paperboard, T Surface pH measurement of paper.

McGill "Measurement and Control in Papermaking"; Adam Hilger Ltd, Bristol p. MacDonald et al. "Pulp and Paper Manufacture, Vol. II"; McGraw Hill Book Company, Sect. hemicellulases and mixtures thereof using a concentration of said enzyme suitable to thereby obtain a lowering of the SR degree and improve.

Product Details. Procedure provides for the extraction of pulp, paper, and paperboard samples using boiling reagent water.; Followed by determination of the ph and conductivity of the extract.; pH measurement of the extract indicates presence of either acidic or basic ions which could contribute to potential degradation of the cellulose in the end product.

Practical Aspects of Deacidification: pH and Alkaline Reserve by George B. Kelly, Jr. The pulp sample used for the pH measurement was titrated using N hydrochloric acid for samples with a pH above or with N sodium hydroxide for samples with a pH below Hydrogen ion concentration (pH) of paper extracts--Cold.

This is the third of ten volumes in the Pulp and Paper Manufacture Series, published by the Joint Textbook Committee of the Paper Industry.

The book's 21 chapters are divided into two parts. The text features numerous tables, charts, and illustrations, in addition to extensive references and a complete subject index. pages, hard cover. Pulp and paper: chemistry and chemical technology Volume 2 of Pulp and Paper Pulp and Paper: Chemistry and Chemical Technology, James P.

Casey Wiley-Interscience publication Volume 2 of Pulp & Paper Vol. 2: Author: James P. Casey: Editor: James P. Casey: Edition: 3, illustrated: Publisher: Wiley, Original from: University of Minnesota Reviews: 1. Bagasse is used as a raw material in paper and pulp industry after drying in the manufac­ture of paper, paperboard, paper bag, carton, etc.

Bagasse can produce tons paper per ton Bagasse. It finds use in the manufacture of briquettes. Recent technology is to utilize the Bagasse as adsorbent and it .Note five things about this chart. 1. As the acid (H 3 O +) concentration decreases, the pH increases.

2. As the acid (H 3 O +) concentration decreases, the base (OH –) concentration increases proportionately. 3. At pH 7 the acid (H 3 O +) and base (OH –) concentrations are is called the neutral point. 4. The pH scale represents the number of places the decimal point is.stand-alone pulp facilities), manufacture pulp and paper (i.e., integrated facilities), produce paper products from purchased pulp, produce secondary fiber from recycled paper, convert paper into paperboard products (e.g., containers), or operate coating and laminating processes (40 CFR §).

Wastewater treatment for the pulp and paper.