CA998502A - Process for determining alkali content in alkaline pulping liquor using the heat of partial neutralization of the pulping liquor - Google Patents

Process for determining alkali content in alkaline pulping liquor using the heat of partial neutralization of the pulping liquor

Info

Publication number
CA998502A
CA998502A CA175,965A CA175965A CA998502A CA 998502 A CA998502 A CA 998502A CA 175965 A CA175965 A CA 175965A CA 998502 A CA998502 A CA 998502A
Authority
CA
Canada
Prior art keywords
pulping liquor
heat
alkali content
partial neutralization
alkaline
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA175,965A
Other languages
English (en)
Other versions
CA175965S (en
Inventor
Bengt G. Hultman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mo och Domsjo AB
Original Assignee
Mo och Domsjo AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mo och Domsjo AB filed Critical Mo och Domsjo AB
Application granted granted Critical
Publication of CA998502A publication Critical patent/CA998502A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/228—Automation of the pulping processes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
    • G01N25/48—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on solution, sorption, or a chemical reaction not involving combustion or catalytic oxidation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Paper (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
CA175,965A 1972-07-14 1973-07-09 Process for determining alkali content in alkaline pulping liquor using the heat of partial neutralization of the pulping liquor Expired CA998502A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7209342A SE377348B (sv) 1972-07-14 1972-07-14

Publications (1)

Publication Number Publication Date
CA998502A true CA998502A (en) 1976-10-19

Family

ID=20276435

Family Applications (1)

Application Number Title Priority Date Filing Date
CA175,965A Expired CA998502A (en) 1972-07-14 1973-07-09 Process for determining alkali content in alkaline pulping liquor using the heat of partial neutralization of the pulping liquor

Country Status (8)

Country Link
US (1) US3888726A (sv)
JP (1) JPS5140162B2 (sv)
BR (1) BR7305271D0 (sv)
CA (1) CA998502A (sv)
FI (1) FI54344C (sv)
FR (1) FR2193116B1 (sv)
SE (1) SE377348B (sv)
ZA (1) ZA734424B (sv)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941649A (en) * 1972-07-14 1976-03-02 Mo Och Domsjo Aktiebolag Process for obtaining a predetermined Kappa number in sulfate pulping
US4192708A (en) * 1974-09-05 1980-03-11 Mo Och Domsjo Aktiebolag Method for controlling the addition of active chemical for delignifying and/or bleaching cellulose pulp suspended in a liquor containing chemicals reactive with the delignifying and/or bleaching chemical
US4012197A (en) * 1975-11-07 1977-03-15 Measurex Corporation Titration apparatus and method therefor
US4042328A (en) * 1976-04-06 1977-08-16 Seymour George W On-line analyzer
SE406944B (sv) * 1976-04-14 1979-03-05 Mo Och Domsjoe Ab Forfarande for att reglera tillsatsen av suspensinsvetska vid kontinuerlig tvettning av suspensioner
JPS5340588A (en) * 1976-09-11 1978-04-13 Dowa Mining Co Method of and instrument for measuring amount of base in basic aluminium sulphate solution
FR2364448A1 (fr) * 1976-09-13 1978-04-07 Commissariat Energie Atomique Dispositif d'analyse d'echantillons par mesure du flux de chaleur libere lors de la mise en contact de chacun des echantillons avec un reactif
SE8000434L (sv) * 1980-01-18 1981-07-19 Kaelle Eur Control Forfarande och anordning for bestemning av ligninhalten i massa
FI75615C (sv) * 1985-11-29 1991-08-26 Ahlstroem Oy Förfarande för sänkning av svartlutens viskositet
FI80526C (sv) * 1986-09-08 1990-06-11 Savcor Consulting Oy Förfarande för styrning av cellulosakok
US4846584A (en) * 1987-12-17 1989-07-11 Pennwalt Corporation Automated calorimeter and methods of operating the same
US5456799A (en) * 1989-01-19 1995-10-10 Mo Och Domsjo Aktiebolag Method for controlling activation of lignocellulosic material in the presence of a nitrate containing liquid
US6606901B1 (en) * 1999-09-02 2003-08-19 Teijin Twaron B.V. Process for determining the acidity of a washing solution for fibers
WO2012003553A1 (en) * 2010-07-08 2012-01-12 Katholieke Universiteit Leuven Adiabatic scanning calorimeter

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2891401A (en) * 1954-03-03 1959-06-23 Exxon Research Engineering Co Method for testing the concentration of sulfuric acid used for catalyzing reactions
US3160477A (en) * 1962-01-29 1964-12-08 American Insutrument Company I Thermometric titrating apparatus
US3276843A (en) * 1963-02-27 1966-10-04 Phillips Petroleum Co Thermometric analysis method and apparatus for control of catalytic reactions
US3553075A (en) * 1968-04-01 1971-01-05 Calgon Corp Method for controlling the hydroxide ion concentration in pulp digestion liquor
US3646812A (en) * 1968-08-26 1972-03-07 Teruji Ishii Apparatus and method for automatic quantitative analysis of substances by slight enthalpimetric difference
US3726644A (en) * 1970-02-24 1973-04-10 Univ Sherbrooke Flow calorimeter

Also Published As

Publication number Publication date
FI54344B (fi) 1978-07-31
JPS5140162B2 (sv) 1976-11-01
ZA734424B (en) 1974-03-27
JPS4957101A (sv) 1974-06-03
BR7305271D0 (pt) 1974-09-05
SE377348B (sv) 1975-06-30
FR2193116B1 (sv) 1976-05-07
FR2193116A1 (sv) 1974-02-15
FI54344C (fi) 1978-11-10
US3888726A (en) 1975-06-10

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