SE7412884L - - Google Patents

Info

Publication number
SE7412884L
SE7412884L SE7412884A SE7412884A SE7412884L SE 7412884 L SE7412884 L SE 7412884L SE 7412884 A SE7412884 A SE 7412884A SE 7412884 A SE7412884 A SE 7412884A SE 7412884 L SE7412884 L SE 7412884L
Authority
SE
Sweden
Prior art keywords
sodium
carbonate
hydroxide
smelt
pulping
Prior art date
Application number
SE7412884A
Other languages
Unknown language ( )
Other versions
SE412424B (en
Inventor
W E Fisher
Original Assignee
Owens Illinois Inc
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 Owens Illinois Inc filed Critical Owens Illinois Inc
Publication of SE7412884L publication Critical patent/SE7412884L/
Publication of SE412424B publication Critical patent/SE412424B/en

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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/12—Combustion of pulp liquors
    • D21C11/122—Treatment, e.g. dissolution, of the smelt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0006—Controlling or regulating processes
    • B01J19/002—Avoiding undesirable reactions or side-effects, e.g. avoiding explosions, or improving the yield by suppressing side-reactions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00245—Avoiding undesirable reactions or side-effects
    • B01J2219/00259—Preventing runaway of the chemical reaction
    • B01J2219/00263—Preventing explosion of the chemical mixture

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)

Abstract

Lithium hydroxide, potassium hydroxide, lithium carbonate, potassium carbonate, and alkali metal borates or mixtures thereof can be added to the smelt produced by pulping wood with a sodium based liquor containing such compounds as sodium carbonate and sodium hydroxide to lower the melting point and make the smelt softer and more fluid so that when it enters the dissolving tank violent explosions are substantially eliminated. These additives do not interfere with pulping and paper strength is not affected by their use.
SE7412884A 1973-10-15 1974-10-14 VIEW TO IMPROVE MELTING CHARACTERISTICS AND REDUCE EXPLOSIONS IN MELTIZER UNDER CONNECTION OF WOOD WITH SODIUM BASED WETS. SE412424B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US406498A US3873413A (en) 1973-10-15 1973-10-15 Method of improving smelt properties and reducing dissolving tank explosions during pulping of wood with sodium based liquors

Publications (2)

Publication Number Publication Date
SE7412884L true SE7412884L (en) 1975-04-16
SE412424B SE412424B (en) 1980-03-03

Family

ID=23608241

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7412884A SE412424B (en) 1973-10-15 1974-10-14 VIEW TO IMPROVE MELTING CHARACTERISTICS AND REDUCE EXPLOSIONS IN MELTIZER UNDER CONNECTION OF WOOD WITH SODIUM BASED WETS.

Country Status (10)

Country Link
US (1) US3873413A (en)
JP (1) JPS524642B2 (en)
BR (1) BR7408536D0 (en)
CA (1) CA1058357A (en)
DE (1) DE2448891C3 (en)
ES (1) ES430977A1 (en)
FR (1) FR2247576B1 (en)
GB (1) GB1489349A (en)
SE (1) SE412424B (en)
ZA (1) ZA746077B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106978A (en) * 1977-01-31 1978-08-15 Combustion Engineering, Inc. Method of preventing explosions using a smelt water explosion inhibitor
US6348128B1 (en) * 1998-06-01 2002-02-19 U.S. Borax Inc. Method of increasing the causticizing efficiency of alkaline pulping liquor by borate addition
US6294048B1 (en) * 1998-06-01 2001-09-25 U.S. Borax Inc. Method for regenerating sodium hydroxide by partial autocausticizing sodium carbonate containing smelt by reaction with a borate
US20050037226A1 (en) * 2003-08-12 2005-02-17 Peascoe Meisner Roberta A. Alkali resistant refractories
US7735435B2 (en) * 2006-05-24 2010-06-15 Diamond Power International, Inc. Apparatus for cleaning a smelt spout of a combustion device
US7854847B2 (en) * 2006-11-09 2010-12-21 Rayonier Trs Holdings Inc. Process of purifying wood pulp with caustic-borate solution and recovering the purifying chemical

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3447895A (en) * 1966-12-01 1969-06-03 Combustion Eng Method of preventing smelt-water explosions
US3615175A (en) * 1969-03-24 1971-10-26 Combustion Eng Preventing physical explosion due to the interaction of liquid water and molten chemical compounds
US3650889A (en) * 1970-08-03 1972-03-21 Combustion Eng Pollution controlled polysulfide recovery process

Also Published As

Publication number Publication date
FR2247576A1 (en) 1975-05-09
BR7408536D0 (en) 1975-08-05
ZA746077B (en) 1976-04-28
JPS5064502A (en) 1975-05-31
ES430977A1 (en) 1976-10-16
CA1058357A (en) 1979-07-17
DE2448891C3 (en) 1978-04-27
FR2247576B1 (en) 1977-11-10
SE412424B (en) 1980-03-03
GB1489349A (en) 1977-10-19
DE2448891A1 (en) 1975-04-17
US3873413A (en) 1975-03-25
DE2448891B2 (en) 1977-09-01
JPS524642B2 (en) 1977-02-05

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