MY104532A - A process for the preparation of cooking liquors having high sulphidity for sulphate pulp cooking - Google Patents

A process for the preparation of cooking liquors having high sulphidity for sulphate pulp cooking

Info

Publication number
MY104532A
MY104532A MYPI90002045A MYPI19902045A MY104532A MY 104532 A MY104532 A MY 104532A MY PI90002045 A MYPI90002045 A MY PI90002045A MY PI19902045 A MYPI19902045 A MY PI19902045A MY 104532 A MY104532 A MY 104532A
Authority
MY
Malaysia
Prior art keywords
cooking
sulphur
fed
reactor
preparation
Prior art date
Application number
MYPI90002045A
Inventor
Lindberg Hans
Hedblom Mats-Olov
Original Assignee
Chemrec 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 Chemrec Ab filed Critical Chemrec Ab
Publication of MY104532A publication Critical patent/MY104532A/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • 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
    • D21C11/04—Regeneration of pulp liquors or effluent waste waters of alkali lye

Landscapes

  • Paper (AREA)
  • Commercial Cooking Devices (AREA)

Abstract

THE INVENTION RELATES TO A PROCESS FOR PREPARATION, UNDER REDUCING CONDITIONS, OF COOKING LIQUORS HAVING HIGH SULPHIDITY FOR SULPHATE PULP COOKING, WHEREIN THE BLACK LIQUOR OBTAINED IN THE COOKING PROCESS IS FED, AFTER EVAPORATION,COMPLETELY OR PARTLY TO A REACTOR OPERATING A INCREASED TEMPERATURE WHICH IS OBTAINED BY ENERGY SUPPLY FROM AN EXTERNAL HEAT SOURCE AND/OR RELEASE OF ENERGY FROM THE BLACK LIQUOR, A MELT ESSENTIALLY CONSISTING OF SODIUM SULPHIDE BEING FORMED AND WITHDRAWN TO BE FURTHER PROCESSED TO COOKING LIQUOR. THE PROCESS OF THE INVENTION IS CHARACTERIZED IN THAT IN ADDITION THERE ARE FED TO THE REACTOR THE WHOLE OR PART OF SULPHUR- CONTAINING MATERIALS PRESENT IN THE PULP MILL, INCLUDING SULPHUR- CONTAINING MAKE- UP CHEMICALS USED FOR THE TOTAL CHEMICALS BALANCE OF THE PULP MILL,IN SUCH A WAY THAT THE MOLE RATIO OF SODIUM TO SULPHUR IN THE TOTAL MIXTURE FED TO THE REACTOR IS WITHIN THE RANGE OF 1.5 TO 4.ACCORDING TO A PREFERRED EMBODIMENT OF THE INVENTION THERE IS USED AN AQUEOUS SOLUTION OF THE SODIUM SULPHIDE MELT OBTAINED IN SO- CALLED MODIFIED SULPHATE COOKING.
MYPI90002045A 1989-11-23 1990-11-21 A process for the preparation of cooking liquors having high sulphidity for sulphate pulp cooking MY104532A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8903953A SE465039B (en) 1989-11-23 1989-11-23 MADE TO MAKE SUBSTANCES WITH HIGH SULFIDITY BEFORE SULFAT PREPARATION

Publications (1)

Publication Number Publication Date
MY104532A true MY104532A (en) 1994-04-30

Family

ID=20377574

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI90002045A MY104532A (en) 1989-11-23 1990-11-21 A process for the preparation of cooking liquors having high sulphidity for sulphate pulp cooking

Country Status (18)

Country Link
EP (1) EP0502052B1 (en)
JP (1) JP2815701B2 (en)
CN (1) CN1030003C (en)
AR (1) AR243947A1 (en)
AT (1) ATE112595T1 (en)
AU (1) AU662882B2 (en)
BR (1) BR9007837A (en)
CA (1) CA2069107C (en)
DE (1) DE69013159T2 (en)
ES (1) ES2062569T3 (en)
FI (1) FI103902B1 (en)
MX (1) MX173408B (en)
MY (1) MY104532A (en)
NO (1) NO176109C (en)
RU (1) RU2067637C1 (en)
SE (1) SE465039B (en)
WO (1) WO1991008337A1 (en)
ZA (1) ZA909337B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5326433A (en) * 1991-02-06 1994-07-05 Ahlstrom Recovery Inc. Multi-level sulfide content white liquor production and utilization in cellulose pulping
US5213663A (en) * 1991-07-22 1993-05-25 The Foxboro Company Method for controlling the sodium carbonate concentration of green liquor in the dissolving tank
FI92725C (en) * 1991-09-09 1994-12-27 Ahlstroem Oy Process for preparing boiling liquid
FI914586A (en) * 1991-09-27 1993-03-28 Ahlstroem Oy FOERFARANDE FOER FOERMINSKNING AV ASKLASTEN AV EN CELLUFABRIKS PANNANLAEGGNING
SE468600B (en) * 1991-12-16 1993-02-15 Chemrec Ab SET TO MAKE HIGH SULFIDITY COOKIES
SE9300199L (en) * 1993-01-25 1994-07-26 Kvaerner Pulping Tech Method for recycling cellulosic liquids
US6030493A (en) 1994-11-04 2000-02-29 Kvaerner Pulping, Ab Process for recovering chemicals and energy from cellulose spent liquor using multiple gasifiers
SE518735C2 (en) * 1999-10-13 2002-11-12 Chemrec Ab Process and apparatus for the extraction of chemicals in connection with gasification of residues from pulp production
CN1087045C (en) * 2000-03-17 2002-07-03 中国科学院生态环境研究中心 Cyclic process for treating black paper-making liquid of alkali pulping to recover useful resource
CL2010001609A1 (en) * 2010-12-29 2011-03-18 Univ De Concepcion 50% Process for obtaining tall oil util that comprises the reaction between a solution of sodium sesquisulfate and tall oil soap.
CN103510418B (en) * 2012-06-25 2016-03-30 北京英力生科新材料技术有限公司 A kind of without black liquor chemical pulping process
CN103726376A (en) * 2013-12-30 2014-04-16 中冶美利纸业股份有限公司 Intermittent low-temperature quick pulping process for broad-leaf wood
CN103726375A (en) * 2013-12-30 2014-04-16 中冶美利纸业股份有限公司 Sulfite pulping process of salix mongolica
FI130066B (en) * 2019-02-13 2023-01-31 Andritz Oy A method of replacing sodium losses in a pulp mill, and a method of producing bleached cellulosic pulp

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4098639A (en) * 1975-06-17 1978-07-04 Mo Och Domsjo Aktiebolag Process for reducing the requirement of fresh chemicals without increasing emissions in the pulping of cellulosic material
SE447400B (en) * 1985-03-26 1986-11-10 Skf Steel Eng Ab SET AND DEVICE FOR CHEMICAL EQUIPMENT OF MASS WASTE IN CONVENTIONAL SODAPANNA
IL80678A (en) * 1985-11-19 1999-05-09 Schering Biotech Corp Human interleukin-4
JPS62166881A (en) * 1986-01-16 1987-07-23 Michio Matsuhashi Periplasmic protein-secreting variant strain of escherichia coli
AU589540B2 (en) * 1986-08-14 1989-10-12 Alby Klorat Ab A process for the preparation of sulphide-free alkali liquor
JPS63237790A (en) * 1987-03-27 1988-10-04 Toyo Jozo Co Ltd Human superoxide dimustase using ompa signal peptide and extracellular secretion by gram negative bacterium

Also Published As

Publication number Publication date
EP0502052A1 (en) 1992-09-09
AR243947A1 (en) 1993-09-30
CA2069107C (en) 2002-04-09
CN1030003C (en) 1995-10-11
ES2062569T3 (en) 1994-12-16
MX173408B (en) 1994-03-01
FI922288A0 (en) 1992-05-20
NO921962D0 (en) 1992-05-19
ZA909337B (en) 1991-09-25
DE69013159T2 (en) 1995-03-09
FI922288A (en) 1992-05-20
RU2067637C1 (en) 1996-10-10
SE465039B (en) 1991-07-15
DE69013159D1 (en) 1994-11-10
NO921962L (en) 1992-05-20
WO1991008337A1 (en) 1991-06-13
AU662882B2 (en) 1995-09-21
NO176109B (en) 1994-10-24
JPH05502274A (en) 1993-04-22
EP0502052B1 (en) 1994-10-05
AU6883691A (en) 1991-06-26
NO176109C (en) 1995-02-01
FI103902B (en) 1999-10-15
CA2069107A1 (en) 1991-05-24
SE8903953D0 (en) 1989-11-23
ATE112595T1 (en) 1994-10-15
JP2815701B2 (en) 1998-10-27
SE8903953L (en) 1991-05-24
BR9007837A (en) 1992-08-25
FI103902B1 (en) 1999-10-15
CN1051953A (en) 1991-06-05

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