SE0300434D0 - Crude tall oil recovery in alkaline pulp mills - Google Patents

Crude tall oil recovery in alkaline pulp mills

Info

Publication number
SE0300434D0
SE0300434D0 SE0300434A SE0300434A SE0300434D0 SE 0300434 D0 SE0300434 D0 SE 0300434D0 SE 0300434 A SE0300434 A SE 0300434A SE 0300434 A SE0300434 A SE 0300434A SE 0300434 D0 SE0300434 D0 SE 0300434D0
Authority
SE
Sweden
Prior art keywords
tall oil
crude tall
sodium bicarbonate
recovery system
crude
Prior art date
Application number
SE0300434A
Other languages
Swedish (sv)
Inventor
Curt Lindstroem
Lennart Delin
Lars Stigsson
Original Assignee
Kiram 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 Kiram Ab filed Critical Kiram Ab
Priority to SE0300434A priority Critical patent/SE0300434D0/en
Publication of SE0300434D0 publication Critical patent/SE0300434D0/en
Priority to PCT/SE2004/000207 priority patent/WO2004074415A1/en

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Paper (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The present invention relates to an improved method for the recovery of crude tall oil in an sodium pulp mill, without the recycling of sulphurous compounds to the chemicals recovery system of the mill, wherein, tall oil soap is treated with carbon dioxide (7) in a first acidulation step (2) forming an emulsion of partly acidified tall oil soap and a sodium bicarbonate brine; a fraction containing partly acidified tall oil soap is separated (9) from an aqueous suspension comprising sodium bicarbonate; said aqueous suspension comprising sodium bicarbonate (11) is recycled to the chemicals recovery system of a pulp mill; said partly acidified tall oil soap is further treated with carbon dioxide to form a tall oil intermediate which tall oil intermediate is washed and reacted with an acid in a final acidulation step (15) forming a mixture of crude tall oil and an aqueous salty brine; and said aqueous salty brine is separated (16) from the crude tall oil and disposed of externally (17) from the chemicals recovery system of said pulp mill.
SE0300434A 2003-02-18 2003-02-18 Crude tall oil recovery in alkaline pulp mills SE0300434D0 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE0300434A SE0300434D0 (en) 2003-02-18 2003-02-18 Crude tall oil recovery in alkaline pulp mills
PCT/SE2004/000207 WO2004074415A1 (en) 2003-02-18 2004-02-17 Crude tall oil recovery in alkaline pulp mills

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0300434A SE0300434D0 (en) 2003-02-18 2003-02-18 Crude tall oil recovery in alkaline pulp mills

Publications (1)

Publication Number Publication Date
SE0300434D0 true SE0300434D0 (en) 2003-02-18

Family

ID=20290435

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0300434A SE0300434D0 (en) 2003-02-18 2003-02-18 Crude tall oil recovery in alkaline pulp mills

Country Status (2)

Country Link
SE (1) SE0300434D0 (en)
WO (1) WO2004074415A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE362506T1 (en) * 2004-09-21 2007-06-15 Linde Ag METHOD FOR OBTAINING TALL OIL OR TALL OIL FUEL
FI120540B (en) 2007-05-15 2009-11-30 Forchem Oy Method for treating tall oil
SE534404C2 (en) * 2009-12-30 2011-08-09 Anders Goeran Hofstedt Procedure for separating and splitting raw soap from a mixture of black liquor and raw soap
WO2012161865A1 (en) * 2011-05-24 2012-11-29 Liquid Lignin Company, Llc Process for treating lignin
PT2776621T (en) * 2011-11-11 2016-11-07 Valmet Oy Method for lignin separation from black liquor involving multiple acidification steps
FI126505B (en) * 2015-07-08 2017-01-13 Upm Kymmene Corp Method and system for reducing residual sludge in crude tall oil
US11034914B2 (en) 2018-05-01 2021-06-15 Kraton Polymers Llc Desulfurized black liquor soap compositions and processes for producing

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3901869A (en) * 1974-01-11 1975-08-26 Westvaco Corp Acidification of tall oil soap
US4075188A (en) * 1976-02-02 1978-02-21 Westvaco Corporation Recovery of crude tall oil
US5286845A (en) * 1992-05-20 1994-02-15 Union Camp Corporation Acidification of tall oil soap using carbon dioxide
US5283319A (en) * 1993-06-23 1994-02-01 Union Camp Corporation Process and control strategy for the recovery and use of excess carbon dioxide discharge from a high pressure carbon dioxide acidulation process
FI104491B (en) * 1996-12-30 2000-02-15 Aga Ab Method and apparatus for purifying a crude tall oil filter

Also Published As

Publication number Publication date
WO2004074415A1 (en) 2004-09-02

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