JPS646191A - Recovery of chemical substance from pulp waste liquid - Google Patents
Recovery of chemical substance from pulp waste liquidInfo
- Publication number
- JPS646191A JPS646191A JP63058546A JP5854688A JPS646191A JP S646191 A JPS646191 A JP S646191A JP 63058546 A JP63058546 A JP 63058546A JP 5854688 A JP5854688 A JP 5854688A JP S646191 A JPS646191 A JP S646191A
- Authority
- JP
- Japan
- Prior art keywords
- spent liquor
- reactor
- supplying
- reacting zone
- pulp
- 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.)
- Pending
Links
- 239000000126 substance Substances 0.000 title abstract 2
- 239000007788 liquid Substances 0.000 title 1
- 238000011084 recovery Methods 0.000 title 1
- 239000002699 waste material Substances 0.000 title 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 2
- 239000003513 alkali Substances 0.000 abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 2
- 229910052760 oxygen Inorganic materials 0.000 abstract 2
- 239000001301 oxygen Substances 0.000 abstract 2
- 239000012071 phase Substances 0.000 abstract 2
- 229910052717 sulfur Inorganic materials 0.000 abstract 2
- 239000011593 sulfur Substances 0.000 abstract 2
- 239000003575 carbonaceous material Substances 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000012808 vapor phase Substances 0.000 abstract 1
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
- D21C11/125—Decomposition of the pulp liquors in reducing atmosphere or in the absence of oxidants, i.e. gasification or pyrolysis
Landscapes
- Paper (AREA)
Abstract
PURPOSE: To provide a method for recovering chemicals from a pulp spent liquor by supplying the pulp spent liquor to the reacting zone of a reactor while also supplying an outer thermal energy independent of the burning, mutually independently controlling the temperature and an oxygen potential at the reacting zone, and binding the whole alkali and sulfur in a molten phase. CONSTITUTION: A pulp spent liquor is supplied to a reacting zone of a reactor while also supplying an outer thermal energy independent of the burning. The temperature and the oxygen potential at the reacting zone are mutually independently controlled, and if necessary, a carbon material and/or an oxygen- containing gas is supplied thereto. The substantially whole alkali and sulfur the separated from the vapor phase and bound to a molten phase taken out from a discharging opening connected to the reactor. An organic part of the spent liquor is simultaneously taken out in a shape of a gas.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8702627A SE464921B (en) | 1987-06-25 | 1987-06-25 | SAVED TO RECOVER CHEMICALS FROM MASS DEVICES |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS646191A true JPS646191A (en) | 1989-01-10 |
Family
ID=20368972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63058546A Pending JPS646191A (en) | 1987-06-25 | 1988-03-14 | Recovery of chemical substance from pulp waste liquid |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS646191A (en) |
| CN (1) | CN1030107A (en) |
| CA (1) | CA1324865C (en) |
| FI (1) | FI85994B (en) |
| SE (1) | SE464921B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7494637B2 (en) | 2000-05-16 | 2009-02-24 | Massachusetts Institute Of Technology | Thermal conversion of biomass to valuable fuels, chemical feedstocks and chemicals |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE9300199L (en) * | 1993-01-25 | 1994-07-26 | Kvaerner Pulping Tech | Method for recycling cellulosic liquids |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61174490A (en) * | 1984-10-19 | 1986-08-06 | エスケ−エフ ステイ−ル エンジニアリング アクテイエボラ−グ | Recovery of chemical product from pulp liquor |
-
1987
- 1987-06-25 SE SE8702627A patent/SE464921B/en not_active IP Right Cessation
-
1988
- 1988-03-09 FI FI881088A patent/FI85994B/en not_active Application Discontinuation
- 1988-03-14 JP JP63058546A patent/JPS646191A/en active Pending
- 1988-03-29 CN CN88101785A patent/CN1030107A/en active Pending
- 1988-05-25 CA CA000567585A patent/CA1324865C/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61174490A (en) * | 1984-10-19 | 1986-08-06 | エスケ−エフ ステイ−ル エンジニアリング アクテイエボラ−グ | Recovery of chemical product from pulp liquor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7494637B2 (en) | 2000-05-16 | 2009-02-24 | Massachusetts Institute Of Technology | Thermal conversion of biomass to valuable fuels, chemical feedstocks and chemicals |
Also Published As
| Publication number | Publication date |
|---|---|
| SE8702627L (en) | 1988-12-26 |
| FI85994B (en) | 1992-03-13 |
| FI881088A0 (en) | 1988-03-09 |
| FI881088L (en) | 1988-12-26 |
| SE464921B (en) | 1991-07-01 |
| SE8702627D0 (en) | 1987-06-25 |
| CN1030107A (en) | 1989-01-04 |
| CA1324865C (en) | 1993-12-07 |
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