ES392100A1 - Pollution controlled polysulfide recovery process - Google Patents
Pollution controlled polysulfide recovery processInfo
- Publication number
- ES392100A1 ES392100A1 ES392100A ES392100A ES392100A1 ES 392100 A1 ES392100 A1 ES 392100A1 ES 392100 A ES392100 A ES 392100A ES 392100 A ES392100 A ES 392100A ES 392100 A1 ES392100 A1 ES 392100A1
- Authority
- ES
- Spain
- Prior art keywords
- polysulfide
- liquor
- recovery process
- sulfur
- mixed
- 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
Links
- 229920001021 polysulfide Polymers 0.000 title abstract 4
- 239000005077 polysulfide Substances 0.000 title abstract 4
- 150000008117 polysulfides Polymers 0.000 title abstract 4
- 238000011084 recovery Methods 0.000 title abstract 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 abstract 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 2
- 239000011593 sulfur Substances 0.000 abstract 2
- 229910052717 sulfur Inorganic materials 0.000 abstract 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract 1
- 235000011941 Tilia x europaea Nutrition 0.000 abstract 1
- 230000029087 digestion Effects 0.000 abstract 1
- 239000003546 flue gas Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 239000004571 lime Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 238000004537 pulping Methods 0.000 abstract 1
- 235000017557 sodium bicarbonate Nutrition 0.000 abstract 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 abstract 1
- 235000017550 sodium carbonate Nutrition 0.000 abstract 1
- 229910000029 sodium carbonate Inorganic materials 0.000 abstract 1
- HYHCSLBZRBJJCH-UHFFFAOYSA-N sodium polysulfide Chemical compound [Na+].S HYHCSLBZRBJJCH-UHFFFAOYSA-N 0.000 abstract 1
- 229910052979 sodium sulfide Inorganic materials 0.000 abstract 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/0656—Investigating concentration of particle suspensions using electric, e.g. electrostatic methods or magnetic methods
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S423/00—Chemistry of inorganic compounds
- Y10S423/03—Papermaking liquor
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (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)
Abstract
A chemical recovery process for a polysulfide paper pulping system is described. After the polysulfide digestion, the pulp washing is carried out in an essentially oxygen-free environment to minimize the oxidation of NaSH. The spent liquor is pre-evaporated and mixed with a recycle stream of liquor containing Na2CO3 and NaHCO3. The mixture is next carbonated with a gas stream rich in CO2 which has been generated from lime kiln flue gas. The carbonated spent liquor is then vacuum stripped to release H2S which is converted to sulfur. The sulfur is mixed and reacted with Na2S in at least part of the white liquor to form sodium polysulfide. The polysulfide liquor and any remaining white liquor are returned to the digester.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US4545570A | 1970-06-11 | 1970-06-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES392100A1 true ES392100A1 (en) | 1973-11-01 |
Family
ID=21937982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES392100A Expired ES392100A1 (en) | 1970-06-11 | 1971-06-09 | Pollution controlled polysulfide recovery process |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3650888A (en) |
| JP (1) | JPS5013361B1 (en) |
| CA (1) | CA941106A (en) |
| ES (1) | ES392100A1 (en) |
| FR (1) | FR2096202A5 (en) |
| GB (1) | GB1336899A (en) |
| NO (1) | NO133554C (en) |
| SE (1) | SE391546B (en) |
| ZA (1) | ZA713733B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3884751A (en) * | 1972-04-25 | 1975-05-20 | Texaco Inc | Coking of spent pulping liquors used in the alkaline sulfite process |
| SE434860B (en) * | 1976-11-15 | 1984-08-20 | Mo Och Domsjoe Ab | PROCEDURE FOR EXPOSURE OF CHLORIDES FROM CHEMICALS RECOVERY SYSTEMS BY SODIUM-BASED PREPARATION PROCESSES |
| CH632340A5 (en) | 1979-11-16 | 1982-09-30 | Charmilles Sa Ateliers | Method and apparatus for monitoring the concentration of solid particles suspended in a fluid. |
| FI85515C (en) * | 1990-07-09 | 1996-04-10 | Ahlstroem Oy | Process for controlling the sulphidity of a sulphate cellulose plant |
| US5246542A (en) * | 1991-09-18 | 1993-09-21 | Fosberg Theodore M | Evaporation and recovery process for bleached chemical thermo-mechanical pulp (BCTMP) effluent |
| SE9400383L (en) * | 1994-02-07 | 1995-08-08 | Kvaerner Pulping Tech | Ways to purify a sulphide-containing alkaline liquor from chloride |
| SE9703365D0 (en) * | 1997-09-18 | 1997-09-18 | Kvaerner Pulping Tech | Method in connection with impregnation and digestion of lignocelulosic material |
| US5911853A (en) * | 1997-09-11 | 1999-06-15 | International Paper Company | Method for treating paper mill condensate to reduce the amount of sulfur compounds therein |
| WO1999014423A1 (en) * | 1997-09-18 | 1999-03-25 | Kvaerner Pulping Ab | Polysulfide pulping process |
| FI119915B2 (en) | 2003-10-03 | 2011-06-15 | Metsae Botnia Ab Oy | Removal of sulfur from the smell gases of a cellulose factory |
| FI122841B (en) * | 2004-10-04 | 2012-07-31 | Metso Paper Inc | Method and apparatus for making cellulosic pulp |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2574193A (en) * | 1947-12-06 | 1951-11-06 | Remington Rand Inc | Chemical recovery and control in the kraft pulp process |
| US2999044A (en) * | 1955-08-02 | 1961-09-05 | Jr Theron Tilford Collins | Production of paper pulp |
| US3331732A (en) * | 1962-12-17 | 1967-07-18 | Mo Och Domsjoe Ab | Method of removing hydrogen sulfide from an aqueous solution of alkali sulfide |
| US3448002A (en) * | 1964-06-20 | 1969-06-03 | Domtar Ltd | Pulping process |
| US3514371A (en) * | 1966-03-01 | 1970-05-26 | Katsuo Watanabe | Preparation of kraft process liquor from waste soda liquor from petroleum industries |
-
1970
- 1970-06-11 US US45455A patent/US3650888A/en not_active Expired - Lifetime
-
1971
- 1971-04-21 CA CA110,988A patent/CA941106A/en not_active Expired
- 1971-06-09 ZA ZA713733A patent/ZA713733B/en unknown
- 1971-06-09 ES ES392100A patent/ES392100A1/en not_active Expired
- 1971-06-10 JP JP46040648A patent/JPS5013361B1/ja active Pending
- 1971-06-10 SE SE7107566A patent/SE391546B/en unknown
- 1971-06-10 FR FR7121141A patent/FR2096202A5/fr not_active Expired
- 1971-06-10 NO NO2194/71A patent/NO133554C/no unknown
- 1971-06-10 GB GB1999371*[A patent/GB1336899A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NO133554C (en) | 1976-05-19 |
| SE391546B (en) | 1977-02-21 |
| FR2096202A5 (en) | 1972-02-11 |
| NO133554B (en) | 1976-02-09 |
| JPS5013361B1 (en) | 1975-05-19 |
| ZA713733B (en) | 1972-01-26 |
| CA941106A (en) | 1974-02-05 |
| US3650888A (en) | 1972-03-21 |
| GB1336899A (en) | 1973-11-14 |
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| NO762084L (en) | ||
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