ZA931629B - Polysulfide production in white liquor. - Google Patents
Polysulfide production in white liquor.Info
- Publication number
- ZA931629B ZA931629B ZA931629A ZA931629A ZA931629B ZA 931629 B ZA931629 B ZA 931629B ZA 931629 A ZA931629 A ZA 931629A ZA 931629 A ZA931629 A ZA 931629A ZA 931629 B ZA931629 B ZA 931629B
- Authority
- ZA
- South Africa
- Prior art keywords
- white liquor
- polysulfide production
- polysulfide
- production
- liquor
- Prior art date
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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
- D21C3/022—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes in presence of S-containing compounds
-
- 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
- D21C11/0064—Aspects concerning the production and the treatment of green and white liquors, e.g. causticizing green liquor
-
- 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
-
- 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
- D21C11/06—Treatment of pulp gases; Recovery of the heat content of the gases; Treatment of gases arising from various sources in pulp and paper mills; Regeneration of gaseous SO2, e.g. arising from liquors containing sulfur compounds
-
- 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
-
- 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/26—Multistage processes
-
- 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)
- Inorganic Chemistry (AREA)
- Paper (AREA)
- Compounds Of Unknown Constitution (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/877,724 US5234546A (en) | 1991-09-10 | 1992-05-04 | Polysulfide production in white liquor |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA931629B true ZA931629B (en) | 1993-10-04 |
Family
ID=25370593
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA931629A ZA931629B (en) | 1992-05-04 | 1993-03-08 | Polysulfide production in white liquor. |
Country Status (9)
Country | Link |
---|---|
US (1) | US5234546A (fi) |
EP (1) | EP0746651A1 (fi) |
JP (1) | JPH07506156A (fi) |
AU (1) | AU660787B2 (fi) |
BR (1) | BR9306310A (fi) |
CA (1) | CA2131377A1 (fi) |
FI (1) | FI944992A0 (fi) |
WO (1) | WO1993022493A1 (fi) |
ZA (1) | ZA931629B (fi) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5662774A (en) * | 1992-04-01 | 1997-09-02 | Tampella Power Oy | Adjusting the sulphur balance of a sulphate cellulose plant by heat treating black liquor in a last evaporation stage |
SE500263C2 (sv) * | 1993-03-11 | 1994-05-24 | Chemrec Ab | Process för separation av svavelföreningar ur en koldioxid- och vätesulfidinnehållande gasström |
US6036355A (en) * | 1997-07-14 | 2000-03-14 | Quantum Technologies, Inc. | Reactor mixing assembly |
SE9703365D0 (sv) * | 1997-09-18 | 1997-09-18 | Kvaerner Pulping Tech | Method in connection with impregnation and digestion of lignocelulosic material |
AU9195598A (en) * | 1997-09-18 | 1999-04-05 | Kvaerner Pulping Ab | Polysulfide pulping process |
RO120736B1 (ro) * | 2004-08-30 | 2006-06-30 | Ovidiu Păcală | Procedeu şi celulă de combustie pentru producereacurentului electric |
US7534413B2 (en) * | 2004-10-29 | 2009-05-19 | Heritage Environment Services, Llc | Calcium-sodium polysulfide chemical reagent and production methods |
MA33950B1 (fr) * | 2010-01-05 | 2013-01-02 | Basf Se | Liquides caloporteurs et accumulateurs thermiques a base de polysulfures pour des temperatures extremement elevees |
EP2669634A1 (en) | 2012-05-30 | 2013-12-04 | GN Store Nord A/S | A personal navigation system with a hearing device |
EP2685217A1 (en) | 2012-07-12 | 2014-01-15 | GN Store Nord A/S | A hearing device providing spoken information on the surroundings |
EP2690407A1 (en) | 2012-07-23 | 2014-01-29 | GN Store Nord A/S | A hearing device providing spoken information on selected points of interest |
EP2720001A1 (en) | 2012-10-15 | 2014-04-16 | GN Store Nord A/S | A navigation system with a hearing device |
EP2725818A1 (en) | 2012-10-23 | 2014-04-30 | GN Store Nord A/S | A hearing device with a distance measurement unit |
EP2942980A1 (en) | 2014-05-08 | 2015-11-11 | GN Store Nord A/S | Real-time control of an acoustic environment |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2135879A (en) * | 1935-07-08 | 1938-11-08 | Standard Oil Co California | Process for oxidizing hydrosulphides |
US2711430A (en) * | 1950-06-27 | 1955-06-21 | Svenska Cellulosaforeningens C | Method of improving the yield of methyl sulfide obtained by heating waste liquors fro cellulose manufacture by adding inorganic sulfides |
US4024229A (en) * | 1970-11-06 | 1977-05-17 | The Mead Corporation | Production of polysulfide with PTFE coated catalyst |
CA1004028A (en) * | 1972-02-29 | 1977-01-25 | The Mead Corporation | Sulfur recovery system |
US3762789A (en) * | 1972-08-22 | 1973-10-02 | K Robertson | Burgler proof gun apparatus |
US4067767A (en) * | 1972-10-05 | 1978-01-10 | Texaco Inc. | Liquid phase coking of spent kraft pulping liquors |
US4544461A (en) * | 1983-03-28 | 1985-10-01 | Energy Conversion Devices, Inc. | Hydrogen sulfide decomposition cell and catalytic materials therefor |
US4553981A (en) * | 1984-02-07 | 1985-11-19 | Union Carbide Corporation | Enhanced hydrogen recovery from effluent gas streams |
US4839326A (en) * | 1985-04-22 | 1989-06-13 | Exxon Research And Engineering Company | Promoted molybdenum and tungsten sulfide catalysts, their preparation and use |
FI75615C (fi) * | 1985-11-29 | 1991-08-26 | Ahlstroem Oy | Foerfarande foer saenkning av svartlutens viskositet. |
US4959079A (en) * | 1987-10-23 | 1990-09-25 | Santa Fe Braun Inc. | Steam reforming process with low fired duty |
US5082526A (en) * | 1989-01-23 | 1992-01-21 | Pulp And Paper Research Institute Of Canada | Process of producing kraft pulping liquor by the oxidation of white liquor in the presence of lime mud |
BR9201075A (pt) * | 1991-09-10 | 1993-04-13 | Kamyr Inc | Metodo de producao de polpa e metodo de tratamento de material fibroso celulosico triturado |
CA2060819A1 (en) * | 1991-09-10 | 1993-03-11 | Wayne Chamblee | Treatment of organic sulfur gases especially in kraft pulping systems and processes |
-
1992
- 1992-05-04 US US07/877,724 patent/US5234546A/en not_active Expired - Fee Related
-
1993
- 1993-02-16 JP JP5519238A patent/JPH07506156A/ja active Pending
- 1993-02-16 CA CA002131377A patent/CA2131377A1/en not_active Abandoned
- 1993-02-16 EP EP93906003A patent/EP0746651A1/en not_active Withdrawn
- 1993-02-16 WO PCT/US1993/001394 patent/WO1993022493A1/en not_active Application Discontinuation
- 1993-02-16 AU AU37206/93A patent/AU660787B2/en not_active Ceased
- 1993-02-16 BR BR9306310A patent/BR9306310A/pt not_active Application Discontinuation
- 1993-03-08 ZA ZA931629A patent/ZA931629B/xx unknown
-
1994
- 1994-10-24 FI FI944992A patent/FI944992A0/fi unknown
Also Published As
Publication number | Publication date |
---|---|
EP0746651A1 (en) | 1996-12-11 |
AU660787B2 (en) | 1995-07-06 |
JPH07506156A (ja) | 1995-07-06 |
FI944992A (fi) | 1994-10-24 |
CA2131377A1 (en) | 1993-11-11 |
EP0746651A4 (fi) | 1997-01-15 |
AU3720693A (en) | 1993-11-29 |
WO1993022493A1 (en) | 1993-11-11 |
FI944992A0 (fi) | 1994-10-24 |
US5234546A (en) | 1993-08-10 |
BR9306310A (pt) | 1998-06-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0573074A3 (en) | Liquefaction process. | |
ZA944335B (en) | Pulp production | |
EP0598978A3 (en) | Versatile production system. | |
EP0663668A3 (en) | Improvements in or in relation to EEPROMs. | |
GB2294045B (en) | Novel sulfonate, process for producing the same, and bleach composition comprising the same | |
ZA931629B (en) | Polysulfide production in white liquor. | |
ZA945347B (en) | Oxidized white liquor production method | |
ZA941828B (en) | Novel 2-thiosubstituted carbapenems. | |
EP0577849A4 (en) | POLYCARBONATE AND ITS PRODUCTION. | |
ZA936554B (en) | Detergent composition and process for its production. | |
EP0625591A3 (en) | Electrolyser. | |
ZA924152B (en) | Biobleaching process | |
CS227891A3 (en) | Heald | |
EP0565958A3 (de) | Geteilte Webmaschine. | |
ZA917491B (en) | Pulp bleaching solution. | |
EP0620195A3 (en) | Glassware making machine. | |
PH31155A (en) | Detergent production. | |
EP0620196A3 (en) | Glassware making machine. | |
PL306853A1 (en) | Dewatering through | |
EP0649408A4 (en) | METHOD FOR THE PRODUCTION OF PHENYLTHIOMETHYLPYRIDINYLALKENOATS. | |
EP0623693A3 (en) | Improved wiring block. | |
EP0605194A3 (en) | Transparent polycarbonate-polyester blends. | |
EP0570129A3 (en) | Finite state machine improvements. | |
NO944191D0 (no) | Polysulfidproduksjon i hvitlut | |
ZA938707B (en) | Bleaching process |