JPS57500933A - - Google Patents
Info
- Publication number
- JPS57500933A JPS57500933A JP56501957A JP50195781A JPS57500933A JP S57500933 A JPS57500933 A JP S57500933A JP 56501957 A JP56501957 A JP 56501957A JP 50195781 A JP50195781 A JP 50195781A JP S57500933 A JPS57500933 A JP S57500933A
- Authority
- JP
- Japan
- Prior art keywords
- pulping
- employing
- water
- sulfide
- bisulfide
- 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
- 238000004537 pulping Methods 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical class S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 abstract 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract 1
- 229910052977 alkali metal sulfide Inorganic materials 0.000 abstract 1
- HIVLDXAAFGCOFU-UHFFFAOYSA-N ammonium hydrosulfide Chemical compound [NH4+].[SH-] HIVLDXAAFGCOFU-UHFFFAOYSA-N 0.000 abstract 1
- UYJXRRSPUVSSMN-UHFFFAOYSA-P ammonium sulfide Chemical compound [NH4+].[NH4+].[S-2] UYJXRRSPUVSSMN-UHFFFAOYSA-P 0.000 abstract 1
- 239000001284 azanium sulfanide Substances 0.000 abstract 1
- -1 bisulfide compound Chemical class 0.000 abstract 1
- 239000003153 chemical reaction reagent Substances 0.000 abstract 1
- 239000002655 kraft paper Substances 0.000 abstract 1
- 239000003265 pulping liquor Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/006—Pulping cellulose-containing materials with compounds not otherwise provided for
-
- 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
- D21C3/20—Pulping cellulose-containing materials with organic solvents or in solvent environment
Landscapes
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/155,244 US4329200A (en) | 1980-06-02 | 1980-06-02 | Method and system for selective alkaline defiberization and delignification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57500933A true JPS57500933A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1982-05-27 |
Family
ID=22554632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56501957A Pending JPS57500933A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1980-06-02 | 1981-05-26 |
Country Status (8)
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8241873B2 (en) | 2008-12-19 | 2012-08-14 | E I Du Pont De Nemours And Company | Organic solvent pretreatment of biomass to enhance enzymatic saccharification |
| US8278070B2 (en) | 2008-12-19 | 2012-10-02 | E I Du Pont De Nemours And Company | Organic solvent pretreatment of biomass to enhance enzymatic saccharification |
| US8304213B2 (en) | 2008-12-19 | 2012-11-06 | E I Du Pont De Nemours And Company | Organic solvent pretreatment of biomass to enhance enzymatic saccharification |
| US20100159522A1 (en) * | 2008-12-19 | 2010-06-24 | E.I. De Pont De Nemours And Company | Organosolv and ozone treatment of biomass to enhance enzymatic saccharification |
| US8216809B2 (en) | 2008-12-19 | 2012-07-10 | E I Du Pont De Nemours And Company | Organic solvent pretreatment of biomass to enhance enzymatic saccharification |
| CA2742681A1 (en) | 2008-12-19 | 2010-07-15 | E. I. Du Pont De Nemours And Company | Organic solvent pretreatment of biomass to enhance enzymatic saccharification |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1735013A (en) * | 1928-06-01 | 1929-11-12 | Brown Co | Process of pulping raw cellulosic material |
| US1817525A (en) * | 1929-03-12 | 1931-08-04 | Brown Co | Production of chemical wood pulp |
| FR704698A (fr) * | 1929-11-02 | 1931-05-23 | Procédé de désagrégation de substances fibreuses végétales en vue de l'obtention simultanée de la cellulose et des matières incrustantes | |
| US1891337A (en) * | 1930-01-09 | 1932-12-20 | Du Pont | Process of producing cellulose |
| GB398801A (en) * | 1932-02-16 | 1933-09-18 | Henry Dreyfus | Improvements in or relating to the manufacture of cellulose or cellulosic materials |
| US2166540A (en) * | 1937-12-17 | 1939-07-18 | Univ Minnesota | Alcoholic treatment of ligneous cellulosic material |
| CA856133A (en) * | 1967-01-13 | 1970-11-17 | Rayonier Inc. | Process for pulping wood chips and product |
| BE756225A (fr) * | 1969-09-26 | 1971-03-01 | Brev Ind Et Chimiques Soc Gen | Procede de fabrication de pate cellulosique |
-
1980
- 1980-06-02 US US06/155,244 patent/US4329200A/en not_active Expired - Lifetime
-
1981
- 1981-05-26 JP JP56501957A patent/JPS57500933A/ja active Pending
- 1981-05-26 WO PCT/US1981/000734 patent/WO1981003505A1/en unknown
- 1981-05-29 NZ NZ197251A patent/NZ197251A/xx unknown
- 1981-06-02 DE DE8181302445T patent/DE3161365D1/de not_active Expired
- 1981-06-02 EP EP81302445A patent/EP0041401B1/en not_active Expired
- 1981-06-02 AT AT81302445T patent/ATE5268T1/de not_active IP Right Cessation
- 1981-06-02 ES ES502709A patent/ES8204015A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| WO1981003505A1 (en) | 1981-12-10 |
| EP0041401A1 (en) | 1981-12-09 |
| EP0041401B1 (en) | 1983-11-09 |
| ES502709A0 (es) | 1982-04-01 |
| US4329200A (en) | 1982-05-11 |
| ATE5268T1 (de) | 1983-11-15 |
| DE3161365D1 (en) | 1983-12-15 |
| NZ197251A (en) | 1983-11-18 |
| ES8204015A1 (es) | 1982-04-01 |
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