GB1381728A - Production of cellulose pulp for paper and paper board - Google Patents
Production of cellulose pulp for paper and paper boardInfo
- Publication number
- GB1381728A GB1381728A GB4591871A GB4591871A GB1381728A GB 1381728 A GB1381728 A GB 1381728A GB 4591871 A GB4591871 A GB 4591871A GB 4591871 A GB4591871 A GB 4591871A GB 1381728 A GB1381728 A GB 1381728A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ammonia
- digester
- inlet
- supply
- 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.)
- Expired
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
- D21C3/024—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes with NH3 or H2O
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
Abstract
1381728 Chemical contact apparatus; digesters J THILLAIMUTHU 27 Sept 1972 [1 Oct 1971] 45918/71 Headings BIF and B1X [Also in Division D2] Apparatus for digesting raw cellulosic materials with an aqueous ammoniacal solution to form pulp and for recovering aqueous ammonia for reuse comprises a digester 1 provided with a steam jacket 2 and stirrer 17, an inlet 5, 6 for supply of raw cellulosic material, inlets 8 12 for supply of water and aqueous ammonia respectively, and inlet 20 for supply of an inert gas, a pipe 14 for removal of ammonia gas on distillation, a condenser 15, ammonia storage vessel 10, and outlets 7, 9 for pulp and liquor respectively. In use, raw cellulosic material may be fed through inlet 5, 6 into the digester, and digested therein with aqueous ammonia under pressure and at an elevated temperature. The aqueous ammonia may be supplied via line 10 from storage vessel 10 by means of pump in water in tank 10. The spent liquors may be released, the residual heat being used to evaporate off ammonia. An anti-foam tower 19 which may contain perforated plates or wire grids may be located between the digester and condenser. Ammonia gas may be withdrawn with the aid of vacuum pump 16, or an ejector (see Fig. 2, not shown), and absorbed in water in tank 10. The spent liquors may be drained via outlet 9 for recovery of chemicals or disposal, and the residual contents of the digester may be blown into pit 18 to be drained prior to pulp beating and washing. The ammonia recovery apparatus may be separate from the digester, rather than combined therewith as shown.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4591871A GB1381728A (en) | 1971-10-01 | 1971-10-01 | Production of cellulose pulp for paper and paper board |
| CA152,604A CA1001808A (en) | 1971-10-01 | 1972-09-26 | Manufacture of cellulose pulp for paper and paper board |
| AU47144/72A AU472346B2 (en) | 1971-10-01 | 1972-09-27 | Improvements in the manufacture of cellulose pulp for paper and paper board |
| JP9858672A JPS5111201B2 (en) | 1971-10-01 | 1972-09-30 | |
| DE19722248288 DE2248288C3 (en) | 1971-10-01 | 1972-10-02 | Process and installation for the production of cellulose pulp |
| NL7213278A NL7213278A (en) | 1971-10-01 | 1972-10-02 | |
| MY7700048A MY7700048A (en) | 1971-10-01 | 1977-12-31 | Improvements in the production of cellulose pulp for paper and paper board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4591871A GB1381728A (en) | 1971-10-01 | 1971-10-01 | Production of cellulose pulp for paper and paper board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1381728A true GB1381728A (en) | 1975-01-29 |
Family
ID=10439093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4591871A Expired GB1381728A (en) | 1971-10-01 | 1971-10-01 | Production of cellulose pulp for paper and paper board |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5111201B2 (en) |
| AU (1) | AU472346B2 (en) |
| CA (1) | CA1001808A (en) |
| GB (1) | GB1381728A (en) |
| MY (1) | MY7700048A (en) |
| NL (1) | NL7213278A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4227964A (en) | 1976-12-01 | 1980-10-14 | Kerr Allan J | Method of treating lignocellulosic or cellulosic pulp to promote the kinking of pulp fibres and/or to improve paper tear strength |
| WO2008155639A3 (en) * | 2007-06-20 | 2009-02-19 | Nagarjuna Energy Private Ltd | A process for separating biomass components |
| US20110143412A1 (en) * | 2009-12-15 | 2011-06-16 | Samsung Electronics Co., Ltd. | Method and apparatus for pretreating biomass using internal heat |
| WO2012071312A3 (en) * | 2010-11-23 | 2012-08-16 | E. I. Du Pont De Nemours And Company | Continuously fed biomass pretreatment process for a packed bed reactor |
| US8673031B2 (en) | 2009-08-24 | 2014-03-18 | Board Of Trustees Of Michigan State University | Pretreated densified biomass products |
| US8945245B2 (en) | 2009-08-24 | 2015-02-03 | The Michigan Biotechnology Institute | Methods of hydrolyzing pretreated densified biomass particulates and systems related thereto |
| US8968515B2 (en) | 2006-05-01 | 2015-03-03 | Board Of Trustees Of Michigan State University | Methods for pretreating biomass |
| US9206446B2 (en) | 2006-05-01 | 2015-12-08 | Board Of Trustees Of Michigan State University | Extraction of solubles from plant biomass for use as microbial growth stimulant and methods related thereto |
| US9650657B2 (en) | 2010-04-19 | 2017-05-16 | Board Of Trustees Of Michigan State University | Methods for producing extracted and digested products from pretreated lignocellulosic biomass |
| US10202660B2 (en) | 2012-03-02 | 2019-02-12 | Board Of Trustees Of Michigan State University | Methods for increasing sugar yield with size-adjusted lignocellulosic biomass particles |
| US10457810B2 (en) | 2009-08-24 | 2019-10-29 | Board Of Trustees Of Michigan State University | Densified biomass products containing pretreated biomass fibers |
| US10730958B2 (en) | 2017-03-08 | 2020-08-04 | Board Of Trustees Of Michigan State University | Pretreatment of densified biomass using liquid ammonia and systems and products related thereto |
| US11440999B2 (en) | 2017-07-07 | 2022-09-13 | Board Of Trustees Of Michigan State University | De-esterification of biomass prior to ammonia pretreatment |
-
1971
- 1971-10-01 GB GB4591871A patent/GB1381728A/en not_active Expired
-
1972
- 1972-09-26 CA CA152,604A patent/CA1001808A/en not_active Expired
- 1972-09-27 AU AU47144/72A patent/AU472346B2/en not_active Expired
- 1972-09-30 JP JP9858672A patent/JPS5111201B2/ja not_active Expired
- 1972-10-02 NL NL7213278A patent/NL7213278A/xx unknown
-
1977
- 1977-12-31 MY MY7700048A patent/MY7700048A/en unknown
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4227964A (en) | 1976-12-01 | 1980-10-14 | Kerr Allan J | Method of treating lignocellulosic or cellulosic pulp to promote the kinking of pulp fibres and/or to improve paper tear strength |
| US9644222B2 (en) | 2006-05-01 | 2017-05-09 | Board Of Trustees Of Michigan State University | Methods for pretreating biomass |
| US8968515B2 (en) | 2006-05-01 | 2015-03-03 | Board Of Trustees Of Michigan State University | Methods for pretreating biomass |
| US9206446B2 (en) | 2006-05-01 | 2015-12-08 | Board Of Trustees Of Michigan State University | Extraction of solubles from plant biomass for use as microbial growth stimulant and methods related thereto |
| US20100317843A1 (en) * | 2007-06-20 | 2010-12-16 | Nagarjuna Energy Private Limited | Process for separating biomass components |
| AU2008264871B2 (en) * | 2007-06-20 | 2012-05-31 | Nagarjuna Energy Private Limited | A process for separating biomass components |
| CN101790611B (en) * | 2007-06-20 | 2013-11-20 | 纳格祖那能量私人有限公司 | A process for separating biomass components |
| WO2008155639A3 (en) * | 2007-06-20 | 2009-02-19 | Nagarjuna Energy Private Ltd | A process for separating biomass components |
| US20150025229A1 (en) * | 2007-06-20 | 2015-01-22 | Nagarjuna Energy Private Limited | Process for separating biomass components |
| US9039792B2 (en) | 2009-08-24 | 2015-05-26 | Board Of Trustees Of Michigan State University | Methods for producing and using densified biomass products containing pretreated biomass fibers |
| US8945245B2 (en) | 2009-08-24 | 2015-02-03 | The Michigan Biotechnology Institute | Methods of hydrolyzing pretreated densified biomass particulates and systems related thereto |
| US9458482B2 (en) | 2009-08-24 | 2016-10-04 | The Michigan Biotechnology Institute | Methods of hydrolyzing pretreated densified biomass particulates and systems related thereto |
| US8673031B2 (en) | 2009-08-24 | 2014-03-18 | Board Of Trustees Of Michigan State University | Pretreated densified biomass products |
| US10457810B2 (en) | 2009-08-24 | 2019-10-29 | Board Of Trustees Of Michigan State University | Densified biomass products containing pretreated biomass fibers |
| US20110143412A1 (en) * | 2009-12-15 | 2011-06-16 | Samsung Electronics Co., Ltd. | Method and apparatus for pretreating biomass using internal heat |
| US9139852B2 (en) * | 2009-12-15 | 2015-09-22 | Samsung Electronics Co., Ltd. | Method and apparatus for pretreating biomass using internal heat |
| US9650657B2 (en) | 2010-04-19 | 2017-05-16 | Board Of Trustees Of Michigan State University | Methods for producing extracted and digested products from pretreated lignocellulosic biomass |
| WO2012071312A3 (en) * | 2010-11-23 | 2012-08-16 | E. I. Du Pont De Nemours And Company | Continuously fed biomass pretreatment process for a packed bed reactor |
| US10202660B2 (en) | 2012-03-02 | 2019-02-12 | Board Of Trustees Of Michigan State University | Methods for increasing sugar yield with size-adjusted lignocellulosic biomass particles |
| US10730958B2 (en) | 2017-03-08 | 2020-08-04 | Board Of Trustees Of Michigan State University | Pretreatment of densified biomass using liquid ammonia and systems and products related thereto |
| US11440999B2 (en) | 2017-07-07 | 2022-09-13 | Board Of Trustees Of Michigan State University | De-esterification of biomass prior to ammonia pretreatment |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2248288A1 (en) | 1973-04-26 |
| JPS5111201B2 (en) | 1976-04-09 |
| NL7213278A (en) | 1973-04-03 |
| MY7700048A (en) | 1977-12-31 |
| AU472346B2 (en) | 1976-05-20 |
| AU4714472A (en) | 1974-04-04 |
| CA1001808A (en) | 1976-12-21 |
| DE2248288B2 (en) | 1976-01-29 |
| JPS4861702A (en) | 1973-08-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 746 | Register noted 'licences of right' (sect. 46/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |