GB674079A - Improvements in or relating to a process for the production of fibre plates and formed bodies of lignocellulosic materials using the lignin of the lignocellulosic materials as a binding agent - Google Patents
Improvements in or relating to a process for the production of fibre plates and formed bodies of lignocellulosic materials using the lignin of the lignocellulosic materials as a binding agentInfo
- Publication number
- GB674079A GB674079A GB15444/49A GB1544449A GB674079A GB 674079 A GB674079 A GB 674079A GB 15444/49 A GB15444/49 A GB 15444/49A GB 1544449 A GB1544449 A GB 1544449A GB 674079 A GB674079 A GB 674079A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lignocellulosic materials
- lignin
- relating
- production
- binding agent
- 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
- D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
- D21J1/00—Fibreboard
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
- C08H8/00—Macromolecular compounds derived from lignocellulosic materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
- D21J1/00—Fibreboard
- D21J1/08—Impregnated or coated fibreboard
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L97/00—Compositions of lignin-containing materials
- C08L97/005—Lignin
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Biochemistry (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
Fibre-boards &c. are made from e.g. beechwood shavings, or pine wood chips which may have been boiled with water, e.g. for 10 minutes at 4 atmospheres pressure, until the pH value is 5 to 6, and washed, by softening the lignin in a two-stage process, the first stage being impregnation, preferably under vacuum, with dilute lye, e.g. a 3.5 per cent solution of caustic soda, so that 2 to 7 per cent of alkali is absorbed, and the second being heating by vapour or superheated steam so as to make the lignin easily fusible, but insoluble in water, the material being then disintegrated.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT277993X | 1948-06-08 | ||
AT100648X | 1948-06-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB674079A true GB674079A (en) | 1952-06-18 |
Family
ID=25605887
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB15444/49A Expired GB674079A (en) | 1948-06-08 | 1949-06-09 | Improvements in or relating to a process for the production of fibre plates and formed bodies of lignocellulosic materials using the lignin of the lignocellulosic materials as a binding agent |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE489433A (en) |
CH (1) | CH277993A (en) |
DE (1) | DE831322C (en) |
GB (1) | GB674079A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9435077B2 (en) | 2009-12-11 | 2016-09-06 | Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno | Method for processing lignocellulose containing material |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1013157B (en) * | 1952-01-30 | 1957-08-01 | Fibermaterial Ab | Process for hardening and / or degassing fibreboard |
DE1042371B (en) * | 1952-03-31 | 1958-10-30 | Herbert Kurth | Process for the production of powdery lignin for the production of molding compounds in the production of pulp products |
DE3627861A1 (en) * | 1986-08-16 | 1988-02-25 | Hans Dipl Ing Knauth | Process for the production of peat-like products from lignocellulose-containing substances |
-
1949
- 1949-05-17 CH CH277993D patent/CH277993A/en unknown
- 1949-05-28 DE DEP44154A patent/DE831322C/en not_active Expired
- 1949-06-03 BE BE489433D patent/BE489433A/xx unknown
- 1949-06-09 GB GB15444/49A patent/GB674079A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9435077B2 (en) | 2009-12-11 | 2016-09-06 | Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno | Method for processing lignocellulose containing material |
Also Published As
Publication number | Publication date |
---|---|
CH277993A (en) | 1951-09-30 |
DE831322C (en) | 1952-02-14 |
BE489433A (en) | 1949-06-20 |
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