US1868569A - Method of treating fibers for paper making and other uses - Google Patents
Method of treating fibers for paper making and other uses Download PDFInfo
- Publication number
- US1868569A US1868569A US470536A US47053630A US1868569A US 1868569 A US1868569 A US 1868569A US 470536 A US470536 A US 470536A US 47053630 A US47053630 A US 47053630A US 1868569 A US1868569 A US 1868569A
- Authority
- US
- United States
- Prior art keywords
- sodium
- same
- subjecting
- treating
- tri
- 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 - Lifetime
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
Definitions
- This invention relates to a process of treating certain classes of woody fibers, such as hemp,flax straw, bagasse, and the. like, for the purpose of freeing the cellulose fibers thereof from the enveloping lignin in order to obtain the said fibers for paper making and other uses.
- the invention consists, generally stated, in sub jecting the said Woody materials to the action of an aqueous solution of sodium borate, sodium hydroxide and trisodium phosphate at atmospheric pressure, for a period of time varying from ten to twenty minutes, depending upon the specific Woody material under treatment, at a temperature of approximately 220 F.
- Tri-sodium phosphate 1 The chemicals are first preferably mixed together until they begin to liquefy or assume the form of a thick heavy paste. This mixture of chemicals is then placed in an open vessel and the water added and the temperature brought up to approximately 220 F. by the application of extraneous heat, such, for example, as by the use of a gas burner.
- the woody material such .as hemp, flax straw, bagasse or the like, is then subjected to the action-of this solution for a period of approximately twelve minutes.
- the period of time maybe slightly less or slightly more to the action of an aqueous solution of sodium than this, depending somewhat upon the class of the material being treated, or cooked, as it is technically known.
- fibrous woody materials of the character indicated can be cooked at atmospheric pressure, within a period of about fifteen minutes, and then beaten, and is ready for use in paper making Within an hour or two'additional, and fibers of a very superior quality for use in paper making or other uses obtained.v
- the method of treat1ng woody materiais which consists in subjecting the same to the action of an aqueous solution of sodium borate, sodium hydroxide and trisodium, phosphate at atmospheric pressure and at a temperature of approximately 6.
- the method of treating woody materials which consists in subjecting the same to the action of an aqueous solution of sodium borate, sodium hydroxide and tri-sodium phosphate for a period of approximately 12 terial from said solution and beating the same.
- the method of treating woody materials which consists in subjecting the same to the action of an aqueous solution of sodium borate, sodium hydroxide and tri-sodium phosphate at atmospheric pressure for a. period of approximately 12 minutes and then. removing t e woody material from the solution and beating the same.
- the method of treating woody materials which consists in subjecting the same to the action of an aqueous so ution of sodium. borate, sodium hydroxide and tri-sodium phosphate at a temperature ofapproximate- 1y 220 F. and then removing the woody material'from the solution and beating the same.
- the method of treating woody materials which consists in subjecting the same to the action of an a ueous solution of sodium borate, sodium hy roxide and tri-sodium phosphate at atmospheric pressure and at a temperature of approximately 220 F. and
- the method of treating woody materials which consists in subjecting the same to the action of an aqueous solution of sodium.
- borate, sodium hydroxide and tri-sodium phosphate for a period of approximately 12 minutes and then removin the woody material from the solution andieating the same.
- terials which consists in subjecting the same to the action of an aqueous solution of sodium borate,, sodium hydroxide and tri-sodium phosphate at atmospheric pressure for a period of approximately 12 minutes and at atemperature of about 220 F. and then removing the woody material from the solution and beating the same.
- the method of treating woody materials which consists in subjecting the same to the action of an aqueous solution of sodium borate, sodium hydroxide and tri-sodium phosphate and then removing the woody material from said solution and beating the same for from one to two hours.
- the method of treating woody materials which consists in subjecting the same to the action of an aqueous solution of sodium borate, sodium hydroxide and tri-sodium phosphate at atmospheric pressure and then removing the woody material from the solution and beating the same for from one to two hours.
- the method of treating woody materials which consists in subjecting the same to the action of an aqueous solution of sodium borate, sodium hydroxide and tri-sodium phosphate at atmospheric pressure for a period of approximately 12 minutes 'and then' removing the woody material from the solution and beating thesame for from one to two hours.
- the method of treating woody materials which consists in subjecting the same to the action of an aqueous solution of sodium borate, sodium hydroxide and tri-sodium phosphate at atmospheric pressure and at a temperature of approximately 220 F. and then removing the woody material from the solution and beating the same for from one to two hours.
- the method of treating woody materials which consists in subjecting the same to the action of an aqueous solution of sodium borate, sodium hydroxide and tri-sodium phosphate for a period of approximately 12 minutes and then removing the woody material from the solution and beating the same for from one to two hours.
- the method of treating woody materials which consists in subjecting the same to. the action of an aqueous solution of sodium borate, sodium hydroxide and tri-sodium phosphate at atmospheric pressure for a period of approximately 12 minutes and at a temperature of about 220 F. and then removing the woody material from the solution and beating the same for from one to two hours.
- the method of treating woody materials which consists in subjecting the same to a solution comprising approximately 50. percent water, 39. percent sodium borate, 10, percent sodium hydroxide, and 1. percent trisodium phosphate, at a temperature of about 220 F.
- the method of treating woody materials which consists in subjecting the same to a solution comprising approximately 50. percent water, 39. percent sodium borate, 10. percent sodium liy roxide, and 1. percent trisodium phosphate for a period of approximately 12 minutes, and then beating the same.
- the process ,of treating bagasse which. consists in subjecting the same for about 12 minutes to the action of a solution comprising approximately the following proportions: Water 50.%; sodium borate 39.%; sodium hydroxide l0.% and tri-sodium phosphate 1.%, at a temperature of about 51.
- the process of treating bagasse which consists in subjecting the same for about 12 minutes to the-action of a solution compris- 4 ing approximately thefollowing proportions: Water 50.%; .sodium borate 39.%; sodium hydroxide l0.%; and tri-sodium 55 phosphate l.%, at a temperature of about 220 F., and then beatingthe bagasse for from one to three hours.
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE379996D BE379996A (uk) | 1930-07-24 | ||
US470536A US1868569A (en) | 1930-07-24 | 1930-07-24 | Method of treating fibers for paper making and other uses |
GB12870/31A GB387644A (en) | 1930-07-24 | 1931-05-01 | Method of treating fibers for paper-making and other uses |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US470536A US1868569A (en) | 1930-07-24 | 1930-07-24 | Method of treating fibers for paper making and other uses |
Publications (1)
Publication Number | Publication Date |
---|---|
US1868569A true US1868569A (en) | 1932-07-26 |
Family
ID=23867995
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US470536A Expired - Lifetime US1868569A (en) | 1930-07-24 | 1930-07-24 | Method of treating fibers for paper making and other uses |
Country Status (3)
Country | Link |
---|---|
US (1) | US1868569A (uk) |
BE (1) | BE379996A (uk) |
GB (1) | GB387644A (uk) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4116759A (en) * | 1975-09-02 | 1978-09-26 | Jan Janson | Preparation of liquor for delignification or alkali treatment by autocaustization, and the preparation of pulp with this liquor |
-
0
- BE BE379996D patent/BE379996A/xx unknown
-
1930
- 1930-07-24 US US470536A patent/US1868569A/en not_active Expired - Lifetime
-
1931
- 1931-05-01 GB GB12870/31A patent/GB387644A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4116759A (en) * | 1975-09-02 | 1978-09-26 | Jan Janson | Preparation of liquor for delignification or alkali treatment by autocaustization, and the preparation of pulp with this liquor |
Also Published As
Publication number | Publication date |
---|---|
BE379996A (uk) | |
GB387644A (en) | 1933-02-09 |
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