US1626171A - Process for cooking vegetable fiber - Google Patents
Process for cooking vegetable fiber Download PDFInfo
- Publication number
- US1626171A US1626171A US119471A US11947126A US1626171A US 1626171 A US1626171 A US 1626171A US 119471 A US119471 A US 119471A US 11947126 A US11947126 A US 11947126A US 1626171 A US1626171 A US 1626171A
- Authority
- US
- United States
- Prior art keywords
- sulphur
- fibrous material
- cooking
- sodium carbonate
- softening
- 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
- 238000000034 method Methods 0.000 title description 19
- 235000013311 vegetables Nutrition 0.000 title description 14
- 238000010411 cooking Methods 0.000 title description 9
- 239000000835 fiber Substances 0.000 title description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 27
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 21
- 239000005864 Sulphur Substances 0.000 description 19
- 239000002657 fibrous material Substances 0.000 description 19
- 235000017550 sodium carbonate Nutrition 0.000 description 13
- 229910000029 sodium carbonate Inorganic materials 0.000 description 13
- 239000010902 straw Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000000047 product Substances 0.000 description 5
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 4
- 235000011941 Tilia x europaea Nutrition 0.000 description 4
- 239000004571 lime Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- 239000011087 paperboard Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- -1 HC 3 ions Chemical class 0.000 description 1
- 241000209504 Poaceae Species 0.000 description 1
- 239000004902 Softening Agent Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009993 causticizing Methods 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011369 resultant mixture Substances 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 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
- D21C3/02—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
Definitions
- This invention relates to processes for softening vegetable fibrous material, such as wood, cereal straws, and grasses, whereby a ren'iarkably fine product may be obtained by the use of relatively inexpensive chemicals.
- the process includes the use of sodium carbonate and sulphur and is conducted under such conditions that these materials combine and effect desired changes in the fibrous ma terial such-as heretofore have been obtainable only by the use of more expensiv chemicals.
- the resultant paper or paper board produced from materials obtained by this process is more pliable and stronger than that ordinarily obtainable from straw, for example, by other methods such as give yields above fifty or sixty per cent.
- the fibers give the color reactions characteristic of well cooked pulp obtainable by the sulphate process and which is c011- sidercd a much finer product than the usual straw pulps such as are obtained in cooking straw with lime.
- the cheapness of the cooking reagents proposed as result of this present invention and the quality of the product makes possible the more complete utilization of straw.
- the cooking vessels, digestors are charged with straw or other vegetable fibrous material in the usual I manner together with about seven pounds sodium carbonate, one pound of sulphur, and twenty-five gallons of water for each one hundred pounds dry weight of straw.
- cooking treatment of six hours is suflicient if at least five and one-half hours are at a temperature of 145 C.
- the action is conducted in closed vessels, and of course at itl pressures greater than atmospheric pressure.
- the chemicals may be combined in rotary digestors in the presence of straw and water or by suitable mechanical means before being introduced into the digestors.
- Sulphur has also previously been used in combination with caustic soda and also in combination with lime.
- the result of the first would be the formation of caustic soda and sodium sulphide, simulating a modification of the soda process and not relying on the use of sodium carbonate as the softening agent, as in the present invention.
- vVhere lime has been used with sulphur, theproducts formed are different from those of the present process, and in one use, it has been necessary to supplement such materials with sodium carbonate used, not as a cooking agent, but as an eliminator for undesirable products formed in the digestion when lime and sulphur are present.
- I claim 1 In a process of softening ve etable fibrous material, the steps consisting o treatwith a solution of sodium carbonate and sulphur, and under temperature conditions of at least 120 C.
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US119471A US1626171A (en) | 1926-06-29 | 1926-06-29 | Process for cooking vegetable fiber |
| GB10998/27A GB273663A (en) | 1926-06-29 | 1927-04-25 | Improvements in or relating to a process for cooking vegetable fiber |
| DEW75809D DE490384C (de) | 1926-06-29 | 1927-04-30 | Verfahren zum Erweichen pflanzlicher Fasern durch Natriumsulfid |
| FR633801D FR633801A (fr) | 1926-06-29 | 1927-05-03 | Procédé de cuisson des fibres végétales |
| NL23102D NL23102C (enrdf_load_stackoverflow) | 1926-06-29 | 1927-05-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US119471A US1626171A (en) | 1926-06-29 | 1926-06-29 | Process for cooking vegetable fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1626171A true US1626171A (en) | 1927-04-26 |
Family
ID=22384587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US119471A Expired - Lifetime US1626171A (en) | 1926-06-29 | 1926-06-29 | Process for cooking vegetable fiber |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1626171A (enrdf_load_stackoverflow) |
| DE (1) | DE490384C (enrdf_load_stackoverflow) |
| FR (1) | FR633801A (enrdf_load_stackoverflow) |
| GB (1) | GB273663A (enrdf_load_stackoverflow) |
| NL (1) | NL23102C (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2662012A (en) * | 1949-07-29 | 1953-12-08 | American Enka Corp | Preparation of straw cellulose |
| US2816832A (en) * | 1954-09-17 | 1957-12-17 | Crown Zellerbach Corp | Making dimethyl sulfide from pulp mill spent liquors |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6682722B2 (en) | 2001-09-19 | 2004-01-27 | The Procter & Gamble Company | Oral compositions providing enhanced overall cleaning |
-
1926
- 1926-06-29 US US119471A patent/US1626171A/en not_active Expired - Lifetime
-
1927
- 1927-04-25 GB GB10998/27A patent/GB273663A/en not_active Expired
- 1927-04-30 DE DEW75809D patent/DE490384C/de not_active Expired
- 1927-05-03 FR FR633801D patent/FR633801A/fr not_active Expired
- 1927-05-03 NL NL23102D patent/NL23102C/xx active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2662012A (en) * | 1949-07-29 | 1953-12-08 | American Enka Corp | Preparation of straw cellulose |
| US2816832A (en) * | 1954-09-17 | 1957-12-17 | Crown Zellerbach Corp | Making dimethyl sulfide from pulp mill spent liquors |
Also Published As
| Publication number | Publication date |
|---|---|
| NL23102C (enrdf_load_stackoverflow) | 1930-12-15 |
| DE490384C (de) | 1930-01-28 |
| GB273663A (en) | 1928-02-16 |
| FR633801A (fr) | 1928-02-04 |
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