US52545A - Improvement in making paper-pulp from wood, straw - Google Patents
Improvement in making paper-pulp from wood, straw Download PDFInfo
- Publication number
- US52545A US52545A US52545DA US52545A US 52545 A US52545 A US 52545A US 52545D A US52545D A US 52545DA US 52545 A US52545 A US 52545A
- Authority
- US
- United States
- Prior art keywords
- wood
- straw
- pulp
- improvement
- making paper
- 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
- 239000002023 wood Substances 0.000 title description 14
- 239000010902 straw Substances 0.000 title description 12
- 229920001131 Pulp (paper) Polymers 0.000 title description 6
- 238000000034 method Methods 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 6
- BPQQTUXANYXVAA-UHFFFAOYSA-N silicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 6
- 235000013311 vegetables Nutrition 0.000 description 6
- 238000009835 boiling Methods 0.000 description 4
- 240000006394 Sorghum bicolor Species 0.000 description 2
- 235000011684 Sorghum saccharatum Nutrition 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000006193 liquid solution Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004537 pulping Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
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
- D21C7/00—Digesters
- D21C7/14—Means for circulating the lye
Definitions
- the boiling liquid under pressure containing the solution of silicate of soda
- the heat may be communicated by a coil ot'steam or hot-water pipes in the bottom of the digester, or any other convenient mode.
Landscapes
- Paper (AREA)
Description
UNITED STATES PATENT OFFICE,
JOHN'W. DIXON, OF PHILADELPHIA, PENNSYLVANIA.
IMPROVEMENT IN MAKING PAPER-PULP FROM WOOD, STRAW, &c.
Specification forming part of Letters Patent No. 52,545, dated February 13, 1866.
To all whom it may concern Be it known that I, JOHN W. DIXON, of the cityofPhiladelphi-a and StateofPennsylvania, have invented a new and useful Improvement in the Process of Making Paper-Pulp from Wood, Straw, Oornstalks, and other vegetable fibrous substances; and I do hereby declare the following to be a full and exact description of the same.
I cut the wood, straw, oornstalks, 850., into short lengths by any convenient cutting-machine. The cuttings are then placed in a strong closed boiler or digester and submitted to the action of a highly-heated solution of silicate of soda under pressure. With wood I find a solution of 2 to 5 Banm, at a pressure of eighty to one hundred and twenty pounds and the corresponding temperature thereto, will complete the pulping operation. A less strength of solution at this temperaturesay from 2 to 4 of Baumwill answer with straw, cornstalks, or sorghum, and 1 indicate these temperatures and strengths respectively in a good digesting apparatus, such as hereinafter described.
I prefer also to perform the digesting opertion under pressure in the peculiar apparatus for which I have applied fora patent, in which the boiling liquid under pressure, containing the solution of silicate of soda, is made to circulate from the bottom to the top of the digester and through the mass to be pulped within the digester by means of a pump. The heat may be communicated by a coil ot'steam or hot-water pipes in the bottom of the digester, or any other convenient mode.
I do not desire to limit myself to the above degrees of temperature for treating the material, nor the above strength of solution, nor to any special form of pulp-digesting apparatus. The heat of the liquid solution in the boiler may be varied according to the nature of the substance to be treated and the length of time under treatmentand the form of digestin g apparatus adopted.
Having thus described my inventiomwhat I claim as new, and desire to secure by Letters Patent, is
The process of treating wood or other vegetable substances by boiling in a solution of silicate of soda under pressure, as a process or preparatory process for making pulp in the manufacture of paper from wood, straw, or other vegetable substances, substantially as described.
JOHN W. DIXON.
Witnesses J. E. SHAW, BENJN. MGMAKIN, Jr.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US52545A true US52545A (en) | 1866-02-13 |
Family
ID=2122090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US52545D Expired - Lifetime US52545A (en) | Improvement in making paper-pulp from wood, straw |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US52545A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2651571A (en) * | 1948-06-26 | 1953-09-08 | Howard E St John | Alkaline treating method for obtaining ramie and other fibers |
| US6406594B1 (en) * | 1997-07-18 | 2002-06-18 | Boise Cascade Corporation | Method for manufacturing paper products comprising polymerized mineral networks |
| US6494991B1 (en) * | 1998-07-17 | 2002-12-17 | Boise Cascade Corporation | Paper products comprising filler materials preflocculated using starch granules and/or polymerized mineral networks |
-
0
- US US52545D patent/US52545A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2651571A (en) * | 1948-06-26 | 1953-09-08 | Howard E St John | Alkaline treating method for obtaining ramie and other fibers |
| US6406594B1 (en) * | 1997-07-18 | 2002-06-18 | Boise Cascade Corporation | Method for manufacturing paper products comprising polymerized mineral networks |
| US6494991B1 (en) * | 1998-07-17 | 2002-12-17 | Boise Cascade Corporation | Paper products comprising filler materials preflocculated using starch granules and/or polymerized mineral networks |
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