US420315A - Process of cleaning wool - Google Patents
Process of cleaning wool Download PDFInfo
- Publication number
- US420315A US420315A US420315DA US420315A US 420315 A US420315 A US 420315A US 420315D A US420315D A US 420315DA US 420315 A US420315 A US 420315A
- Authority
- US
- United States
- Prior art keywords
- acid
- fibers
- liquor
- woolen
- iron
- 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 12
- 210000002268 Wool Anatomy 0.000 title description 10
- 238000004140 cleaning Methods 0.000 title description 4
- 239000000835 fiber Substances 0.000 description 34
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 28
- 235000011149 sulphuric acid Nutrition 0.000 description 16
- 235000013311 vegetables Nutrition 0.000 description 16
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 14
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 14
- 235000011167 hydrochloric acid Nutrition 0.000 description 14
- 229910052742 iron Inorganic materials 0.000 description 14
- 239000001117 sulphuric acid Substances 0.000 description 12
- 239000000243 solution Substances 0.000 description 10
- 239000012267 brine Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 150000003839 salts Chemical class 0.000 description 8
- 239000011780 sodium chloride Substances 0.000 description 8
- 239000002699 waste material Substances 0.000 description 8
- 239000002253 acid Substances 0.000 description 6
- 159000000014 iron salts Chemical class 0.000 description 6
- 239000003086 colorant Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 206010022114 Injury Diseases 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000007844 bleaching agent Substances 0.000 description 2
- 238000001311 chemical methods and process Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 230000003292 diminished Effects 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- 230000002349 favourable Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- JRKICGRDRMAZLK-UHFFFAOYSA-L persulfate group Chemical group S(=O)(=O)([O-])OOS(=O)(=O)[O-] JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 2
- 238000005554 pickling Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 235000002639 sodium chloride Nutrition 0.000 description 2
- -1 temperature Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01C—CHEMICAL OR BIOLOGICAL TREATMENT OF NATURAL FILAMENTARY OR FIBROUS MATERIAL TO OBTAIN FILAMENTS OR FIBRES FOR SPINNING; CARBONISING RAGS TO RECOVER ANIMAL FIBRES
- D01C5/00—Carbonising rags to recover animal fibres
Definitions
- This invention relates to an improved process for utilizing waste liquors containing iron salts for the regaining of woolen fibers from rags containing woolen and vegetable fibers. These liquors have at present scarcely any value, and are in many localities run into the rivers.
- the invention consists in subjecting said rags to the action of aheated solution of salt, sulphuric or muriatic acid, and a waste liquor containingiron salts until the vegetable fibers are disintegrated, and then recovering the woolen fibers .by washing out the vegetable fibers.
- my invention 1 take, for instance, the so-called pickling-liquor which is obtainedin wire-mills and galvanizingworks in cleaning iron rods, wire, or sheetiron with sulphuric or muriatio acid, and oxidize it with nitric acid or bleaching-powder, by which the protochloride of iron is changed into perchlori'de of iron.
- This liquor has to be kept acid by adding muriatic or sulphuric acid; but generally the pickling-liquor contains enough free acid.
- This oxidized liquor is brought to a strength of 12 Baum at 60 Fahrenheit, and twenty gallons of the same are mixed with twenty-five gallons of the original not oxidized liquor of a strength of 20 Baum, fifty gallons of brine of 24 Baum,
- Muriatic acid may'be used in place of sulphuric acid; but then about ten gallons of muriatic acid have to be used and a correspondingly smaller quantity of brine.
- the relative proportions of the'ingredients can be increased or diminished according to the quality of the material to be treated and the time within which the operation is to be com-' pleted. The best results are obtained if the liquor which is to be oxidized'is taken from.
- the vegetable fibers are then washed out with water and the woolen fibers treated with a weak solution of an alkali, preferably ammonia, and then washed again with water.
- the woolen fibers are then dried and carded' and used again like new wool.
- the solution or bath can be used several times.
- a liquor which is most favorable for the rapid disintegration of the vegetable fibers, with the least injury to the woolen fibers and the color of the same, should contain about two per cent. of perchloride of iron, (or two and one-half per cent.
- ⁇ Vhat I claim is- The process herein described of recovering woolen fibers from rags containing woolen and vegetable fibers, which consists in treating them with a heated solution composed of oxidized pickling-liquor, unoxidized picklingliquor, brine, and sulphuric or muriatic acid, substantially as set forth.
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Molecular Biology (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Textile Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
Description
UNITED STATES PATENT OFFICE.
KARL F. STAHL, OF JOHNSTOWN, PENNSYLVANIA.
PROCESS OF CLEANING WOOL.
SPECIFICATION forming part of Letters Batent No. 420,315, dated January 28, 1890.
Application filed June a, 1888. Serial in. 276,511. on specimens.)
To all whom it may concern.-
.Be it known that I, KARL F. STAHL, of J ohnstown, in the county of Oambria and State of Pennsylvania, have invented certain new and useful Improvements in Processes of Utilizing aste Liquors Containing Iron Salts for Regaining YVoolen Fibers from Rags Containing Woolen and Vegetable Fibers, of which the following is a specification.
This invention relates to an improved process for utilizing waste liquors containing iron salts for the regaining of woolen fibers from rags containing woolen and vegetable fibers. These liquors have at present scarcely any value, and are in many localities run into the rivers.
The invention consists in subjecting said rags to the action of aheated solution of salt, sulphuric or muriatic acid, and a waste liquor containingiron salts until the vegetable fibers are disintegrated, and then recovering the woolen fibers .by washing out the vegetable fibers.
In carrying out my invention 1 take, for instance, the so-called pickling-liquor which is obtainedin wire-mills and galvanizingworks in cleaning iron rods, wire, or sheetiron with sulphuric or muriatio acid, and oxidize it with nitric acid or bleaching-powder, by which the protochloride of iron is changed into perchlori'de of iron. This liquor has to be kept acid by adding muriatic or sulphuric acid; but generally the pickling-liquor contains enough free acid. This oxidized liquor is brought to a strength of 12 Baum at 60 Fahrenheit, and twenty gallons of the same are mixed with twenty-five gallons of the original not oxidized liquor of a strength of 20 Baum, fifty gallons of brine of 24 Baum,
and five gallons of sulphuric acid, 50 Baum. Muriatic acid may'be used in place of sulphuric acid; but then about ten gallons of muriatic acid have to be used and a correspondingly smaller quantity of brine. The relative proportions of the'ingredients can be increased or diminished according to the quality of the material to be treated and the time within which the operation is to be com-' pleted. The best results are obtained if the liquor which is to be oxidized'is taken from.
the tubs in which muriatic acid has been used for pickling.
Having prepared the solution, it is heated in a wooden or lead lined vat, preferably by steam, to a temperature near the boilingpoint, and the material to be treated-about a pound for each gallon of solution-is immersed in the same and frequently stirred until the vegetable fibers have become brittle, so that the woolen fibers can be readily separated from them. The time to accomplish this varies with the material, temperature, and composition of the bath. At 200 Fahrenheit, and when sulphuric acid is used,
it takes about forty minutes, at 215 Fahren-' heit it takes about fifteen minutesfand if muriatic acid is used it takes still less time. Sulphuric acid and a lower temperature give, usually, the best results. The vegetable fibers are then washed out with water and the woolen fibers treated with a weak solution of an alkali, preferably ammonia, and then washed again with water. The woolen fibers are then dried and carded' and used again like new wool. The solution or bath can be used several times. A liquor which is most favorable for the rapid disintegration of the vegetable fibers, with the least injury to the woolen fibers and the color of the same, should contain about two per cent. of perchloride of iron, (or two and one-half per cent. of persulphate of iron,) four per cent. of protosulphate of iron, fifteen per cent. salt, and five per cent.- sulphuric acid. This description will enable those familiar with chemical processes to adapt waste liquors which contain in part or entirely salts of iron for the recovery of destroyed, while in the wool produced by my process, with liquors containing iron salts a portion of which is oxidized, the fiber of the wool is scarcely affected, and the colors, and more especially the black and other dark colors, are not changed at all, so that the re covered wool can be used over again without dyeing.
than the older ones, as it uses a material which is at present allowed to run to waste.
This process is not more expensive and brine is used.
\Vhat I claim is- The process herein described of recovering woolen fibers from rags containing woolen and vegetable fibers, which consists in treating them with a heated solution composed of oxidized pickling-liquor, unoxidized picklingliquor, brine, and sulphuric or muriatic acid, substantially as set forth.
In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing Witnesses.
KARL F. STAHL. Witnesses:
,7 M10. D. JONES,
JNo. S. TITTLE.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US420315A true US420315A (en) | 1890-01-28 |
Family
ID=2489234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US420315D Expired - Lifetime US420315A (en) | Process of cleaning wool |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US420315A (en) |
-
0
- US US420315D patent/US420315A/en not_active Expired - Lifetime
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