US413616A - Process of purifying salt recovered from spent soap-lyes - Google Patents
Process of purifying salt recovered from spent soap-lyes Download PDFInfo
- Publication number
- US413616A US413616A US413616DA US413616A US 413616 A US413616 A US 413616A US 413616D A US413616D A US 413616DA US 413616 A US413616 A US 413616A
- Authority
- US
- United States
- Prior art keywords
- salt
- cylinder
- valve
- lyes
- soap
- 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
- 239000011780 sodium chloride Substances 0.000 title description 76
- 150000003839 salts Chemical class 0.000 title description 74
- 238000000034 method Methods 0.000 title description 14
- 235000002639 sodium chloride Nutrition 0.000 description 74
- PEDCQBHIVMGVHV-UHFFFAOYSA-N glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 24
- 235000011187 glycerol Nutrition 0.000 description 24
- 239000000243 solution Substances 0.000 description 20
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 18
- 235000011121 sodium hydroxide Nutrition 0.000 description 12
- 239000007864 aqueous solution Substances 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000012047 saturated solution Substances 0.000 description 4
- 239000000344 soap Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 230000001464 adherent Effects 0.000 description 2
- 239000012267 brine Substances 0.000 description 2
- 230000003247 decreasing Effects 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D3/00—Halides of sodium, potassium or alkali metals in general
- C01D3/04—Chlorides
- C01D3/08—Preparation by working up natural or industrial salt mixtures or siliceous minerals
Definitions
- .I A B C D E F are small tanks or tubs placed ata higher elevation than cylinder G, within 3o which latter is journaled a vertical rotatable .i shaft l-I is revolved by means of gearing J in l order to mix the contents of cylinder G.
- K is a false bottom of the nature of a sieve, composed of a perforated metal plate covered with wire-gauze orcan vas, or both.
- a second perforated plate may be placed ⁇ on top of the l" f gauze or cloth for protection of same from i .i Y i abrasion.
- a closedv cylinder or vessel L which y communicates with cylinder G by la pipe N, tted with a valve n, and a lbranch pipe O therefrom, also fitted with a valve o, leads -to an air-pump P, capable of producing air pressure or vacuum in cylinder L.
- Another branch pipe Q communicates also with cylinder L.
- a pipe R,'iitted with valve S leads from the bottom of cylinderL to top of tanks A F, with a .valve over each tank, as shown.
- Cylinders AF communicate with the mainv pipe T, leading to top of cylinder G.
- V is a door to cylinder G for the purpose of taking out the purified salt.
- a branch pipe W fitted with a valve X, as shown, leads to a Store-tank, referred to hereforcing in air by means of 'pump P through the pipe O.
- the cylinder L is then exhausted Y by the air-pump P, and at the Same time valve N is opened (the other valves being closed) and the glycerine or lye adhering to the salt for the most part drawn through pipe M into cylinder L.
- Valve N is then closed and valve X opened, and theglycerine or lye forced to store-tank through pipe W by means of air-pressure from pump P.
- Y The vessels A F are charged with a Saturated aqueous solution of common salt.
- the lower valve of tankA is opened and the solution allowed to flow into the salt in cylinder G.
- the Whole is then mixed together by mixers I.
- yValve N is then opened and the liquor drawn into cylinder L by means of the airpump P.
- Valve N is then closed and valve X opened, and the liquor forced by means of the pump P through pipe W to the storetank.
- the liquor from B is now allowed to flow down to the salt in cylinder G and mixed with the Saltth erein,the valve N againopened, and the liquor drawn into cylinder L by the pump.
- the valve S is then opened and the liquor in L forced up into cylinder or vessel AA.
- the salt receives six successive purifications by solutions of salt, finishing always with a fresh charge of such solution, but only using one fresh charge for every batch of salt, resulting in economy of labor, as each charge of the aqueous solution is used a number of times (being entirely effective in repeated use) and requiring less evaporation in the filial process than does the method where each charge of the solution is used only once.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Detergent Compositions (AREA)
Description
(No IQIodel)l I I l A. DOMEIER 8v 0.. C. VHAG]'|1V[].\T1\. v
PRGBSS 0F PURI-FYING SALT REOVERED PROM SPENT SOAP LYBS.
10.413.616- Patented Oct. 22, 1889.
To a/ZZ whomv it may concern: Be itknown that we,-ALBERT DoMEIER, l merchant, and OTTo CHRISTIAN HAGEMANN,
mechanical engineer, both of London, Engf' land, have invented a new and useful Process l of Washing or 'Purifying the Salt Recovered l. from Spent Soap-Lye During theManufacture of Crude Glycerine therefrom, of which the following ris a Specification i during the concentration of Soap-lye for the manufacture of crude glycerine and in the distillation of such crude glycerine iscontaminated with thelye or crude glycerine as an impurity; andthe object of this invention is to recover such lye or glycerine from said Salt and at the same time free the salt from these impurities and render it clean and merchantable and lit for use again in the manufacture of soap. v
In carrying'- out our process we mayv make use of the improved apparatus shown inthe accompanying drawings, whichA process we will describe in connection with the description of said apparatus; but said apparatus -willV form the subject-matter of another apu plication for Letters Patent.
.I A B C D E F are small tanks or tubs placed ata higher elevation than cylinder G, within 3o which latter is journaled a vertical rotatable .i shaft l-I is revolved by means of gearing J in l order to mix the contents of cylinder G.
K is a false bottom of the nature of a sieve, composed of a perforated metal plate covered with wire-gauze orcan vas, or both. A second perforated plate may be placed `on top of the l" f gauze or cloth for protection of same from i .i Y i abrasion. Below the level of the sieve is 4o placed a closedv cylinder or vessel L, which y communicates with cylinder G by la pipe N, tted with a valve n, and a lbranch pipe O therefrom, also fitted with a valve o, leads -to an air-pump P, capable of producing air pressure or vacuum in cylinder L. Another branch pipe Q communicates also with cylinder L. A pipe R,'iitted with valve S, leads from the bottom of cylinderL to top of tanks A F, with a .valve over each tank, as shown. Cylinders AF communicate with the mainv pipe T, leading to top of cylinder G.
The salt which is thrown outof solution shaft H, having blades or mixers l I. The' PATENT OFFICE.
'ALBERT DOMEIERZAND oLTo CHRISTIAN IIAcEnANN, or LoNDoN, ENGLAND,
AsSIcNoRs To JAMES s. KIRK a co., or oHIcAco, ILLINOIS.'
Processor PURIFYING SALT REcovERrD FROM SPINT soAP-LYES.
SPECIFICATION formingpart of Letters Patent No. 413,616, dated October 22, 1889.
Application filed December v21, 1888. Serial No. 294,307. (No Specimens.)
V is a door to cylinder G for the purpose of taking out the purified salt. i
A branch pipe W, fitted with a valve X, as shown, leads to a Store-tank, referred to hereforcing in air by means of 'pump P through the pipe O. The cylinder L is then exhausted Y by the air-pump P, and at the Same time valve N is opened (the other valves being closed) and the glycerine or lye adhering to the salt for the most part drawn through pipe M into cylinder L. Valve N is then closed and valve X opened, and theglycerine or lye forced to store-tank through pipe W by means of air-pressure from pump P. Y The vessels A F are charged with a Saturated aqueous solution of common salt. The lower valve of tankA is opened and the solution allowed to flow into the salt in cylinder G. The Whole is then mixed together by mixers I. yValve N is then opened and the liquor drawn into cylinder L by means of the airpump P. Valve N is then closed and valve X opened, and the liquor forced by means of the pump P through pipe W to the storetank. The liquor from B is now allowed to flow down to the salt in cylinder G and mixed with the Saltth erein,the valve N againopened, and the liquor drawn into cylinder L by the pump. The valve S is then opened and the liquor in L forced up into cylinder or vessel AA. The liquor from C isnow allowed to iiow down into the salt in cylinder G, the shaft again revolved to mix the mass, the valve N again opened, and the liquor drawn into cylinder L by the pump. The valve S is then opened and the liquor forced up into cylinder B. The Same operation is repeated with the liquor in each of the cylinders D, E, and
F, finally leaving cylinder F empty. This isV recharged with more of the solution of salt, which is allowed vto flow down into the salt in cylinder G, mixed therewith, drawn into cylinder L, and forced therefrom into cylinder F. Air is now drawn 'through the Salt in cylinder G until it is dry, or nearly so, when IOO door Vis opened and the purified salt removed.
The foregoing describes the operation on the first batch of salt Worked or purified in the apparatus. In the case of succeeding batches the operations are the same, theliquor from A, after being used to purify the salt, being forced direct into store-tank through pipe W, the liquor from B being (after use on the salt in the same way) forced into A, C into B, D into C, E into D, and F into E, leaving F empty to receive the last or finishing charge of solution of salt. It will thus be seen that the salt receives six successive purifications by solutions of salt, finishing always with a fresh charge of such solution, but only using one fresh charge for every batch of salt, resulting in economy of labor, as each charge of the aqueous solution is used a number of times (being entirely effective in repeated use) and requiring less evaporation in the filial process than does the method where each charge of the solution is used only once.
We do not confine ourselves to the number of such purifications, as in some instances two or three are sufficient; but we have found of successive washings with such saltingpoint liquor, and, finally, one with pure brine. The lye or glycerine adhering to the salt when first placed in cylinder G is taken up or dissolved therefrom by the saturated solution of salt, (which will dissolveV lye or glycerine, but, being already saturated with salt, is incapable of dissolving any more salt,) which becomes richer in lye or glycerine at each successive time of using, and eventually finds its way into the store-tank so described. At the same time the 'salt is thoroughly cleansed from adherent impurities by the successive treatments with solution of salt, being finally dried by the passage of air through it, as described, and rendered merchantable and fit for nearly everypurpose for which salt is used.
We claim- The herein-described process of purifying salt recovered from spent soap-lye during concentration or the manufacture of crude glycerine therefrom, which consists in subjecting a convenient quantity of the salt to a series of Washings with separate charges of a saturated aqueous solution i of salt, said charges containing decreasing quantities of glycerine in solution, the first of said charges being drawn off with its dissolved glycerine and a fresh charge of a saturated solution of salt free of glyceriue added to the series in lieu thereof foreach quantity of salt treated,
said fresh charge being used for final treatment, whereby each quantity of salt is subjected to repeated washings and the separate charges of the solution are utilized repeatedl Y. v
5 ALBERT DOMEIER.
OTTO CHRISTIAN HAGEMANN. Witnesses:
MARTIN B. WALLER,
U. S. Vce-Consul-General, London. A. G. MossARD.
1151s hereby eertineiheiiietters Petent Ne.- 413,616, greeted oeteber 22,1889, upon i the application of Albert Domeier andOtto Christian Hagemann, of London, England, for an improvement in the Process of Purifying Salt Recovered from Spent Soap-Lyes, l
Was erroneously issued to' James S. Kirk & Co. as sole owners of the said invention;
that said Letters Patent should have been issued to said Albert Doineiei" and James S.
Kirk de Oo. jointly, each being owner of one-half interest, asl shown by the record of assignments in this O fee; and that said Letters Patent shonld be read With this oorreotion therein that the same may conform to the record ofthe oase in the Patent Office.
Signed, oountersigned, and sealed this 5th day of November, A. D. 1889.
[SEAL] e GYRUS BUSSEY,
Assistant Secretary ofthe Interim'. Gountersigned G. E. MITCHELL,
Coinmissionei` of Patents.
Publications (1)
Publication Number | Publication Date |
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US413616A true US413616A (en) | 1889-10-22 |
Family
ID=2482547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US413616D Expired - Lifetime US413616A (en) | Process of purifying salt recovered from spent soap-lyes |
Country Status (1)
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US (1) | US413616A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3278275A (en) * | 1963-02-14 | 1966-10-11 | Dow Chemical Co | Countercurrent washing of sodium hydroxide from a salt slurry |
US3403980A (en) * | 1964-12-07 | 1968-10-01 | Frank R. Litterio | Automatic repetitive liquid-liquid extractor |
-
0
- US US413616D patent/US413616A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3278275A (en) * | 1963-02-14 | 1966-10-11 | Dow Chemical Co | Countercurrent washing of sodium hydroxide from a salt slurry |
US3403980A (en) * | 1964-12-07 | 1968-10-01 | Frank R. Litterio | Automatic repetitive liquid-liquid extractor |
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