US107324A - Improved process op obtaining glycerine from soap-makers spent lyes - Google Patents
Improved process op obtaining glycerine from soap-makers spent lyes Download PDFInfo
- Publication number
- US107324A US107324A US107324DA US107324A US 107324 A US107324 A US 107324A US 107324D A US107324D A US 107324DA US 107324 A US107324 A US 107324A
- Authority
- US
- United States
- Prior art keywords
- soap
- makers
- glycerine
- improved process
- fat
- 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
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 title description 18
- 235000011187 glycerol Nutrition 0.000 title description 9
- 238000000034 method Methods 0.000 title description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000003760 tallow Substances 0.000 description 9
- 239000003513 alkali Substances 0.000 description 8
- 239000000243 solution Substances 0.000 description 7
- 239000000344 soap Substances 0.000 description 6
- 238000009835 boiling Methods 0.000 description 5
- 235000011121 sodium hydroxide Nutrition 0.000 description 5
- 239000003518 caustics Substances 0.000 description 4
- 239000012670 alkaline solution Substances 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 235000002639 sodium chloride Nutrition 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 235000014347 soups Nutrition 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 101100294184 Mus musculus Ninl gene Proteins 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
- C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
- C07C29/80—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D19/00—Recovery of glycerol from a saponification liquor
Definitions
- caustic alkali by which the glycerine is taken up and I afterward boil the resulting liquor with fresh tallow or fat, by which the alkali is absorbed, leaving a liquor, consisting of glycerine and water, and from which I obtain the glycerine by evaporating the water.
- the liquor composed of water, caustic s'oda,,and glyccrine, falls to the bottom, leaving the soap floating upon its surihcc.
- the quantity of the caustic-soda solution introduced to the soap is immaterial, provided it be sufficient, as an excessive quantity can do no injury.
- the caustic alkali being introduced in solution, it may be introduced in powder, with the same effect.
- the liquor left in the boiler may beuscd over and over again several times in the same manner, above described, as the caustic-alkaline solution in separating the water and glycerine from other charges of soap in the same or other boilers, and, for this purpose, may be pumped directly from the boiler in which it has been used into anotherboiler, or be drawn off into a suit-able receptacle, and pumped therefrom back into the sam'ekettlaafter a new batch of soaphas been produced therein; but, previous to every repetition of its use, it should be bleached by throwing into it a quantity of lime, reduced by-water to a pasty state, and afterward decanting it from the dime.
- this liquor in this way may be'repeated until, by testing a small quantity, by boiling with a suitable quantity of fresh tallow', to absorb'all of its alkali, thcrcsulting solution of glyceriug and water has a specific gravity 01- about-30 of Baums hydrom'eter, when the said liquor may be reduced with water to a suitable alkaline strength, to enable its alkali to be readily absorbed by tallow or fat, and be then boiled with tallow or fat, till what is left of :it shows no alkali by test, and, therefore, contains nothing but glycei'ine and water.
- a suilicient quantity of the tallow or fat must be used, and additions may be made until there is sufficient to absorb all the alkali, and it is obvious that any excess of tallow or fat will do no injury.
- the tallow or fat may be afterward converted into soup in the usual way.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Edible Oils And Fats (AREA)
- Fats And Perfumes (AREA)
Description
Zlbriirti fitters palm onto,
BENJAMIN r. A'BBITT, or NEW YORK/N; Y.
Letters Patent No. 107,324, dated September 13, 1870.
IMPROVED PROCESS OF OBTAINING GLYCERINE FROM SOAP-MAKERS SPENT LYES.
The Schedule referred to in these Letters Patent and making part ofthe same- To all whom 1' It may concern Be it known that I, BENJAMIN '1; BABBITT, of the city, county, and State of New York, have invented a new Process of Obtaining Glycerinc from Soap-makers Spent-Lyes; and I do hereby declare that the following is a full, clear,-and exact description of the same. i
In the manuiiicture of soap it has heretofore been customary, after the .boiling of the tallow or fat with the alkaline solution, to effect the separation from the soup of the spent lye containing the glycerinc, which has been'cxtractcd from vthe fallow or fat, by means oi'a solution of common salt.-
Some attempts have-been made to extract the glycerine from this solution, but no method that has been .hcrctofin'e tried has been made commercially profitable, and the solution has been commonly thrown away to waste.
In my invention, instead of using common salt to ciicct the separation of the soap from the spent lye, I
use caustic alkali, by which the glycerine is taken up and I afterward boil the resulting liquor with fresh tallow or fat, by which the alkali is absorbed, leaving a liquor, consisting of glycerine and water, and from which I obtain the glycerine by evaporating the water.
The process is conducted'in the following manner:
After the soap'has been formed in the usual way, by boiling thcinllow or fat with an alkaline solution, 1 pump into, or otherwise introduce among it in the boiler, which may be an ordinary kettle, a sufficient quantity of solution of caustic soda, of a density of about 35 of Baniiis hydromctcr, to take upall the water and glycol-inc.
On the contents of the boiler being allowed to cool,
the liquor, composed of water, caustic s'oda,,and glyccrine, falls to the bottom, leaving the soap floating upon its surihcc.
The quantity of the caustic-soda solution introduced to the soap is immaterial, provided it be sufficient, as an excessive quantity can do no injury. Instead of the caustic alkali being introduced in solution, it may be introduced in powder, with the same effect.
The liquor left in the boiler may beuscd over and over again several times in the same manner, above described, as the caustic-alkaline solution in separating the water and glycerine from other charges of soap in the same or other boilers, and, for this purpose, may be pumped directly from the boiler in which it has been used into anotherboiler, or be drawn off into a suit-able receptacle, and pumped therefrom back into the sam'ekettlaafter a new batch of soaphas been produced therein; but, previous to every repetition of its use, it should be bleached by throwing into it a quantity of lime, reduced by-water to a pasty state, and afterward decanting it from the dime.
The use of this liquor in this way may be'repeated until, by testing a small quantity, by boiling with a suitable quantity of fresh tallow', to absorb'all of its alkali, thcrcsulting solution of glyceriug and water has a specific gravity 01- about-30 of Baums hydrom'eter, when the said liquor may be reduced with water to a suitable alkaline strength, to enable its alkali to be readily absorbed by tallow or fat, and be then boiled with tallow or fat, till what is left of :it shows no alkali by test, and, therefore, contains nothing but glycei'ine and water.-
On evaporating the water from this by heat the glycerine remains. I
In the last-mentioned operation-of boiling with tub low or fat, a suilicient quantity of the tallow or fat must be used, and additions may be made until there is sufficient to absorb all the alkali, and it is obvious that any excess of tallow or fat will do no injury. The tallow or fat may be afterward converted into soup in the usual way.
\Vhat I claim as my inventiom ninl (b'siru in socure by Letters Patent, is-- The extraction of glycerine from soap-makers sponb lye, by treatment with caustic alkali, and subsequent boiling with tallow or fat, substantially as herein described.
B. T. BABBITT.
Witnesses FRED. HAYNES, R. E. RABEAU.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US107324A true US107324A (en) | 1870-09-13 |
Family
ID=2176800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US107324D Expired - Lifetime US107324A (en) | Improved process op obtaining glycerine from soap-makers spent lyes |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US107324A (en) |
-
0
- US US107324D patent/US107324A/en not_active Expired - Lifetime
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