US1558554A - Process of separating sugar from residual molasses - Google Patents

Process of separating sugar from residual molasses Download PDF

Info

Publication number
US1558554A
US1558554A US758757A US75875724A US1558554A US 1558554 A US1558554 A US 1558554A US 758757 A US758757 A US 758757A US 75875724 A US75875724 A US 75875724A US 1558554 A US1558554 A US 1558554A
Authority
US
United States
Prior art keywords
sugar
molasses
separating
acetic acid
residual molasses
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
Application number
US758757A
Inventor
Christofer G Leonis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US758757A priority Critical patent/US1558554A/en
Application granted granted Critical
Publication of US1558554A publication Critical patent/US1558554A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C13—SUGAR INDUSTRY
    • C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B35/00—Extraction of sucrose from molasses

Definitions

  • This invention relates.to a process of. separating sugar in crystallized form from the various organic and inorganic impurities contained inany liquors or dry substance containing sugar, and particularly from the 5 discard molasses from the Stefi'en process.
  • the amount of sugar precipitated in the form of crystals is 900 to 1,040 pounds per ton of molasses.
  • the purity of the precipitate sugar amounts to from 94 to 99 per cent or more.
  • the obtained. sugar is dried under vacuum and at the same time, the solvent is evaporated and recovered-and can be usedindefinitely over again.
  • the sugar thus ob-' tained is remelted with the addition of a 4 little milk of lime, filtered, and' boiled to mother liquor is mixed with from 1 to 2 per cent of sulfuric acid, and distilled.
  • the acid carbonizes the organic materials, leaving the acetic acid in a pure state.
  • the acetic acid 1s collected in a pure and concentrated c0ndition and is ready to be used over' again.
  • maining carbon can be used for filtering purposes.
  • the process of separating sugar from molasses which comprises treating dried residual molasses from the Stefienprocess obtain the potassium as sulfate, and the retherein, and washing the sugar with grain, thus producing refined sugar.

Description

Patented 0a. 21, 1925.
UNITED STATES PATENT- orrlcs.
cnms rom a. mom, or sun Laxn cm, prim.
morass 0F SEIARLTIHG SUGAR FRO! RRIDUAL -IOLASSB.
lo Drawing.
T 0 all whom it may concern:
Be it known that I, Cumsrorm G. Looms, a citizen of the United States, residing-at Salt Lake City, in the county of Salt Lake and State of Utah, have invented certain new and useful Improvements in Processes of Separating Sugar from Residual Molasses, of which the following is a specification.
This invention relates.to a process of. separating sugar in crystallized form from the various organic and inorganic impurities contained inany liquors or dry substance containing sugar, and particularly from the 5 discard molasses from the Stefi'en process.
by a special apparatus consisting of a steel belt conveyor which is heated up to 160 0.,
and cooled artificially, rendering the dried molasses very friable and pulverulent. The
' dried molasses so obtained is pulverized and 0 treated with concentrated acetic acid of 99 per cent to 99% per cent. Inpractice, the amount of acid used varies from 150 to 200 per cent of the weight'ofthe dried molasses. The temperature iskept between 15 and 30 C. The time of the complete precipitation of the sugar in crystal form is from 2 to 24 hours, but the average time required is six hours.
. By means of this process, the amount of sugar precipitated in the form of crystals is 900 to 1,040 pounds per ton of molasses.
The purity of the precipitate sugar amounts to from 94 to 99 per cent or more. V
The mixing of the powdered molasses and concentrated. acetic acid is accomplished by a special mixer, which is provided with a feeder-regulator and mixing device apparatus and the entire apparatus is. working Application ma December as, 1924. Serial 10.758557.
under vacuum. After the of the dry molasses and concentrated acetic acid is com-' pleted, the mixture is transferred by gravity into an ordinary sugar house crystallizer with the difference that it is working ,under 'vacuum system where it remains about six hours to complete the crystallization of the sugar. The mass from this crystallizer is droppedv into a Special vacuum filter, where the sugar'is' freed from the mother liquor,
The small amount of mother -liquor.sur-.
rounding the sugar crystal is eliminated by Washing the sugar with toluel, or benzene,
or alcohol, or any other solvent, which is soluble in acetic acid, but cannot dissolve the sugar. The obtained. sugar is dried under vacuum and at the same time, the solvent is evaporated and recovered-and can be usedindefinitely over again. The sugar thus ob-' tained is remelted with the addition of a 4 little milk of lime, filtered, and' boiled to mother liquor is mixed with from 1 to 2 per cent of sulfuric acid, and distilled. The acid carbonizes the organic materials, leaving the acetic acid in a pure state. The acetic acid 1s collected in a pure and concentrated c0ndition and is ready to be used over' again.
The loss of acid by this distillation recovery amounts to not more than 2 per cent. In
the distilling apparatus there remains an organic carbon from which, by lixiviation, I
maining carbon can be used for filtering purposes.
While I have described in detail the preferred practice of my process, it is to be understood that the details of procedure may be widely varied without departing from the spirit of the invention or the scope of the subjoined claims.
I claim:
'1. The process of separating sugar from molasses which comprises treating dried residual molasses with concentrated acetic acid to precipitate the sugar, separating the precigitated sugar from the residue containe alcohol. 4
' 2. The process of separating sugar from molasses which comprises treating dried residual molasses from the Stefienprocess obtain the potassium as sulfate, and the retherein, and washing the sugar with grain, thus producing refined sugar. The 75 with concentrated acetic acid to precipitate the sugar, separating the precipitated sugar from the residue contained therein, and washing the sugar with alcohol.
3. The process of separating sugar from molasses which comprises treating dried residual molasses with from 150 to 200 per cent by weight of concentrated acetic acid to precipitate the sugar, separating the p1'ecipitated sugar fromthe residue contained therein, and washing the sugar with alcohol.
In testimony whereof, I afiix my signa-
US758757A 1924-12-29 1924-12-29 Process of separating sugar from residual molasses Expired - Lifetime US1558554A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US758757A US1558554A (en) 1924-12-29 1924-12-29 Process of separating sugar from residual molasses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US758757A US1558554A (en) 1924-12-29 1924-12-29 Process of separating sugar from residual molasses

Publications (1)

Publication Number Publication Date
US1558554A true US1558554A (en) 1925-10-27

Family

ID=25052992

Family Applications (1)

Application Number Title Priority Date Filing Date
US758757A Expired - Lifetime US1558554A (en) 1924-12-29 1924-12-29 Process of separating sugar from residual molasses

Country Status (1)

Country Link
US (1) US1558554A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE948770C (en) * 1952-07-13 1956-09-06 Braunschweigische Maschb Ansta Process for obtaining sugar from practical anhydrous mixtures of sugar-non-sugar substances, preferably for desiccating molasses
US3325308A (en) * 1963-06-19 1967-06-13 Donald F Othmer Process for the refining of sugar with two or more solvents
EP0113592A2 (en) * 1982-12-29 1984-07-18 Union Sugar Company Improved method of recovering sucrose
US5148569A (en) * 1990-10-17 1992-09-22 Bissell Inc. Debris impeller

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE948770C (en) * 1952-07-13 1956-09-06 Braunschweigische Maschb Ansta Process for obtaining sugar from practical anhydrous mixtures of sugar-non-sugar substances, preferably for desiccating molasses
US3325308A (en) * 1963-06-19 1967-06-13 Donald F Othmer Process for the refining of sugar with two or more solvents
EP0113592A2 (en) * 1982-12-29 1984-07-18 Union Sugar Company Improved method of recovering sucrose
EP0113592A3 (en) * 1982-12-29 1985-01-16 Union Sugar Company Improved method of recovering sucrose
US5148569A (en) * 1990-10-17 1992-09-22 Bissell Inc. Debris impeller

Similar Documents

Publication Publication Date Title
US2346140A (en) Production of pure salts from trona
US3649185A (en) Method for removing impurities in the bayer process
US2780520A (en) Carbonation of recycle liquor in sodium sesquicarbonate production
US3207571A (en) Process for preparing cesium compounds from cesium alum
US2687339A (en) Process for the treatment of liquors to recover potassium and magnesium values
US3233983A (en) Calcium control in crystallization of sodium sesquicarbonate
US1558554A (en) Process of separating sugar from residual molasses
US3479133A (en) Production of soda ash from trona
US2895794A (en) Process for recovering potassium values from kainite
US1816285A (en) Process of converting phosphate rock into soluble compounds and of separating its content of lime and phosphoric acid
US2758912A (en) Process for producing a substantially sulfate-free and potassium-free magnesium chloride solution
US2862788A (en) Process for purifying impure solid-phase kainite
US2809093A (en) Production of potassium sulfate from langbeinite
US2574165A (en) Process for the manufacture of the gamma isomer of hexachlorocyclohexane
US4334885A (en) Production of potassium chloride from langbeinite
US2738254A (en) Process for the separation of sodium tetraborate from liquors containing both sodium tetraborate and potassium chloride
US2557326A (en) Purification and recovery of crystals of metal salts
US1949738A (en) Manufacture and separation of thiourea from ammonium thiocyanate
US1794553A (en) Process of recovering salts from minerals
US1570047A (en) Recovery of thiocyanates and thiosulphates
SU1664739A1 (en) Method of producing metal iodides and iodates
US1998471A (en) Process of purifying concentrated caustic soda solutions
US3065052A (en) Purification of strontium nitrate
US4256714A (en) Basic aluminum nitrate crystallization
US1310413A (en) eberhardt