DE38551C - Process for the desugarization of molasses and sugar syrups with simultaneous extraction of the salts contained in them as oxalic acid compounds - Google Patents
Process for the desugarization of molasses and sugar syrups with simultaneous extraction of the salts contained in them as oxalic acid compoundsInfo
- Publication number
- DE38551C DE38551C DENDAT38551D DE38551DA DE38551C DE 38551 C DE38551 C DE 38551C DE NDAT38551 D DENDAT38551 D DE NDAT38551D DE 38551D A DE38551D A DE 38551DA DE 38551 C DE38551 C DE 38551C
- Authority
- DE
- Germany
- Prior art keywords
- oxalic acid
- molasses
- acid compounds
- sugar
- alcohol
- 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
- MUBZPKHOEPUJKR-UHFFFAOYSA-N oxalic acid Chemical class OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 title claims description 24
- 235000013379 molasses Nutrition 0.000 title claims description 14
- 150000003839 salts Chemical class 0.000 title claims description 7
- 239000011780 sodium chloride Substances 0.000 title claims description 7
- 235000020374 simple syrup Nutrition 0.000 title claims description 5
- 238000000034 method Methods 0.000 title claims description 4
- 238000000605 extraction Methods 0.000 title claims 2
- OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 13
- 235000019441 ethanol Nutrition 0.000 claims description 12
- 235000000346 sugar Nutrition 0.000 claims description 12
- 235000006408 oxalic acid Nutrition 0.000 claims description 5
- 239000002244 precipitate Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 230000036826 Excretion Effects 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 claims 1
- 230000029142 excretion Effects 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 238000004090 dissolution Methods 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 235000015450 Tilia cordata Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
- C13B35/00—Extraction of sucrose from molasses
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Saccharide Compounds (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
KLASSE 89: Zucker- und Stärkefabrikation.CLASS 89: Sugar and starch production.
Patentirt im Deutschen Reiche vom 30. März 1886 ab.Patented in the German Empire on March 30, 1886.
Das vorliegende Verfahren beruht auf den beiden Thatsachen, dafs:The present proceedings are based on the two facts that:
1. die Melassen und Zuckersyrupe in concentrirtem Methylalkohol oder Holzgeist vollständig löslich sind, und dafs1. The molasses and sugar syrups in concentrated form Methyl alcohol or wood spirit are completely soluble, and that
2. aus dieser Lösung Alkohol und Oxalsäure die Salze der Melasse als oxalsäure Salze neben dem Zucker ausscheiden und die organischen Säuren und stickstoffhaltigen Bestandtheile in Lösung lassen. . .2. From this solution alcohol and oxalic acid form the salts of molasses as oxalic acid salts excrete alongside the sugar and the organic acids and nitrogenous constituents leave in solution. . .
Das auf diesen beiden Thatsachen beruhende Verfahren besteht im wesentlichen in Folgendem :The procedure based on these two facts consists essentially in the following :
Die zur Entzuckerung gelangenden Melassen oder Zuckersyrupe werden mit Methylalkohol oder auch einem Gemenge von Methylalkohol und Aethylalkohol in solchem Verhältnifs versetzt, dafs die Melassen sich in dem Zusätze auflösen und bei den späteren Operationen als Melassen nicht wieder ausscheiden. Hierzu würden beispielsweise für 50 kg Melasse von einer Polarisation von ca. 50 pCt. 0,04 hl Methylalkohol schon genügen. Die so erhaltene vollständige Auflösung der Melasse wird mit in Alkohol gelöster Oxalsäure versetzt und sodann ein Ueberschufs Aethylalkohol zugegeben. Die Quantität der zuzusetzenden Oxalsäure richtet sich hierbei nach der Quantität der in der Melasse enthaltenen Salze. Die sich bildenden Oxalsäuren Verbindungen scheiden sich als Niederschlag aus, während der Zucker bei dem Zusatz des überschüssigen Aethylalkohols als in letzterem unlöslicher Niederschlag mit zur Abscheidung gelangt. Es kann auch der Zusatz von Oxalsäure mit der gröfseren Menge des Aethylalkohols gleichzeitig erfolgen, in welchem Falle die Salze und der Zucker neben einander ausgeschieden werden. Den erhaltenen und von der Flüssigkeit abgeprefsten Niederschlag löst man in Wasser auf und erhält durch einen erneuerten Zusatz von Alkohol die Oxalsäuren Salze allein als Niederschlag, während der vorhandene Zucker -jn Lösung bleibt. Etwaige in dieser Zuckerlösung noch vorhandene Spuren von Oxalsäure werden durch Kalk gefällt. Die Gewinnung des Alkohols und des Zuckers geschieht auf bekanntem Wege.The molasses or sugar syrups used for desugarization are mixed with methyl alcohol or mixed with a mixture of methyl alcohol and ethyl alcohol in such a ratio, that the molasses dissolve in the additive and in the later operations not excreted again as molasses. For this purpose, for example, for 50 kg of molasses from a polarization of approx. 50 pCt. 0.04 hl methyl alcohol is enough. The thus obtained Complete dissolution of the molasses is mixed with oxalic acid dissolved in alcohol and then an excess of ethyl alcohol is added. The quantity of the to be added Oxalic acid depends on the quantity of salts contained in the molasses. The oxalic acid compounds that are formed separate out as a precipitate while the sugar with the addition of the excess ethyl alcohol is more insoluble in the latter Precipitation arrives with the deposition. It can also have the addition of oxalic acid the larger amount of ethyl alcohol take place at the same time, in which case the salts and the sugars are excreted side by side. The received and from the liquid squeezed precipitate is dissolved in water and obtained by a renewed Addition of alcohol to the oxalic salts alone as a precipitate, while the existing Sugar remains in solution. Any in this Sugar solution Any traces of oxalic acid that are still present are precipitated by means of lime. the The alcohol and the sugar are obtained in a known way.
Der wesentliche Vorzug des beschriebenen Verfahrens besteht neben der grofsen Einfachheit der dabei in Anwendung kommenden Operationen im wesentlichen auch darin, dafs durch Anwendung des Lösungsmittels (des Methylalkohols) in concentrirter Form ein Zuckerverlust, welcher durch Auflösen von Melassen in Wasser oder in verdünntem Alkohol entstehen würde, vermieden und aus den erhaltenen Laugen ein Zuckersaft mit einem Reinheitsquotienten von über 99 ° gewonnen wird, so dafs die aus den Melassen erzielte Ausbeute über 80 pCt. des in denselben enthaltenen reinen Zuckers ausmacht. Aufserdem besitzen die dabei als oxalsäure Salze abfallenden Nebenproducte als in derThe main advantage of the process described is its great simplicity of the operations involved in this essentially also in the fact that the use of the solvent (des Methyl alcohol) in concentrated form leads to a loss of sugar, which is caused by the dissolution of Molasses formed in water or in diluted alcohol would be avoided and out A sugar juice with a purity quotient of over 99 ° was obtained from the alkaline solutions obtained so that the yield obtained from the molasses is over 80 pCt. the in the same contained pure sugar. They also have it as oxalic acid Salts falling off by-products than in the
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE38551C true DE38551C (en) |
Family
ID=314246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT38551D Expired - Lifetime DE38551C (en) | Process for the desugarization of molasses and sugar syrups with simultaneous extraction of the salts contained in them as oxalic acid compounds |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE38551C (en) |
-
0
- DE DENDAT38551D patent/DE38551C/en not_active Expired - Lifetime
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