WO2001056403A1 - Procede pour dissoudre en continu du sucre cristallin dans un solvant, de preference de l'eau, et reacteur pour la mise en oeuvre de ce procede - Google Patents

Procede pour dissoudre en continu du sucre cristallin dans un solvant, de preference de l'eau, et reacteur pour la mise en oeuvre de ce procede Download PDF

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Publication number
WO2001056403A1
WO2001056403A1 PCT/EP2001/000881 EP0100881W WO0156403A1 WO 2001056403 A1 WO2001056403 A1 WO 2001056403A1 EP 0100881 W EP0100881 W EP 0100881W WO 0156403 A1 WO0156403 A1 WO 0156403A1
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WO
WIPO (PCT)
Prior art keywords
sugar
solvent
feed
flow tube
sediment
Prior art date
Application number
PCT/EP2001/000881
Other languages
German (de)
English (en)
Inventor
Raimund Kalinowski
Thomas Herold
Original Assignee
Tuchenhagen Gmbh
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
Priority claimed from DE20001749U external-priority patent/DE20001749U1/de
Application filed by Tuchenhagen Gmbh filed Critical Tuchenhagen Gmbh
Publication of WO2001056403A1 publication Critical patent/WO2001056403A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L29/00—Foods or foodstuffs containing additives; Preparation or treatment thereof
    • A23L29/30—Foods or foodstuffs containing additives; Preparation or treatment thereof containing carbohydrate syrups; containing sugars; containing sugar alcohols, e.g. xylitol; containing starch hydrolysates, e.g. dextrin
    • A23L29/32—Processes or apparatus for dissolving of sugars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F21/00—Dissolving
    • B01F21/20—Dissolving using flow mixing

Definitions

  • the invention relates to a process for the continuous dissolution of crystalline sugar in a solvent, preferably water, in which, in the course of the dissolving process, depending on the desired sugar concentration in the sugar solution to be produced, the sugar syrup, crystalline sugar and solvent are continuously fed in the required ratio and the appropriate amount of sugar syrup produced are continuously removed.
  • a solvent preferably water
  • the so-called "batch” solver should be mentioned here ([*] ⁇ Section 4.2.6.5.1 "Discontinuous
  • the sugar to be dissolved is first stored in a silo.
  • a dissolving tank equipped with a suitable mixing and weighing device, serves to dissolve the sugar for a production batch.
  • First water is weighed into the dissolving tank, then sugar is added by weight, and then the sugar is dissolved in the water by intensive mixing, as a rule with a suitable stirrer device.
  • the sugar solution obtained in this way is filtered and, if necessary, briefly heated.
  • the transport line, the filter and any heat exchangers are "sweetened" with retained recipe water.
  • Discontinuous processes offer economic and technological advantages in which the total quantity of loose sugar delivered is dissolved in one batch and further processed.
  • This so-called large-capacity solver is a stirred tank in which a silo train of sugar is directly dissolved in a liquid supply (water) by intensive mixing, so that it can be further processed depending on the task or purpose ([ * ] • Section 4.2.6.5.2 " United solver technology ").
  • a continuously working sugar remover consists of a mixing container that has a capacity of approximately 10 to 20% of the hourly dissolving capacity contains.
  • the sugar conveyed from a storage silo into a preliminary container is continuously dosed into the mixing container by means of a dosing channel, dosing screw or rotary feeder.
  • the water supply is regulated according to the measured sugar concentration via a metering valve.
  • the sugar suspended in the water is partially dissolved by circulation with the aid of a centrifugal pump, whereby strong turbulence is generated by using certain internals such as injector nozzles or so-called turbulence pipes.
  • a part of the sugar solution is continuously separated from the mixture of sugar and sugar solution by a suitable separation device.
  • the continuously removed sugar solution may flow through a redissolving chamber in which the remaining sugar crystals are completely dissolved.
  • a heat exchanger in the redissolving chamber, the operating temperature of which is set via a temperature controller.
  • the concentration of the dissolved sugar is preferably measured in the bypass with a refractometer or density meter and kept constant by means of a downstream regulator that controls the water supply via a control valve.
  • An outlet valve arranged in the discharge line for sugar syrup is opened as soon as the set target concentration is reached; the finished sugar solution then leaves the dissolver. If, on the other hand, the value falls below the set target concentration, the outlet valve remains closed and the sugar solution is circulated until the target concentration is reached by adding water.
  • the apparatus for post-treatment or further treatment can be made smaller than in the so-called “batch” processes.
  • continuously operating sugar dissolvers are the most economical solution at the moment.
  • the continuously operating sugar dissolvers are relatively complex in terms of their regulation, the noise level of their mixing devices is relatively high, and With approx. 5 kWh p "o tonne of dissolved sugar (5 kWh / t), they have a relatively high specific energy requirement. In addition, the control options are poor in terms of their output. For this reason, behind the continuously operating sugar solver there are always simple syrups. Storage tanks, so that a sufficiently safe supply of sugar syrup is ensured even with strongly fluctuating purchase performances.
  • a continuously working method for dissolving a crystalline or powdery mass in liquid, for example sugar in water in which a paste consisting of the solvent and the mass into the solvent to introduce the mass into the flowing solvent is metered in according to the desired concentration and in which the resulting mixture is passed over a solution section until the mass is completely dissolved.
  • the device for carrying out the method is characterized by an inlet funnel for the mass, a device for supplying solvent to the dry mass, a metering pump downstream of this device, a line carrying the solvent, into which the outlet of the metering pump opens, and one this mouth connecting solution route.
  • the known device is relatively complex on the one hand, since a total of four pumps, the piping required for this and a sufficiently long solution path are required.
  • the device has a relatively high energy requirement, which in itself results from the operation of the pumps and furthermore from the fact that a slurry consisting of the solvent and the mass passes through a first pipeline section and after subsequent addition of solvent into the slurry in accordance with the desired concentration, the resulting mixture must be conveyed over the downstream solution section until the mass is completely dissolved.
  • DE-AS 10 34 469 is a flow-dissolving system for the production of saturated, suitable for feeding flow-through sugar cookers with an intensely heated overflow pot, supplied with crystal sugar and water in controlled proportions in equal quantities.
  • This system is characterized firstly by a long flow duct system - preferably spiraling or composed of several concentric flow paths connected in series - with a cross circulation opposite the main flow direction, and secondly by an overflow arranged after the overflow pot Basin with associated heated syrup feed head.
  • the idea of the invention is essentially based on the fact that a sediment of crystalline sugar with a constant bed height is maintained in the solvent by supplying the crystalline sugar inside or above a sediment.
  • This bed of sedimented crystalline sugar is flowed through by the solvent against the force of gravity at a speed v which remains below a limit speed v G whirling up the sediment in the solvent.
  • the proposed method provides for the sediment to be maintained by supplying the crystalline sugar above the sediment This type of introduction of the crystalline sugar results in an incredibly simple reactor for carrying out the process.
  • the method provides for the sediment to be maintained by supplying the crystalline sugar within the sediment.
  • Dispensing with any mechanical energy supply that promotes the intensity of the solution process results in a very simple process, the implementation of which is reflected in an equally simple reactor. Since the flow rate of the sedimented crystalline sugar is set in such a way that the sediment is not whirled up by this means that no special measures are required to separate the as yet unresolved sugar crystals from the sugar syrup.
  • the proposed method thus enables the sugar to be dissolved in the solvent in an energetically favorable manner and in terms of apparatus very simply.
  • the required flow-through height and the resulting reaction length of the flow tube can easily be adapted to the existing or desired mass transfer conditions.
  • the sugar to be dissolved is introduced into the flow pipe via a feed arrangement for sugar which engages in the flow tube in the region between the feed and distribution device for the solvent and the discharge line for sugar syrup, where the undissolved sugar initially sediments.
  • the feed line for the solvent opens into the lower end of the flow tube, and in this area, directly after this junction, the feed and distribution device for this solvent is provided, so that the sedimented layer of undissolved sugar, similar to a so-called fixed bed , uniformly over the entire cross-sectional area of the flow tube, essentially against gravity, from below above, the solvent, m usually water, flows through. Above the undissolved sugar sedimenting during stationary operation of the flow tube, the remaining part of the flow tube is completely filled with the sugar solution produced, a more or less sharply defined separation layer being formed between the undissolved sugar and the sugar solution located above it.
  • the space required for the proposed reactor taking into account the traffic area for operation and maintenance, is approximately the same as that of conventional continuous sugar dissolvers, it is significantly smaller than that of the other conventional batch systems and large-volume dissolvers.
  • the reactor also works very quietly since it has only a few small drives. Its principle of action is based on a very large concentration gradient and an extremely large surface area between crystalline sugar and dissolved sugar. Due to the large masses, the system works sluggishly and with high precision. Since the solution runs counter to the supply of sugar and counter to the direction of gravity, the crystalline sugar is constantly in flux. The finest parts of the sugar are located near the bottom of the solvent, the undissolved sugar crystals at the top of the boundary layer.
  • Another embodiment of the proposed reactor provides, with regard to the point of introduction for the crystalline sugar, that the feed arrangement for sugar engages in the flow tube within the sediment.
  • the feed arrangement opens into the flow tube at a vertical distance h, measured from the feed and distribution device for the solvent, which corresponds to approximately one third of a flow height H of the flow tube, which is also from the feed and distribution device is measured.
  • the flow tube is particularly simple, the supply of sugar is largely unproblematic and the sedimentation and dissolution of the sugar take place without problems if an end of the supply arrangement opening into the flow pipe is designed as a supply pipe which engages from the top of the flow pipe and is oriented essentially vertically in the latter. Particularly favorable solution conditions are created when the feed pipe is arranged coaxially in the flow pipe.
  • the solvent preferably water
  • the solvent is continuously fed in via the feed line and sugar via the feed arrangement in the required ratio, while a corresponding volume flow of sugar syrup, also referred to as single syrup, the flow tube at its upper end almost without pressure via the discharge line leaves.
  • the volume or the amount of the solvent flowing in and the volume or the amount and concentration of the simple syrup are measured continuously, and the required amount is subsequently added by subsequently continuously adding solvent Desired setpoint concentration of the final product then called syrup is reached.
  • Dissolving sugar in water is an endothermic process.
  • a further embodiment of the proposed reactor according to the invention provides that a heat exchanger is provided in the upper half of the flow tube.
  • it is also proposed to ensure the necessary supply of heat by arranging a heat exchanger in the supply line for the solvent.
  • FIG. 1 shows a schematic representation of a first embodiment of a reactor for the continuous dissolution of crystalline sugar in a solvent, preferably water, in which the feed arrangement for sugar engages in the flow tube above the sediment;
  • FIG. 2 shows a second embodiment of the reactor, modified in the region of the feed arrangement compared to the embodiment according to FIG. 1 according to the invention, in which the feed arrangement also engages in the flow tube above the sediment and
  • Figure 3 is also a schematic representation of a third embodiment of a reactor according to the invention, in which the feed arrangement for sugar engages in the flow tube within the sediment.
  • Venting device w solvent (water)
  • a reactor 1 (FIG. 1) is designed as a vertically arranged flow tube.
  • the supply line 4 for the solvent W usually water, opens into this on the one hand at the lower end, while a discharge line 5 for supply kersirup ES, on the other hand, opens out at the upper end.
  • a feed and distribution device 2 for the solvent W is arranged in the flow pipe 1, via which the solvent W is distributed uniformly over the total cross-sectional area A of the flow pipe 1.
  • an end of a feed arrangement 3 for sugar Z designed as a feed tube 3d engages, and preferably in such a way that the feed tube 3d, oriented essentially vertically, penetrates the top of the flow tube 1 and is measured at a feed height h from the feed and distribution device 2 ends.
  • the feed height h corresponds to approximately two-thirds of a flow-through height H of the flow tube 1 ( h «H2 / 3), which is also measured by the feed and distribution device 2.
  • the discharge line 5 ends in an overflow and venting device 5a, via which a filling of the flow tube 1 to be adjusted to a liquid level N can be easily controlled.
  • the single syrup ES produced in the flow tube 1 leaves the overflow and deaeration device 5a via a connecting line 5b, in which a conveying device 9 is provided.
  • solvent W is initially introduced into the feed pipe 4 so that the sugar Z is introduced from the feed arrangement 3 below the liquid level which is established.
  • the undissolved sugar Z in the flow pipe 1 has h above the feeding and distributing device 2 via a deposition amount * (* a sediment S bed height h of crystalline sugar Z) sedimented and located above sugar solution ES a release layer T formed.
  • solvent W is continuously supplied via the feed line 4 and the downstream feed and distribution device 2, said solvent W flowing substantially uniformly through the bed consisting of undissolved sugar Z with the bed height h * over the total cross-sectional area A of the flow tube 1 (Condition W + Z).
  • sugar Z is continuously supplied in the required quantity ratio via the supply arrangement 3.
  • FIG. 2 shows the embodiment of a reactor which is also designed as a flow tube 1 and which is modified compared to that according to FIG. 1 in the region of the point of introduction of the feed arrangement 3 into the flow tube 1.
  • This introduction point for the crystalline sugar Z is at a feed height h, measured by the feed and distribution device 2, which in turn corresponds to approximately two thirds of the flow height H of the flow tube 1 (h ⁇ H2 / 3).
  • the feed arrangement 3 for sugar Z is designed in the form of a tube inclined against the longitudinal axis of the flow tube 1, which opens laterally into the flow tube 1 and continues at the lower end via a slide 3c in the flow tube 1.
  • the added crystalline sugar Z is layered onto the sediment S (bed height h * ), which is also composed of crystalline sugar Z.
  • the discharge line for sugar syrup 5 is arranged laterally at the upper end of the flow tube 1 in such a way that it acts as an overflow and thereby determines a maximum liquid level N in the flow tube 1.
  • this liquid level N is also formed in the feed arrangement 3 for sugar Z, whereby problem-free feeding of the crystalline sugar Z is possible in this area.
  • a motor-driven whipping and distributing device 8 is provided in the feed arrangement 3.
  • the latter can, according to the embodiment according to FIG. 1, be designed as a metering trough, screw or cellular wheel sluice 3e.
  • a reactor 1 corresponds to the extent that it is the flow tube 1, the feed line 4, the feed and distribution device 2 and the discharge line 5 1, 2.
  • a feed arrangement 3 for sugar Z driven by a motor M engages from the side, which is designed, for example, as a metering trough, screw or cellular wheel sluice 3e is and continuously doses crystalline sugar Z from a storage silo 3a into this area of the flow tube 1.
  • the feed arrangement 3 opens into the flow pipe 1 at a vertical distance h (feed height h), measured from the feed and distribution device 2 for the solvent W, which has approximately one third of a flowed height H of the flow pipe 1 (h «H / 3), which is also measured by the feed and distribution device 2, corresponds.
  • the supply arrangement 3 is to be shut off from the interior of the flow tube 1 by means of a shut-off valve 3b.
  • a second feed line 6 opens into the discharge line 5, via which the solvent W can be fed to the sugar syrup leaving the flow tube 1 and also referred to as simple syrup ES. In this way, the so-called ready-to-use syrup FS is produced with the desired setpoint concentration.
  • the flow tube 1 is started in the manner already described above (see FIG. 1), the position of the feed arrangement 3 and the feed height h determined by this having no significant influence on the structure of the sediment S and its bed height h * .
  • the flow tube 1 above the separation layer T is completely filled with sugar solution, the simple syrup ES.
  • the latter exits the flow pipe 1 almost without pressure via the discharge line 5.
  • Both the volume flow of the solvent W flowing in via the feed line 4 and the volume flow and the concentration (density) of the single syrup ES flowing in the discharge line 5 are measured continuously.
  • a transducer FT is provided for the volume flow in the feed line 4 and in the discharge line 5, and a transducer DT is provided for the density in the discharge line 5.
  • the amount of the dissolved sugar Z in the simple syrup ES leaving the flow pipe 1 via the discharge line 5 is regulated.
  • the sugar concentration reached in the flow tube 1 is always greater than the setpoint concentration in the finished syrup FS.
  • This desired target value concentration is regulated by continuously adding solvent W on the way via the second feed line 6 into the discharge line 5 by means of a flow controller FIC.
  • Volume flow and concentration of the single syrup ES leaving the flow tube 1 determine the volume flow of the solvent W in the feed line 4 and the amount of the sugar Z fed to the flow tube 1 via the feed arrangement 3.
  • the measuring and control devices FT, DT and FIC and the drive M der Feed arrangement 3 are connected to one another via signal processing lines 7.
  • Another crizilfahre ⁇ provides to set the desired target value concentration of the finished syrup FS by regulating the amount of sugar Z to be supplied.
  • the volume flow and concentration of the simple syrup ES leaving the flow pipe 1 via the discharge line 5 are measured and the amount of the sugar Z supplied via the feed arrangement 3 is regulated as a function of the volume flow of the solvent W in the feed line 4, which is also measured.
  • control methods described above are to be applied analogously to the reactor according to FIG. 1 or 2.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Molecular Biology (AREA)
  • Nutrition Science (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Accessories For Mixers (AREA)
  • Saccharide Compounds (AREA)

Abstract

L'invention concerne un procédé pour dissoudre en continu du sucre cristallin (Z) dans un solvant (W), de préférence de l'eau, procédé selon lequel, au cours du processus de dissolution, en fonction de la concentration de sucre souhaitée pour la solution de sucre à produire, on ajoute en continu, selon le rapport nécessaire, du sucre cristallin (Z) et du solvant (W) au sirop de sucre, et la quantité correspondante de sirop de sucre (ES) produit est évacuée en continu. L'objectif de l'invention est que ce procédé soit facile à mettre en oeuvre et que le réacteur nécessaire à sa mise en oeuvre soit, si l'on compare avec des appareils connus, d'une structure plus simple, qu'il puisse fonctionner sans dispositifs de mélange et que sa consommation d'énergie spécifique soit faible. Cet objectif est atteint, en ce qui concerne la technique du procédé, par le fait que, dans le solvant (W), un sédiment de sucre cristallin (Z) est maintenu à une hauteur de lit (h*) constante par amenée du sucre cristallin (Z) au-dessus ou à l'intérieur du sédiment, et par le fait que ce sédiment (S) est traversé par le solvant (W) à l'encontre de la force de gravité, cela à une vitesse (v) comprise dans la plage (0,2 à 1,0)10-3 m/s qui reste en-dessous de la vitesse limite v¿G? à partir de laquelle le sédiment (S) est soulevé en tourbillon dans le solvant (W). Le réacteur se présente sous la forme d'un tube d'écoulement (1) disposé verticalement, dans l'extrémité inférieure duquel débouche une conduite d'alimentation (4) amenant le solvant (W), auquel un dispositif d'amenée et de répartition (2) conduisant le solvant (W) est immédiatement adjacent, qui, à son extrémité supérieure, débouche dans une conduite d'évacuation (5) par laquelle passe le sirop de sucre (ES) et qui, dans la zone comprise entre le dispositif d'alimentation et de répartition (2) et la ligne d'évacuation (5), est pénétré par un dispositif d'alimentation (3) amenant le sucre (Z).
PCT/EP2001/000881 2000-02-01 2001-01-27 Procede pour dissoudre en continu du sucre cristallin dans un solvant, de preference de l'eau, et reacteur pour la mise en oeuvre de ce procede WO2001056403A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE20001749.7 2000-02-01
DE20001749U DE20001749U1 (de) 2000-02-01 2000-02-01 Reaktor zum kontinuierlichen Auflösen von kristallinem Zucker in einem Lösungsmittel, vorzugsweise Wasser
DE10022012A DE10022012C2 (de) 2000-02-01 2000-05-05 Verfahren zum kontinuierlichen Auflösen von kristallinem Zucker in einem Lösungsmittel, vorzugsweise Wasser, und Reaktor zum Durchführen des Verfahrens
DE10022012.6 2000-05-05

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WO2001056403A1 true WO2001056403A1 (fr) 2001-08-09

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PCT/EP2001/000881 WO2001056403A1 (fr) 2000-02-01 2001-01-27 Procede pour dissoudre en continu du sucre cristallin dans un solvant, de preference de l'eau, et reacteur pour la mise en oeuvre de ce procede

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016112927A1 (fr) 2015-01-17 2016-07-21 Gea Tds Gmbh Procédé et système de purification de sucre liquide produit de sucre produit à partir de sucre cristal de pureté inférieure
WO2017211376A1 (fr) 2016-06-11 2017-12-14 Gea Tds Gmbh Procédé et installation de purification de sucre liquide produit à partir de sucre cristal de pureté inférieure

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE443181C (de) * 1926-03-27 1927-04-14 Willi Schmidt Verfahren und Vorrichtung zur Loesung von Zucker auf warmem Wege
DE1034469B (de) * 1953-07-27 1958-07-17 Hansella Werk Albert Henkel A Durchfluss-Loese-Anlage zur Herstellung gesaettigter Zuckerloesungen
DE1037247B (de) * 1957-05-09 1958-08-21 Hansella Werke Albert Henkel A Zweikammer-Stroemungs-Aufloesekessel zur Herstellung von Zuckerloesungen
DE1794125A1 (de) * 1968-09-12 1971-10-07 Franz Orlita Verfahren und Vorrichtung zum Loesen einer kristallinen oder pulverfoermigen Masse in Fluessigkeit,z.B. Zucker in Wasser
US3837914A (en) * 1972-05-23 1974-09-24 Frebar Ag Method and apparatus for dissolving sugar and other soluble solids
FR2308406A1 (fr) * 1975-04-24 1976-11-19 Pepin Fils Procede de fusion en continu d'un solide dans un liquide, notamment pour la fabrication de sirops
DE3130231A1 (de) * 1981-07-31 1983-02-10 Buckau-Walther AG, 4048 Grevenbroich Verfahren und vorrichtung zum abschleudern und wiederaufloesen von zucker

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE443181C (de) * 1926-03-27 1927-04-14 Willi Schmidt Verfahren und Vorrichtung zur Loesung von Zucker auf warmem Wege
DE1034469B (de) * 1953-07-27 1958-07-17 Hansella Werk Albert Henkel A Durchfluss-Loese-Anlage zur Herstellung gesaettigter Zuckerloesungen
DE1037247B (de) * 1957-05-09 1958-08-21 Hansella Werke Albert Henkel A Zweikammer-Stroemungs-Aufloesekessel zur Herstellung von Zuckerloesungen
DE1794125A1 (de) * 1968-09-12 1971-10-07 Franz Orlita Verfahren und Vorrichtung zum Loesen einer kristallinen oder pulverfoermigen Masse in Fluessigkeit,z.B. Zucker in Wasser
US3837914A (en) * 1972-05-23 1974-09-24 Frebar Ag Method and apparatus for dissolving sugar and other soluble solids
FR2308406A1 (fr) * 1975-04-24 1976-11-19 Pepin Fils Procede de fusion en continu d'un solide dans un liquide, notamment pour la fabrication de sirops
DE3130231A1 (de) * 1981-07-31 1983-02-10 Buckau-Walther AG, 4048 Grevenbroich Verfahren und vorrichtung zum abschleudern und wiederaufloesen von zucker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016112927A1 (fr) 2015-01-17 2016-07-21 Gea Tds Gmbh Procédé et système de purification de sucre liquide produit de sucre produit à partir de sucre cristal de pureté inférieure
WO2017211376A1 (fr) 2016-06-11 2017-12-14 Gea Tds Gmbh Procédé et installation de purification de sucre liquide produit à partir de sucre cristal de pureté inférieure

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