EP1063302A1 - Process and unit for extracting a sugar juice - Google Patents
Process and unit for extracting a sugar juice Download PDFInfo
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- EP1063302A1 EP1063302A1 EP00401790A EP00401790A EP1063302A1 EP 1063302 A1 EP1063302 A1 EP 1063302A1 EP 00401790 A EP00401790 A EP 00401790A EP 00401790 A EP00401790 A EP 00401790A EP 1063302 A1 EP1063302 A1 EP 1063302A1
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- Prior art keywords
- pressing
- juice
- sweet
- extraction
- pressing means
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- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
- C13B10/00—Production of sugar juices
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- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
- C13B10/00—Production of sugar juices
- C13B10/08—Extraction of sugar from sugar beet with water
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- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
- C13B20/00—Purification of sugar juices
- C13B20/16—Purification of sugar juices by physical means, e.g. osmosis or filtration
Definitions
- the present invention relates generally to a process and installation for extracting a sweet juice from beets or chicory, and more particularly a process and a extraction plant in which only two floors are used extraction by successive pressing.
- the conventional methods of diffusion of the prior art use extractors which are passed against the current sugar beet pods and a high extraction solvent temperature such as hot water, the sugar being extracted by diffusion without pressing the pods.
- the contact time must be relatively long, which requires large extractors length and maintain the extraction solvent such as water at a high temperature over the entire extraction area; for example at a temperature of the order of 70 ° C.
- the object of the present invention is therefore to provide a process for extracting a sweet juice from sugar beet or chicory requiring a less expensive infrastructure, a lower energy cost and which results in an absence of CO 2 rejection in the atmosphere at the level of purification.
- the process of the invention makes it possible to obtain a juice better quality than art spreading processes because it requires lower temperatures, oxidation reduced raw material avoids the dissolution of products unwanted unsweetened and limits microbial growth with for consequences of very low levels of organic compounds in the sweet juices obtained.
- the invention also relates to an installation for production of a sweet juice using the above process.
- a process for extracting a sweet juice from sugar beets or chicory including the successive treatment of a sugar beets or chicory in only two floors extraction by series pressing, the second extraction stage by pressing consisting of at least one filter press, and the sweet juice obtained by filtration / pressing in the filter press being either mixed the juice extracted from the first extraction stage, i.e. at least in part recycled with fresh grating feeding the first extraction stage, however at least a predetermined amount of water is introduced in the grating supplying the second extraction stage.
- the second pressing means consists of several filter presses membrane plates and cyclic operation, for example two, arranged in parallel.
- the invention also relates to an installation for placing using the above extraction process, characterized in that it includes a press extraction assembly comprising only two stages of extraction by pressing in series, the second pressing extraction stage consisting of a filter press with membrane plates and cyclic or multiple operation filter presses with membrane plates and cyclic operation arranged in parallel.
- the process of extracting a juice sweetened from sugar beets or chicory includes two PR1, FP pressing stages, arranged in series, the first PR1 pressing stage being fed by a mixture feeder A0 containing fresh R0 grating and providing output a first sweet juice J1 and a first pressed rasp R1, and the second extraction stage FP receiving an A1 feed mixture containing the first pressed rasp R1 and providing a second sweet juice J2 and a second pressed rasp R2.
- the first extraction stage comprises a PR1 press, for example a twin-screw press fed by a vertical flared feed chute G1, of sufficient size to allow a good press feeding and a balance as perfect as possible between the sugar concentration of the cellulosic phase and the liquid phase with a feed mixture A0 containing the fresh grating R0 of sugar beets or chicory and at least part of the second sweet juice J2 from the second stage of extraction by FP pressing.
- a grater i.e. a material beetroot or chicory reduced in size particles average from 1 to 10 mm, preferably 2 to 4 mm, unlike usually used chips promotes sugar extraction from cells by leaching / pressing operation.
- the first pressed and partially used grater R1 issue of the first PR1 press possibly mixed with a refusal solid recovered from the first sweet juice J1 and part J "2 of second sweet juice J2, as will be seen more precisely below, is usually added with a predetermined amount of water to form the feed mixture A1 of the second extraction stage by FP pressing.
- the feed mixture A1 is cyclically filtered then pressed to obtain a second sweet juice J2 and a second pressed rasp R2 which is evacuated for storage and its processing generally into animal feed.
- the filter press FP operates in successive filtration and pressing cycles.
- a fraction J'2 of the second sweet juice J2 is separated by filtration from the first pressed rasp R1 which accumulates in the form of cakes on the membrane plates of the filter press.
- This first fraction J'2 of second sweet juice J2 is collected in a tank B'2 and pumped using a pump P'2 to be mixed with the fresh grating R0 to form the feed mixture A0 of the first extraction stage PR1.
- the grating cakes on the membrane trays of the FP filter press are pressed to extract them an additional fraction J "2 of the second sweet juice, then the second pressed rasp R2 is removed from the filter press and conveyed by for example by a conveyor belt, to a storage place.
- This second fraction J "2 of the second sweet juice J2 is recovered in a tank B "2 and pumped by a pump P" 2 to preferably be mixed with the first pressed rasp R1 to form the mixture supply A1 of the second extraction stage by constituted pressing by the FP filter press.
- the first juice sweet J1 from the first stage of extraction by pressing PR1 is collected in a tank B1 then pumped by means of a pump P1 on a sieve T in order to separate from this first sweet juice J1 a final sweet juice JS and a solid RF refusal.
- the solid refusal is also mixed with the first pressed rasp R1 from the first stage of extraction by pressing PR1 to form the feed mixture A1 of the second FP pressing extraction stage.
- JS sweet juice from the first stage of extraction by PR1 pressing is recovered, purified and treated in a conventional manner.
- the final processed juice is then decanted and the juice clear obtained is, as is conventional, sulfited and then filtered.
- the first pressed rasp R1 the solid refusal RF of the sieve T and the fraction J "2 of the second sweet juice J2 are mixed in an M1 mixer, pumped and added with a predetermined amount of water to form the feed mixture A1 of the second stage of extraction by pressing constituted by the filter press FP.
- An additional quantity of water is added to ensure the desugaring of grated cakes in the filter press (from 100 to 500 kg water / ton of beets).
- This water is generally introduced to a temperature varying from 30 to 90 ° C, preferably at a temperature of the order of 60 ° C.
- This water can only be introduced to the feeding level of the second extraction stage by pressing consisting of the FP filter press (sugar removal function) or can be introduced in addition to the FP filter press supply level, in several other points in the installation, for example in tank B "2 recovery of fraction J "2 of the second sweet juice J2 or else in the tray B'2 for recovering the fraction J'2 of the second sweet juice D2, or in the bin Ml.
- the fractions J'2 and J "2 of the second sweet juice J2 are used so differentiated, we could mix these fractions and use them simply to be mixed with R0 fresh grating.
- the described differentiated use of the fractions of the second sweet juice J2 ensures better efficiency of the extraction process.
Abstract
Description
La présente invention concerne d'une manière générale un procédé et une installation d'extraction d'un jus sucré à partir de betteraves ou chicorée, et plus particulièrement un procédé et une installation d'extraction dans lesquels on utilise seulement deux étages d'extraction par pressage successifs.The present invention relates generally to a process and installation for extracting a sweet juice from beets or chicory, and more particularly a process and a extraction plant in which only two floors are used extraction by successive pressing.
Les procédés classiques de diffusion de l'art antérieur emploient des extracteurs dans lesquels on fait passer à contre-courant de cossettes de betteraves sucrières et un solvant d'extraction à haute température tel que de l'eau chaude, le sucre étant extrait par diffusion sans qu'il y ait pressage des cossettes.The conventional methods of diffusion of the prior art use extractors which are passed against the current sugar beet pods and a high extraction solvent temperature such as hot water, the sugar being extracted by diffusion without pressing the pods.
Pour obtenir une extraction convenable, le temps de contact doit être relativement long, ce qui nécessite des extracteurs de grande longueur et de maintenir le solvant d'extraction tel que l'eau à une température élevée sur la totalité de la zone d'extraction ; par exemple à une température de l'ordre de 70°C.To obtain a suitable extraction, the contact time must be relatively long, which requires large extractors length and maintain the extraction solvent such as water at a high temperature over the entire extraction area; for example at a temperature of the order of 70 ° C.
Ces exigences font que les coûts d'infrastructure et les coûts d'exploitation, en particulier en ce qui concerne le bilan énergétique, sont élevés.These requirements mean that infrastructure costs and costs operating, in particular with regard to the energy balance, are high.
En outre, ces procédés classiques se traduisent par un rejet important de CO2 dans l'atmosphère, du fait de l'épuration calcocarbonique classique du jus sucré obtenu.In addition, these conventional processes result in a significant release of CO 2 into the atmosphere, due to the conventional calcocarbon purification of the sweet juice obtained.
La présente invention a donc pour objet de fournir un procédé d'extraction d'un jus sucré à partir de betteraves sucrières ou de chicorée nécessitant une infrastructure moins coûteuse, un coût énergétique moindre et qui se traduit par une absence de rejet de CO2 dans l'atmosphère au niveau de l'épuration.The object of the present invention is therefore to provide a process for extracting a sweet juice from sugar beet or chicory requiring a less expensive infrastructure, a lower energy cost and which results in an absence of CO 2 rejection in the atmosphere at the level of purification.
En outre, le procédé de l'invention permet l'obtention d'un jus sucré de meilleure qualité que les procédés de diffusion de l'art antérieur car nécessitant de plus faibles températures, l'oxydation réduite de la matière première évite la mise en solution de produits non sucrés indésirables et limite les développements microbiens avec pour conséquences des teneurs très réduites en composés organiques dans les jus sucrés obtenus.In addition, the process of the invention makes it possible to obtain a juice better quality than art spreading processes because it requires lower temperatures, oxidation reduced raw material avoids the dissolution of products unwanted unsweetened and limits microbial growth with for consequences of very low levels of organic compounds in the sweet juices obtained.
L'invention concerne également une installation de production d'un jus sucré mettant en oeuvre le procédé ci-dessus.The invention also relates to an installation for production of a sweet juice using the above process.
On atteint les buts ci-dessus selon l'invention au moyen d'un procédé d'extraction d'un jus sucré à partir de betteraves sucrières ou de chicorée, comprenant le traitement successif d'une râpure de betteraves sucrières ou de chicorée dans seulement deux étages d'extraction par pressages en série, le second étage d'extraction par pressage étant constitué par au moins un filtre-presse, et le jus sucré obtenu par filtration/pressage dans le filtre-presse étant soit mélangé au jus extrait du premier étage d'extraction, soit au moins en partie recyclé avec la râpure fraíche alimentant le premier étage d'extraction, cependant qu'une quantité prédéterminée d'eau est introduite au moins dans la râpure alimentant le second étage d'extraction.The above objects are achieved according to the invention by means of a process for extracting a sweet juice from sugar beets or chicory, including the successive treatment of a sugar beets or chicory in only two floors extraction by series pressing, the second extraction stage by pressing consisting of at least one filter press, and the sweet juice obtained by filtration / pressing in the filter press being either mixed the juice extracted from the first extraction stage, i.e. at least in part recycled with fresh grating feeding the first extraction stage, however at least a predetermined amount of water is introduced in the grating supplying the second extraction stage.
Plus précisément, selon l'invention, le procédé d'extraction d'un jus sucré final à partir d'une râpure fraíche de betteraves ou de chicorée, comprend uniquement deux étapes successives d'extraction par pressage dans lesquelles sont produits, respectivement, dans la première étape, un premier jus sucré et une première râpure pressée et dans la seconde étape, un second jus sucré et une seconde râpure pressée et se caractérise par le fait que :
- la première étape d'extraction comprend le passage dans un premier moyen de pressage de la râpure fraíche et additionnée éventuellement d'eau ou d'une partie au moins du second jus sucré ; et
- la deuxième étape d'extraction comprend le passage dans un second moyen de pressage constitué d'au moins un filtre-presse à plateaux membranés et fonctionnement cyclique d'un second mélange d'alimentation comprenant la première râpure pressée issue du premier moyen de pressage et une quantité prédéterminée d'eau.
- the first extraction step comprises passing through a first pressing means the fresh grating and optionally added with water or at least part of the second sweet juice; and
- the second extraction step comprises passing through a second pressing means consisting of at least one filter press with membrane plates and cyclic operation of a second feeding mixture comprising the first pressed rasp from the first pressing means and a predetermined amount of water.
Dans une réalisation recommandée de l'invention, le second moyen de pressage est constitué par plusieurs filtres-presses à plateaux membranés et fonctionnement cyclique, par exemple deux, agencés en parallèle.In a recommended embodiment of the invention, the second pressing means consists of several filter presses membrane plates and cyclic operation, for example two, arranged in parallel.
L'invention concerne également une installation pour la mise en oeuvre du procédé d'extraction ci-dessus caractérisé par le fait qu'il comprend un ensemble d'extraction par pressage comprenant uniquement deux étages d'extraction par pressage en série, le second étage d'extraction par pressage étant constitué par un filtre-presse à plateaux membranés et fonctionnement cyclique ou par plusieurs filtres presses à plateaux membranés et fonctionnement cyclique agencés en parallèle.The invention also relates to an installation for placing using the above extraction process, characterized in that it includes a press extraction assembly comprising only two stages of extraction by pressing in series, the second pressing extraction stage consisting of a filter press with membrane plates and cyclic or multiple operation filter presses with membrane plates and cyclic operation arranged in parallel.
La suite de la description se réfère à la figure unique annexée qui représente une vue schématique d'une réalisation d'une installation de mise en oeuvre du procédé d'extraction selon l'invention.The rest of the description refers to the single figure attached. which represents a schematic view of an embodiment of an installation implementing the extraction method according to the invention.
En se référant à cette figure, le procédé d'extraction d'un jus sucré à partir de betteraves sucrières ou de chicorée comprend deux étages d'extraction par pressage PR1, FP, agencés en série, le premier étage d'extraction par pressage PR1 étant alimenté par un mélange d'alimentation A0 contenant de la râpure fraíche R0 et fournissant en sortie un premier jus sucré J1 et une première râpure pressée R1, et le second étage d'extraction FP recevant un mélange d'alimentation A1 contenant la première râpure pressée R1 et fournissant en sortie un second jus sucré J2 et une seconde râpure pressée R2.Referring to this figure, the process of extracting a juice sweetened from sugar beets or chicory includes two PR1, FP pressing stages, arranged in series, the first PR1 pressing stage being fed by a mixture feeder A0 containing fresh R0 grating and providing output a first sweet juice J1 and a first pressed rasp R1, and the second extraction stage FP receiving an A1 feed mixture containing the first pressed rasp R1 and providing a second sweet juice J2 and a second pressed rasp R2.
Plus précisément, le premier étage d'extraction comprend une presse PR1, par exemple une presse de type bi-vis alimentée par une goulotte verticale d'alimentation évasée G1, de taille suffisante pour permettre un bon gavage de la presse et un équilibre aussi parfait que possible entre la concentration en sucre de la phase cellulosique et de la phase liquide avec un mélange d'alimentation A0 contentant de la râpure fraíche R0 de betteraves sucrières ou de chicorée et au moins une partie du second jus sucré J2 issu du second étage d'extraction par pressage FP. L'utilisation d'une râpure, c'est-à-dire d'une matière première de betteraves ou chicorée réduite en particules de taille moyenne de 1 à 10 mm, de préférence 2 à 4 mm, contrairement aux cossettes habituellement utilisées favorise l'extraction du sucre des cellules par opération de lessivage / pressage.More specifically, the first extraction stage comprises a PR1 press, for example a twin-screw press fed by a vertical flared feed chute G1, of sufficient size to allow a good press feeding and a balance as perfect as possible between the sugar concentration of the cellulosic phase and the liquid phase with a feed mixture A0 containing the fresh grating R0 of sugar beets or chicory and at least part of the second sweet juice J2 from the second stage of extraction by FP pressing. The use of a grater, i.e. a material beetroot or chicory reduced in size particles average from 1 to 10 mm, preferably 2 to 4 mm, unlike usually used chips promotes sugar extraction from cells by leaching / pressing operation.
La première râpure pressée et partiellement épuisée R1 issue de la première presse PR1, éventuellement mélangée avec un refus solide récupéré à partir du premier jus sucré J1 et une partie J"2 du second jus sucré J2, comme on le verra plus précisément ci-dessous, est en général additionnée d'une quantité prédéterminée d'eau pour former le mélange d'alimentation A1 du second étage d'extraction par pressage FP.The first pressed and partially used grater R1 issue of the first PR1 press, possibly mixed with a refusal solid recovered from the first sweet juice J1 and part J "2 of second sweet juice J2, as will be seen more precisely below, is usually added with a predetermined amount of water to form the feed mixture A1 of the second extraction stage by FP pressing.
Dans ce second étage d'extraction par pressage, qui est constitué par au moins un filtre-presse à plateaux membranés et fonctionnement cyclique FP, le mélange d'alimentation A1 est cycliquement filtré puis pressé pour obtenir un second jus sucré J2 et une seconde râpure pressée R2 qui est évacuée en vue de son stockage et de sa transformation généralement en aliments pour bétail.In this second stage of extraction by pressing, which is consisting of at least one filter press with membrane plates and cyclic operation FP, the feed mixture A1 is cyclically filtered then pressed to obtain a second sweet juice J2 and a second pressed rasp R2 which is evacuated for storage and its processing generally into animal feed.
Plus précisément, comme cela est bien connu, le filtre-presse FP fonctionne par cycles successifs de filtration et de pressage. Lors du cycle de fonctionnement en filtration du filtre-presse FP, une fraction J'2 du second jus sucré J2 est séparée par filtration de la première râpure pressée R1 qui s'accumule sous forme de gâteaux sur les plateaux membranés du filtre-presse. Cette première fraction J'2 du second jus sucré J2 est récupérée dans un bac B'2 et pompée au moyen d'une pompe P'2 pour être mélangée à la râpure fraíche R0 pour former le mélange d'alimentation A0 du premier étage d'extraction PR1. Lors du cycle de compression du filtre-presse, les gâteaux de râpure sur les plateaux à membranes du filtre-presse FP sont pressés pour en extraire une fraction supplémentaire J"2 du second jus sucré, puis la seconde râpure pressée R2 est évacuée du filtre-presse et convoyée, par exemple par un tapis roulant, jusqu'à un lieu de stockage. Cette seconde fraction J"2 du second jus sucré J2 est récupérée dans un bac B"2 et pompée par une pompe P"2 pour de préférence être mélangée avec la première râpure pressée R1 en vue de former le mélange d'alimentation A1 du second étage d'extraction par pressage constitué par le filtre-presse FP. Comme le montre la figure, le premier jus sucré J1 issu du premier étage d'extraction par pressage PR1 est recueilli dans un bac B1 puis pompé au moyen d'une pompe P1 sur un tamis T afin de séparer de ce premier jus sucré J1 un jus sucré final JS et un refus solide RF.More specifically, as is well known, the filter press FP operates in successive filtration and pressing cycles. When of the operating cycle in filtration of the FP filter press, a fraction J'2 of the second sweet juice J2 is separated by filtration from the first pressed rasp R1 which accumulates in the form of cakes on the membrane plates of the filter press. This first fraction J'2 of second sweet juice J2 is collected in a tank B'2 and pumped using a pump P'2 to be mixed with the fresh grating R0 to form the feed mixture A0 of the first extraction stage PR1. When of the compression cycle of the filter press, the grating cakes on the membrane trays of the FP filter press are pressed to extract them an additional fraction J "2 of the second sweet juice, then the second pressed rasp R2 is removed from the filter press and conveyed by for example by a conveyor belt, to a storage place. This second fraction J "2 of the second sweet juice J2 is recovered in a tank B "2 and pumped by a pump P" 2 to preferably be mixed with the first pressed rasp R1 to form the mixture supply A1 of the second extraction stage by constituted pressing by the FP filter press. As shown in the figure, the first juice sweet J1 from the first stage of extraction by pressing PR1 is collected in a tank B1 then pumped by means of a pump P1 on a sieve T in order to separate from this first sweet juice J1 a final sweet juice JS and a solid RF refusal.
De préférence, le refus solide est mélangé également avec la première râpure pressée R1 issue du premier étage d'extraction par pressage PR1 pour former le mélange d'alimentation A1 du second étage d'extraction par pressage FP.Preferably, the solid refusal is also mixed with the first pressed rasp R1 from the first stage of extraction by pressing PR1 to form the feed mixture A1 of the second FP pressing extraction stage.
Le jus sucré JS issu du premier étage d'extraction par pressage PR1 est récupéré, épuré et traité de manière classique. Toutefois, avec le procédé de l'invention, il est possible d'utiliser une épuration simplifiée du jus final JS par coagulation / floculation avec une très petite quantité de chaux (1 à 3 g/ litre) au lieu d'une épuration calcocarbonique classique. Le jus final traité est alors décanté et le jus clair obtenu est, comme cela est classique, sulfité puis filtré.JS sweet juice from the first stage of extraction by PR1 pressing is recovered, purified and treated in a conventional manner. However, with the method of the invention, it is possible to use a simplified purification of the JS final juice by coagulation / flocculation with a very small amount of lime (1 to 3 g / liter) instead of a purification classic calcocarbon. The final processed juice is then decanted and the juice clear obtained is, as is conventional, sulfited and then filtered.
Comme le montre la figure, la première râpure pressée R1, le refus solide RF du tamis T et la fraction J"2 du second jus sucré J2 sont mélangés dans un mélangeur M1, pompés et additionnés d'une quantité prédéterminée d'eau pour former le mélange d'alimentation A1 du second étage d'extraction par pressage constitué par le filtre-presse FP.As shown in the figure, the first pressed rasp R1, the solid refusal RF of the sieve T and the fraction J "2 of the second sweet juice J2 are mixed in an M1 mixer, pumped and added with a predetermined amount of water to form the feed mixture A1 of the second stage of extraction by pressing constituted by the filter press FP.
Une quantité complémentaire d'eau est ajoutée pour assurer le désucrage des gâteaux de râpure dans le filtre-presse (de 100 à 500 kg d'eau / tonne de betteraves). Cette eau est généralement introduite à une température variant de 30 à 90°C, de préférence à une température de l'ordre de 60°C. Cette eau peut être introduite uniquement au niveau de l'alimentation du second étage d'extraction par pressage constitué par le filtre-presse FP (fonction de désucrage) ou peut être introduite en plus du niveau de l'alimentation du filtre-presse FP, en plusieurs autres points de l'installation, par exemple dans le bac B"2 de récupération de la fraction J"2 du second jus sucré J2 ou encore dans le bac B'2 de récupération de la fraction J'2 du second jus sucré J2, ou encore dans le bac Ml.An additional quantity of water is added to ensure the desugaring of grated cakes in the filter press (from 100 to 500 kg water / ton of beets). This water is generally introduced to a temperature varying from 30 to 90 ° C, preferably at a temperature of the order of 60 ° C. This water can only be introduced to the feeding level of the second extraction stage by pressing consisting of the FP filter press (sugar removal function) or can be introduced in addition to the FP filter press supply level, in several other points in the installation, for example in tank B "2 recovery of fraction J "2 of the second sweet juice J2 or else in the tray B'2 for recovering the fraction J'2 of the second sweet juice D2, or in the bin Ml.
Bien que de préférence, comme décrit précédemment, les fractions J'2 et J"2 du second jus sucré J2 soient utilisées de façon différenciée, on pourrait mélanger ces fractions et les utiliser simplement pour être mélangées avec la râpure fraíche R0. Toutefois, l'utilisation différenciée décrite des fractions du second jus sucré J2 permet d'assurer une meilleure efficacité au procédé d'extraction.Although preferably, as described above, the fractions J'2 and J "2 of the second sweet juice J2 are used so differentiated, we could mix these fractions and use them simply to be mixed with R0 fresh grating. However, the described differentiated use of the fractions of the second sweet juice J2 ensures better efficiency of the extraction process.
En variante, on pourrait utiliser à la place de l'unique filtre-presse représenté, plusieurs filtres-presses fonctionnant en parallèle, par exemple deux filtres-presses, pour assurer une continuité de débit.Alternatively, one could use the single filter press instead shown, several filter presses operating in parallel, for example two filter presses, to ensure continuity of flow.
Eventuellement, on peut prévoir une étape de réchauffage du second jus sucré J2 par exemple au moyen d'un réchauffeur afin de régler la température de la râpure dans le premier étage d'extraction PR1.Optionally, provision may be made for a step of reheating the second sweet juice J2 for example by means of a heater in order to adjust the temperature of the grating in the first extraction stage PR1.
On a fait fonctionner l'installation décrite ci-dessus dans les
conditions suivantes :
Après traitement du jus sucré J1 tamisé avec du bisulfite à un débit de bisulfite MA à 20 kg/heure, on a obtenu un jus sucré final ayant une pureté de 86 %. La teneur en sucre de la seconde râpure pressée R2 était de 0,55 % en poids.After treatment of the sweet juice J1 sifted with bisulfite at a bisulfite MA flow rate at 20 kg / hour, a final sweet juice was obtained having a purity of 86%. The sugar content of the second grater pressed R2 was 0.55% by weight.
Claims (8)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9908178A FR2795428B1 (en) | 1999-06-25 | 1999-06-25 | PROCESS AND PLANT FOR EXTRACTING SUGAR JUICE |
| FR9908178 | 1999-06-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1063302A1 true EP1063302A1 (en) | 2000-12-27 |
| EP1063302B1 EP1063302B1 (en) | 2008-04-16 |
Family
ID=9547328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00401790A Expired - Lifetime EP1063302B1 (en) | 1999-06-25 | 2000-06-22 | Process for extracting sugar syrup |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1063302B1 (en) |
| AT (1) | ATE392487T1 (en) |
| DE (1) | DE60038592T2 (en) |
| ES (1) | ES2304933T3 (en) |
| FR (1) | FR2795428B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2928817A1 (en) * | 2008-03-19 | 2009-09-25 | Ecopsi Soc Par Actions Simplif | PROCESS AND UNIT FOR PRODUCING BETTRAVES AND SUGAR JUICE DRECHES FROM BETTRAVES |
| CN102766702A (en) * | 2012-07-24 | 2012-11-07 | 广西大学 | High-speed sedimentation device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE736734C (en) * | 1939-07-02 | 1943-06-25 | Fraembs & Freudenberg | Process for juicing sugar beets |
| FR2489840A1 (en) * | 1980-09-05 | 1982-03-12 | Ital Ind Degli Zuccheri | PROCESS AND PLANT FOR THE EXTRACTION OF BEET SUGAR AND PRODUCTS OBTAINED BY THIS PROCESS |
| FR2502909A1 (en) * | 1981-04-03 | 1982-10-08 | Alsthom Atlantique | PROCESS FOR THE EXTRACTION OF JUICE FROM TUBERS, ESPECIALLY TOPINAMBOURS AND INSTALLATION IMPLEMENTING THE PROCESS |
| WO1990010719A2 (en) * | 1989-03-10 | 1990-09-20 | Sugana Zucker-Gesellschaft M.B.H. | Mulitistage process for extracting sugar from sugar beet and special raw sugar obtained |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2788785B1 (en) * | 1999-01-21 | 2001-04-06 | Maguin | PROCESS AND UNIT FOR EXTRACTING SUGAR JUICE FROM BEET OR CHICORE |
-
1999
- 1999-06-25 FR FR9908178A patent/FR2795428B1/en not_active Expired - Fee Related
-
2000
- 2000-06-22 EP EP00401790A patent/EP1063302B1/en not_active Expired - Lifetime
- 2000-06-22 ES ES00401790T patent/ES2304933T3/en not_active Expired - Lifetime
- 2000-06-22 DE DE60038592T patent/DE60038592T2/en not_active Expired - Lifetime
- 2000-06-22 AT AT00401790T patent/ATE392487T1/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE736734C (en) * | 1939-07-02 | 1943-06-25 | Fraembs & Freudenberg | Process for juicing sugar beets |
| FR2489840A1 (en) * | 1980-09-05 | 1982-03-12 | Ital Ind Degli Zuccheri | PROCESS AND PLANT FOR THE EXTRACTION OF BEET SUGAR AND PRODUCTS OBTAINED BY THIS PROCESS |
| FR2502909A1 (en) * | 1981-04-03 | 1982-10-08 | Alsthom Atlantique | PROCESS FOR THE EXTRACTION OF JUICE FROM TUBERS, ESPECIALLY TOPINAMBOURS AND INSTALLATION IMPLEMENTING THE PROCESS |
| WO1990010719A2 (en) * | 1989-03-10 | 1990-09-20 | Sugana Zucker-Gesellschaft M.B.H. | Mulitistage process for extracting sugar from sugar beet and special raw sugar obtained |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2928817A1 (en) * | 2008-03-19 | 2009-09-25 | Ecopsi Soc Par Actions Simplif | PROCESS AND UNIT FOR PRODUCING BETTRAVES AND SUGAR JUICE DRECHES FROM BETTRAVES |
| WO2009125088A2 (en) * | 2008-03-19 | 2009-10-15 | Ecopsi | Beet processing process and unit |
| WO2009125088A3 (en) * | 2008-03-19 | 2011-12-01 | Lesaffre Et Compagnie | Beet processing method |
| US9326534B2 (en) | 2008-03-19 | 2016-05-03 | Lesaffre Et Comopagnie | Beet processing process and unit |
| CN102766702A (en) * | 2012-07-24 | 2012-11-07 | 广西大学 | High-speed sedimentation device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE60038592D1 (en) | 2008-05-29 |
| FR2795428B1 (en) | 2001-08-31 |
| EP1063302B1 (en) | 2008-04-16 |
| ES2304933T3 (en) | 2008-11-01 |
| FR2795428A1 (en) | 2000-12-29 |
| ATE392487T1 (en) | 2008-05-15 |
| DE60038592T2 (en) | 2009-05-07 |
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