WO2007111523A1 - Procédé de fabrication de sucre - Google Patents

Procédé de fabrication de sucre Download PDF

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Publication number
WO2007111523A1
WO2007111523A1 PCT/RU2006/000138 RU2006000138W WO2007111523A1 WO 2007111523 A1 WO2007111523 A1 WO 2007111523A1 RU 2006000138 W RU2006000138 W RU 2006000138W WO 2007111523 A1 WO2007111523 A1 WO 2007111523A1
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WO
WIPO (PCT)
Prior art keywords
juice
solution
amount
diffusion
reagent
Prior art date
Application number
PCT/RU2006/000138
Other languages
English (en)
Russian (ru)
Inventor
Afanasy Moiseevich Kim
Sergey Sergeevich Karabuta
Original Assignee
Afanasy Moiseevich Kim
Sergey Sergeevich Karabuta
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 Afanasy Moiseevich Kim, Sergey Sergeevich Karabuta filed Critical Afanasy Moiseevich Kim
Priority to CNA2006800538126A priority Critical patent/CN101400807A/zh
Priority to PCT/RU2006/000138 priority patent/WO2007111523A1/fr
Publication of WO2007111523A1 publication Critical patent/WO2007111523A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C13—SUGAR INDUSTRY
    • C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B20/00—Purification of sugar juices
    • C13B20/02—Purification of sugar juices using alkaline earth metal compounds
    • 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
    • C—CHEMISTRY; METALLURGY
    • C13—SUGAR INDUSTRY
    • C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B20/00—Purification of sugar juices

Definitions

  • the invention relates to the sugar industry.
  • a known method for the production of sugar providing for the diffusion of juice by scalding beet chips and its extraction, preparing a solution of an inorganic coagulant of aluminum dihydroxosulfate and a non-anionic (cationic) flocculant polio-4-vinyl-N-benzyl, isothermally and redistribute it. to reduce the content of colloidal dispersion substances and sucrose loss in diffusion juice (SU 1377294 from 02.29.88).
  • the disadvantage of this method is the low cleaning effect of beet juice due to the use of inorganic coagulant and high molecular weight flocculant in the mixture at the beginning of the sucrose extraction process.
  • a known method for the production of sugar comprising crushing sugar beets into chips, scalding it and feeding it to a diffusion apparatus for extraction, obtaining diffusion juice and purifying it simultaneously with extraction by using an aqueous solution containing a water-soluble polymer as an extractant, an electrolyte, a bleaching reagent, and an antiseptic with maintaining the pH of the diffusion medium using carbon dioxide and subsequent filtration, condensation of juice and boiling sugar (RU Ne2255980 C1, 07/10/2005).
  • the method involves carrying out an extraction process while maintaining a pH of 8.5-8.8, a temperature of 72 ° C and an extraction time of 90 minutes.
  • the disadvantage of this method is that in the extraction process is not achieved a sufficiently high cleaning effect.
  • the technical result of the invention is to increase the cleaning effect of beet juice at the extraction stage and at the stage of lime treatment, reducing lime consumption and sucrose loss in the filter cake.
  • the technical result is achieved by the proposed method, which includes obtaining beet chips, scalding it before feeding it into the diffusion apparatus or heating it in the latter, extracting sucrose from the chips with feed water, removing diffusion juice from the apparatus and unloading the pulp, introducing an aqueous solution, containing a non-anionic flocculant and an acidic reagent into the feed water supply zone of the diffusion apparatus body, as well as the introduction of an inorganic coagulant solution and a calcium hydroxide solution into the beet chip supply zone or into the middle zone of the apparatus body to purify the juice from high molecular weight compounds and colloidal dispersion substances simultaneously with extraction .
  • An inorganic coagulant solution and an acidic reagent solution are introduced into the obtained diffusion juice to a pH of 4.5-5.5 to coagulate high molecular weight compounds and colloidal dispersed impurities in an acidic medium.
  • milk of lime is added to the diffusion juice until a pH of 6.5-8.5 is reached, a solution of a non-anionic flocculant is introduced, it is heated to 60-65 0 C and a reagent is introduced to accelerate the process of flocculation of non-sugar particles, the precipitate formed is separated, and then the juice is defecated with lime milk to a pH of 10.8-11.4.
  • An inorganic flocculant solution a decolorizing reagent is added to the defecated juice, the pH is adjusted to 9.1-9.3 with an acidic reagent, heated to 70-75 0 C, the pH is reduced to 7.8-8.2 and filtered. Refined juice is sent to thicken and boil massecuite. After heating to 70-75 ° C, it is advisable to add a solution of a non-cationic flocculant to the defecated juice.
  • non-anionic flocculants polycationites and polyampholytes can be used, in particular quaternary ammonium salts, polyepichlorohydrin dimethylamines, polydiallyldimethylammonium halides, cationic and nonionic polyacrylamides, organoelement polyflocculants, starch, starch / dextrin 10 mg, 10 mg yellow gel.
  • orthophosphoric or polyphosphoric acid is used in an amount of 20-120 mg / l of juice.
  • titanium salts as well as basic aluminum salts, activated by the multivalent anions of orthotitanic, polyphosphoric, silicic, or sulfuric acids, should be used, and aluminum oxalate, titanium, aluminum and iron sulfates, basic aluminum chloride in active form, and hydroxocomplexes and freshly precipitated hydroxides in an amount of 0.0001-0.008% by weight of beets.
  • Silicon-polymer compounds in an amount of 0.005-0.01% by weight of beets, active silicic acid - 0.0001-0.03% by weight of beets, modified aluminosilicate compounds in an amount of 0.001-0.009% can be used as a reagent that accelerates the process of flocculation of non-sugar particles. to the mass of beets.
  • Organic and inorganic peroxides and hydroperoxides in particular, hydrogen peroxide in an amount of 10-90 mg / l, as well as ozone, sulfur dioxide, should be used as a bleaching reagent.
  • non-cationic flocculants it is advisable to use polyanionites and polyampholytes, in particular, non-ionic and anionic polyacrylamides, sodium alginate, carboxymethyl cellulose, gelatin, casein, and also a mixture of aluminosilicate with organic modifiers in an amount of 10-100 mg / l.
  • the method is as follows.
  • Beet root crops are ground in beet slicers to produce beet chips.
  • the latter is scalded before being fed to the column diffusion apparatus or it is heated directly in the screw diffusion apparatus. Chips are extracted with feed water, the diffusion juice is removed from the apparatus with a temperature of 40-45 0 C and a pH of 5.6-6.5 and the pulp is unloaded from it.
  • An aqueous solution is prepared containing a non-anionic flocculant and an acidic reagent.
  • polycationites and polyampholytes can be used, in particular, quaternary ammonium salts, polyepichlorohydrin dimethylamines, polydiallyldimethylammonium halides, cationic and nonionic polyacrylamides, organoelement polyflocculants, starch, starch / dextrin 10 mg, gelatin.
  • acidic reagents orthophosphoric or polyphosphoric acid is used in an amount of 20-120 mg / l of juice. This solution is introduced into the apparatus body into the feed water supply zone.
  • An inorganic coagulant solution and a calcium hydroxide solution are introduced into the beet chip supply zone or into the middle zone of the diffusion apparatus body.
  • titanium and basic aluminum salts are used, activated with multivalent anions of orthotitanic, polyphosphoric, silicic, or sulfuric acids, and they use aluminum oxalate, titanium, aluminum and iron sulfates, basic aluminum chloride in the active form, their hydroxocomplexes and freshly precipitated hydroxides in an amount of 0.0001-0.008% by weight of beets.
  • a slightly acidic medium of the juice-chip mixture with a pH of ⁇ 5.6-6.5 is formed.
  • Substances of colloidal dispersion (VCD) are extracted from the chips into diffusion juice during the entire extraction period, and high molecular weight compounds (IUDs) of non-sugars go into diffusion juice in the middle and last zones of the apparatus.
  • VCD colloidal dispersion
  • IUDs high molecular weight compounds
  • the method involves the deposition and coagulation of IUDs inside plant cells of beet chips with an improvement in the elastic modulus of beet tissue. This is achieved by the fact that a solution of the indicated inorganic coagulant is introduced into the chip supply zone into the extractor, and a solution of a non-anionic flocculant is introduced into the feed zone into the feed water apparatus.
  • Separate input of the inorganic coagulant and flocculant into the diffusion apparatus provides for the preparation of the active forms of metal hydroxides in the saponified mixture and their subsequent flocculation.
  • the Al, Ti, Fe aquions and their one, two, or three substituted ions are cation exchangers and form dispersed and colloidal formations with negatively charged sugar, moreover, an active dispersed colloidal solution created directly in the juice-chip mixture aqua-hydroxocomplexes and hydroxides of metal salts has a positive potential.
  • Nesugar of diffusion juice is a colloidal dispersed mass characterized by a negative potential.
  • dispersed particles of non-sugars are coagulated and adsorbed onto sparingly soluble coagulant salts, which partially settle on the walls of beet chips, which strengthens the shell of the chips.
  • the non-sugar particles coagulated on its surface are affected by a flocculant moving with feed water towards the chips.
  • a flocculant moving with feed water towards the chips.
  • adsorption of negatively charged non-sugar colloids by polyions takes place, coagulated particles are aggregated into aggregates, and IUDs are precipitated and flocculated inside the cell, which prevents their transition to diffusion juice and increases the elasticity modulus of beet chips.
  • IUDs precipitated and flocculated inside the cell, which prevents their transition to diffusion juice and increases the elasticity modulus of beet chips.
  • the diffusion juice taken from the extractor has a higher purity than that obtained by the known method, and the number of non-sugars in the pulp is increased by more than 0.8-0.9%.
  • This high purification effect of beet juice is due to the effective interaction inorganic coagulant with a flocculant and the effect of their combined effect on nesugar during the extraction process.
  • a solution of one of the inorganic coagulants mentioned above and a solution of an acid reagent, also mentioned above, are added to the resulting diffusion juice to pH 4.5-5.5 to coagulate high molecular weight compounds and colloidal dispersed impurities in an acidic medium, then add to the diffusion juice milk of lime until a pH of 6.5-8.5 is reached, a solution of a non-anionic flocculant is introduced, heated to 60-65 ° C and a reagent is introduced that accelerates the process of flocculation of non-sugar particles and the precipitate formed is separated by filtration or settling.
  • Silicon-polymer compounds in an amount of 0.005-0.01% by weight of beets, active silicic acid - 0.0001-0.03% by weight of beets, modified aluminosilicate compounds in an amount of 0.001-0.009% by weight are used as a reagent accelerating the process of flocculation of non-sugar particles. beets.
  • the synergistic effect is used during the interaction of an inorganic coagulant and an organic flocculant and a reagent that accelerates the process of flocculation of non-sugar particles and their adsorption.
  • the resulting diffusion juice is subjected to purification from non-sugars, taking into account the following ongoing processes.
  • the hydrolysis reaction of aqueous solutions of inorganic coagulant metal salts can proceed in an acidic environment of diffusion juice at a pH of 3.5-6.5 and its temperature of 40 ° - 50 ° C. This determines one of the conditions for the use of inorganic coagulant in the purification of diffusion juice.
  • Another condition determining the use of an inorganic coagulant is the isoelectric region of activity of the hydroxides of its salts. For example, for aluminum hydroxide AI (OH) 3, the lowest solubility corresponds to a pH of 6.5-7.8. At pH ⁇ 6.5, partially soluble oxisolates of the cationic type are formed; at pH> 7.8, soluble anionic aluminates are formed.
  • the conditions for the use of inorganic coagulant based on salts aluminum metals for the acidic environment of diffusion juice are: coagulation of non-sugars at a pH of 4.5-6.5 and a process temperature of 40 ° - 50 0 C, the formation of a precipitate and its separation at pH 6.5-7.8. These conditions are provided for purification of diffusion juice from non-sugars using an inorganic coagulant based on aluminum salts.
  • active metal hydroxide such as, for example, Al (OH) 3 • pNGO gradually loses NgO and decomposes, it is necessary to flocculate freshly coagulated with the help of active hydroxide non-anionic flocculant, and to accelerate the process, use a flocculation catalyst.
  • the juice is defecated with milk of lime in an amount of 0.1-0.3% CaO at a temperature of 50-65 0 C until a pH of 10.8-11.4 is reached, while part of the VCP and IUD coagulates under the influence of lime, but part non-sugars and reducing substances decompose and partially peptize into solution. Most of these non-sugars are coagulated by the introduction of an inorganic coagulant, which is an anion exchange resin, at a juice pH of 9.1-9.3.
  • an inorganic coagulant which is an anion exchange resin
  • a bleaching reagent is added to the juice, using organic or inorganic peroxides and hydroperoxides, in particular, hydrogen peroxide in an amount of 10-90 mg / l, as well as ozone, sulfur dioxide.
  • the juice is heated to 70-75 ° C, the pH is reduced to 7.8-8.2 with an acidic reagent, filtered and the purified juice is sent to thicken and boil massecuite.
  • Example 1 In a twin-screw diffusion apparatus serves beet chips having a sugar content (Cx) of 15.5%, solids (CB) of 19.05%, the purity (C) of beet juice is 81, 38%, heated, a non-anionic solution is prepared flocculant - polyelectrolyte polyepichlorohydrin dimethylamine in the amount of 60 mg / l of juice and acid reagent - phosphoric acid in the amount of 40 mg / l of juice. This solution is introduced into the feed water zone with a pH of 7.8 and a temperature of 72 0 C in the apparatus body.
  • a solution of inorganic coagulant - aluminum oxalate in the amount of 65 mg / l of juice and a solution of calcium hydroxide - 75 mg / l of juice (0.05% by weight of beets) are prepared and these solutions are fed into the supply and heating zone of beet chips.
  • the diffusion juice obtained by chip extraction has a purity of 4-86.5%.
  • the content of non-sugars in pulp is 0.85%, the effect of juice purification is -31, 8%.
  • a solution of an inorganic coagulant is introduced into the diffusion juice — a solution of titanium sulfate salt TiO (SO 4 ) 2 "1" in an amount of 10 mg / l of juice and a solution of an acidic reagent - phosphoric acid H 3 PO 4 until a pH of 4.5 is reached for coagulation of high molecular weight compounds and colloidal dispersion in an acidic environment.
  • 75 mg / L CaO (0.05% by weight of beets) is introduced into the acidic environment of the juice until a pH of 7.5 is reached and a non-anionic flocculant solution is introduced, heated to 65 0 C, and a colloidal silicon solution is introduced to accelerate the flocculation process acid in the amount of 5 mg / l of juice and direct the juice into the sump to separate the sediment of non-sugars.
  • An inorganic coagulant solution is added to the defecated juice - a solution of titanium sulfate salt in an amount of 7 mg / l of juice, a decolorizing reagent - hydrogen peroxide in an amount of 50 mg / l of juice and phosphoric acid until a pH of 9.2 is formed, heated to 75 0 C, reduced acidic reagent juice pH to 8.1 and filter the juice to separate the precipitate.
  • the purity of Ch juice is 93.9%, sugar content (Cx) - 14.46%, solids (CB) - 15.4%.
  • the overall effect of EO purification is 71.6%.
  • Example 2 Beet shavings with a sugar content (Cx) of 15.1%, solids (CB) of 18.4%, and a purity (H) of beet juice of 82.1% are fed to the scalder shaft of the diffusion column apparatus.
  • This solution is introduced into the feed water zone with a pH of 7.8 and a temperature of 72 ° C in the apparatus body.
  • Diffusion juice obtained as a result of chip extraction has a purity of Ch - 86.9%.
  • the content of non-sugars in beet pulp is 0.9%, the effect of purifying beet juice is 30.86%.
  • a solution of inorganic coagulant in an amount of 10 mg / l of juice and a solution of an acidic reagent, orthophosphoric acid are introduced into the obtained diffusion juice until pH 5.0 is reached for coagulation of high molecular weight compounds and colloidal dispersed impurities in an acidic medium.
  • milk of lime is introduced in an amount of 75 mg / l (0.05% CaO by weight of beets) until a pH of 7.5 is reached and a solution of non-anionic flocculant in an amount of 40 mg / l of juice is introduced, heated to 65 ° C, a solution is introduced colloidal silicic acid in an amount of 5 mg / l of juice and direct the juice into the sump to separate the sediment of non-sugars.
  • Sludge juice defecated with milk of lime to pH 11, 4.
  • a solution of inorganic coagulant in an amount of 7 mg / l juice is added to the defecated juice, a bleaching reagent is hydrogen peroxide in an amount of 30 mg / l juice and phosphoric acid until a pH of 9.2 is formed, heated to 75 ° C, and the pH of the juice is reduced with an acidic reagent to 8 , 1 and filter the juice to separate the precipitate.
  • a bleaching reagent is hydrogen peroxide in an amount of 30 mg / l juice and phosphoric acid until a pH of 9.2 is formed, heated to 75 ° C, and the pH of the juice is reduced with an acidic reagent to 8 , 1 and filter the juice to separate the precipitate.
  • the purity of Ch juice is 94.3%
  • the sugar content (Cx) is 14.1%
  • the solids content (CB) is 15.0%.
  • the overall effect of EO cleaning is 72.7%.
  • Example 3 In a twin-screw diffusion apparatus serves beet chips, having a sugar content (Cx) of 15.5%, solids (CB) of 18.9%, and the purity (H) of beet juice is 82.0%.
  • An aqueous solution of a non-anionic flocculant — polydiallyldimethylammonium chloride — is prepared in an amount of 40 mg / l of juice and an acid reagent — phosphoric acid in an amount of 30 mg / l of juice. This solution is introduced into the feed zone. water with a pH of 7.8 and a temperature of 72 ° C in the device.
  • Diffusion juice obtained as a result of chip extraction has a purity of Ch - 88.7%, sugar content (Cx) - 14.6%, solids (CB) - 16.5%.
  • the content of non-sugars in beet pulp is 1.05%, the effect of purifying beet juice is 41.8%.
  • a solution of inorganic coagulant in the amount of 10 mg / l of juice and a solution of an acid reagent, orthophosphoric acid are introduced into the diffusion juice to achieve pH 5.0 for coagulation of high molecular weight compounds and colloidal dispersed impurities in an acidic medium.
  • 75 mg / L of lime (0.05% CaO by weight of beets) is introduced into the acidic environment of the juice until a pH of 7.5 is reached and a solution of non-anionic flocculant is added in the amount of 40 mg / L of juice, heated to 65 ° C, a solution is introduced colloidal silicic acid in an amount of 5 mg / l of juice and direct the juice into the sump to separate the sediment of non-sugars.
  • a solution of inorganic coagulant in an amount of 7 mg / l of juice is added to the defecated juice, a bleaching reagent is hydrogen peroxide in an amount of 30 mg / l of juice and phosphoric acid until pH 9.2 is formed, and a non-cationic flocculant anionic polyacrylamide (Magofolos LT 27) is introduced in an amount 20 mg / l of juice, heated to 75 ° C, reduced the pH of the juice with an acidic reagent to 8.1 and filtered the juice to separate the precipitate.
  • the purity of Ch juice is 96.7%, sugar content (Cx) - 14.5%, solids (CB) - 15.0%.
  • the overall effect of EO purification is 84.4%.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Organic Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

Le procédé de l'invention comprend la formation d'un résidu de non-sucres lors de l'extraction de saccharose dans un appareil de diffusion par la liaison de non-sucres azotés ou non azotés à poids moléculaire élevé et de substances à dispersion colloïdale, leur sédimentation sur des cossettes de betterave et leur évacuation du jus de diffusion avec la poulpe, l'agrégation des particules de dispersion de non-sucres dans un milieu neutre à acide du suc de diffusion, leur coagulation, leur floculation et leur évacuation avec le réside par filtration ou par décantation, la défécation du filtrat, l'exécution d'un processus de coagulation et de floculation des non-sucres du suc déféqué dans un milieu alcalin, la séparation du résidu et la neutralisation du suc purifié ainsi que la concentration du jus et l'ébullition de la masse cuite. Le procédé utilise la synergie de l'interaction de coagulants des solutions de sels de métaux et de floculants organiques de polymères synthétiques, leur utilisation dans ce processus technique, ce qui permet d'augmenter sensiblement la pureté des solutions sucrées et d'abréger le processus technologique au stade de purification à la chaux et au dioxyde de carbone.
PCT/RU2006/000138 2006-03-24 2006-03-24 Procédé de fabrication de sucre WO2007111523A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CNA2006800538126A CN101400807A (zh) 2006-03-24 2006-03-24 糖的生产方法
PCT/RU2006/000138 WO2007111523A1 (fr) 2006-03-24 2006-03-24 Procédé de fabrication de sucre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/RU2006/000138 WO2007111523A1 (fr) 2006-03-24 2006-03-24 Procédé de fabrication de sucre

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WO2007111523A1 true WO2007111523A1 (fr) 2007-10-04

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CN (1) CN101400807A (fr)
WO (1) WO2007111523A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD4211C1 (ro) * 2006-01-28 2013-10-31 Sudzucker Aktiengesellschaft Mannheim/Ochsenfurt Procedeu de purificare a zemii de difuziune de sfeclă de zahăr şi instalaţii pentru realizarea acestuia
US20210340637A1 (en) * 2016-11-28 2021-11-04 Ideps Gmbh Method of producing juice from sugar-containing raw materials

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101736095B (zh) * 2009-12-24 2012-02-29 南宁盟凯工贸有限公司 糖厂甘蔗混合汁的磷酸-过氧化氢澄清的方法
KR20140033026A (ko) * 2011-03-29 2014-03-17 도레이 카부시키가이샤 당액의 제조 방법

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3479221A (en) * 1966-11-15 1969-11-18 Hercules Inc Sugar purification
US4382823A (en) * 1981-09-24 1983-05-10 The Coca Cola Company Process for the purification of sugar syrups
SU1377294A1 (ru) * 1985-10-05 1988-02-28 Научно-Производственное Объединение По Проектированию И Внедрению Новой Техники И Прогрессивной Технологии,Совершенствованию Организации Производства И Труда "Укрпищепроектмеханизация" Способ получени диффузионного сока
WO1996015274A1 (fr) * 1994-11-15 1996-05-23 Cultor Oy Procede de decoloration de solutions
RU2255980C2 (ru) * 2003-03-07 2005-07-10 Карапутадзе Темури Мусаевич Способ производства сахара

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3479221A (en) * 1966-11-15 1969-11-18 Hercules Inc Sugar purification
US4382823A (en) * 1981-09-24 1983-05-10 The Coca Cola Company Process for the purification of sugar syrups
SU1377294A1 (ru) * 1985-10-05 1988-02-28 Научно-Производственное Объединение По Проектированию И Внедрению Новой Техники И Прогрессивной Технологии,Совершенствованию Организации Производства И Труда "Укрпищепроектмеханизация" Способ получени диффузионного сока
WO1996015274A1 (fr) * 1994-11-15 1996-05-23 Cultor Oy Procede de decoloration de solutions
RU2255980C2 (ru) * 2003-03-07 2005-07-10 Карапутадзе Темури Мусаевич Способ производства сахара

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD4211C1 (ro) * 2006-01-28 2013-10-31 Sudzucker Aktiengesellschaft Mannheim/Ochsenfurt Procedeu de purificare a zemii de difuziune de sfeclă de zahăr şi instalaţii pentru realizarea acestuia
US20210340637A1 (en) * 2016-11-28 2021-11-04 Ideps Gmbh Method of producing juice from sugar-containing raw materials

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