CN112593016A - Process for preparing high-quality white granulated sugar and fulvic acid dry powder from beet - Google Patents
Process for preparing high-quality white granulated sugar and fulvic acid dry powder from beet Download PDFInfo
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- CN112593016A CN112593016A CN202011532328.XA CN202011532328A CN112593016A CN 112593016 A CN112593016 A CN 112593016A CN 202011532328 A CN202011532328 A CN 202011532328A CN 112593016 A CN112593016 A CN 112593016A
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- 235000016068 Berberis vulgaris Nutrition 0.000 title claims abstract description 30
- 241000335053 Beta vulgaris Species 0.000 title claims abstract description 30
- 235000021552 granulated sugar Nutrition 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- PUKLDDOGISCFCP-JSQCKWNTSA-N 21-Deoxycortisone Chemical compound C1CC2=CC(=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@@](C(=O)C)(O)[C@@]1(C)CC2=O PUKLDDOGISCFCP-JSQCKWNTSA-N 0.000 title claims abstract description 17
- FCYKAQOGGFGCMD-UHFFFAOYSA-N Fulvic acid Natural products O1C2=CC(O)=C(O)C(C(O)=O)=C2C(=O)C2=C1CC(C)(O)OC2 FCYKAQOGGFGCMD-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 229940095100 fulvic acid Drugs 0.000 title claims abstract description 17
- 239000002509 fulvic acid Substances 0.000 title claims abstract description 17
- 239000000843 powder Substances 0.000 title claims abstract description 17
- 235000011389 fruit/vegetable juice Nutrition 0.000 claims abstract description 76
- 235000000346 sugar Nutrition 0.000 claims abstract description 69
- 238000000034 method Methods 0.000 claims abstract description 52
- 238000002425 crystallisation Methods 0.000 claims abstract description 22
- 230000008025 crystallization Effects 0.000 claims abstract description 22
- 239000011347 resin Substances 0.000 claims abstract description 19
- 229920005989 resin Polymers 0.000 claims abstract description 19
- 239000006188 syrup Substances 0.000 claims abstract description 19
- 235000020357 syrup Nutrition 0.000 claims abstract description 19
- 150000001768 cations Chemical class 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 11
- 238000013375 chromatographic separation Methods 0.000 claims abstract description 9
- 238000001914 filtration Methods 0.000 claims abstract description 9
- 238000004806 packaging method and process Methods 0.000 claims abstract description 8
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 6
- CZMRCDWAGMRECN-UHFFFAOYSA-N Rohrzucker Natural products OCC1OC(CO)(OC2OC(CO)C(O)C(O)C2O)C(O)C1O CZMRCDWAGMRECN-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 6
- 239000011575 calcium Substances 0.000 claims abstract description 6
- 239000012535 impurity Substances 0.000 claims abstract description 6
- 229910021645 metal ion Inorganic materials 0.000 claims abstract description 5
- 238000000746 purification Methods 0.000 claims abstract description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 23
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 21
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 21
- 239000004571 lime Substances 0.000 claims description 16
- 230000001172 regenerating effect Effects 0.000 claims description 9
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims description 7
- 229910001424 calcium ion Inorganic materials 0.000 claims description 7
- 241000219310 Beta vulgaris subsp. vulgaris Species 0.000 claims description 6
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims description 6
- 229930006000 Sucrose Natural products 0.000 claims description 6
- 235000021536 Sugar beet Nutrition 0.000 claims description 6
- 238000002386 leaching Methods 0.000 claims description 6
- 238000011049 filling Methods 0.000 claims description 5
- 125000002091 cationic group Chemical group 0.000 claims description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 239000000084 colloidal system Substances 0.000 claims description 3
- -1 organic acid calcium salt Chemical class 0.000 claims description 3
- 239000005720 sucrose Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 7
- 238000004140 cleaning Methods 0.000 abstract description 6
- 230000008929 regeneration Effects 0.000 abstract description 6
- 238000011069 regeneration method Methods 0.000 abstract description 6
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 abstract 2
- 238000000926 separation method Methods 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 description 8
- 230000008020 evaporation Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 235000013379 molasses Nutrition 0.000 description 8
- 239000011734 sodium Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000011552 falling film Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 229960004793 sucrose Drugs 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- KWIUHFFTVRNATP-UHFFFAOYSA-N Betaine Natural products C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 description 2
- KWIUHFFTVRNATP-UHFFFAOYSA-O N,N,N-trimethylglycinium Chemical compound C[N+](C)(C)CC(O)=O KWIUHFFTVRNATP-UHFFFAOYSA-O 0.000 description 2
- 229960003237 betaine Drugs 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000004587 chromatography analysis Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000011143 downstream manufacturing Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 235000010987 pectin Nutrition 0.000 description 1
- 229920001277 pectin Polymers 0.000 description 1
- 239000001814 pectin Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
- C13B20/00—Purification of sugar juices
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
- C08H6/00—Macromolecular compounds derived from lignin, e.g. tannins, humic acids
-
- 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
- C13B20/00—Purification of sugar juices
- C13B20/12—Purification of sugar juices using adsorption agents, e.g. active carbon
-
- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
- C13B20/00—Purification of sugar juices
- C13B20/14—Purification of sugar juices using ion-exchange materials
- C13B20/144—Purification of sugar juices using ion-exchange materials using only cationic ion-exchange material
-
- 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
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Water Supply & Treatment (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
Abstract
The invention discloses a process for preparing high-quality white granulated sugar and fulvic acid dry powder from beet, which comprises the following specific steps: 1) treating sugar juice by a carbonic acid method: removing suspended impurities and metal ions in the beet sugar juice by a carbonic acid method, and filtering twice to obtain second clear juice; 2) decalcification treatment: adopting cation Na type resin and adopting single column treatment; 3) chromatographic separation: the sugar juice is decalcified to reduce the calcium content in the solution, and purified sugar and non-sugar are obtained by separation through a chromatographic separation system; 4) concentration and crystallization: a four-stage crystallization purification process is adopted to reduce the color value of the syrup; the white granulated sugar with high purity can be obtained after concentration and drying; concentrating the non-sugar components, and drying to obtain fulvic acid dry powder; 5) packaging: and packaging and selling the finished product. Based on the juice cleaning stage in the sugar juice cleaning process, the invention adopts a strong cation resin exchange process, and dilute juice is used as regeneration liquid, so that the sugar juice is not diluted, has no sugar loss, and can be recycled.
Description
Technical Field
The invention relates to a process for preparing white granulated sugar, in particular to a process for preparing high-quality white granulated sugar and fulvic acid dry powder from beet.
Background
The beet is an important sugar crop, the sugar beet provides about 40 percent of global sugar, the beet can be used for preparing sugar, can also be used for preparing fuel ethanol, extracting betaine, beet fiber, preparing pectin and the like, and is one of the most concerned dominant energy crops all over the world at present. The comprehensive utilization of the beet not only reduces the sugar production cost of the beet and changes waste into valuable, but also opens up a new resource approach. The comprehensive utilization, development and research of beet has attracted the attention and exploration of researchers at home and abroad. At present, domestic sugar factories usually adopt a carbonic acid method process to produce high-quality white granulated sugar, but the treatment of the method can cause the production of carbonic acid method filter mud, thus causing environmental pollution; the addition of excess lime results in excess of Cao in the syrup, which affects the purification of sugar and the value-added processes of the molasses downstream processes.
Disclosure of Invention
The invention aims to provide a process for preparing high-quality white granulated sugar and fulvic acid dry powder from beet, which can effectively solve the problems.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the invention relates to a process for preparing high-quality white granulated sugar and fulvic acid dry powder from beet, which comprises the following specific steps:
1) treating sugar juice by a carbonic acid method: removing suspended impurities and metal ions in the beet sugar juice by a carbonic acid method, and filtering twice to obtain second clear juice;
2) decalcification treatment: adopting cation Na type resin, adopting single column treatment, consisting of 2 columns, producing in one column, regenerating in one column, passing dilute juice through the single column while the other system is regenerating, producing downstream, and regenerating in countercurrent;
3) chromatographic separation: the sugar juice of beet is decalcified, can reduce the calcium content in the sugar juice, separate and get purified sugar and nonsugar through the chromatographic separation system;
4) concentration and crystallization: the syrup adopts a four-stage crystallization purification process, so that the color value of the syrup is reduced; the white granulated sugar with high purity can be obtained after concentration and drying; concentrating the non-sugar solution, and drying to obtain fulvic acid dry powder;
5) packaging: and packaging and selling the finished product.
Preferably, the carbonic acid method in the step 1) is implemented by firstly adding a small amount of lime which is 0.5-0.8% of the weight of the beet into beet exudation juice, namely pre-lime, so that colloid is condensed and organic acid calcium salt is precipitated, and adding lime which is 2.0-2.5% of the weight of the beet into the pre-lime juice after heating to form main lime, so that non-sugar in the sugar juice is decomposed, and conditions are created for later carbon dioxide saturation.
Preferably, in the step 2), dilute juice decalcification treatment is performed by using a cationic Na-type resin, and excessive calcium ions in the sugar juice treated by a carbonation method are removed.
Preferably, the cationic Na-type resin feed in the step 2) is clarified by using the leaching liquor and is filled with the filtered dilute juice for the second time, the temperature of the syrup is 80-90 ℃, the Cao content is 100-250mg/L, the amount of the suspension is 40-60mg/L, and the purity of the cane sugar is 85-95%.
Preferably, the discharging of the cationic Na-type resin in the step 2) is clarified by using a leaching solution, and the diluted juice is subjected to secondary filling and filtering, wherein the temperature of syrup is 85-97 ℃, the Cao content is 0-20mg/L, the amount of a suspension is 40-60mg/L, and the purity of cane sugar is 85-95%.
Compared with the prior art, the invention has the advantages that: based on the juice cleaning stage in the sugar juice cleaning process, the invention adopts a strong cation resin exchange process, and dilute juice is used as regeneration liquid, so that the sugar juice is not diluted, has no sugar loss and can be recycled; the process provided by the invention has the advantages that the removal rate of calcium ions in the dilute juice reaches more than 90%, the softened sugar juice with good quality is provided for the production of downstream sugar and molasses, the downstream process value increment of sugar and molasses is realized, the sugar juice is not diluted in the decalcification process, and the zero discharge of wastewater is realized.
Drawings
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a process flow of the dilute juice decalcification process of the present invention.
FIG. 3 is a flow chart of the carbonation process for sugar juice according to the present invention;
Detailed Description
The invention will be further explained with reference to the drawings.
Referring to fig. 1, 2 and 3, the process for preparing high-quality white granulated sugar and fulvic acid dry powder from sugar beets comprises the following specific steps:
1) treating sugar juice by a carbonic acid method: removing suspended impurities and metal ions in the beet sugar juice by a carbonic acid method, and filtering twice to obtain second clear juice;
2) decalcification treatment: adopting cation Na type resin, adopting single column treatment, consisting of 2 columns, producing in one column, regenerating in one column, passing dilute juice through the single column while the other system is regenerating, producing downstream, and regenerating in countercurrent;
3) chromatographic separation: the sugar juice of beet is decalcified, can reduce the calcium content in the sugar juice, separate and get purified sugar and nonsugar through the chromatographic separation system;
4) concentration and crystallization: the syrup adopts a four-stage crystallization purification process, so that the color value of the syrup is reduced; the white granulated sugar with high purity can be obtained after concentration and drying; concentrating the non-sugar solution, and drying to obtain fulvic acid dry powder;
5) packaging: and packaging and selling the finished product.
The carbonic acid method in the step 1) is characterized in that firstly, a small amount of lime which is 0.5-0.8% of the weight of the beet is added into beet exudation juice, namely pre-lime, so that colloid is condensed and organic acid calcium salt is precipitated, lime which is 2.0-2.5% of the weight of the beet is added into the pre-lime juice after the pre-lime juice is heated, the lime is main lime, non-sugar in sugar juice is decomposed, and conditions are created for carbon dioxide saturation in the later period; the white granulated sugar treated by the carbonation method has high quality, the generated precipitate can adsorb a plurality of organic non-sugar substances and various pigments contained in the sugar juice and precipitate together, and clear juice can be obtained by filtering, but simultaneously, a large amount of lime is required to be added for treatment, so that a large amount of calcium ions are left in the filtrate, which can affect the beet sugar production process, the production efficiency and the purity quality of sugar, and can affect the later extraction of the sugar component and the non-sugar component of the beet molasses by utilizing the chromatographic technique; and in the step 2), the dilute juice decalcification treatment is carried out by adopting the cation Na type resin, so that redundant calcium ions of the sugar juice treated by the carbonation method can be removed, and the aims of thoroughly removing impurities and decalcification are fulfilled.
The sugar juice is treated by the carbonic acid method, suspended impurities and metal ions in the beet sugar juice are removed by the carbonic acid method, and the second clear juice is obtained by twice filtration; among them, a sulfurous acid method may be used instead of the carbonic acid method.
In the step 2), dilute juice decalcification treatment is carried out by adopting cation Na type resin, redundant calcium ions of the sugar juice treated by a carbonation method are removed, the decalcification treatment is a set of ion-based exchange process, sodium ions in the resin replace calcium ions to complete softening of the sugar juice, the regeneration of the resin is made by using the decalcified dilute juice and concentrated (50%) caustic alkali, acid regeneration is not needed, hydrolysis of sugar is not generated, and wastewater is not generated.
The decalcification treatment in the step 2) is carried out after the sugar juice is treated and filtered by a carbonic acid method to obtain second clear juice in the process of sugar juice cleaning: the cation Na type resin feed is clarified by adopting a leaching solution, and the diluted juice is subjected to secondary filling and filtration, wherein the syrup temperature is 80-90 ℃, the Cao content is 100-250mg/L, the suspension content is 40-60mg/L, and the sucrose purity is 85-95%.
The decalcification treatment in the step 2) is carried out after the sugar juice is treated and filtered by a carbonic acid method to obtain second clear juice in the process of sugar juice cleaning: discharging the cation Na type resin, clarifying by using a leaching solution, filling the leached solution for the second time with the filtered dilute juice, wherein the temperature of the syrup is 85-97 ℃, the Cao content is 0-20mg/L, the amount of the suspension is 40-60mg/L, and the purity of the cane sugar is 85-95%.
The resin regeneration is carried out by using the softened dilute juice after decalcification, and the softened dilute juice is recycled to the upstream pre-ash or main ash process stage, so that the regeneration process has no water consumption and sugar loss and does not produce sewage.
If no dilute juice decalcification system is arranged in the early production process, the content of calcium in the beet molasses reaches 100-250mg/L, the beet molasses cannot directly enter a chromatographic analysis system, cannot be separated to obtain sugar and non-sugar, and further concentrated and dried to obtain betaine, fulvic acid dry powder and the like, and the molasses needs to enter a chromatographic separation system, a set of chemical calcium removal device is additionally arranged in the preorder of the beet molasses, so that the time and the labor are consumed, and the pollution is increased.
The color value reduction of the four-section crystallization purified syrup refers to that the crude sugar generated by one-sand crystallization in the existing three-section crystallization process of the beet processing factory is dissolved back and then enters a sand crystallization tank for crystallization and boiling, the color value of the crystallized white granulated sugar can be reduced to be within 30IU units, the national standard requirements are met, the product color value can be effectively reduced, and the equipment utilization rate is improved. The four-stage crystallization and decoloration process is technically feasible, the scheme of effectively reducing the color value of the purified syrup by the four-stage crystallization process has low investment cost, does not generate three wastes, and can realize clean production; the four-section crystallization process re-dissolves the raw sugar produced by the first sand crystallization in the existing three-section crystallization process, and then the raw sugar enters a sand crystallization tank for crystallization and boiling, and the color value of the crystallized white granulated sugar can be reduced to be within 30IU units, so that the color value meets the national standard requirement and reaches the index of qualified products. The process can realize the requirements of the four-section crystallization process by modifying the process pipeline of the existing three-section crystallization process, is convenient to modify, can effectively reduce the color value of the product, and improves the utilization rate of equipment.
Concentrating and drying: 1) purifying the syrup: after the materials enter the falling film heat exchange tube through the MVR concentration evaporation system, the materials are vaporized by heat supplied by steam, then the materials enter a steam-water separator, the material steam is compressed by a compression fan and heated and then returns to a heat exchanger, liquid is sent into the falling film tube through a circulating pump for circulating reciprocating evaporation, when the separated materials are detected to be qualified through a density meter, the materials are sent out of the system through a discharge pump, and the material brix in the process is concentrated from 30% to 65%.
MVR concentration index and running consumption of purified syrup
The evaporation capacity is 8.08 t/h;
the steam consumption is 0.06t/h, and the steam pressure is 0.3 MPa;
cooling circulation water amount of 10m3/h；
The installed capacity is 230.5 kw;
equipment investment: 512 ten thousand yuan.
2) Non-sugar residue liquid: the brix is 4.5%, the handling capacity is 67 tons/hour, the mixture is firstly concentrated from 4.5% to 9.5% by an MVR concentration system, the evaporation water amount is 35 tons/hour, the non-sugar residue amount is 31.60 tons/hour, then the mixture enters a six-effect falling film evaporation system, the brix of the residue is concentrated from 9.5% to 60%, the evaporation water amount is 26.5 tons/hour, the non-sugar residue amount is 5 tons/hour, and the concentrated non-sugar residue enters a drying system. The alcohol waste liquid enters a six-effect falling film evaporation system, is concentrated from 7 percent to 60 percent through the brix of the concentrated material, and the concentrated alcohol waste liquid is pumped to a drying system.
Non-sugar residue concentration index and consumption
The evaporation capacity is 61.5 t/h;
steam consumption is 6.7t/h, and steam pressure is 0.3 MPa;
cooling circulating water quantity of 816m3/h；
The installed capacity is 1465.5 kw;
equipment investment: 1769 ten thousand yuan.
The purified syrup concentration system adopts an MVR evaporator, and the sugar extraction residual liquid is pre-concentrated by using the MVR evaporator and then concentrated by using a multi-effect falling film evaporator.
Claims (5)
1. A process for preparing high-quality white granulated sugar and fulvic acid dry powder from beet is characterized by comprising the following specific steps:
1) treating sugar juice by a carbonic acid method: removing suspended impurities and metal ions in the beet sugar juice by a carbonic acid method, and filtering twice to obtain second clear juice;
2) decalcification treatment: adopting cation Na type resin, adopting single column treatment, consisting of 2 columns, producing in one column, regenerating in one column, passing dilute juice through the single column while the other system is regenerating, producing downstream, and regenerating in countercurrent;
3) chromatographic separation: the sugar juice of beet is decalcified, can reduce the calcium content in the sugar juice, separate and get purified sugar and nonsugar through the chromatographic separation system;
4) concentration and crystallization: the syrup adopts a four-stage crystallization purification process, so that the color value of the syrup is reduced; the white granulated sugar with high purity can be obtained after concentration and drying; concentrating the non-sugar solution, and drying to obtain fulvic acid dry powder;
5) packaging: and packaging and selling the finished product.
2. The process for preparing high-quality white granulated sugar and fulvic acid dry powder from sugar beets as claimed in claim 1, wherein: the carbonic acid method in the step 1) is characterized in that a small amount of lime which is 0.5-0.8% of the weight of the beet is added into the beet exudation juice, namely pre-lime, so that colloid is condensed and organic acid calcium salt is precipitated, the lime which is 2.0-2.5% of the weight of the beet is added into the pre-lime juice after the pre-lime juice is heated, the lime is main lime, certain non-sugar in the sugar juice is decomposed, and conditions are created for carbon dioxide saturation in the later period.
3. The process for preparing high-quality white granulated sugar and fulvic acid dry powder from sugar beets as claimed in claim 1, wherein: in the step 2), dilute juice decalcification treatment is carried out by adopting cation Na type resin, and redundant calcium ions in the sugar juice after the treatment by a carbonic acid method are removed.
4. The process for preparing high-quality white granulated sugar and fulvic acid dry powder from sugar beets as claimed in claim 1, wherein: and in the step 2), the cation Na type resin is fed and clarified by using a leaching solution, and the diluted juice is subjected to secondary filling and filtration, wherein the syrup temperature is 80-90 ℃, the Cao content is 100-250mg/L, the suspended matter content is 40-60mg/L, and the sucrose purity is 85-95%.
5. The process for preparing high-quality white granulated sugar and fulvic acid dry powder from sugar beets as claimed in claim 1, wherein: and 2) clarifying the discharged cationic Na-type resin by using a leaching solution in the step 2), and filling the filtered dilute juice for the second time, wherein the syrup temperature is 85-97 ℃, the Cao content is 0-20mg/L, the suspended matter content is 40-60mg/L, and the purity of the sucrose is 85-95%.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112593017A (en) * | 2020-12-15 | 2021-04-02 | 新疆冠农果茸股份有限公司 | Efficient separation method for sugar in sugar production of beet |
| CN114606350A (en) * | 2021-10-22 | 2022-06-10 | 欧尚元(天津)有限公司 | Beet sugar decalcification system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403017A (en) * | 2008-10-31 | 2009-04-08 | 华南理工大学 | Regeneration method for di-mix honey de-kalium-sodium resin |
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