CN104152589A - Ammonium carbonate salt-based cane sugar juice clarifying, decolouring and decontaminating method - Google Patents
Ammonium carbonate salt-based cane sugar juice clarifying, decolouring and decontaminating method Download PDFInfo
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- CN104152589A CN104152589A CN201310172708.0A CN201310172708A CN104152589A CN 104152589 A CN104152589 A CN 104152589A CN 201310172708 A CN201310172708 A CN 201310172708A CN 104152589 A CN104152589 A CN 104152589A
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 235000011389 fruit/vegetable juice Nutrition 0.000 title claims abstract description 40
- PRKQVKDSMLBJBJ-UHFFFAOYSA-N ammonium carbonate Chemical compound N.N.OC(O)=O PRKQVKDSMLBJBJ-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 229930006000 Sucrose Natural products 0.000 title abstract description 8
- 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 title abstract description 8
- 229960004793 sucrose Drugs 0.000 title abstract description 4
- 235000000346 sugar Nutrition 0.000 claims abstract description 42
- 239000006188 syrup Substances 0.000 claims abstract description 38
- 235000020357 syrup Nutrition 0.000 claims abstract description 38
- 239000000839 emulsion Substances 0.000 claims abstract description 18
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical class O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 15
- 235000012538 ammonium bicarbonate Nutrition 0.000 claims abstract description 14
- 238000006243 chemical reaction Methods 0.000 claims abstract description 14
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 12
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 12
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 11
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000292 calcium oxide Substances 0.000 claims abstract description 10
- 230000003311 flocculating effect Effects 0.000 claims abstract description 10
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 9
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 7
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 7
- 239000013078 crystal Substances 0.000 claims abstract description 6
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 5
- 230000001105 regulatory effect Effects 0.000 claims abstract description 3
- 239000012535 impurity Substances 0.000 claims description 34
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 26
- 241000209051 Saccharum Species 0.000 claims description 19
- 150000003839 salts Chemical class 0.000 claims description 15
- 240000000111 Saccharum officinarum Species 0.000 claims description 13
- 235000007201 Saccharum officinarum Nutrition 0.000 claims description 13
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 13
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 6
- 238000010792 warming Methods 0.000 claims description 6
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 5
- 230000035484 reaction time Effects 0.000 claims description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract description 20
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract description 10
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract description 6
- 235000011941 Tilia x europaea Nutrition 0.000 abstract description 6
- 239000004571 lime Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 abstract description 2
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical group [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 abstract 6
- 239000001099 ammonium carbonate Substances 0.000 abstract 6
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 abstract 3
- 235000012501 ammonium carbonate Nutrition 0.000 abstract 3
- 239000007789 gas Substances 0.000 abstract 1
- 235000021552 granulated sugar Nutrition 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 238000006467 substitution reaction Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 9
- 235000011116 calcium hydroxide Nutrition 0.000 description 9
- 229910052799 carbon Inorganic materials 0.000 description 9
- 239000000049 pigment Substances 0.000 description 8
- 235000012255 calcium oxide Nutrition 0.000 description 6
- 238000005352 clarification Methods 0.000 description 6
- 238000004042 decolorization Methods 0.000 description 6
- 238000001556 precipitation Methods 0.000 description 6
- 238000007670 refining Methods 0.000 description 5
- 239000004615 ingredient Substances 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 239000008187 granular material Substances 0.000 description 3
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Chemical compound OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000009923 sugaring Methods 0.000 description 2
- MIDXCONKKJTLDX-UHFFFAOYSA-N 3,5-dimethylcyclopentane-1,2-dione Chemical compound CC1CC(C)C(=O)C1=O MIDXCONKKJTLDX-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 235000013736 caramel Nutrition 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000618 nitrogen fertilizer Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to an ammonium carbonate salt-based cane sugar juice clarifying, decolouring and decontaminating method including the following steps: adding a proper amount of calcium hydroxide emulsion or calcium oxide emulsion and ammonium carbonate salt into sugar juice, fully mixing for reaction for 0 to 45 minutes; heating the sugar juice to 50 to 100 DEG C to remove ammonia produced by the reaction, regulating the sugar juice pH value to 7.0-7.5; continuing heating up to 70 to 100 DEG C, adding 1-15ppm of polyacrylamide flocculant for flocculating settling, and separating settled flocculate to obtain clarified, decoloured and decontaminated sugar juice. The ammonium carbonate salt is ammonium carbonate, ammonium hydrogen carbonate, crystal water-containing ammonium carbonate, or crystal water-containing ammonium hydrogen carbonate; and the sugar juice is mixed cane sugar juice, clear juice or syrup, or a brown granulated sugar redissolution solution; the ammonium carbonate salt (ammonium carbonate or ammonium hydrogen carbonate) is used for substitution of carbon dioxide gas for reacting with lime emulsion to produce calcium carbonate particles precipitate, the decontaminating method is used for clarifying, decolouring and decontaminating the sugar juice, and the clarifying, decolouring and decontaminating effect is good.
Description
Technical field
The present invention relates to a kind of method of the sugarcane juice clarify and decolorize removal of impurities based on ammonium carbonate salts.
Background technology
Carbonatation process sugar refining technology is that the carbon dioxide from limestone kiln or boiler flue is passed in the sugarcane juice (or syrup) of pre-ash and reacted, obtain newborn precipitation of calcium carbonate, the impurity such as pigment in newborn precipitation of calcium carbonate particle absorption syrup, then add flocculant aid to carry out flocculating settling.The effect of the clarify and decolorize removal of impurities of carbon method sugar refining technology is better than sulfurous method, as high in the sugar part rate of recovery, white sugar product colour is low, residual low, the commerieal sugar of sulphur is stored nondiscoloration etc.But carbonatation process technique is still difficult to promote, and domestic only minority sugar refinery is used at present.Mainly because carbonatation process technique need to consume a large amount of unslaked lime and carbon dioxide, alkaline mud amount is large and contaminate environment; In addition CO,
2as the not high (CO in the carbon method full charge process of sugar refinery of utilization of carbon source rate
2specific absorption only has 60% left and right), CO
2the problems such as gas reacts with lime slurry slowly, technical process long (if any twice carbonic acid gas full charge technique), and Technology is strong, therefore, carbon method technique is necessary to improve.
Brown sugar (Saccharum Sinensis Roxb.) is the latter end crystallized product in cane sugar manufacture technique.Brown sugar (Saccharum Sinensis Roxb.) because of foreign matter content and colour high, be not received by the market, each sugar enterprise generally heavily boils brown sugar (Saccharum Sinensis Roxb.) back dissolving or interplants, to reduce or not produce brown sugar (Saccharum Sinensis Roxb.).But due to brown sugar (Saccharum Sinensis Roxb.) solution non-sugar ingredient content and colour higher, the direct back dissolving of brown sugar (Saccharum Sinensis Roxb.) is heavily boiled or interplants, and affects that the quality of white sugar, particularly colour are higher even to exceed standard.Therefore, decolouring impurity removing technology heavily boils or interplants that to produce white sugar most important to red sand back dissolving.Because the pigment in brown sugar (Saccharum Sinensis Roxb.) is mainly the polymer colored substance producing in carbohydrate decomposition and boiling-off process, be dark brown to brown color.The crystal rate of transform of caramel colorant and melanoidin pigment is very high, more much bigger than the pigment of sugarcane juice itself (plant pigments) on the impact of commerieal sugar colour, so the clarify and decolorize of brown sugar (Saccharum Sinensis Roxb.) back dissolving solution has become current sugaring circle Research Challenges.
Relevant sugar juice decoloring technology, sugaring worker in countries in the world has carried out a large amount of research, the methods such as the finings of ion-exchange, macroporous resin adsorption, membrane sepn, super freezing and crystallizing, biological enzyme and inorganic-organic hybrid type and clarification process thereof have successively been proposed, but cost is high, technical strong, in China, not yet can apply.At present, the main technique of using is the auxiliary processes such as sulfitation process craft, carbonatation process technique and phosphorus are floating, secondary sulphur floats.
Therefore, the clarification process that exploitation clarify and decolorize is effective, adult is low, easy and simple to handle, has great importance to the development of China's sugar refining technology.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of method that sugarcane juice clarify and decolorize removal of impurities based on ammonium carbonate salts is provided, the method ammonium carbonate salts and milk of lime reaction generate calcium carbonate solids precipitation, newly-generated calcium carbonate granule is positively charged, can adsorb the non-sugar ingredients such as pigment in liquid glucose, thereby reach the object of clarify and decolorize removal of impurities, the method clarification process is simple, be easy to control, and clarify and decolorize removal of impurities effective solved above-mentioned problems of the prior art.
The technical scheme solving the problems of the technologies described above is: a kind of method of the sugarcane juice clarify and decolorize removal of impurities based on ammonium carbonate salts, comprises the following steps:
A, by 100mL syrup, add 0.4-1.5g calcium hydroxide or 0.3-1.14g calcium oxide, 100mL syrup adds 0.5-1.8g ammonium carbonate salts meter, in syrup, add calcium hydroxide emulsion or calcium oxide emulsion and ammonium carbonate salts, abundant hybrid reaction 0-45 minute, described ammonium carbonate salts is volatile salt, bicarbonate of ammonia or volatile salt, the bicarbonate of ammonia that contains crystal water; Described syrup is Cane Mixed Juice, clear juice, syrup or brown sugar (Saccharum Sinensis Roxb.) back dissolving solution;
B, syrup is heated to the 50-100 ℃ of ammonia generating except dereaction again, regulating syrup pH value is 7.0-7.5;
C, continue to be warming up to 70-100 ℃, add polyacrylamide flocculant 1-15ppm to carry out flocculating settling, after the throw out of separate and subside, obtain the syrup after clarify and decolorize removal of impurities.
Further technical scheme of the present invention is: in step B, with phosphoric acid, sulfurous acid or to pass in sulfur dioxide gas, carbon dioxide and regulate syrup pH value be 7.0-7.5.
The mass concentration of described calcium hydroxide emulsion or calcium oxide emulsion is 5-15%.
Described brown sugar (Saccharum Sinensis Roxb.) back dissolving strength of solution is 5～30wt%.
In steps A, the hybrid reaction time is 15-30 minute.
The present invention makes carbon source with ammonium carbonate salts, utilizes ammonium carbonate salts (volatile salt or bicarbonate of ammonia) to substitute carbon dioxide, reacts and generates calcium carbonate solids precipitation, for syrup clarification, decolouring, removal of impurities with lime slurry.Newly-generated calcium carbonate granule is positively charged, can adsorb the non-sugar ingredients such as pigment in liquid glucose, thereby reaches the object of clarify and decolorize removal of impurities.Reaction equation is as follows:
Ca(OH)
2+(NH
4)
2CO
3→CaSO
3↓+2NH
3↑+2H
2O
Ca(OH)
2+NH
4HCO
3→CaSO
3↓+NH
3↑+2H
2O
Volatile salt or bicarbonate of ammonia are common nitrogenous fertilizer, and production technology is ripe, wide material sources.The inventive method proposes with volatile salt or bicarbonate of ammonia, as carbon source, react generate precipitation of calcium carbonate particle with lime slurry, for the juice liming removal of impurities of decolouring, has obtained desirable effect.Volatile salt or bicarbonate of ammonia react the ammonia generating with lime slurry, can from syrup, overflow by type of heating rear water and absorb as fertilizer sources, do not cause environmental pollution, also syrup are not had a negative impact.
Adopt method of the present invention and technique; compare with conventional carbon acid system sugar refining technology; the utilization ratio of carbon source is high; the speed of precipitation of calcium carbonate reaction is fast; calcium carbonate granule activity is high; adsorptivity ability to the non-sugar ingredients such as pigment in syrup is strong, clarify and decolorize removal of impurities effective, and the carbon source of using and the amount of lime of consumption and the filter mud of generation have largely and reduce simultaneously.The method clarification process is simple, be easy to control.
Below, in conjunction with the accompanying drawings and embodiments the technical characterictic of the method for a kind of sugarcane juice clarify and decolorize removal of impurities based on ammonium carbonate salts of the present invention is further described.
Accompanying drawing explanation
Fig. 1: process flow sheet of the present invention.
Embodiment
Embodiment 1: the clarify and decolorize removal of impurities to brown sugar (Saccharum Sinensis Roxb.) back dissolving solution.
Getting 100mL concentration is the brown sugar (Saccharum Sinensis Roxb.) back dissolving solution of 15wt%, adding 9mL mass concentration is 10% calcium hydroxide emulsion and the volatile salt of 1.1 grams, fully hybrid reaction is 15 minutes, be heated to for the first time (the ammonia used water of effusion absorbs) after 70 ℃ of ammonias except dereaction generation, add appropriate phosphoric acid solution (volume ratio of phosphoric acid and water is 1:1) to be neutralized to pH value to 7.0, heating for the second time continues to be warming up to after 100 ℃, add polyacrylamide flocculant 6ppm to carry out flocculating settling, after separated throw out, obtain the syrup after clarify and decolorize removal of impurities, percent of decolourization 52.9%.
Embodiment 2: the clarify and decolorize removal of impurities to Cane Mixed Juice.
Get the Cane Mixed Juice of 100mL, adding 10.33g mass concentration is 10% calcium oxide emulsion and 1.1 grams of volatile salts, fully hybrid reaction is 20 minutes, reheat to 70 ℃ of ammonias except dereaction generation, add appropriate phosphoric acid solution (volume ratio of phosphoric acid and water is 1:1) to be neutralized to pH value to 7.0, then be warmed up to after 100 ℃, add polyacrylamide flocculant 5ppm to carry out flocculating settling, after separated throw out, obtain the syrup after clarify and decolorize removal of impurities, percent of decolourization 32.09%.
Embodiment 3: the clarify and decolorize removal of impurities to brown sugar (Saccharum Sinensis Roxb.) back dissolving solution.
Getting 100mL concentration is the brown sugar (Saccharum Sinensis Roxb.) back dissolving solution of 15 wt %, adding 7.15g mass concentration is 10% calcium oxide emulsion and the volatile salt of 0.8 gram, fully hybrid reaction is 15 minutes, be heated to, after 70 ℃ of ammonias except dereaction generation, add appropriate phosphoric acid solution (volume ratio of phosphoric acid and water is 1:1) to be neutralized to pH value to 7.0, continue to be warming up to after 100 ℃, add polyacrylamide flocculant 4ppm to carry out flocculating settling, after separated throw out, obtain the syrup after clarify and decolorize removal of impurities, percent of decolourization 49.7%.
Embodiment 4: the clarify and decolorize removal of impurities to Cane Mixed Juice.
Get the Cane Mixed Juice of 100mL, adding 13mL mass concentration is 10% calcium hydroxide emulsion and 0.7 gram of volatile salt, fully hybrid reaction is 20 minutes, reheat to 70 ℃ of ammonias except dereaction generation, add appropriate phosphoric acid solution (volume ratio of phosphoric acid and water is 1:1) to be neutralized to pH value to 7.0, then be warmed up to after 100 ℃, add polyacrylamide flocculant 5ppm to carry out flocculating settling, after separated throw out, obtain the syrup after clarify and decolorize removal of impurities, percent of decolourization 61.7%.
Embodiment 5: the clarify and decolorize removal of impurities to brown sugar (Saccharum Sinensis Roxb.) back dissolving solution.
Getting 100mL concentration is the brown sugar (Saccharum Sinensis Roxb.) back dissolving solution of 15wt %, adding 11mL mass concentration is 10% calcium hydroxide emulsion and the volatile salt of 1.0 grams, fully hybrid reaction is 15 minutes, be heated to, after 70 ℃ of ammonias except dereaction generation, add appropriate phosphoric acid solution (volume ratio of phosphoric acid and water is 1:1) to be neutralized to pH value to 7.0, continue to be warming up to after 100 ℃, add polyacrylamide flocculant 5ppm to carry out flocculating settling, after separated throw out, obtain the syrup after clarify and decolorize removal of impurities, percent of decolourization 52.1%.
Embodiment 6: to clear clarification of juice decolouring removal of impurities.
Get the clear juice of 100mL, adding 5mL mass concentration is 10% calcium hydroxide emulsion and 0.5 gram of bicarbonate of ammonia, fully hybrid reaction is 30 minutes, be heated to, after 60 ℃ of ammonias except dereaction generation, add appropriate sulfurous acid solution (volume ratio of sulfurous acid and water is 1:1) to be neutralized to pH value to 7.0, continue to be warming up to after 90 ℃, add polyacrylamide flocculant 3ppm to carry out flocculating settling, after separated throw out, obtain the syrup after clarify and decolorize removal of impurities, percent of decolourization 35.8%.
Mass concentration described in the embodiment of the present invention is that the density of 10% calcium hydroxide emulsion is 1.05g/mL.
As a kind of conversion of various embodiments of the present invention, described ammonium carbonate salts, except adopting volatile salt and bicarbonate of ammonia, can also adopt volatile salt, bicarbonate of ammonia containing crystal water.Regulate syrup pH value except adopting phosphoric acid and sulfurous acid, can also pass in sulfur dioxide gas or carbon dioxide and regulate syrup pH value.
Various embodiments of the present invention all can be used for the clarify and decolorize removal of impurities of Cane Mixed Juice, clear juice, syrup or brown sugar (Saccharum Sinensis Roxb.) back dissolving solution.
The sugar refining technology that the sugarcane of take is raw material, makes white sugar, raw sugar etc. through extraction of the juice, peace and quiet, evaporation, crystallization, purging and the operation such as dry.Mixing juice of the present invention refers to the syrup that extraction of the juice operation makes, and described clear juice refers to the syrup that peace and quiet operation makes, and described syrup refers to the syrup that evaporization process makes.
Claims (5)
1. a method for the sugarcane juice clarify and decolorize removal of impurities based on ammonium carbonate salts, is characterized in that: comprise the following steps:
A, by 100mL syrup, add 0.4-1.5g calcium hydroxide or 0.3-1.14g calcium oxide, 100mL syrup adds 0.5-1.8g ammonium carbonate salts meter, in syrup, add calcium hydroxide emulsion or calcium oxide emulsion and ammonium carbonate salts, abundant hybrid reaction 0-45 minute, described ammonium carbonate salts is volatile salt, bicarbonate of ammonia or volatile salt, the bicarbonate of ammonia that contains crystal water; Described syrup is Cane Mixed Juice, clear juice, syrup or brown sugar (Saccharum Sinensis Roxb.) back dissolving solution;
B, syrup is heated to the 50-100 ℃ of ammonia generating except dereaction again, regulating syrup pH value is 7.0-7.5;
C, continue to be warming up to 70-100 ℃, add polyacrylamide flocculant 1-15ppm to carry out flocculating settling, after the throw out of separate and subside, obtain the syrup after clarify and decolorize removal of impurities.
2. the method for a kind of sugarcane juice clarify and decolorize removal of impurities based on ammonium carbonate salts according to claim 1, is characterized in that: in step B, with phosphoric acid, sulfurous acid or to pass in sulfur dioxide gas, carbon dioxide and regulate syrup pH value be 7.0-7.5.
3. the method for a kind of sugarcane juice clarify and decolorize removal of impurities based on ammonium carbonate salts according to claim 1 and 2, is characterized in that: the mass concentration of described calcium hydroxide emulsion or calcium oxide emulsion is 5-15%.
4. the method for a kind of sugarcane juice clarify and decolorize removal of impurities based on ammonium carbonate salts according to claim 1 and 2, is characterized in that: described brown sugar (Saccharum Sinensis Roxb.) back dissolving strength of solution is 5～30wt%.
5. the method for a kind of sugarcane juice clarify and decolorize removal of impurities based on ammonium carbonate salts according to claim 1 and 2, is characterized in that: in steps A, the hybrid reaction time is 15-30 minute.
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| CN109971892A (en) * | 2019-04-30 | 2019-07-05 | 广东省生物工程研究所（广州甘蔗糖业研究所） | A kind of sugar-cane juice is clarified without sulphur and desalination system and method |
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Cited By (4)
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| CN104673940A (en) * | 2015-02-05 | 2015-06-03 | 佐源集团有限公司 | Method for purifying endive sugar juice |
| CN105063244A (en) * | 2015-08-07 | 2015-11-18 | 广西南宁派腾科技有限公司 | Technology for decolorization and impurity removal of saccharum officinarum juice |
| CN105132593A (en) * | 2015-09-18 | 2015-12-09 | 山东创利添加剂研发科技有限公司 | Method for preparing crystalline fructose and crystal glucose from maize straw |
| CN109971892A (en) * | 2019-04-30 | 2019-07-05 | 广东省生物工程研究所（广州甘蔗糖业研究所） | A kind of sugar-cane juice is clarified without sulphur and desalination system and method |
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