CN103276113B - Method for adjusting addition of flocculants in stoving neutral juice based on zeta potential value - Google Patents
Method for adjusting addition of flocculants in stoving neutral juice based on zeta potential value Download PDFInfo
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- CN103276113B CN103276113B CN201310168261.XA CN201310168261A CN103276113B CN 103276113 B CN103276113 B CN 103276113B CN 201310168261 A CN201310168261 A CN 201310168261A CN 103276113 B CN103276113 B CN 103276113B
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- juice
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- sulphitation
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- 235000011389 fruit/vegetable juice Nutrition 0.000 title claims abstract description 208
- 238000000034 method Methods 0.000 title claims abstract description 35
- 230000007935 neutral effect Effects 0.000 title abstract 8
- 239000008394 flocculating agent Substances 0.000 title abstract 4
- 125000002091 cationic group Chemical group 0.000 claims abstract description 32
- 125000000129 anionic group Chemical group 0.000 claims abstract description 23
- 150000001875 compounds Chemical class 0.000 claims abstract description 13
- 238000006386 neutralization reaction Methods 0.000 claims description 116
- 238000005189 flocculation Methods 0.000 claims description 97
- 230000016615 flocculation Effects 0.000 claims description 97
- 239000003795 chemical substances by application Substances 0.000 claims description 96
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 42
- 239000002131 composite material Substances 0.000 claims description 27
- 230000015572 biosynthetic process Effects 0.000 claims description 16
- 229920000333 poly(propyleneimine) Polymers 0.000 claims description 15
- 229920001661 Chitosan Polymers 0.000 claims description 12
- 238000005352 clarification Methods 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 claims description 9
- 238000007670 refining Methods 0.000 claims description 7
- 229920002125 Sokalan® Polymers 0.000 claims description 6
- 239000004584 polyacrylic acid Substances 0.000 claims description 6
- 102000004169 proteins and genes Human genes 0.000 claims description 5
- 108090000623 proteins and genes Proteins 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 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 abstract description 4
- 229930006000 Sucrose Natural products 0.000 abstract description 4
- 238000013329 compounding Methods 0.000 abstract 1
- 230000003311 flocculating effect Effects 0.000 abstract 1
- 229960004793 sucrose Drugs 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 description 3
- 241000209051 Saccharum Species 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000693 micelle Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000006188 syrup Substances 0.000 description 2
- 235000020357 syrup Nutrition 0.000 description 2
- 240000000111 Saccharum officinarum Species 0.000 description 1
- 235000007201 Saccharum officinarum Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 description 1
- 235000010261 calcium sulphite Nutrition 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to a method for adjusting addition of flocculants in stoving neutral juice based on the zeta potential value. The method comprises the following steps of: based on the zeta initial potential value of the stoving neutral juice or the zeta potential value of clean juice after the stoving neutral juice is flocculated and clarified, adding types of flocculants in different use levels to the stoving neutral juice, and guiding compounding of different flocculants to form a compound flocculant; when the zeta initial potential value of the stoving neutral juice or the zeta potential value of clean juice is a negative value, selecting a cationic flocculant, and maintaining the zeta potential value Phi1 of the clean juice in the range: Phi1 is greater than or equal to -2.1 and less than or equal to -1.9; when the zeta initial potential value of the stoving neutral juice or the zeta potential value of clean juice is a positive value, selecting a anionic flocculant, and maintaining the zeta potential value Phi1 of the clean juice in the range: Phi2 is greater than or equal to -2.7 and less than or equal to -2.4. The method not only ensures that the stoving neutral juice has the optimal flocculating and clarifying effect, but also is material-saving, and the quality of cane sugar is improved.
Description
Technical field
The present invention relates to a kind of sugar refining technology method, relate in particular to a kind of improved cane juice clarification processing method.
Background technology
Clarification operation is the critical process of sub-method sugar refining technology, and the effect of Sulphitation and Neutralization juice flocculate and clarify is directly connected to the quality of juice clearly, comprises colour, turbidity and sugared purity etc., and then affects the quality of white sugar product.In sugar clarification operation, by adding polyacrylamide flocculant, Sulphitation and Neutralization juice is carried out to flocculate and clarify removal of impurities, the add-on of flocculation agent is general 3-10ppm, flocculation agent consumption is higher or on the low side all will affect the effect of flocculate and clarify.In actual production process, due to the fluctuation of raw material sugarcane and related process, cause Sulphitation and Neutralization juice unstable, the optimum amount of flocculation agent also must be adjusted thereupon, therefore, should regulate in time according to the situation of Sulphitation and Neutralization juice the optimum amount of flocculation agent, guarantee best flocculate and clarify effect.At present, the optimum addition of sugar refinery Main Basis knowhow control flocculation agent in conjunction with the quality of clear juice, carries out regulation and control afterwards simultaneously; Like this, the consumption of flocculation agent is not often optimum amount, does not reach desirable flocculate and clarify effect, thereby causes that juice quality is low clearly, and then affects the quality of white sugar product.
Summary of the invention
The object of this invention is to provide a kind of method of adding flocculation agent in Sulphitation and Neutralization juice that regulates based on zeta potential value, adopt the method to select the kind of flocculation agent and to regulate in time the optimum amount of flocculation agent according to the zeta potential value of the clear juice after the initial zeta potential value of Sulphitation and Neutralization juice or Sulphitation and Neutralization juice flocculate and clarify, guarantee best flocculate and clarify effect; Prior art above shortcomings are solved preferably.
The technical scheme solving the problems of the technologies described above is: a kind of method of adding flocculation agent in Sulphitation and Neutralization juice that regulates based on zeta potential value, it is characterized in that: the method be using the initial zeta potential value of Sulphitation and Neutralization juice as add to Sulphitation and Neutralization juice flocculation agent kind according to or using the zeta potential value of the clear juice after Sulphitation and Neutralization juice flocculate and clarify as the foundation of adding flocculation agent kind and consumption to Sulphitation and Neutralization juice, the method comprises following content:
A. the selection of flocculation agent kind:
1. in the time that the zeta potential value of the clear juice after initial zeta potential value or the Sulphitation and Neutralization juice flocculate and clarify of Sulphitation and Neutralization juice is negative value, select cationic flocculant;
2. when the zeta potential value of the clear juice after initial zeta potential value or the Sulphitation and Neutralization juice flocculate and clarify of Sulphitation and Neutralization juice be on the occasion of time, select anionic flocculant;
B. the selection of flocculation agent consumption:
Using the zeta potential value of the clear juice after Sulphitation and Neutralization juice flocculate and clarify as the foundation of adding flocculation agent consumption to Sulphitation and Neutralization juice, when the absolute value of the zeta potential value of the clear juice after Sulphitation and Neutralization juice flocculate and clarify hour, flocculation agent consumption is optimum amount.
Its further technical scheme is: in the selection of enforcement B. flocculation agent consumption, its concrete steps are:
In the clarification operation of existing sugar refining technology, measure at set intervals the zeta potential value of the clear juice after Sulphitation and Neutralization juice flocculate and clarify;
For adopting the Sulphitation and Neutralization juice of cationic flocculant, if the zeta potential value § 1 of the clear juice after Sulphitation and Neutralization juice flocculate and clarify is: when-2.0 the left and right, show consumption the best of flocculation agent, otherwise, should strengthen flocculation agent consumption until the zeta potential value § 1 of the clear juice after Sulphitation and Neutralization juice flocculate and clarify is :-2.1≤§ 1≤-1.9;
For adopting the Sulphitation and Neutralization juice of anionic flocculant, if the zeta potential value § 2 of the clear juice after Sulphitation and Neutralization juice flocculate and clarify is: when-2.5 the left and right, show consumption the best of flocculation agent, otherwise, should strengthen flocculation agent consumption until the zeta potential value § 2 of the clear juice after Sulphitation and Neutralization juice flocculate and clarify is :-2.7≤§ 2≤-2.4.
Its further technical scheme is: described cationic flocculant comprises: cationic polypropylene amine, cationic polyacrylic acid, polymerize aluminum chloride or chitosan.
Described anionic flocculant comprises: anionic polypropylene amine, anionic polyacrylic acid or protein.
Its further technical scheme be: the method also comprises that zeta potential value taking the clear juice after Sulphitation and Neutralization juice flocculate and clarify is as foundation, instruct the composite formation composite flocculation agent of different flocculation agents, wherein easily compression double electric layer, can be rapidly by the mode such as charge neutrality, absorption make composite flocculation agent that the zeta potential value of the clear juice after Sulphitation and Neutralization juice flocculate and clarify reduces rapidly for optimum composite;
Described composite flocculation agent comprises the composite flocculation agent of polymerize aluminum chloride and the compound formation of chitosan or the composite flocculation agent of cationic polypropylene amine and the compound formation of polymerize aluminum chloride;
In the composite flocculation agent of polymerize aluminum chloride and the compound formation of chitosan, the ratio of polymerize aluminum chloride and chitosan is: 1:1～10:1;
In the composite flocculation agent of cationic polypropylene amine and the compound formation of polymerize aluminum chloride, the ratio of cationic polypropylene amine and polymerize aluminum chloride is: 1:1～1:10.
The present invention regulates the square ratio juris and the beneficial effect that in Sulphitation and Neutralization juice, add flocculation agent to be based on zeta potential value:
To be the particulate such as polymer pigment, protein and calcium sulfite in polymeric flocculant and the defeco-sulfitated juice adding caught and rolled up by static neutralization, complexing, bridge formation, net the essence of Sulphitation and Neutralization juice flocculate and clarify the mechanism such as sweeps and cause in defeco-sulfitated juice that the flocculation of non-sugar ingredient is clear and fall; The consumption of flocculation agent directly has influence on the surperficial zeta current potential of polymer pigment, protein and micelle; Only have in the time that the surface charge of polymer and micelle is minimum or be zero that is the absolute value of zeta current potential hour, could realize best flocculate and clarify effect; Therefore, after the initial zeta potential value of Sulphitation and Neutralization juice or Sulphitation and Neutralization juice flocculate and clarify, the monitoring of the zeta potential value of clear juice is the important evidence of determining flocculation agent kind or kind and consumption, only have when the absolute value of the zeta current potential of clear juice after Sulphitation and Neutralization juice flocculate and clarify hour, the kind of flocculation agent and consumption are just the best; For this reason, the present invention is incorporated into zeta current potential in sugar refinery clarification operation, by the zeta potential value of the clear juice after initial zeta potential value or the Sulphitation and Neutralization juice flocculate and clarify of Real-Time Monitoring Sulphitation and Neutralization juice, select accordingly the kind of flocculation agent and regulate in time the optimum amount of flocculation agent, can guarantee best flocculate and clarify effect; Can reach again saving material, improve the object of sucrose quality.
Through several times experiment and analysis, patent application contriver of the present invention finds, for adopting the Sulphitation and Neutralization juice of cationic flocculant, if when the zeta potential value § 1 of the clear juice after Sulphitation and Neutralization juice flocculate and clarify is-2.0 left and right, show consumption the best of flocculation agent, otherwise, should strengthen flocculation agent consumption until the zeta potential value § 1 of the clear juice after Sulphitation and Neutralization juice flocculate and clarify is :-2.1≤§ 1≤-1.9;
For adopting the Sulphitation and Neutralization juice of anionic flocculant, if when the zeta potential value § 2 of the clear juice after Sulphitation and Neutralization juice flocculate and clarify is-2.5 left and right, show consumption the best of flocculation agent, otherwise, should strengthen flocculation agent consumption until the zeta potential value § 2 of the clear juice after Sulphitation and Neutralization juice flocculate and clarify is :-2.7≤§ 2≤-2.4.
brief description of the drawings: (nothing)
embodiment:
A kind of method of adding flocculation agent in Sulphitation and Neutralization juice that regulates based on zeta potential value, the method be using the initial zeta potential value of Sulphitation and Neutralization juice as add to Sulphitation and Neutralization juice flocculation agent kind according to or using the zeta potential value of the clear juice after Sulphitation and Neutralization juice flocculate and clarify as adding the kind of flocculation agent and the foundation of consumption to Sulphitation and Neutralization juice, the method comprises following content:
A. the selection of flocculation agent kind: using the zeta potential value of the clear juice after initial zeta potential value or the Sulphitation and Neutralization juice flocculate and clarify of Sulphitation and Neutralization juice as the foundation of adding flocculation agent kind to Sulphitation and Neutralization juice:
1. in the time that the zeta potential value of the clear juice after initial zeta potential value or the Sulphitation and Neutralization juice flocculate and clarify of Sulphitation and Neutralization juice is negative value, select cationic flocculant;
2. when the zeta potential value of the clear juice after initial zeta potential value or the Sulphitation and Neutralization juice flocculate and clarify of Sulphitation and Neutralization juice be on the occasion of time, select anionic flocculant;
B. the selection of flocculation agent consumption:
Using the zeta potential value of the clear juice after Sulphitation and Neutralization juice flocculate and clarify as the foundation of adding flocculation agent consumption to Sulphitation and Neutralization juice, when the absolute value of the zeta potential value of the clear juice after Sulphitation and Neutralization juice flocculate and clarify hour, flocculation agent consumption is optimum amount.
Its further technical scheme is: the present invention is based on zeta potential value and regulate the method for adding flocculation agent in Sulphitation and Neutralization juice in the selection of enforcement B. flocculation agent consumption, its concrete steps are:
In the clarification operation of existing sugar refining technology, measure at set intervals the zeta potential value of the clear juice after Sulphitation and Neutralization juice flocculate and clarify:
For adopting the Sulphitation and Neutralization juice of cationic flocculant, if the zeta potential value § 1 of the clear juice after Sulphitation and Neutralization juice flocculate and clarify is: when-2.0 the left and right, show consumption the best of flocculation agent, otherwise, should strengthen flocculation agent consumption until the zeta potential value § 1 of the clear juice after Sulphitation and Neutralization juice flocculate and clarify is :-2.1≤§ 1≤-1.9;
For adopting the Sulphitation and Neutralization juice of anionic flocculant, if the zeta potential value § 2 of the clear juice after Sulphitation and Neutralization juice flocculate and clarify is: when-2.5 the left and right, show consumption the best of flocculation agent, otherwise, should strengthen flocculation agent consumption until the zeta potential value § 2 of the clear juice after Sulphitation and Neutralization juice flocculate and clarify is :-2.7≤§ 2≤-2.4.
Still the zeta potential value of measuring the clear juice after Sulphitation and Neutralization juice flocculate and clarify according to the zeta potential value that adopts mensuration Sulphitation and Neutralization juice, has 2 two kinds of implementation methods of embodiment mono-and embodiment.
Embodiment mono-:
A kind of zeta potential value of the clear juice based on after Sulphitation and Neutralization juice flocculate and clarify regulates the method for adding flocculation agent in Sulphitation and Neutralization juice
In the clarification operation of existing sugar refining technology, first carry out steps A. the selection of flocculation agent kind:
1. in the time that the zeta potential value of the clear juice after Sulphitation and Neutralization juice flocculate and clarify is negative value, select cationic flocculant;
2. when the zeta potential value of clear juice after Sulphitation and Neutralization juice flocculate and clarify be on the occasion of time, select anionic flocculant.
Next carries out the selection of B. flocculation agent consumption, and at interval of 30 points of kinds, to the clear juice after Sulphitation and Neutralization juice flocculate and clarify, sampling should be carried out, measures the zeta potential value of the clear juice after Sulphitation and Neutralization juice flocculate and clarify:
For adopting the Sulphitation and Neutralization juice of cationic flocculant, if the zeta potential value § 1 of the clear juice after Sulphitation and Neutralization juice flocculate and clarify equal-2.0 or approach-2.0 o'clock, show consumption the best of flocculation agent, otherwise, should strengthen flocculation agent consumption until the zeta potential value § 1 of clear juice equals-2.0, or by the scope of zeta potential value § 1 remain on-2.1≤§ 1≤-1.9 of clear juice, (referring to subordinate list one: " adopting the zeta potential value § 1 and clear juice relationship between quality table look-up of the clear juice of cationic flocculant ").
For adopting the Sulphitation and Neutralization juice of anionic flocculant, if the zeta potential value § 2 of the clear juice after Sulphitation and Neutralization juice flocculate and clarify equal-2.5 or approach-2.5 o'clock, show consumption the best of flocculation agent, otherwise, should strengthen flocculation agent consumption until the zeta potential value § 2 of the clear juice after Sulphitation and Neutralization juice flocculate and clarify equals-2.5, or allow in the scope of zeta potential value § 2 remain on-2.7≤§ 2≤-2.4 of the clear juice after Sulphitation and Neutralization juice flocculate and clarify, (referring to subordinate list two: the zeta potential value § 2 and clear juice relationship between quality table look-up that adopt the clear juice of anionic flocculant).
Embodiment bis-
:
Regulate a method of adding flocculation agent in Sulphitation and Neutralization juice based on zeta potential value, the method is using the initial zeta potential value of Sulphitation and Neutralization juice as the foundation of adding flocculation agent kind to Sulphitation and Neutralization juice:
The basic step of the method is with the steps A of embodiment mono-. the selection of flocculation agent kind, the practice is in the clarification operation of existing sugar refining technology, inserts a sebific duct, at interval of 30 minutes from the ingate of settling bowl, extract Sulphitation and Neutralization juice once, measure its initial zeta potential value:
1. in the time that the initial zeta potential value of Sulphitation and Neutralization juice is negative value, select cationic flocculant;
2. when the initial zeta potential value of Sulphitation and Neutralization juice be on the occasion of time, select anionic flocculant.
In the embodiment of the present invention one and embodiment bis-, described cationic flocculant refers to: cationic polypropylene amine, cationic polyacrylic acid, polymerize aluminum chloride and chitosan etc.
Described anionic flocculant refers to: anionic polypropylene amine, anionic polyacrylic acid and protein etc.
Embodiment tri-:
A kind of zeta potential value of the clear juice based on after Sulphitation and Neutralization juice flocculate and clarify regulates the matching method that adds flocculation agent in Sulphitation and Neutralization juice, the method is that zeta potential value taking the clear juice after Sulphitation and Neutralization juice flocculate and clarify is as foundation, instruct the composite formation composite flocculation agent of different flocculation agents, wherein easily compression double electric layer, can be rapidly by the mode such as charge neutrality, absorption make composite flocculation agent that the zeta current potential of the clear juice after Sulphitation and Neutralization juice flocculate and clarify reduces rapidly for optimum composite;
Described composite flocculation agent comprises the composite flocculation agent of polymerize aluminum chloride and the compound formation of chitosan or the composite flocculation agent of cationic polypropylene amine and the compound formation of polymerize aluminum chloride;
In the composite flocculation agent of polymerize aluminum chloride and the compound formation of chitosan, the ratio of polymerize aluminum chloride and chitosan is: 1:1,1.5:1,2.0:1,2.5:1,3:1,4:1,5:1,6:1,7:1,8:1,9:1 or 10:1, total consumption of its interpolation is reduced to rapidly best with zeta potential value § 3.
In the composite flocculation agent of cationic polypropylene amine and the compound formation of polymerize aluminum chloride, the ratio of cationic polypropylene amine and polymerize aluminum chloride is: 1:1,1:1.5,1:2.0,1:2.5,1:3,1:4,1:5,1:6,1:7,1:8,1:9 or 1:10, total consumption of its interpolation is reduced to rapidly best with zeta potential value § 3.
Subordinate list one: the zeta potential value § 1 and clear juice relationship between quality table look-up that adopt the clear juice after cationic flocculant flocculate and clarify
Above-mentioned data are that brown sugar (Saccharum Sinensis Roxb.) retro-dissolved syrup Sulphitation and Neutralization process is added the zeta potential value of the clear juice of gained after different concns cationic flocculant flocculate and clarify and colour thereof, turbidity; In the time that the zeta of clear juice potential value is-2.03, its color value of clear juice 647.9, turbidity value 462.1 are minimum, and clear juice is best in quality, in actually operating, and can be by the arbitrary data values among the scope of the remain on-2.1≤§ of zeta potential value § 1≤-1.9 of clear juice.
Subordinate list two: the zeta potential value § 2 and clear juice relationship between quality table look-up that adopt the clear juice after anionic flocculant flocculate and clarify
Above-mentioned data are that brown sugar (Saccharum Sinensis Roxb.) retro-dissolved syrup Sulphitation and Neutralization process is added the zeta potential value § 2 of the clear juice of gained after the anionic flocculant flocculate and clarify of different concns and colour thereof, turbidity; In the time that the zeta of clear juice potential value § 2 is-2.46, its color value of clear juice 661.6, turbidity value 835.7 are minimum, and clear juice is best in quality, in actually operating, and can be by the zeta potential value of clear juice
§ 2arbitrary data values among the scope of remain on-2.7≤§ 2≤-2.4.
Claims (4)
1. one kind regulates the method for adding flocculation agent in Sulphitation and Neutralization juice based on zeta potential value, it is characterized in that: the method be using the initial zeta potential value of Sulphitation and Neutralization juice as add to Sulphitation and Neutralization juice flocculation agent kind according to or using the zeta potential value of the clear juice after Sulphitation and Neutralization juice flocculate and clarify as the foundation of adding flocculation agent kind and consumption to Sulphitation and Neutralization juice, the method comprises following content:
A. the selection of flocculation agent kind:
1. in the time that the zeta potential value of the clear juice after initial zeta potential value or the Sulphitation and Neutralization juice flocculate and clarify of Sulphitation and Neutralization juice is negative value, select cationic flocculant;
2. when the zeta potential value of the clear juice after initial zeta potential value or the Sulphitation and Neutralization juice flocculate and clarify of Sulphitation and Neutralization juice be on the occasion of time, select anionic flocculant;
B. the selection of flocculation agent consumption:
Using the zeta potential value of the clear juice after Sulphitation and Neutralization juice flocculate and clarify as the foundation of adding flocculation agent consumption to Sulphitation and Neutralization juice, when the absolute value of the zeta potential value of the clear juice after Sulphitation and Neutralization juice flocculate and clarify hour, flocculation agent consumption is optimum amount;
In the selection of enforcement B. flocculation agent consumption, its concrete steps are:
In the clarification operation of existing sugar refining technology, measure at set intervals the zeta potential value of the clear juice after Sulphitation and Neutralization juice flocculate and clarify;
For adopting the Sulphitation and Neutralization juice of cationic flocculant, if the zeta potential value § 1 of the clear juice after Sulphitation and Neutralization juice flocculate and clarify is :-2.0 o'clock, show consumption the best of flocculation agent, otherwise, should strengthen flocculation agent consumption until the zeta potential value § 1 of the clear juice after Sulphitation and Neutralization juice flocculate and clarify is :-2.1≤§ 1≤-1.9;
For adopting the Sulphitation and Neutralization juice of anionic flocculant, if the zeta potential value § 2 of the clear juice after Sulphitation and Neutralization juice flocculate and clarify is :-2.5 o'clock, show consumption the best of flocculation agent, otherwise, should strengthen flocculation agent consumption until the zeta potential value § 2 of the clear juice after Sulphitation and Neutralization juice flocculate and clarify is :-2.7≤§ 2≤-2.4.
2. the method for adding flocculation agent in Sulphitation and Neutralization juice that regulates based on zeta potential value according to claim 1, is characterized in that: described cationic flocculant comprises: cationic polypropylene amine, cationic polyacrylic acid, polymerize aluminum chloride or chitosan.
3. the method for adding flocculation agent in Sulphitation and Neutralization juice that regulates based on zeta potential value according to claim 1, is characterized in that: described anionic flocculant comprises: anionic polypropylene amine, anionic polyacrylic acid or protein.
4. the method for adding flocculation agent in Sulphitation and Neutralization juice that regulates based on zeta potential value according to claim 1, it is characterized in that: the method also comprises that zeta potential value taking the clear juice after Sulphitation and Neutralization juice flocculate and clarify is as foundation, instruct the composite formation composite flocculation agent of different flocculation agents, wherein easily compression double electric layer, can be rapidly by charge neutrality, suction type make composite flocculation agent that the zeta potential value of the clear juice after Sulphitation and Neutralization juice flocculate and clarify reduces rapidly for optimum composite;
Described composite flocculation agent comprises the composite flocculation agent of polymerize aluminum chloride and the compound formation of chitosan or the composite flocculation agent of cationic polypropylene amine and the compound formation of polymerize aluminum chloride;
In the composite flocculation agent of polymerize aluminum chloride and the compound formation of chitosan, the ratio of polymerize aluminum chloride and chitosan is: 1:1～10:1;
In the composite flocculation agent of cationic polypropylene amine and the compound formation of polymerize aluminum chloride, the ratio of cationic polypropylene amine and polymerize aluminum chloride is: 1:1～1:10.
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| CN101356958B (en) * | 2007-07-30 | 2012-12-19 | 广西工学院 | Sugar clarification technique method for intensifying sulphitation and neutralization reaction |
| CN101240353A (en) * | 2008-03-20 | 2008-08-13 | 广西南华糖业集团有限公司 | Technique for preparing sugar from beet sugar by phosphoric acid sulfurous acid method |
| CN102392081B (en) * | 2011-09-30 | 2013-08-28 | 广西轻工业科学技术研究院 | Flocculant special for preparing sugar and preparation method for flocculant |
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2013
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