CN100540683C - The process for purification of sugar soln and refining plant - Google Patents

The process for purification of sugar soln and refining plant Download PDF

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CN100540683C
CN100540683C CNB2005800080113A CN200580008011A CN100540683C CN 100540683 C CN100540683 C CN 100540683C CN B2005800080113 A CNB2005800080113 A CN B2005800080113A CN 200580008011 A CN200580008011 A CN 200580008011A CN 100540683 C CN100540683 C CN 100540683C
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sugar soln
sugar
exchange resin
soln
phenols
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CN1930307A (en
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山田響介
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Organo Corp
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Organo Corp
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    • CCHEMISTRY; METALLURGY
    • C13SUGAR INDUSTRY
    • C13BPRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B20/00Purification of sugar juices
    • C13B20/12Purification of sugar juices using adsorption agents, e.g. active carbon
    • CCHEMISTRY; METALLURGY
    • C13SUGAR INDUSTRY
    • C13BPRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B20/00Purification of sugar juices
    • C13B20/14Purification of sugar juices using ion-exchange materials

Abstract

In sugar soln refining, carry out adsorption treatment step that sugar soln is contacted with the phenols polymeric adsorbent and the ion exchange treatment step that sugar soln is contacted with ion exchange resin.For example, by with raw sugar solution 16 successively by phenols polymeric adsorbent container 10, strongly basic anion exchange resin container 12 with contain strongly basic anion exchange resin and the mixed bed container 14 of weakly acidic cation-exchange resin, thereby obtain not having the sugar soln 18 of malodorous refinement treatment.According to the fine purification treatment process of the sugar soln of this type, can remove any odor pollutant in the sugar soln, thereby prevent that odor pollutant is penetrated in the treated sugar soln.

Description

The process for purification of sugar soln and refining plant
Technical field
[0001] the present invention relates generally to the process for purification and the refining plant of sugar soln and relate more specifically to remove the process for purification and the refining plant of the sugar soln that the bad smell component is arranged that comprises in the sugar soln.
Background technology
[0002] the refining combination that comprises that typically the decolouring processing is handled as activated carbon treatment, bone black (bonechar) or disengaging of ion exchange resin treatment and use ion exchange resin treatment is handled of sugar soln.Under the situation of sucrose solution, the example that carries out the known architectures of this disengaging processing comprises so-called gegenion switching architecture, wherein sucrose solution is passed through strongly basic anion exchange resin container and weakly acidic cation-exchange resin container in order, the mixed bed system, wherein with sucrose solution by comprising the mixed bed container of strongly basic anion exchange resin and weakly acidic cation-exchange resin, with with sucrose solution in order by the strongly basic anion exchange resin container, with the mixed bed containment system that comprises strongly basic anion exchange resin and weakly acidic cation-exchange resin (for example, referring to Japanese Patent No.2785833).
Summary of the invention
[0003] recent, the stench that distributes from the sugar soln that experiences refinement treatment becomes problem.Although the concrete essence of these foul smelling components that comprise in the sugar soln of handling is unclear, known in addition after the final production process malodor components still be retained in the sugar soln, in sugared product quality, cause apparent deterioration.Therefore, be necessary to guarantee not keep in the sugar soln of the final processing that obtains after the treating process that relates to the foul smelling component of these types.
[0004] yet, use above-mentioned disengaging to handle, these foul smelling components are had any problem from the proof that removes of sugar soln, this breaks away from son and handles and adopt by TREATMENT OF ION EXCHANGE RESINS.
[0005] considers above-mentioned situation, the invention provides process for purification and refining plant that the sugar soln of the foul smelling component that comprises in the sugar soln is effectively sloughed in permission.
[0006] owing to the deep research of the present invention, the present inventor finds that the foul smelling component that comprises in the sugar soln can be removed when adopting the phenols polymeric adsorbent to handle sugar soln.
[0007] the present invention is based on this and find that a kind of process for purification of sugar soln is provided, and this method comprises the adsorption treatment step that sugar soln is contacted with the phenols polymeric adsorbent, with the ion exchange treatment step that sugar soln is contacted with ion exchange resin.
[0008] in the process for purification of described sugar soln, the ion exchange treatment step is preferably carried out after the adsorption treatment step.
[0009] the present invention also provides a kind of refining plant of sugar soln, and this device comprises the adsorption treatment equipment that sugar soln is contacted with the phenols polymeric adsorbent, with the ion exchange treatment equipment that sugar soln is contacted with ion exchange resin.
[0010] in addition, in the refining plant of described sugar soln, the ion exchange treatment evaluation method selecting optimal equipment provides in the downstream of adsorption treatment equipment.
[0011] in addition, in the process for purification or refining plant of above-mentioned sugar soln, sugar soln is preferably derived from the raw-material sugar soln of plant class.
[0012] in addition, in the process for purification or refining plant of above-mentioned sugar soln, sugar soln is sucrose solution preferably.
Brief Description Of Drawings
[0013] Fig. 1 is the schema that shows according to an example of sugar soln refining plant of the present invention.
Carry out best way of the present invention
[0014] provides the description of embodiment of the present invention below.In the adsorption treatment step of sugar soln process for purification and in adsorption treatment equipment, sugar soln is contacted with the phenols polymeric adsorbent according to the sugar soln refining plant of this embodiment.The phenols polymeric adsorbent is illustrated in the polymeric adsorbent that contains a plurality of phenol OH groups on the surface of porous aromatic(based)polymer, in the present embodiment, can use any polymeric adsorbent with this type structure.Because above structure, the phenols polymeric adsorbent shows below the combination of effect: by the physical adsorption effect that the porous aromatic(based)polymer provides, it is similar to the effect of gac, and the ion-exchange effect that is provided by phenol OH group.Under acidity or neutrallty condition, phenols polymeric adsorbent absorption malodor components and color body, and under alkaline condition, the essence of resin surface changes, resin discharges the material of any absorption.Therefore, sugar soln is typically contacted down at acidic conditions (pH=1-5) or neutrallty condition (pH=5-9) with the phenols polymeric adsorbent, when the adsorptive power of phenols polymeric adsorbent exhausts, stop the sugar soln incoming flow, use alkaline solution such as aqueous sodium hydroxide solution regeneration phenols polymeric adsorbent.The object lesson of suitable phenols polymeric adsorbent comprises the Co. by Ajinomoto-Fine-Techno, HS that Inc. makes and KS resin and the XAD761 that is made by Rohm and Haas Company.
[0015] in the ion exchange treatment step of sugar soln process for purification and in ion exchange treatment equipment, sugar soln is contacted with ion exchange resin according to the sugar soln refining plant of this embodiment.At sugar soln is under those situations of sucrose solution, and strongly basic anion exchange resin and weakly acidic cation-exchange resin can be used as this ion exchange resin, and the appropriate resin processing scheme comprises following those that enumerate in (a) to (c).
(a) scheme is wherein passed through strongly basic anion exchange resin in order with sugar soln, and weakly acidic cation-exchange resin.
(b) scheme, wherein with sugar soln by comprising the mixed bed of strongly basic anion exchange resin and weakly acidic cation-exchange resin.
(c) scheme is wherein passed through sugar soln in order strongly basic anion exchange resin and is comprised strongly basic anion exchange resin and the mixed bed of weakly acidic cation-exchange resin.
[0016] in these different plastic resin treatment schemes, scheme (c) preferably aspect the final quality of the solution of handling.In addition, be used for above scheme (b) and mixed bed (c), volume ratio between strongly basic anion exchange resin and weakly acidic cation-exchange resin is preferably 8: 1-1: 4, and according to the pH of the solution that breaks away from sub-speed and processing, 2: 1 volume ratio is particularly preferred.
[0017] above strongly basic anion exchange resin and weakly acidic cation-exchange resin can be can reach the disengaging son of sugar soln and do not cause any resin that sugar transforms.The object lesson of appropriate resin comprises strongly basic anion exchange resin such as Amberlite (registered trademark, this also is applicable to all resins subsequently) IRA-402BL, IRA-900, IRA-411S, and XT-5007, all make by Rohm and Haas Company, and Diaion (registered trademark, this also is applicable to all resins subsequently) PA-308 and PA-412, make by Mitsubishi Chemical Corporation, weakly acidic cation-exchange resin Amberlite IRC-76 and Amberlite IRC-50, and Diaion WK-11.
[0018] in the present embodiment, sugar soln at first can be contacted with the phenols polymeric adsorbent and contacts with ion exchange resin then, or can at first contact, contact with the phenols polymeric adsorbent then with ion exchange resin, but owing to the following describes, the former resin scheme preferably.That is, when sugar soln is at first contacted with the phenols polymeric adsorbent, depend on the method for the phenols polymeric adsorbent that is used to regenerate, wash-out goes out acid or alkali from the phenols polymeric adsorbent, and promptly the pH of sugar soln becomes acidity or alkalescence.With the advantage that sugar soln is contacted with ion exchange resin after the phenols polymeric adsorbent contacts be: owing to the pH that contacts the sugar soln that becomes acidity or alkalescence with the phenols polymeric adsorbent owing to turning back to basic neutral numerical value (pH=5.5-8.5) with contacting of ion exchange resin.In addition, because the phenols polymeric adsorbent shows the decolouring effect, reducing the load with latter stage ion exchange resin with sugar soln being contacted with the phenols polymeric adsorbent before ion exchange resin contacts, promptly the purification step with latter stage that is provided by the ion exchange resin sugar soln that can handle bigger quantity still keeps the quality of the sugar soln handled in high level of purity simultaneously.
[0019] in the present embodiment, typically be 20 ℃-80 ℃ in temperature with the sugar soln of phenols polymeric adsorbent and ion exchange resin period of contact, be preferably 30 ℃-70 ℃.If less than 20 ℃, then processing efficiency descends in the temperature of period of contact sugar soln, and if temperature surpasses 80 ℃, but phenols polymeric adsorbent and ion exchange resin deterioration, but or sugar soln self deterioration.
[0020] in addition, solution typically is SV0.25-SV10 by the flow of adsorption treatment equipment and ion exchange treatment equipment, and preferred SV2-SV8 is with respect to the quantity of phenols polymeric adsorbent.If solution flow is less than SV0.25, then processing efficiency can descend, and if flow surpasses SV10, then deodorizing, carrying out of decolouring and demineralization is unsatisfactory.Term SV represents with respect to the quantity of loading resin, passes through the quantity of the treatment soln of filling resin in 1 hour.
[0021] sugar soln that is used as processing target in the present embodiment can be above-mentioned sucrose solution, or any other sugar soln such as Dian Fentang solution or honey.The example that includes the sugar soln of malodor components comprises the sugar soln of the foul smelling component that contains plant derivation, as with the relevant beet smell of sucrose solution that forms from beet, with sugar soln from the relevant grain smell of the Dian Fentang solution of corn or potato formation.Under the situation of Dian Fentang solution, use the washing of experience raw sugar usually, dissolving, carbonic acid gas is saturated, and the refined sugar solution of filtration and decolouring step is as the sugar soln charging, although the present invention is not limited to such situation.
[0022] as mentioned above,, can remove the foul smelling component that comprises in the sugar soln effectively, therefore prevent that the foul smelling component from entering in the sugar soln of processing according to the present embodiment.
[0023] Fig. 1 is the schema of demonstration according to an example of the sugar soln refining plant of the present embodiment.In Fig. 1, numeral 10 expression phenols polymeric adsorbent containers (pH container), numeral 12 expression strongly basic anion exchange resin containers (A container), numeral 14 expressions comprise the mixed bed container (MB container) of strongly basic anion exchange resin and weakly acidic cation-exchange resin.In this example, phenols polymeric adsorbent container 10 constitutes the ion exchange treatment equipment that constitutes of adsorption treatment equipment and strongly basic anion exchange resin container 12 and mixed bed container 14.In the refining plant of this example, in order by phenols polymeric adsorbent container 10, therefore strongly basic anion exchange resin container 12 and mixed bed container 14 obtain there is not the malodorous sugar soln 18 made from extra care and handling with raw sugar solution 16.
Embodiment
[0024] uses a series of embodiment, below provide the description of particular case of the present invention.Yet the present invention is never by the following embodiment restriction that presents.
[0025] (embodiment: pH container → A container → MB container)
The test set that the preparation configuration is identical with the refining plant shown in Fig. 1.By adopting HS (100mL) as the phenols polymeric adsorbent (by Ajinomoto-Fine-Techno Co., Inc. manufacturing) load post and prepare the container (pH container) that the phenols polymeric adsorbent is loaded, prepare strongly basic anion exchange resin container (A container) by adopting Amberlite IRA402BL (50mL) as strongly basic anion exchange resin to load post, prepare mixed bed container (MB container) by adopting as the Amberlite IRA402BL (50mL) of strongly basic anion exchange resin and loading post as the mixture of the AmberliteIRC-76 (25mL) of weakly acidic cation-exchange resin.
[0026] under the condition of the solution flow that comprises 50 ℃ solution temperature and 400mL/hr, the 2800mL sucrose solution (raw sugar solution) that performance is as shown in table 1 is in order by the pH container, A container and MB container, the therefore sugar soln that obtains handling.In table 1, Bx represents the sugared concentration of Brix (Brix) (%).In addition, the numerical value of formula calculating shown below is used in color value (color value) expression.Use digital refractometer (RX-1000, by Atago Co., Ltd. makes) to measure the Brix sugar concentration of sugar soln, use spectrophotometer (U-3010, by Hitachi, Ltd. makes) to measure absorbancy.
[0027] color value=[(OD420nm-OD720nm) * 1000 * 100]/[Bx * sugar soln proportion (g/ml) * 5cm]
Bx: Brix sugar concentration (%)
OD420nm: the absorbancy under the 420nm wavelength (using the 5cm pond)
OD720nm: the absorbancy under the 720nm wavelength (using the 5cm pond)
[0028] table 1
Analysis project Raw sugar solution
Bx 56.2
pH 4.35
Specific conductivity (μ S/cm) 117.7
Total negatively charged ion (mgCaCO 3/L) 605
Total cation (mgCaCO 3/L) 595
Color value 12.5
[0029] (Comparative Examples 1:A container → MB container)
By remove phenols polymeric adsorbent container (pH container) from the refining plant that is used for embodiment, preparation only comprises the refining plant of strongly basic anion exchange resin container (A container) and mixed bed container (MB container).Under the condition of the solution flow that comprises 50 ℃ solution temperature and 400mL/hr, the 2800mL sucrose solution (raw sugar solution) that performance is as shown in table 1 is in order by A container and MB container, therefore the sugar soln that obtains handling.
[0030] (Comparative Examples 2:pH container)
By remove strongly basic anion exchange resin container (A container) and mixed bed container (MB container) from the refining plant that is used for embodiment, preparation only comprises the refining plant of phenols polymeric adsorbent container (pH container).Under the condition of the solution flow that comprises 50 ℃ solution temperature and 400mL/hr, the 2800mL sucrose solution (raw sugar solution) that performance is as shown in table 1 is by the pH container, therefore the sugar soln that obtains handling.
[0031] owing to causes that the essence of malodorous material is still not fully aware of, the stench of the sugar soln of the processing of using discussion group (estimate 5 men of each solution and 5 woman's discussion group and also sum up their comment) to estimate raw sugar solution and in embodiment and Comparative Examples, obtaining by the sensation evaluation to each solution according to 4 grades of specifications.The results are shown in following table 2.Results verification when wherein sugar soln being contacted with the phenols polymeric adsorbent, is removed the foul smelling component from sugar soln in embodiment and Comparative Examples 2.On the contrary, in Comparative Examples 1, wherein sugar soln is not contacted with the phenols polymeric adsorbent, almost do not remove any cacodorous component clearly from sugar soln.
[0032] table 2
Average ratings Sum up
Raw sugar solution 2.8 Can notice fetor
Embodiment 0.3 Attention is less than stench
Comparative Examples 1 2.1 Can notice stench
Comparative Examples 2 0.5 Attention is less than stench
Discussion group scale: 10 people
Estimate specification (4 grades of specifications)
+ 3: can notice fetor
+ 2: can notice stench
+ 1: can notice faint odour
0: note less than stench
[0033] in addition, the performance of the sugar soln of the processing that obtains in embodiment and Comparative Examples 1 and 2 sees Table 3.Bx and color value are also as defined above.
[0034] table 3
Analysis project Raw sugar solution Embodiment Comparative Examples 1 Comparative Examples 2
Bx 56.2 56.2 56.2 56.2
pH 4.35 8.14 7.96 4.40
Specific conductivity (μ S/cm) 117.7 0.83 0.72 118.9
Color value 12.5 2.1 2.7 3.9
[0035] is clear that with the color value of raw sugar solution from the result shown in the table 3 and compares, considerably reduced color value, show that the color body that comprises in the raw sugar solution is adsorbed by the phenols polymeric adsorbent from the treatment soln of Comparative Examples 2.In addition, compare with pH from the processing sugar soln of Comparative Examples 2, from the more approaching neutrality of pH of the processing sugar soln of embodiment, the surface contacts the close neutral value of the pH that causes sugar soln with ion exchange resin.Therefore, as mentioned above, should preferably sugar soln at first be contacted with the phenols polymeric adsorbent, contact with ion exchange resin subsequently.

Claims (6)

1. the process for purification of a sugar soln, comprise the adsorption treatment step that sugar soln is contacted with the phenols polymeric adsorbent, with the ion exchange treatment step that sugar soln is contacted with ion exchange resin after the adsorption treatment step, wherein the phenols polymeric adsorbent is the polymeric adsorbent that contains a plurality of phenol OH groups on the surface of porous aromatic(based)polymer.
2. according to the process for purification of the sugar soln of claim 1, wherein sugar soln is derived from the raw-material sugar soln of plant class.
3. according to the process for purification of the sugar soln of claim 1, wherein sugar soln is a sucrose solution.
4. the refining plant of a sugar soln, it comprises the adsorption treatment equipment that sugar soln is contacted with the phenols polymeric adsorbent, with the ion exchange treatment equipment that sugar soln is contacted with ion exchange resin that is positioned at the adsorption treatment device downstream, wherein the phenols polymeric adsorbent is the polymeric adsorbent that contains a plurality of phenol OH groups on the surface of porous aromatic(based)polymer.
5. according to the refining plant of the sugar soln of claim 4, wherein sugar soln is derived from the raw-material sugar soln of plant class.
6. according to the refining plant of the sugar soln of claim 4, wherein sugar soln is a sucrose solution.
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JP2006254794A (en) * 2005-03-17 2006-09-28 Japan Organo Co Ltd Method for regenerating phenolic absorbing resin in sugar solution refining system and sugar solution refining apparatus
GB2433518A (en) * 2005-12-21 2007-06-27 Danisco Process for the recovery of sucrose and non-sucrose materials

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CN1273610A (en) * 1997-06-02 2000-11-15 新技术推进中心“坎泰克” Method for producing sugar from sugar-containing raw materials
CN1390845A (en) * 2002-06-18 2003-01-15 山东西王集团有限公司 Ion exchange technology in preparing glucose

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CN1930307A (en) 2007-03-14
JPWO2005090612A1 (en) 2008-09-18

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