CN103450287B - A kind of glucose mother liquid recycling technique - Google Patents
A kind of glucose mother liquid recycling technique Download PDFInfo
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- CN103450287B CN103450287B CN201310437597.1A CN201310437597A CN103450287B CN 103450287 B CN103450287 B CN 103450287B CN 201310437597 A CN201310437597 A CN 201310437597A CN 103450287 B CN103450287 B CN 103450287B
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Abstract
The invention discloses a kind of glucose mother liquid recycling technique, liquid glucose after purifying is successively through concentrated, primary crystallization, separation obtains glucose product, obtaining mother liquor purity after separation is 85%-87%, this concentration mother liquor is divided into two portions, a part carries out cooling recrystallization as raw material, the Glucose Liquid of purity >=98.5% is obtained after separation, the purity <75% of mother liquor after being separated, before another part returns primary crystallization, primary crystallization is carried out together with the liquid glucose after concentrated, so not only greatly reduce the quantity discharged of mother liquor, add the additional value of height of product, and improve crystalline dextrose yield.
Description
Technical field
The present invention relates to glucose production technical field, particularly relate to a kind of glucose mother liquid recycling technique.
Background technology
After Crystallization Separation glucose, being separated after product has two kinds: one to be crystalline product glucose; Two is glucose mother liquids, stays a large amount of mother liquors, and after its separating, washing, mother liquor purity is 85%-87%, and because this mother liquor dry concentration is low, very easily ferment, storage period is short, and commodity value is low, with cheap selling process; For this problem, need, to mother liquor recycling technical study, supply raw materials for refining glucose and greatly reduce the quantity discharged of mother liquor, reducing production run load, improving product yield.
Summary of the invention
Object of the present invention is exactly defect for above-mentioned existence and provides a kind of glucose mother liquid recycling technique, dissolves after carrying out recrystallize to low pure mother liquor, and the Glucose Liquid of purity >=98.5% may be used for producing in purifying high-purity DEXTROSE MONOHYDRATE BP crystallisation process.So not only greatly reduce the quantity discharged of mother liquor, add the additional value of height of product, and improve crystalline dextrose yield.
A kind of glucose mother liquid recycling process technology scheme of the present invention is, liquid glucose after refining obtains glucose product and mother liquor through concentrated, primary crystallization, separation successively, be separated the mother liquor part obtained and carry out cooling recrystallization, the Glucose Liquid of purity >=98.5% is obtained after being again separated, before another part returns enrichment step, carry out concentrating together with the liquid glucose after refining, primary crystallization.
Concrete steps are:
1. refine: Glucose Liquid enters ion-exchanger, carry out desalting treatment through ion exchange resin and obtain refining liquid glucose;
2. concentrate: refining liquid glucose concentrates through mechanical commprssor and liquefaction used heat evaporation unit;
3. primary crystallization: after concentrated, Glucose Liquid is in crystallizer, carries out decrease temperature crystalline, when crystallization yield reaches 55%, carries out next step;
4. be separated: crystallization liquid glucose enters separating machine and is separated, and crystallization Icing Sugar enters drying section production DEXTROSE MONOHYDRATE BP, purity >99.5%;
5. mother liquid disposal: 4. step is separated rear portion mother liquor and returns and be fitted on step and 2. carry out enrichment step together with Glucose Liquid, another part mother liquor carries out recrystallization, the sugar crystal that recrystallization obtains is separated again, then is separated after the Icing Sugar obtained dissolves, as the crystallization raw material of refining glucose.
1. step refines the specific conductivity≤50 μ s/cm of liquid glucose.
Sugar concentration after 2. step concentrates is 68-75%;
Step 3. decrease temperature crystalline adopts gradient cooling crystallization, each cooling 0.5-2 DEG C.
Obtaining mother liquor purity after 4. step is separated is 85%-87%.
Step is mother liquor purity≤75% that obtains of recrystallization 5., can carry out sale process.
5. step is separated Icing Sugar purity >=98.5% obtained again.
Beneficial effect of the present invention is: a kind of glucose mother liquid recycling technique of the present invention, dissolves after carrying out recrystallize to low pure mother liquor, and the Glucose Liquid of purity >=98.5% may be used for producing in purifying high-purity DEXTROSE MONOHYDRATE BP crystallisation process.So not only greatly reduce the quantity discharged of mother liquor, add the additional value of height of product, and improve crystalline dextrose yield.Concrete effect is as follows:
1. the quantity discharged of mother liquor reduces; Crystallization workshop section in dextrose production process, impurity is removed in crystallization, is the process of crystal with recombine between molecule, is also considered as the process of purifying.Utilized by the purification again of low pure mother liquor, thus greatly reduce the quantity discharged of crystalline mother solution.
2. the purity drop of mother liquor is to≤75%; For ensureing the top grade purity >99.5% of crystalline dextrose, thus raw sugar liquid purity >92% when determining crystallization, and the mother liquor purity >85% after the separation of its crystallised sugar.By applying after the purification again of mother liquor, ensure that the purity of mother liquor reduce to≤75%, thus decrease the quantity discharged of mother liquor.
3. for the production of refined sugar in crystals provides high purity raw liquid glucose; The mother liquor produced after being separated in top grade crystallised sugar production process, after purifying, the purity of its crystallised sugar is still very high, its content >=98.5% again, and after highly purified crystallized sugar dissolution like this, through practical proof, it can be used for producing refining DEXTROSE MONOHYDRATE BP.
4. improve crystallization yield, commodity yield improves 3%.By the conversion recrystallization of low dense mother liquor, greatly can improve the commodity yield of crystallised sugar, reduce mother liquor output.
5. the extraction and application again of mother liquor, this technique is extracted in refining glucose production from low pure mother liquor again: 1. for mother liquor: mother liquor per ton extracts and obtains crystallised sugar dry 500kg, be converted into refining glucose 400kg, refined sugar 4500 yuan/t, mother liquor create beneficial result per ton is: 4500 yuan/t × 0.4t=1800 unit.2. consider for commodity: the yield of commodity glucose: the sugared 50kg*4500 unit of 85%-90% → 1 ton of starch fecund=225 yuan; The quantity discharged of mother liquor: 18%-11% → 1 ton of starch mother liquor amount reduces 70kg*1200 unit=84 yuan.
Total income: ton starch 225-84=141 unit
Year starch producing 400,000 tons, then increase income beneficial volume: 5,640 ten thousand yuan.
accompanying drawing illustrates:
Figure 1 shows that present invention process schema.
embodiment:
In order to understand the present invention better, describe technical scheme of the present invention in detail with specific examples below, but the present invention is not limited thereto.
Embodiment 1
A kind of glucose mother liquid recycling technique concrete steps of the present invention are:
1. refine: Glucose Liquid enters ion-exchanger, carry out desalting treatment through ion exchange resin and obtain refining liquid glucose, specific conductivity 45 μ s/cm;
2. concentrate: refining liquid glucose concentrates through mechanical commprssor and liquefaction used heat evaporation unit, and after concentrated, sugar concentration is 73%;
3. primary crystallization: after concentrated, Glucose Liquid is in crystallizer, carries out gradient cooling crystallization, each cooling 1 DEG C, when crystallization yield reaches 55%, carries out next step;
4. be separated: crystallization liquid glucose enters separating machine and is separated, and crystallization Icing Sugar enters drying section production DEXTROSE MONOHYDRATE BP, purity >99.5%; Obtaining mother liquor purity after separation is 85.9%.
5. mother liquid disposal: 4. step is separated rear portion mother liquor and returns and be fitted on step and 2. carry out enrichment step together with Glucose Liquid, and another part mother liquor carries out recrystallization, the mother liquor purity 70% that recrystallization obtains, and can carry out sale process; The sugar crystal that recrystallization obtains is separated again, then is separated after the Icing Sugar obtained dissolves, and purity >=98.5%, as the crystallization raw material of refining glucose.
1. for mother liquor: mother liquor per ton extracts and obtains crystallised sugar dry 500kg, is converted into refining glucose 400kg, refined sugar 4500 yuan/t, and mother liquor create beneficial result per ton is: 4500 yuan/t × 0.4t=1800 unit.
2. consider for commodity: the yield of commodity glucose: the sugared 50kg*4500 unit of 85%-90% → 1 ton of starch fecund=225 yuan; The quantity discharged of mother liquor: 18%-11% → 1 ton of starch mother liquor amount reduces 70kg*1200 unit=84 yuan.
Total income: ton starch 225-84=141 unit
Year starch producing 400,000 tons, then increase income beneficial volume: 5,640 ten thousand yuan.
Embodiment 2
A kind of glucose mother liquid recycling technique concrete steps of the present invention are:
1. refine: Glucose Liquid enters ion-exchanger, carry out desalting treatment through ion exchange resin and obtain refining liquid glucose, specific conductivity 50 μ s/cm;
2. concentrate: refining liquid glucose concentrates through mechanical commprssor and liquefaction used heat evaporation unit, and after concentrated, sugar concentration is 68%;
3. primary crystallization: after concentrated, Glucose Liquid is in crystallizer, carries out gradient cooling crystallization, each cooling 0.5 DEG C, when crystallization yield reaches 55%, carries out next step;
4. be separated: crystallization liquid glucose enters separating machine and is separated, and crystallization Icing Sugar enters drying section production DEXTROSE MONOHYDRATE BP, purity >99.5%; Obtaining mother liquor purity after separation is 87%.
5. mother liquid disposal: 4. step is separated rear portion mother liquor and returns and be fitted on step and 2. carry out enrichment step together with Glucose Liquid, and another part mother liquor carries out recrystallization, the mother liquor purity 75% that recrystallization obtains, and can carry out sale process; The sugar crystal that recrystallization obtains is separated again, then is separated after the Icing Sugar obtained dissolves, and purity >=98.5%, as the crystallization raw material of refining glucose.
Consider for commodity: the yield of commodity glucose: the sugared 38kg*4500 unit of 1 ton of starch fecund=171 yuan; The quantity discharged of mother liquor: 1 ton of starch mother liquor amount reduces 60kg*1200 unit=72 yuan.
Total income: ton starch 171-72=99 unit
Year starch producing 400,000 tons, then increase income beneficial volume: 3,960 ten thousand yuan.
Embodiment 3
A kind of glucose mother liquid recycling technique concrete steps of the present invention are:
1. refine: Glucose Liquid enters ion-exchanger, carry out desalting treatment through ion exchange resin and obtain refining liquid glucose, specific conductivity 47 μ s/cm;
2. concentrate: refining liquid glucose concentrates through mechanical commprssor and liquefaction used heat evaporation unit, and after concentrated, sugar concentration is 75%;
3. primary crystallization: after concentrated, Glucose Liquid is in crystallizer, carries out gradient cooling crystallization, each cooling 2 DEG C, when crystallization yield reaches 55%, carries out next step;
4. be separated: crystallization liquid glucose enters separating machine and is separated, and crystallization Icing Sugar enters drying section production DEXTROSE MONOHYDRATE BP, purity >99.5%; Obtaining mother liquor purity after separation is 85%%.
5. mother liquid disposal: 4. step is separated rear portion mother liquor and returns and be fitted on step and 2. carry out enrichment step together with Glucose Liquid, and another part mother liquor carries out recrystallization, the mother liquor purity 72% that recrystallization obtains, and can carry out sale process; The sugar crystal that recrystallization obtains is separated again, then is separated after the Icing Sugar obtained dissolves, and purity >=98.5%, as the crystallization raw material of refining glucose.
Consider for commodity: the yield of commodity glucose: the sugared 48kg*4500 unit of 1 ton of starch fecund=216 yuan; The quantity discharged of mother liquor: 1 ton of starch mother liquor amount reduces 65kg*1200 unit=78 yuan.
Total income: ton starch 216-78=138 unit
Year starch producing 400,000 tons, then increase income beneficial volume: 5,520 ten thousand yuan.
Claims (1)
1. a glucose mother liquid recycling technique, the liquid glucose after refining obtains glucose product and mother liquor through concentrated, primary crystallization, separation successively, and it is characterized in that, concrete steps are:
1. refine: Glucose Liquid enters ion-exchanger, carry out desalting treatment through ion exchange resin and obtain refining liquid glucose;
2. concentrate: refining liquid glucose concentrates through mechanical commprssor and liquefaction used heat evaporation unit;
3. primary crystallization: after concentrated, Glucose Liquid is in crystallizer, carries out decrease temperature crystalline, when crystallization yield reaches 55%, carries out next step;
4. be separated: crystallization liquid glucose enters separating machine and is separated, and crystallization Icing Sugar enters drying section production DEXTROSE MONOHYDRATE BP, purity >99.5%;
5. mother liquid disposal: 4. step is separated rear portion mother liquor and returns and be fitted on step and 2. carry out enrichment step together with Glucose Liquid, another part mother liquor carries out recrystallization, crystallization yield is separated when reaching 55% again, then is separated after the Icing Sugar obtained dissolves, as the crystallization raw material of refining glucose;
1. step refines the specific conductivity≤50 μ s/cm of liquid glucose;
Sugar concentration after 2. step concentrates is 68-75%;
Step 3. decrease temperature crystalline adopts gradient cooling crystallization, each cooling 0.5-2 DEG C;
Obtaining mother liquor purity after 4. step is separated is 85%-87%;
Step is mother liquor purity≤75% that obtains of recrystallization 5.;
5. step is separated Icing Sugar purity >=98.5% obtained again.
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| CN104928405A (en) * | 2015-05-22 | 2015-09-23 | 山东祥瑞药业有限公司 | Technique for extracting glucose from starch saccharified liquid |
| CN212315566U (en) * | 2019-05-22 | 2021-01-08 | 索尔维公司 | Sodium sulfate recovery plant |
| CN112301068B (en) * | 2020-10-29 | 2022-10-04 | 齐齐哈尔龙江阜丰生物科技有限公司 | Hydrolysis comprehensive utilization process of glucose mother liquor |
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| DE1567348B2 (en) * | 1964-10-13 | 1976-10-14 | Nihon Shiryo Kogyo Co., Ltd., Tokushima (Japan) | PROCESS FOR MANUFACTURING A DEXTROSE PRODUCT FROM STARCH HYDROLYSATE |
| CN1715423A (en) * | 2005-07-01 | 2006-01-04 | 江南大学 | Method for extracting high purity glucose and functional oligose from crystalline glucose mother liquid |
| CN1880487A (en) * | 2005-06-13 | 2006-12-20 | 山东西王糖业有限公司 | Process for reclaiming and extracting crystalline dextrose by recrystallization of mother liquor |
| CN102061343A (en) * | 2010-11-14 | 2011-05-18 | 河南永昌飞天淀粉糖有限公司 | Novel process for purifying and recovering crystalline sugar mother liquor |
| CN102977156A (en) * | 2012-12-14 | 2013-03-20 | 山东西王糖业有限公司 | Method for processing glucose mother liquid by simulated moving bed |
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- 2013-09-24 CN CN201310437597.1A patent/CN103450287B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1567348B2 (en) * | 1964-10-13 | 1976-10-14 | Nihon Shiryo Kogyo Co., Ltd., Tokushima (Japan) | PROCESS FOR MANUFACTURING A DEXTROSE PRODUCT FROM STARCH HYDROLYSATE |
| CN1880487A (en) * | 2005-06-13 | 2006-12-20 | 山东西王糖业有限公司 | Process for reclaiming and extracting crystalline dextrose by recrystallization of mother liquor |
| CN1715423A (en) * | 2005-07-01 | 2006-01-04 | 江南大学 | Method for extracting high purity glucose and functional oligose from crystalline glucose mother liquid |
| CN102061343A (en) * | 2010-11-14 | 2011-05-18 | 河南永昌飞天淀粉糖有限公司 | Novel process for purifying and recovering crystalline sugar mother liquor |
| CN102977156A (en) * | 2012-12-14 | 2013-03-20 | 山东西王糖业有限公司 | Method for processing glucose mother liquid by simulated moving bed |
Non-Patent Citations (1)
| Title |
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| 熊万刚,等."结晶葡萄糖末次母液净化利用的工艺研究".《发酵科技通讯》.2013,第42卷(第1期),第17-19页. * |
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Inventor after: Zhou Xiuhua Inventor after: Guo Na Inventor after: Li Ning Inventor after: Ba Keke Inventor after: Zhang Bo Inventor before: Zhou Xiuhua Inventor before: Zhang Bo Inventor before: Ba Keke Inventor before: Ma Ke Inventor before: Han Zhijun |
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