CN103114156A - New sugaring and clarifying process of low-sulfur low-phosphorus sugarcane - Google Patents
New sugaring and clarifying process of low-sulfur low-phosphorus sugarcane Download PDFInfo
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- CN103114156A CN103114156A CN2013100525166A CN201310052516A CN103114156A CN 103114156 A CN103114156 A CN 103114156A CN 2013100525166 A CN2013100525166 A CN 2013100525166A CN 201310052516 A CN201310052516 A CN 201310052516A CN 103114156 A CN103114156 A CN 103114156A
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Abstract
The invention provides a new sugaring and clarifying process of low-sulfur low-phosphorus sugarcane. The process comprises the following steps of: respectively adding an inorganic salt decoloring agent, polyquaternium and a zinc dihydrogen phosphate coagulant into the mixed sugarcane juice, feeding the mixed juice into a sedimentation tank or a floatation tank to separate out clear juice and mud juice after performing primary heating, the neutralization by adding lime milk and secondary heating; and obtaining a finished product of sugar after the clear juice is evaporated, concentrated, sugar boiled, crystallized and purged. Compared with the existing phosphate-sulfite clarification method, the new sugaring and clarifying process of low-sulfur low-phosphorus sugarcane disclosed by the invention has the advantages of short process flow, low tone and good quality of the clear juice and good thermal stability, and is capable of saving the resources of lime, sulphur and phosphoric acid, shortening the process flow, improving the product quality and realizing the cleaned production by removing the sulphitation process and device.
Description
Technical field
The present invention relates to is the low-phosphorous new process for clarifying sugar produced from sugarcane of a kind of low-sulfur.
Background technology
China is main in the world sugar industry and consumption big country, has 21 provinces (autonomous region) to produce sucrose, and the sugar refinery over 90% adopts phosphoric acid-sulfitation process craft to produce sucrose, and carbonatation process explained hereafter sucrose is adopted in sugar refinery of less than 10%.Carbonatation process is produced the sucrose quality product and is better than sulfurous method, but production cost is high, and the pollution problem that the carbonic acid filter mud causes is difficult to solve, and causes carbon method technique to be difficult to promote.It is poorer than carbonatation process that sulfurous method is produced the quality of sucrose, and subject matter is colour and SO
2Content is higher, China from 2006 regulation one-level White Sugar Color lower than 150IU, SO
2Content is not higher than 30mg.kg
-1, therefore, sulfurous method is produced the sucrose quality and is faced with formidable challenges.Study new clarification process sugar industry is had considerable effect.
Traditional phosphoric acid-sulfurous method clarification process be with Cane Mixed Juice through pre-ash → once heating (55-65 ℃) → add phosphoric acid, logical sulfur dioxide gas → adding lime slurry neutralization separates with mud juice to pH=6.8-7.2 → second-heating (98-102 ℃) → settling bowl → clear juice → juice evaporates, obtains the product white sugar after concentrating, boil sugar, crystallization, purging clearly.The shortcoming of this clarification process depends on the decolorization of sulfurous gas, and when the sulfurous gas combustion instability, sugarcane press for extracting juice amount is unstable, and the sulfurous gas consumption is large, will have a strong impact on juice quality and White Sugar Quality clearly.Sometimes sulfur dioxide gas leaks and causes serious environmental pollution, and the harm workman is healthy.
Summary of the invention
The invention provides the low-phosphorous new process for clarifying sugar produced from sugarcane of a kind of low-sulfur, the comprising the following steps of this technique:
A. Cane Mixed Juice adds the pre-ash of milk of lime to arrive PH between 6.8-7.0;
B. add polyquaternium in Cane Mixed Juice;
C. Cane Mixed Juice once heats, and heating and temperature control is between 60-70 ℃;
D. add inorganic salt discoloring agent, biphosphate zinc coagulant respectively in Cane Mixed Juice again after the heating;
E. Cane Mixed Juice add lime slurry neutralization to PH between 6.8-8.0;
F. carry out second-heating, heating and temperature control is between 98-105 ℃ again;
G. Cane Mixed Juice adds polyacrylamide to enter settling bowl or air flotation pool is isolated juice and mud juice clearly, and mud juice filters through filter and obtains filtered juice, and clear juice merges filtered juice and obtains commerieal sugar through evaporating, concentrate, boil sugar, crystallization, purging;
Described Cane Mixed Juice sugar degree is at 15-17%;
Described inorganic salt discoloring agent is by one or both discoloring agents that form in heavy sulphur oxygen, sodium bisulfite, and consumption is 0.5-1.5kg/ ton sugarcane juice to the sugarcane ratio;
Described biphosphate zinc coagulant is the liquid or solid reagent that is obtained by phosphoric acid and zinc oxide reaction, or by the liquid reagent that the poly-silica reaction of phosphoric acid, zinc oxide, zinc sulfate and activation obtains, the sugarcane ratio is 0.1kg-0.5kg/ ton sugarcane juice;
Described lime milk concentration=3-6 degree Beaume.
Preferably, in above-mentioned steps C, a described Heating temperature is 65 ℃.
Preferably, in above-mentioned steps F, described second-heating temperature is 100 ℃.
Preferably, in above-mentioned steps E, described Cane Mixed Juice adds lime slurry neutralization to PH=7.5.
Preferably, in above-mentioned steps A, described Cane Mixed Juice adds the pre-ash of milk of lime to PH=6.9.
Preferably, in above-mentioned steps B, described polyquaternium is the positively charged ion polyquaternium, described sun
The ion polyquaternium is the Poly Dimethyl Diallyl Ammonium Chloride that obtained through polyreaction by dimethyldiallylammonchloride chloride monomer, acrylamide monomer or the multipolymer of two kinds of monomers, consumption to sugarcane than being 0.25-0.5kg/ ton sugarcane juice.
The ultimate principle of the low-phosphorous new process for clarifying sugar produced from sugarcane of this low-sulfur is to utilize polyquaternium, heavy sulphur oxygen or sodium bisulfite, biphosphate zinc coagulant to form the efficient decolorizing system to replace the gaseous sulfur dioxide realization to the decolouring of Cane Mixed Juice, with the pigment generation indissoluble salt precipitation in sugarcane.By biphosphate zinc coagulant and polyacrylamide, the organic non-sugar in Cane Mixed Juice and inorganic non-sugar being carried out effectively flocculation makes it to form the flocculation sediment face and removes.
This technique and traditional phosphoric acid-sulfurous acid fining process technique relatively, technical process is short, clear juice Heat stability is good, the colour inferior quality is good, reaches the quality of the clear juice of carbonatation process.This technique has been saved the stove drying Processes and apparatus, has saved lime, sulphur, phosphoric acid resource, has realized recycling economy and Sustainable development, has promoted economic benefit and social benefit.
Description of drawings
Fig. 1 is the low-phosphorous new process for clarifying sugar produced from sugarcane schema of settling process low-sulfur of the present invention;
Fig. 2 is the low-phosphorous new process for clarifying sugar produced from sugarcane schema of By Bubble-floating Method low-sulfur of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing, can implement according to this with reference to the specification sheets word to make those skilled in the art.
Fig. 1 can see, this technique forms decolouring clarification system by milk of lime, polyquaternium, inorganic salt discoloring agent, biphosphate zinc coagulant, polyacrylamide.At first the pre-ash of Cane Mixed Juice is arrived PH=6.0-7.0, then add polyquaternium, through once being heated to 60-70 ℃, then add the inorganic salt discoloring agent, then add the biphosphate zinc coagulant, arrive PH=6.8-8.0 with lime slurry neutralization, second-heating is to 98-105 ℃ again, adds at last polyacrylamide and enters the rapid subsidence pond or air flotation pool is isolated juice clearly, and mud juice filters through filter and obtains filtered juice.Clear juice merges filtered juice and obtain the product white sugar after evaporating, concentrate, boil sugar, crystallization, purging.Fig. 2 is except separating device adopts air flotation pool, and additive method is identical with Fig. 1.
Following embodiment illustrates the low-phosphorous new process for clarifying sugar produced from sugarcane of low-sulfur of the present invention.
Embodiment one:
Get Cane Mixed Juice 1000mL, add the pre-ash of milk of lime to pH=6.4, then add 1.0% Poly Dimethyl Diallyl Ammonium Chloride 5mL, after once being heated to 60-70 ℃, add heavy sulfur-oxygen solid 1.2g, add 10% biphosphate zinc coagulant 4mL, arrive pH=7.8 with lime slurry neutralization again, second-heating to 98-105 ℃, adds polyacrylamide 1.5mg at last again, pours in the 1000mL graduated cylinder and isolates juice clearly in 98-100 ℃ of constant temperature after standing 15 minutes.Clear juice simple purity difference by analysis improves 4.5 percentage points, percent of decolourization 78.5%, turbidity removal rate 99%.
Embodiment two:
Get Cane Mixed Juice 1000mL, add the pre-ash of milk of lime to pH=6.8, then add 1.0% Poly Dimethyl Diallyl Ammonium Chloride 7mL, after once being heated to 60-70 ℃, add sodium bisulfite solid 2.0g, add 10% biphosphate zinc coagulant 3mL, arrive pH=8 with lime slurry neutralization again, second-heating to 98-105 ℃, adds polyacrylamide 1.0mg at last again, pours in the 1000mL graduated cylinder and isolates juice clearly in 98-100 ℃ of constant temperature after standing 15 minutes.Clear juice simple purity difference by analysis improves 3 percentage points, percent of decolourization 80%, turbidity removal rate 98%.
Embodiment three:
Get Cane Mixed Juice 1000mL, add the pre-ash of milk of lime to pH=7.0, then add 1.0% Poly Dimethyl Diallyl Ammonium Chloride 4.5mL, after once being heated to 60-70 ℃, add heavy sulfur-oxygen solid 1.5g, add 10% biphosphate zinc coagulant 2mL, arrive pH=7.8 with lime slurry neutralization again, second-heating to 98-105 ℃, adds polyacrylamide 1.5mg at last again, pours in the 1000mL graduated cylinder and isolates juice clearly in 98-100 ℃ of constant temperature after standing 15 minutes.Clear juice simple purity difference by analysis improves 4.5 percentage points, percent of decolourization 85%, turbidity removal rate 99%.
Embodiment four:
Get Cane Mixed Juice 1000mL, add the pre-ash of milk of lime to pH=7.2, then add 1.0% Poly Dimethyl Diallyl Ammonium Chloride 8mL, after once being heated to 60-70 ℃, add heavy sulfur-oxygen solid 1.3g, add 10% biphosphate zinc coagulant 2mL, arrive pH=8 with lime slurry neutralization again, second-heating to 98-105 ℃, adds polyacrylamide 1.5mg at last again, pours in the 1000mL graduated cylinder and isolates juice clearly in 98-100 ℃ of constant temperature after standing 15 minutes.Clear juice simple purity difference by analysis improves 3.5 percentage points, percent of decolourization 80%, turbidity removal rate 98%.
Embodiment five:
Get No. 22 Cane Mixed Juice 1000mL of platform sugar, add the pre-ash of milk of lime to pH=7.2, then add 1.0% Poly Dimethyl Diallyl Ammonium Chloride 5mL, after once being heated to 60-70 ℃, add heavy sulfur-oxygen solid 1.5g, add 10% biphosphate zinc coagulant 2mL, arrive pH=7.8 with lime slurry neutralization again, second-heating to 98-105 ℃, adds polyacrylamide 1.5mg at last again, pours in the 1000mL graduated cylinder and isolates juice clearly in 98-100 ℃ of constant temperature after standing 15 minutes.Clear juice simple purity difference by analysis improves 4 percentage points, percent of decolourization 80%, turbidity removal rate 99.5%.
Embodiment six:
Get No. 22 Cane Mixed Juice 1000mL of platform sugar, add the pre-ash of milk of lime to pH=6.8, then add 1.0% Poly Dimethyl Diallyl Ammonium Chloride 5mL, after once being heated to 60-70 ℃, add sodium bisulfite solid 2.0g, add 10% biphosphate zinc coagulant 4mL, arrive pH=8 with lime slurry neutralization again, second-heating is to 98-105 ℃ again, add at last polyacrylamide 1.5mg, pour in the 1000mL graduated cylinder and isolate juice clearly in 98-100 ℃ of constant temperature after standing 15 minutes, clear juice simple purity difference by analysis improves 3 percentage points, percent of decolourization 80%, turbidity removal rate 98%.
Claims (6)
1. the low-phosphorous new process for clarifying sugar produced from sugarcane of low-sulfur, is characterized in that, the method comprises the following steps:
A. Cane Mixed Juice adds the pre-ash of milk of lime to arrive PH between 6.8-7.0;
B. add polyquaternium in Cane Mixed Juice;
C. Cane Mixed Juice once heats, and heating and temperature control is between 60-70 ℃;
D. add inorganic salt discoloring agent, biphosphate zinc coagulant respectively in Cane Mixed Juice again after the heating;
E. Cane Mixed Juice add lime slurry neutralization to PH between 6.8-8.0;
F. carry out second-heating, heating and temperature control is between 98-105 ℃ again;
G. Cane Mixed Juice adds polyacrylamide to enter settling bowl or air flotation pool is isolated juice and mud juice clearly, and mud juice filters through filter and obtains filtered juice, and clear juice merges filtered juice and obtains commerieal sugar through evaporating, concentrate, boil sugar, crystallization, purging;
Described Cane Mixed Juice sugar degree is at 15-17%;
Described inorganic salt discoloring agent is by one or both discoloring agents that form in heavy sulphur oxygen, sodium bisulfite, and consumption is 0.5-1.5kg/ ton sugarcane juice to the sugarcane ratio;
Described biphosphate zinc coagulant is the liquid or solid reagent that is obtained by phosphoric acid and zinc oxide reaction, or by the liquid reagent that the poly-silica reaction of phosphoric acid, zinc oxide, zinc sulfate and activation obtains, the sugarcane ratio is 0.1kg-0.5kg/ ton sugarcane juice;
Described lime milk concentration=3-6 degree Beaume.
2. the low-phosphorous new process for clarifying sugar produced from sugarcane of low-sulfur as claimed in claim 1, is characterized in that, in above-mentioned steps C, a described Heating temperature is 65 ℃.
3. the low-phosphorous new process for clarifying sugar produced from sugarcane of low-sulfur as claimed in claim 1, is characterized in that, in above-mentioned steps F, described second-heating temperature is 100 ℃.
4. the low-phosphorous new process for clarifying sugar produced from sugarcane of low-sulfur as claimed in claim 1, is characterized in that, in above-mentioned steps E, described Cane Mixed Juice adds lime slurry neutralization to PH=7.5.
5. the low-phosphorous new process for clarifying sugar produced from sugarcane of low-sulfur as claimed in claim 1, is characterized in that, in above-mentioned steps A, described Cane Mixed Juice adds the pre-ash of milk of lime to PH=6.9.
6. the low-phosphorous new process for clarifying sugar produced from sugarcane of low-sulfur as claimed in claim 1, it is characterized in that, in above-mentioned steps B, described polyquaternium is the positively charged ion polyquaternium, described positively charged ion polyquaternium is the Poly Dimethyl Diallyl Ammonium Chloride that obtained through polyreaction by dimethyldiallylammonchloride chloride monomer, acrylamide monomer or the multipolymer of two kinds of monomers, consumption to sugarcane than being 0.25-0.5kg/ ton sugarcane juice.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103981291A (en) * | 2014-05-19 | 2014-08-13 | 广西大学 | Cane sugar manufacture production system |
| CN104388600A (en) * | 2014-10-21 | 2015-03-04 | 南宁苏格尔科技有限公司 | Sugar manufacturing technique for improving yield and reducing color value of white sugar |
| CN104498638A (en) * | 2014-12-15 | 2015-04-08 | 广西科技大学 | Application of Zeta potential in clarification of quicklime-process sugar juice |
| CN106119427A (en) * | 2016-08-17 | 2016-11-16 | 施如涛 | A kind of decoloration process of brown sugar (Saccharum Sinensis Roxb.) remelt syrup |
| CN106319096A (en) * | 2016-08-17 | 2017-01-11 | 施如涛 | Clarifying method for redissolving brown granulated sugar with primary wash syrup |
| WO2017059559A1 (en) * | 2015-10-06 | 2017-04-13 | Rhodia Operations | Process for producing crystal or raw sugar from sugar cane juice |
| CN108396077A (en) * | 2018-04-27 | 2018-08-14 | 劳以添 | A kind of cane sugar manufacture is without the clear method of sulphur |
| CN108411043A (en) * | 2018-04-27 | 2018-08-17 | 劳以添 | Environment-friendly type is without the clear technique of the low-phosphorous cane sugar manufacture of sulphur |
| CN108424980A (en) * | 2018-04-27 | 2018-08-21 | 劳以添 | A kind of clear technique of low-phosphorous cane sugar manufacture of no sulphur |
| CN108588288A (en) * | 2018-04-27 | 2018-09-28 | 劳以添 | Used modified fiber ball handle without the clear technique of the low-phosphorous cane sugar manufacture of sulphur |
| CN109306381A (en) * | 2017-07-27 | 2019-02-05 | 广西科技大学 | A kind of efficient technology for clarifying syrup |
| CN110241267A (en) * | 2019-06-25 | 2019-09-17 | 广西浦北县湘桂糖业有限责任公司 | A kind of bioremediation of no sulphur cane juice clarification |
| CN111530123A (en) * | 2020-04-02 | 2020-08-14 | 湖南省核农学与航天育种研究所 | Method for decoloring and decontaminating tea seed meal leaching liquor |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103981291A (en) * | 2014-05-19 | 2014-08-13 | 广西大学 | Cane sugar manufacture production system |
| CN103981291B (en) * | 2014-05-19 | 2016-08-17 | 广西大学 | A kind of cane sugar manufacture production system |
| CN104388600A (en) * | 2014-10-21 | 2015-03-04 | 南宁苏格尔科技有限公司 | Sugar manufacturing technique for improving yield and reducing color value of white sugar |
| CN104388600B (en) * | 2014-10-21 | 2017-02-15 | 南宁苏格尔科技有限公司 | Sugar manufacturing technique for improving yield and reducing color value of white sugar |
| CN104498638A (en) * | 2014-12-15 | 2015-04-08 | 广西科技大学 | Application of Zeta potential in clarification of quicklime-process sugar juice |
| WO2017059559A1 (en) * | 2015-10-06 | 2017-04-13 | Rhodia Operations | Process for producing crystal or raw sugar from sugar cane juice |
| CN106119427A (en) * | 2016-08-17 | 2016-11-16 | 施如涛 | A kind of decoloration process of brown sugar (Saccharum Sinensis Roxb.) remelt syrup |
| CN106319096A (en) * | 2016-08-17 | 2017-01-11 | 施如涛 | Clarifying method for redissolving brown granulated sugar with primary wash syrup |
| CN109306381A (en) * | 2017-07-27 | 2019-02-05 | 广西科技大学 | A kind of efficient technology for clarifying syrup |
| CN109306381B (en) * | 2017-07-27 | 2021-04-23 | 广西科技大学 | Efficient sugar juice cleaning process |
| CN108411043A (en) * | 2018-04-27 | 2018-08-17 | 劳以添 | Environment-friendly type is without the clear technique of the low-phosphorous cane sugar manufacture of sulphur |
| CN108424980A (en) * | 2018-04-27 | 2018-08-21 | 劳以添 | A kind of clear technique of low-phosphorous cane sugar manufacture of no sulphur |
| CN108588288A (en) * | 2018-04-27 | 2018-09-28 | 劳以添 | Used modified fiber ball handle without the clear technique of the low-phosphorous cane sugar manufacture of sulphur |
| CN108396077A (en) * | 2018-04-27 | 2018-08-14 | 劳以添 | A kind of cane sugar manufacture is without the clear method of sulphur |
| CN110241267A (en) * | 2019-06-25 | 2019-09-17 | 广西浦北县湘桂糖业有限责任公司 | A kind of bioremediation of no sulphur cane juice clarification |
| CN111530123A (en) * | 2020-04-02 | 2020-08-14 | 湖南省核农学与航天育种研究所 | Method for decoloring and decontaminating tea seed meal leaching liquor |
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Address after: 538021 No. 4, Bailong Road, Fangcheng District, Fangchenggang City, Guangxi Zhuang Autonomous Region Patentee after: Guangxi sugar group Fangcheng refined sugar Co.,Ltd. Address before: 538021 No. 4, Bailong Road, Fangcheng Town, Fangcheng District, Fangchenggang City, Guangxi Zhuang Autonomous Region Patentee before: GUANGXI STATE FARMS SUGAR Group FANGCHENG REFINED SUGAR |