CN100491314C - Method of purifying immersed liquid in extraction process of algin, iodine and mannitol - Google Patents
Method of purifying immersed liquid in extraction process of algin, iodine and mannitol Download PDFInfo
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- CN100491314C CN100491314C CNB2006100463422A CN200610046342A CN100491314C CN 100491314 C CN100491314 C CN 100491314C CN B2006100463422 A CNB2006100463422 A CN B2006100463422A CN 200610046342 A CN200610046342 A CN 200610046342A CN 100491314 C CN100491314 C CN 100491314C
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Abstract
The invention discloses a new purifying method of immersing liquid in the extracting course of algin, iodine and mannitol, which is characterized by the following: adopting tap water to soak sea-tangle for many times; merging the soaking liquid; adding flocculant; removing carbohydrate gum; making the mannitol density in the soaked liquid of sea-tangle to 1. 9-2. 5%.
Description
Technical field
The present invention relates to the marine chemical industry field of engineering technology, specifically a kind of is raw material with the sea-tangle, extracts the purifying method of soak solution in algin, iodine, the N.F,USP MANNITOL process.
Background technology
Later 1950s, owing to propagate the development of sea-tangle cause artificially, the surge of sea-tangle output is except that edible, for industrial production algin, iodine and N.F,USP MANNITOL provide high quality raw material.In seaweed industry, mainly be from the sea-tangle algae-residue, to extract algin, from kelp-soaking liquid, extract iodine, N.F,USP MANNITOL, wherein, extracting N.F,USP MANNITOL from kelp-soaking liquid is one of China's seaweed industry traditionally strong event.In the coastal provinces and cities of China marine economy, occupy critical role.Yet, the kelp-soaking liquid complicated component, except containing the high inorganic electrolyte of concentration, organism and colloids such as a large amount of fucoidins, algin, laminarin, amino acid, pigment, tannin are still arranged, extract in the N.F,USP MANNITOL technological process in the sea-tangle comprehensive utilization, this class impurity is referred to as " carbohydrate gum ", and a large amount of existence of " carbohydrate gum " are given and to be carried iodine and purification N.F,USP MANNITOL technology is brought very burden and difficulty, have a strong impact on product yield and production cost.The way that traditional water recrystallization method can only lean on repeatedly centrifugal washing to get rid of " carbohydrate gum " is removed, and in the improved method of later stage, with acid, alkali number is big, poor processing effect, the kelp-soaking liquid pollution index FI value of handling is very big, and saltiness is big, for the extraction of later stage desalination and N.F,USP MANNITOL brings very big difficulty, both consume a large amount of energy, wasted resource again.
Summary of the invention
The object of the invention is to provide the purifying method of soak solution in a kind of extraction algin, iodine, N.F,USP MANNITOL process of easy and simple to handle, save energy.
For realizing goal of the invention of the present invention, the present invention by the following technical solutions:
Flocculation agent is joined in the soak solution, stir after 2-10 minute and flocculated static layering 10 minutes-8 hours; Then the soak solution with static layering separates, and supernatant liquor is the soak solution after the purification; Wherein: flocculation agent is chitosan or cm-chitosan.
Described soak solution is: kelp soaking cleans in tap water, and 2-3 back of repeated washing merges each soak solution, and wherein soak time is 4-12 hour; Wherein: the amount of the tap water of employing be the sea-tangle quality of being soaked 2-5 doubly.
When described flocculation agent is dissolved as the chitosan acid solution of concentration 1-3% with acid with it during for chitosan; When described cm-chitosan, it is dissolved as the carboxymethyl chitosan sugar acid solution of concentration 1-3% or the carboxymethyl chitosan sugar soln of concentration 1-3% with acid or distilled water; Wherein the add-on of flocculation agent is: add 1.5-6mL chitosan acid solution or carboxymethyl chitosan sugar acid solution or carboxymethyl chitosan sugar aqueous solution in every 100mL kelp-soaking liquid.
The acid of described employing is hydrochloric acid or the acetic acid of 1-5% for concentration.
The separation method of employing is filtration or centrifugal, adopts B when wherein filtering, and puts into non-woven fabrics in the described B, and evenly spreads diatomite thereon, and the diatomite top repaves non-woven fabrics; Centrifugation rate is 500-3000r/min when centrifugal, and centrifugation time is 1-10 minute.
The advantage that the present invention had is:
1. adopt purifying method of the present invention to reduce to usage quantity sour, alkali, and also minimizing in a large number of salts contg, the soak solution water quality after the present invention purifies is transparent, can prolong the life-span of ion-conductance dialysis demineralization plant simultaneously.
2. purifying method of the present invention is simple to operate, has got rid of repeatedly centrifugal washing in the existing production technique, and the operation of getting rid of " carbohydrate gum " has been avoided refining consume, saves energy consumption and production cost, reduces labor intensity, and improves production environment.
3. adopt after the purifying method of the present invention that mannitol concentration reaches 1.9-2.5% in the kelp-soaking liquid, make the yield of N.F,USP MANNITOL improve 27-35%.
Embodiment
Provided by the present invention is raw material with the sea-tangle, extracts the purifying method of soak solution in algin, iodine, the N.F,USP MANNITOL process, and this method also is applicable to similarly other chemical separation process, below by embodiment the present invention is described in further detail.
Embodiment 1
1) add tap water in the sea-tangle and soaked 4 hours, repeat 3 times, merge each soak solution, wherein: the amount that adds tap water is 2 times of sea-tangle quality.
2) get the soak solution that 150mL merges, to the chitosan salt acid solution that wherein adds 4mL 1%, stirred soak solution 2 minutes, flocculated 15 minutes, occur the cotton-shaped aggregate of white bulk when wherein stirring in the soak solution at once, aggregate is sunken to the bottom, and supernatant liquor is transparent.
Wherein: the chitosan acid solution is that employing concentration is 1% hydrochloric acid preparation.
3) adopt B to filter soak solution, floss reclaims and extracts algin; Wherein: put into the non-woven fabrics of suitable dimension in the B, evenly be tiled in diatomite on the non-woven fabrics after, above diatomaceous, repave a non-woven fabrics that size is suitable.
Mannitol concentration is 2.1% in the kelp-soaking liquid of mensuration filtration back, makes the yield of N.F,USP MANNITOL improve 30%.
Embodiment 2
1) add tap water in the sea-tangle and soaked 6 hours, repeat 3 times, merge each soak solution, wherein: the amount that adds tap water is 3 times of sea-tangle quality.
2) get the soak solution that 150mL merges, to the chitosan-acetic acid solution that wherein adds 3mL 2%, stirred soak solution 3 minutes, flocculated 4 hours, occur the cotton-shaped aggregate of white bulk when wherein stirring in the soak solution at once, aggregate is sunken to the bottom, and supernatant liquor is transparent.
Wherein: the chitosan acid solution is that employing concentration is 1% acetic acid preparation.
3) with the centrifugal soak solution of 1000 rev/mins speed, floss reclaims and extracts algin.
Mannitol concentration is 2.5% in the kelp-soaking liquid of mensuration filtration back, makes the yield of N.F,USP MANNITOL improve 35%.
Embodiment 3
1) add tap water in the sea-tangle and soaked 7 hours, repeat 2 times, merge each soak solution, wherein: the amount that adds tap water is 4 times of sea-tangle quality.
2) get the soak solution that 150mL merges,, stirred soak solution 4 minutes to the cm-chitosan acetum that wherein adds 2mL 3%, flocculated 8 hours, occur the cotton-shaped aggregate of white bulk when wherein stirring in the soak solution, aggregate is sunken to the bottom, and supernatant liquor is transparent at once.
Wherein: the carboxymethyl chitosan sugar acid solution is that employing concentration is 2% acetic acid preparation.
3) adopt B to filter soak solution, floss reclaims carries algin; Wherein: put into the non-woven fabrics of suitable dimension in the B, evenly be tiled in diatomite on the non-woven fabrics after, above diatomaceous, repave a non-woven fabrics that size is suitable.
Mannitol concentration is 1.9% in the kelp-soaking liquid of mensuration filtration back, makes the yield of N.F,USP MANNITOL improve 27%.
Embodiment 4
1) add tap water in the sea-tangle and soaked 8 hours, repeat 2 times, merge each soak solution, wherein: the amount that adds tap water is 3 times of sea-tangle quality.
2) get the soak solution that 150mL merges,, stirred soak solution 5 minutes to the chitosan-acetic acid solution that wherein adds 1.5mL 2%, flocculated 6 hours, and occurred the cotton-shaped aggregate of white bulk when wherein stirring in the soak solution at once, aggregate is sunken to the bottom, and supernatant liquor is transparent.
Wherein: the carboxymethyl chitosan sugar soln adopts the distilled water preparation.
3) with the centrifugal soak solution of 500 rev/mins speed 2 minutes, floss reclaims and extracts algin.
Mannitol concentration is 2.2% in the kelp-soaking liquid of mensuration filtration back, makes the yield of N.F,USP MANNITOL improve 30%.
Embodiment 5
1) add tap water in the sea-tangle and soaked 12 hours, repeat 3 times, merge each soak solution, wherein: the amount that adds tap water is 5 times of sea-tangle quality.
2) get the soak solution that 150mL merges, to the chitosan-acetic acid solution that wherein adds 6mL 2%, stirred soak solution 2 minutes, flocculated 5 hours, occur the cotton-shaped aggregate of white bulk when wherein stirring in the soak solution at once, aggregate is sunken to the bottom, and supernatant liquor is transparent.
Wherein: the chitosan acid solution is that employing concentration is 5% acetic acid preparation.
3) with the centrifugal soak solution of 3000 rev/mins speed 5 minutes, floss reclaims and extracts algin.
Mannitol concentration is 2.4% in the kelp-soaking liquid of mensuration filtration back, makes the yield of N.F,USP MANNITOL improve 32%.
Claims (3)
1. a purifying method of extracting soak solution in algin, iodine, the N.F,USP MANNITOL process is characterized in that: flocculation agent is joined in the soak solution, stir after 2-10 minute and flocculated static layering 10 minutes-8 hours; Then the soak solution with static layering separates, and supernatant liquor is the soak solution after the purification; Wherein: flocculation agent is chitosan or cm-chitosan;
Described soak solution is: kelp soaking cleans in tap water, and 2-3 back of repeated washing merges each soak solution, and wherein soak time is 4-12 hour; Wherein: the amount of the tap water of employing be the sea-tangle quality of being soaked 2-5 doubly.
2. the purifying method of soak solution in extraction algin according to claim 1, iodine, the N.F,USP MANNITOL process is characterized in that: when described flocculation agent is dissolved as the chitosan acid solution of concentration 1-3% with acid with it during for chitosan; When described flocculation agent is dissolved as the carboxymethyl chitosan sugar acid solution of concentration 1-3% or the carboxymethyl chitosan sugar aqueous solution of concentration 1-3% with acid or water with it during for cm-chitosan; The acid of described employing is hydrochloric acid or the acetic acid of 1-5% for concentration; Wherein the add-on of flocculation agent is: add 1.5-6mL chitosan acid solution or carboxymethyl chitosan sugar acid solution or carboxymethyl chitosan sugar aqueous solution in every 100mL soak solution.
3. the purifying method of soak solution in extraction algin according to claim 1, iodine, the N.F,USP MANNITOL process, it is characterized in that: the separation method of employing is filtration or centrifugal, adopt B when wherein filtering, put into non-woven fabrics in the described B, and evenly spread diatomite thereon, the diatomite top repaves non-woven fabrics; Centrifugation rate is 500-3000r/min when centrifugal, centrifugation time 1-10 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100463422A CN100491314C (en) | 2006-04-18 | 2006-04-18 | Method of purifying immersed liquid in extraction process of algin, iodine and mannitol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100463422A CN100491314C (en) | 2006-04-18 | 2006-04-18 | Method of purifying immersed liquid in extraction process of algin, iodine and mannitol |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101058530A CN101058530A (en) | 2007-10-24 |
| CN100491314C true CN100491314C (en) | 2009-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100463422A Expired - Fee Related CN100491314C (en) | 2006-04-18 | 2006-04-18 | Method of purifying immersed liquid in extraction process of algin, iodine and mannitol |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104495754B (en) * | 2014-11-28 | 2016-06-29 | 益盐堂（应城）健康盐制盐有限公司 | A kind of extracting method of Iodine |
| CN104557462B (en) * | 2014-12-17 | 2016-05-25 | 方萌 | A kind of extracting method of sweet mellow wine |
| CN113388567A (en) * | 2021-05-24 | 2021-09-14 | 青海珠峰冬虫夏草原料有限公司 | Method for improving quality of fermented cordyceps sinensis mycelia |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045959A (en) * | 1990-01-10 | 1990-10-10 | 国家海洋局杭州海水淡化和水处理技术开发中心 | The purifying method of kelp-soaking liquid |
| CN1099310A (en) * | 1994-07-01 | 1995-03-01 | 国家海洋局杭州水处理技术开发中心 | Improved method of purifying kelp-soaking liquid |
-
2006
- 2006-04-18 CN CNB2006100463422A patent/CN100491314C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045959A (en) * | 1990-01-10 | 1990-10-10 | 国家海洋局杭州海水淡化和水处理技术开发中心 | The purifying method of kelp-soaking liquid |
| CN1099310A (en) * | 1994-07-01 | 1995-03-01 | 国家海洋局杭州水处理技术开发中心 | Improved method of purifying kelp-soaking liquid |
Non-Patent Citations (1)
| Title |
|---|
| 海带藻渣处理中絮凝条件的研究. 陈悦等.青岛大学学报，第16卷第1期. 2003 * |
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