CN101319094A - Lac haematochrome extracting method - Google Patents
Lac haematochrome extracting method Download PDFInfo
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- CN101319094A CN101319094A CNA2008100677473A CN200810067747A CN101319094A CN 101319094 A CN101319094 A CN 101319094A CN A2008100677473 A CNA2008100677473 A CN A2008100677473A CN 200810067747 A CN200810067747 A CN 200810067747A CN 101319094 A CN101319094 A CN 101319094A
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Abstract
The invention relates to a method for extracting lac dye, comprising the following steps that: a step of smashing virgin rubber, during which the virgin rubber is washed and the color washing water is collected, the smashed lac particles are put inside a container and are washed by water and are stirred appropriately, the color washing water is collected for standby, the process is repeated for a plurality of times; a step of coarse filtration, during which the coarse filtration is performed on the color washing water and the colature is obtained; a step of ultrafiltration, during which the colature is sent to a ultrafiltration membrane component to be filtered and to remove suspended substances, bacteria and the like, protein and latex, etc., the ultrafiltrating solution is obtained; a step of nanofiltration, during which the ultrafiltrating solution is sent to a nanofiltration membrane component to be filtered and to remove inorganic salt and the like and glucide, etc., the nanofiltration solution is obtained; a step of hyperfiltration, during which the nanofiltration solution is sent to a hyperfiltration component to be filtered and condensed, the concentrated solution contains laccaic acid with high purity quotient, that is the lac dye; a step of post treatment, during which the obtained lac dye liquid is dried and milled so that the lac dye product is obtained. The method adopts the advanced ultrafiltration, nanofiltration, and reverse osmosis membrane separating techniques to extract the lac dye in a pure physical method. The yield is high, the cost is low, the environment is protected without pollution, and the product quality is high.
Description
Technical field
The present invention relates to a kind of lac manufacture field, relate in particular to lac haematochrome extracting method.
Background technology
The extracting method of traditional Lac dye adopts chemical process more, as the disclosed a kind of Technology that improves the Lac dye quality of disclosed Chinese invention patent application publication number CN1081192A on January 26th, 1994, it comprises: virgin rubber is broken into that pearl glue, pearl glue are washed Se Shui, collect look liquid and acidifying, crossed colour filter liquid, neutral color liquid, precipitation look calcium, cross process such as colour filter calcium, the crystallization of look calcium, washing, drying, pulverizing, finished product packing, it adds the stirring that an amount of water carried out pearl glue 15 minutes after virgin rubber is broken into pearl glue.Traditional this chemical process owing to use a large amount of chemical reagent, pollutes environment and pigment quality inevitably, and complex process, the production cost height.
Summary of the invention
Technical problem to be solved by this invention is: a kind of lac haematochrome extracting method is provided, and its technology is simple, and cost is low, and can effectively avoid the pollution to environment and pigment quality.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of lac haematochrome extracting method comprises the steps:
The virgin rubber fragmentation is broken into Sticklac the particle of certain particle size;
Washing is also collected and is washed Se Shui, the lac particle of fragmentation is put into container add water washing and agitation as appropriate, and it is standby that look water is washed in collection, and repeat this step several times;
Coarse filtration is carried out coarse filtration to the Se Shui that washes that collects, and abandons filter residue, gets coarse filtration liquid;
Ultrafiltration is sent coarse filtration liquid into hyperfiltration membrane assembly and is filtered to remove suspended substance, bacterium class, protein, latex etc., gets ultrafiltrated;
Nanofiltration is sent ultrafiltrated into nanofiltration membrane component and is filtered to remove inorganic salts, carbohydrate etc., gets nanofiltration liquid;
Reverse osmosis is delivered to the reverse osmosis membrane assembly filtering and concentrating with nanofiltration liquid, and concentrated solution contains highly purified laccaic acid, i.e. Lac dye;
Aftertreatment, it is levigate that the Lac dye liquid that obtains is carried out drying, promptly gets the Lac dye product.
The invention has the beneficial effects as follows: compare with existing method, the inventive method has been given up the chemical treatment method that easily pollutes, and adopt advanced in the world at present ultrafiltration, nanofiltration, reverse osmosis membrane separation technology to extract Lac dye with simple pure physics mode, not only yield height, cost are low, and it is environment friendly and pollution-free, the product quality height, the absorbancy parameter that embodies Lac dye purity is up to state standards, and reaches more than 0.65.The inventive method commercial application has a extensive future.
Description of drawings
Fig. 1 is the schematic flow sheet of lac haematochrome extracting method of the present invention.
The present invention is described in further detail below in conjunction with accompanying drawing.
Embodiment
As shown in Figure 1, the invention provides a kind of lac haematochrome extracting method, comprise the steps:
The virgin rubber fragmentation, it is particle about 2～6mm that Sticklac is become granularity with crusher in crushing;
Washing is also collected and is washed Se Shui, the lac particle of fragmentation is put into container add water washing and agitation as appropriate, the feed liquid mass ratio of lac particle and water is 1: 2-1: 10, wash temperature is 20-60 degree centigrade, washing time is 1-10 hour, it is standby that look water is washed in collection, and repeat described washing and collection is washed look water several times fully to extract the haematochrome in the lac particle, generally speaking, wash the basic stripping of haematochrome that can make in the lac particle through three times, the haematochrome that many again increase washing times obtain seldom considers with 3 times to be the best from the angle of extraction cost;
Coarse filtration is carried out coarse filtration to the Se Shui that washes that collects, and abandons filter residue, gets coarse filtration liquid;
Ultrafiltration is sent coarse filtration liquid into hyperfiltration membrane assembly and is filtered to remove impurity such as suspended substance, bacterium class, protein, latex, gets ultrafiltrated;
Nanofiltration is sent ultrafiltrated into nanofiltration membrane component and is filtered to remove impurity such as inorganic salts, carbohydrate, gets nanofiltration liquid;
Reverse osmosis is delivered to the reverse osmosis membrane assembly filtering and concentrating with nanofiltration liquid, and concentrated solution contains highly purified laccaic acid, i.e. Lac dye;
Aftertreatment, it is levigate that the Lac dye liquid that obtains is carried out drying, promptly obtains the Lac dye product.
Wherein, wash in the look water step in washing and collection, along with the feed liquid mass ratio increases, can make the Lac dye stripping must be many more, but described ratio greater than a certain value after, the quantitative changeization of the Lac dye of stripping is not clearly, considers that from the workload of subsequent technique and the equal angles that reduces production costs the feed liquid mass ratio of washing can not be too big.
The Lac dye stripping quantity increases with the increase of washing time, but that the long more impurity stripping of washing time comes is also many more, has strengthened the separating difficulty of subsequent technique, finally reduced the purity of Lac dye, and because the lengthening of time, also extend man-hour, so should take all factors into consideration washing time.
The Lac dye stripping quantity also increases with the rising of wash temperature, but the temperature height is behind certain value, sex change may take place and cause the Lac dye instability in Lac dye, and temperature other impurity such as protein when too high, polysaccharide, the solvability of lipid etc. also increases, and has strengthened the separating difficulty of subsequent technique, finally reduced the purity of Lac dye, so the too high extraction that is unfavorable for Lac dye of wash temperature.
The specification of the filter assemblies that is adopted in the treatment steps such as coarse filtration, ultrafiltration, nanofiltration and reverse osmosis there is no strict the qualification, can be selected according to output, raw material etc.
With several examples the inventive method is described specifically below:
Example 1
It is particle about 2mm that Sticklac is become granularity with crusher in crushing; The lac particle of fragmentation is put into container add water washing (agitation as appropriate) three times, the feed liquid mass ratio is 1: 2, and wash temperature is 20 degrees centigrade, and each washing time is 1 hour, and collecting first three time, to wash look water standby; The Se Shui that washes that collects is carried out coarse filtration, abandon filter residue, get coarse filtration liquid; Coarse filtration liquid is sent into hyperfiltration membrane assembly again filter, remove impurity such as suspended substance, bacterium class, protein, latex, get ultrafiltrated; Again ultrafiltrated is sent into nanofiltration membrane component and filtered, remove impurity such as inorganic salts, carbohydrate, get nanofiltration liquid; Again nanofiltration liquid is delivered to the reverse osmosis membrane assembly filtering and concentrating, concentrated solution contains highly purified laccaic acid, i.e. Lac dye; At last, it is levigate that the Lac dye liquid that obtains is carried out drying, promptly gets and make with extra care the Lac dye product.Its detection index is up to state standards and requires to see Table.
Example 2
It is particle about 3mm that Sticklac is become granularity with crusher in crushing; The lac particle of fragmentation is put into container add water washing (agitation as appropriate) three times, the feed liquid mass ratio is 1: 5, and wash temperature is 30 degrees centigrade, and each washing time is 5 hours, and collecting first three time, to wash look water standby; The Se Shui that washes that collects is carried out coarse filtration, abandon filter residue, get coarse filtration liquid; Coarse filtration liquid is sent into hyperfiltration membrane assembly again filter, remove impurity such as suspended substance, bacterium class, protein, latex, get ultrafiltrated; Again ultrafiltrated is sent into nanofiltration membrane component and filtered, remove impurity such as inorganic salts, carbohydrate, get nanofiltration liquid; Again nanofiltration liquid is delivered to the reverse osmosis membrane assembly filtering and concentrating, concentrated solution contains highly purified laccaic acid, i.e. Lac dye; At last, it is levigate that the Lac dye liquid that obtains is carried out drying, promptly gets and make with extra care the Lac dye product.Its detection index is up to state standards and requires to see Table.
Example 3
It is particle about 6mm that Sticklac is become granularity with crusher in crushing; The lac particle of fragmentation is put into container add water washing (agitation as appropriate) three times, the feed liquid mass ratio is 1: 10, and wash temperature is 60 degrees centigrade, and each washing time is 10 hours, and collecting first three time, to wash look water standby; The Se Shui that washes that collects is carried out coarse filtration, abandon filter residue, get coarse filtration liquid; Coarse filtration liquid is sent into hyperfiltration membrane assembly again filter, remove impurity such as suspended substance, bacterium class, protein, latex, get ultrafiltrated; Again ultrafiltrated is sent into nanofiltration membrane component and filtered, remove impurity such as inorganic salts, carbohydrate, get nanofiltration liquid; Again nanofiltration liquid is delivered to the reverse osmosis membrane assembly filtering and concentrating, concentrated solution contains highly purified laccaic acid, i.e. Lac dye; At last, it is levigate that the Lac dye liquid that obtains is carried out drying, promptly gets and make with extra care the Lac dye product.Its detection index is up to state standards and requires to see Table.
The Lac dye property research that extracts shows: light, temperature, oxygenant, reductive agent, sanitas, Na
+, K
+And Mg
2+Stability to Lac dye does not have influence substantially; At alkali, Fe
3+, Fe
2+, Cu
2+, Pb
2+And Al
3+The less stable of pigment in the solution.
Claims (5)
1, a kind of lac haematochrome extracting method is characterized in that, described method comprises the steps:
The virgin rubber fragmentation is broken into Sticklac the particle of certain particle size;
Washing is also collected and is washed Se Shui, the lac particle of fragmentation is put into container add water washing and agitation as appropriate, and it is standby that look water is washed in collection, and repeat this step several times;
Coarse filtration is carried out coarse filtration to the Se Shui that washes that collects, and abandons filter residue, gets coarse filtration liquid;
Ultrafiltration is sent coarse filtration liquid into hyperfiltration membrane assembly and is filtered to remove suspended substance, bacterium class, protein, latex etc., gets ultrafiltrated;
Nanofiltration is sent ultrafiltrated into nanofiltration membrane component and is filtered to remove inorganic salts, carbohydrate etc., gets nanofiltration liquid;
Reverse osmosis is delivered to the reverse osmosis membrane assembly filtering and concentrating with nanofiltration liquid, and concentrated solution contains highly purified laccaic acid, i.e. Lac dye;
Aftertreatment, it is levigate that the Lac dye liquid that obtains is carried out drying, promptly gets the Lac dye product.
2, lac haematochrome extracting method as claimed in claim 1 is characterized in that: washing is also collected and is washed in the look water step, and the feed liquid mass ratio of lac particle and water is 1: 2-1: 10, and wash temperature is 20-60 degree centigrade, each washing time is 1-10 hour.
3, lac haematochrome extracting method as claimed in claim 1 is characterized in that: adopt the crusher in crushing Sticklac, the lac grain graininess after the fragmentation is 2～6mm.
4, lac haematochrome extracting method as claimed in claim 1 is characterized in that: coarse filtration is to adopt filter cloth and whizzer to filter.
5, lac haematochrome extracting method as claimed in claim 1 is characterized in that: described washing and collection are washed look water step and are repeated 3 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100677473A CN101319094A (en) | 2008-06-16 | 2008-06-16 | Lac haematochrome extracting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100677473A CN101319094A (en) | 2008-06-16 | 2008-06-16 | Lac haematochrome extracting method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817993A (en) * | 2010-05-07 | 2010-09-01 | 烟台开发区绿源生物工程有限公司 | Method for extracting lac red pigment |
| CN103013156A (en) * | 2012-12-12 | 2013-04-03 | 中国林业科学研究院资源昆虫研究所 | Method for extracting laccaic acid |
| CN104231664A (en) * | 2014-09-03 | 2014-12-24 | 云南通海杨氏天然产物有限公司 | Production method of water-soluble lac red pigment |
-
2008
- 2008-06-16 CN CNA2008100677473A patent/CN101319094A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817993A (en) * | 2010-05-07 | 2010-09-01 | 烟台开发区绿源生物工程有限公司 | Method for extracting lac red pigment |
| CN101817993B (en) * | 2010-05-07 | 2013-04-10 | 烟台开发区绿源生物工程有限公司 | Method for extracting lac red pigment |
| CN103013156A (en) * | 2012-12-12 | 2013-04-03 | 中国林业科学研究院资源昆虫研究所 | Method for extracting laccaic acid |
| CN103013156B (en) * | 2012-12-12 | 2015-04-08 | 中国林业科学研究院资源昆虫研究所 | Method for extracting laccaic acid |
| CN104231664A (en) * | 2014-09-03 | 2014-12-24 | 云南通海杨氏天然产物有限公司 | Production method of water-soluble lac red pigment |
| CN104231664B (en) * | 2014-09-03 | 2016-08-24 | 云南通海杨氏天然产物有限公司 | A kind of production method of water solublity lac color |
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