CN1212272A - Process for extracting raw rubber from bark of eucommia - Google Patents
Process for extracting raw rubber from bark of eucommia Download PDFInfo
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- CN1212272A CN1212272A CN 98112220 CN98112220A CN1212272A CN 1212272 A CN1212272 A CN 1212272A CN 98112220 CN98112220 CN 98112220 CN 98112220 A CN98112220 A CN 98112220A CN 1212272 A CN1212272 A CN 1212272A
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Abstract
The technological process for extracting raw rubber from bark of eucommia ulmoides includes the following steps: using toluene as solvent instead of petroleum ether, using single kettle to extract once and cleansing twice, then making secondary extraction and twice cleansing; then using several kettles to extract once and cleansing twice, and making secondary extraction and twice cleansing. Said invention possesses the advantages of short rubber latex discharge time, saving energy source and good economic benefits.
Description
The present invention is a kind of extracting method of rubber, particularly a kind of processing method of extracting the thick glue of rubber from the bark of eucommia
It is 90101268.8 in the application number of application on March 15 nineteen ninety that Chinese patent literature on October 2nd, 1991 disclosed Institute of Chemistry, Academia Sinica, and name is called the patent application of " comprehensive extraction of gutta-percha ".This application disclosed method is: fermentation-boiling-fine laundering-drying-extract thick glue-purification with sherwood oil organic solvent extraction-desolvate.Its weak point is: need the spontaneous fermentation through 2-3 month early stage, through 2-3 hour boiling, the cycle was extremely long again, complex process, cumbersome.What the solvent extraction of this method was adopted is sherwood oil.
The purpose of art invention is to solve above-mentioned weak point of the prior art, and a kind of processing method of extracting the thick glue of rubber from the bark of eucommia is provided.
Technical solution of the present invention is:
One, the preparation before feeding intake
With the bark of eucommia or its leaf pulverizing, immersion, cleaning, drying and forewarm.With the thick knot of the bark of eucommia at the bottom of extracting still.
Two, feed intake
With preceding off-the-shelf in qualified particle (80 orders＜3%, 60 order＜5%) the input still in the back of pulverizing, sieve and take off flat.Manhole and thief hole in the sealing.The alleged solvent of the present invention is a toluene.
Three, extract
(1) single still operation
(1) solvent is sent into preheating can by pre-heat steam battalion, open steam preheating can is heated, make the temperature of still internal solvent reach 70 ℃ ± 5 ℃.
(2) extract first: the solvent that preheating is good is sent in the still, be good for 10 ± 6 centimetres to surpass the material face, once circulates in every 4-6 minute to stir, and extracts after 15-35 minute carrying glue entered and stores the glue jar.
(3) cleaning first after extracting first: after extracting first and glue being entered the glue hold tank, in still, add earlier the good solvent of preheating again, be advisable for 10 ± 6 centimetres to surpass the material face, and stir fast and clean, then this solvent is entered storage glue jar.
(4) clean the second time after extracting first: after cleaning first and cleaning solvent being entered the glue hold tank, in still, add earlier the good solvent of preheating again, be advisable for 10 ± 6 centimetres to surpass the material face, and stir fast and clean, then this solvent is also entered storage glue jar.
(5) extract for the second time: extracting first and after twice cleaning, add the good solvent of preheating again in still, be good for 10 ± 6 centimetres to surpass the material face, once circulates in every 4-6 minute to stir, and extracts after 15-35 minute carrying glue entered and stores the glue jar.
(6) cleaning first after extracting for the second time: after extracting for the second time and glue being entered the glue hold tank, in still, add earlier the good solvent of preheating again, be advisable for 10 ± 6 centimetres to surpass the material face, and stir fast and clean, then this solvent is entered storage glue jar.
(7) clean the second time after extracting for the second time: extract for the second time and after cleaning first, in still, add earlier the good solvent of preheating again, be advisable for 10 ± 6 centimetres to surpass the material face, and stir fast and clean, then this solvent is entered storage glue jar.This time cleaning is last cleaning, should the glue that clean out be drained only, in order to follow-up steaming slag as far as possible.
(2) many still operations (extracting the still operation more than 4)
In single still operation preheating, after the cleaning first after extracting first, extracting first, the scavenging solution second time during No. 1 still extracted first enters still No. 2, and as the extraction first of No. 2 stills, the glue after the extraction enters the glue storagetank.When No. 2 stills extracted first, No. 1 still carried out the 2nd time and extracts.The scavenging solution first that No. 1 still extracts for the second time enters the cleaning first that No. 2 stills extract first as No. 2 stills.Clean the second time that No. 1 still extracts for the second time, carries into No. 2 stills as cleaning the second time that No. 2 stills extract first.
Enter the method for No. 2 stills according to No. 1 still scavenging solution, the scavenging solution of No. 2 stills is entered still No. 3, No. 3 still enters still No. 4 ..., and the like, until the N still, the N still turns back to still again No. 1, according to extracting what of still, the circulation serialization is produced, in above-mentioned production process, if solvent-free source person all need add the good novel solvent of preheating.
Four, steam slag
Open earlier when the outer vapour that extracts the still interlayer is heated to 70 ℃-80 ℃ with slag and reduce outer steam, slowly add inner vapor, stirred once in later every 30-60 minute, until evaporate to dryness.Last filter residue gets final product.
The present invention has advantage compared to existing technology: the plastic emitting time is shorter, save energy, and energy-conservation labour saves time, and saves and has utilized valuable eucommia resource, and a large amount of outcast barks of eucommia and leaf thereof are turned waste into wealth, and promotes the well-being of mankind.Improved productivity, good in economic efficiency.
This figure is extraction of the present invention, clean synoptic diagram, and " I, II ... VI " wherein is operation still number, and " 1,2 " are respectively first, extract for the second time." (1), (2) " are respectively for the first time and clean, clean for the 2nd time.Still number for the technology of I is among the figure: the glue after extracting first and extract first after cleaning solvent enter storage glue jar, the 2nd cleaning solvent after extracting first enters the II still, as the solvent of extraction first of II still.Glue after extracting for the 2nd time enters storage glue jar, cleaning solvent first after extracting for the second time enters the II still, cleaning solvent first as the II still, the cleaning solvent second time after extracting for the second time enters the II still, extract back cleaning solvent for the second time first as the II still, and enter the III still, as the solvent of extraction first of III still, by that analogy, until the N still.The N still is returning still No. 1.
The present invention is described in further detail below in conjunction with accompanying drawing and embodiment:
One, the preparation before feeding intake
With the bark of eucommia or its leaf pulverizing, immersion, cleaning, drying and forewarm.With the thick knot of the bark of eucommia at the bottom of extracting still.
Two, feed intake
With preceding off-the-shelf in qualified particle (80 orders＜3%, 60 order＜5%) the input still in the back of pulverizing, sieve and take off flat.Manhole and thief hole in the sealing.The alleged solvent of the present invention is a toluene.
Three, extract
(1) single still operation
(1) solvent is sent into preheating can by the preheating vapour pipe, open steam preheating can is heated, make the temperature of still internal solvent reach 70 ℃ ± 5 ℃.
(2) extract first: the solvent that preheating is good is sent in the still, be good for 104 ± 6 centimetres to surpass the material face, once circulates in every 4-6 minute to stir, and extracts after 15-35 minute carrying glue entered and stores the glue jar.
(3) cleaning first after extracting first: after extracting first and glue being entered the glue hold tank, in still, add earlier the good solvent of preheating again, be advisable for 10 ± 6 centimetres to surpass the material face, and stir fast and clean, then this solvent is entered storage glue jar.
(4) clean the second time after extracting first: after cleaning first and cleaning solvent being entered the glue hold tank, in still, add earlier the good solvent of preheating again, be advisable for 10 ± 6 centimetres to surpass the material face, and stir fast and clean, then this solvent is also entered storage glue jar.
(5) extract for the second time: extracting first and after twice cleaning, add the good solvent of preheating again in still, be good for 10 ± 6 centimetres to surpass the material face, once circulates in every 4-6 minute to stir, and extracts after 15-35 minute carrying glue entered and stores the glue jar.
(6) cleaning first after extracting for the second time: after extracting for the second time and glue being entered the glue hold tank, in still, add earlier the good solvent of preheating again, be advisable for 10 ± 6 centimetres to surpass the material face, and stir fast and clean, then this solvent is entered storage glue jar.
(7) clean the second time after extracting for the second time: extract for the second time and after cleaning first, in still, add earlier the good solvent of preheating again, be advisable for 10 ± 6 centimetres to surpass the material face, and stir fast and clean, then this solvent is entered storage glue jar.This time cleaning is last cleaning, should the glue that clean out be drained only, in order to follow-up steaming slag as far as possible.
(2) many still operations (extracting the still operation more than 4)
In single still operation preheating, after the cleaning first after extracting first, extracting first, the scavenging solution second time during No. 1 still extracted first enters still No. 2, and as the extraction first of No. 2 stills, the glue after the extraction enters the glue storagetank.When No. 2 stills extracted first, No. 1 still carried out the 2nd time and extracts.The scavenging solution first that No. 1 still extracts for the second time enters the cleaning first that No. 2 stills extract first as No. 2 stills.Clean the second time that No. 1 still extracts for the second time, carries into No. 2 stills as cleaning the second time that No. 2 stills extract first.
Enter the method for No. 2 stills according to No. 1 still scavenging solution, the scavenging solution of No. 2 stills is entered still No. 3, No. 3 still enters still No. 4 ..., and the like, until the N still, the N still turns back to still again No. 1, according to extracting what of still, the circulation serialization is produced, in above-mentioned production process, if solvent-free source person all need add the good novel solvent of preheating.
Four, steam slag
Open earlier when the outer vapour that extracts the still interlayer is heated to 70 ℃-80 ℃ with slag and reduce outer steam, slowly add inner vapor, stirred once in later every 30-60 minute, until evaporate to dryness.Last filter residue gets final product.Can use for from the bark of eucommia, extracting the thick glue of rubber.
Claims (7)
1, a kind of processing method of extracting the thick glue of rubber from the bark of eucommia comprises extraction, it is characterized in that (1) preparation before feeding intake, and (2) feed intake, and extract (3), contains single still operation and the operation of many stills, (4) steaming slag, and alleged solvent is a toluene.
2, according to the processing method of from the bark of eucommia, extracting the thick glue of rubber described in the claim 1, the preparation before it is characterized in that feeding intake be with Du part or its leaf pulverize, soak, clean, oven dry and preheating, with the thick knot of the bark of eucommia at the bottom of the extraction still.
3, according to the processing method of from the bark of eucommia, extracting the thick glue of rubber described in the claim 1, it is characterized in that feeding intake be with preceding off-the-shelf after pulverizing, sieving qualified particle (80 orders＜3%, 60 orders＜5%) drop in the still, and take off flatly, sealing is manhole and thief hole up and down.
4,, it is characterized in that single still operation is according to the processing method of from Du's part, extracting the thick glue of rubber described in the claim 4:
(1) solvent is sent into preheating can by the preheating vapour pipe, open steam preheating can is heated, make the temperature of still internal solvent reach 70 ℃ ± 5 ℃.
(2) extract first: the solvent that preheating is good is sent in the still, be good to surpass material face 1O ± 6 centimetres, once circulates in every 4-6 minute to stir, and extracts after 15-35 minute carrying glue entered and stores the glue jar.
(3) cleaning first after extracting first: after extracting first and glue being entered the glue hold tank, in still, add earlier the good solvent of preheating again, be advisable for 10 ± 6 centimetres to surpass the material face, and stir fast and clean, then this solvent is entered storage glue jar.
(4) clean the second time after extracting first: after cleaning first and cleaning solvent being entered the glue hold tank, in still, add earlier the good solvent of preheating again, be advisable for 10 ± 6 centimetres to surpass the material face, and stir fast and clean, then this solvent is also entered storage glue jar.
(5) extract for the second time: extracting first and after twice cleaning, add the good solvent of preheating again in still, be good for 10 ± 6 centimetres to surpass the material face, once circulates in every 4-6 minute to stir, and extracts after 15-35 minute carrying glue entered and stores the glue jar.
(6) cleaning first after the extraction for the second time; After extracting for the second time and glue being entered the glue hold tank, in still, add earlier the good solvent of preheating again, be advisable for 10 ± 6 centimetres to surpass the material face, and stir fast and clean, then this solvent is entered storage glue jar.
(7) clean the second time after extracting for the second time: extract for the second time and after cleaning first, in still, add earlier the good solvent of preheating again, be advisable for 10 ± 6 centimetres to surpass the material face, and stir fast and clean, then this solvent is entered storage glue jar.This time cleaning is last cleaning, should the glue that clean out be drained only, in order to follow-up steaming slag as far as possible.
5, according to the processing method of from the bark of eucommia, extracting the thick glue of rubber described in the claim 4, it is characterized in that the operation of extraction still more than four of many still operations, promptly in single still operation preheating, after the cleaning first after extracting first, extracting first, the scavenging solution second time during No. 1 still extracted first enters still No. 2, as the extraction first of No. 2 stills, the glue after the extraction enters the glue storagetank.When No. 2 stills extracted first, No. 1 still carried out the 2nd time and extracts.The scavenging solution first that No. 1 still extracts for the second time enters the cleaning first that No. 2 stills extract first as No. 2 stills.Clean the second time that No. 1 still extracts for the second time, carry into No. 2 stills as cleaning the second time that No. 2 stills extract first,
Enter the method for No. 2 stills according to No. 1 still scavenging solution, the scavenging solution of No. 2 stills is entered still No. 3, No. 3 still enters still No. 4 ..., and the like, until the N still, the N still turns back to still again No. 1.
6, according to the processing method of from the bark of eucommia, extracting the thick glue of rubber described in the claim 1, it is characterized in that steaming glue is to open earlier to reduce outer steam when the outer vapour that extracts the still interlayer is heated to 70 ℃-80 ℃ with slag, slowly add inner vapor, stirred once in later every 30-60 minute, until evaporate to dryness, last filter residue gets final product.
7,, it is characterized in that in above-mentioned production process if solvent-free source person all need add the good novel solvent of preheating according to the processing method of from the bark of eucommia, extracting the thick glue of rubber described in the claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98112220 CN1212272A (en) | 1998-08-31 | 1998-08-31 | Process for extracting raw rubber from bark of eucommia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98112220 CN1212272A (en) | 1998-08-31 | 1998-08-31 | Process for extracting raw rubber from bark of eucommia |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1212272A true CN1212272A (en) | 1999-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98112220 Pending CN1212272A (en) | 1998-08-31 | 1998-08-31 | Process for extracting raw rubber from bark of eucommia |
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| CN (1) | CN1212272A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100457846C (en) * | 2006-11-08 | 2009-02-04 | 贵州大学 | Method of extracting gutta percha by solvent circulation |
| EP2258729A4 (en) * | 2008-03-14 | 2011-12-14 | Hitachi Shipbuilding Eng Co | Biopolymer originating in eucommia ulmoides |
| CN103087331A (en) * | 2013-01-25 | 2013-05-08 | 灵宝金地杜仲产业有限公司 | Process for extracting gutta-percha by natural fermentation method |
-
1998
- 1998-08-31 CN CN 98112220 patent/CN1212272A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100457846C (en) * | 2006-11-08 | 2009-02-04 | 贵州大学 | Method of extracting gutta percha by solvent circulation |
| EP2258729A4 (en) * | 2008-03-14 | 2011-12-14 | Hitachi Shipbuilding Eng Co | Biopolymer originating in eucommia ulmoides |
| CN103087331A (en) * | 2013-01-25 | 2013-05-08 | 灵宝金地杜仲产业有限公司 | Process for extracting gutta-percha by natural fermentation method |
| CN103087331B (en) * | 2013-01-25 | 2015-02-11 | 灵宝金地杜仲产业有限公司 | Process for extracting gutta-percha by natural fermentation method |
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