CN102516327A - Method for separating, enriching and producing nutgall tannic acid by using ultra-filtration membrane - Google Patents
Method for separating, enriching and producing nutgall tannic acid by using ultra-filtration membrane Download PDFInfo
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- CN102516327A CN102516327A CN2011104178673A CN201110417867A CN102516327A CN 102516327 A CN102516327 A CN 102516327A CN 2011104178673 A CN2011104178673 A CN 2011104178673A CN 201110417867 A CN201110417867 A CN 201110417867A CN 102516327 A CN102516327 A CN 102516327A
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- nutgall
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- filtration membrane
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- tannic acid
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The invention relates to a method for separating, enriching and producing nutgall tannic acid with an ultra-filtration membrane, which comprises the following steps of: adding a nutgall raw material into purified water to be subjected to extraction for 3-4 hours at a temperature of 32-35 DEG C, filtering, finely-filtering, separating by using an over-rolling type ultra-filtration membrane system, spraying and drying. The method has the beneficial effects that the speed of converting the nutgall tannic acid into gallic acid is controlled through low-temperature quick extraction; the concentration of the tannic acid in an extract is improved, the concentration time can reach 9-12 times, the content of the tannic acid reaches 81-89 percent, and the yield of a nutgall net material product is 22.4-26.6 percent; and moreover, the production process is energy-saving and environmentally-friendly, the production cost is greatly reduced, and the product quality stability is good.
Description
Technical field
The present invention relates to doubly spend with Turkey-galls is raw material, adopts the technology and method of ultra-filtration membrane separation and concentration manufacture Weibull.
Background technology
Utilization has the mould material of selective separation function, realizes separation, purifying and the spissated process of the different components of feed liquid being called membrane sepn through certain pressure.It is that with the different of traditional filtering film can separate in molecular range, and is a kind of physical process; The variation of phase need not take place and add auxiliary agent, energy consumption is low, and separation efficiency is high; Operational condition is gentle, and is particularly high to the low material enrichment thickening efficiency of feed liquid target component content.
Doubly flower is the lower a kind of Turkey-galls of tannin content, colonizes in the insect gall that yellow wood, the last compound leaf of Bin Yanfumushu top form by flower aphid doubly, and base portion is made the dendroid bifurcated, and generally branch is 3 times, and top surface has the papilla that differs in size.Be pistac when ripe, sunny slope is blushing.Times body is not of uniform size, is generally 180mm * 134mm.Bright times water ratio about 72%.In 9 months, explosion in the last ten-days period, explosion vent is on the branched top of the last time.The tannin content 31.6%～41.6% that commodity are doubly spent, far below the angle in the Turkey-galls doubly with tripe times; And during hydrolysis under the comparatively high temps Weibull very easily be converted into gallic acid, Weibull concentration 12～22mg/L in the vat liquor, gallic acid 4～9mg/L; Adopt hydrolysis-solvent extration to produce Weibull, raw material, solvent, energy consumption height, production cost is high, unstable product quality, resource utilization is low.
Summary of the invention
The object of the present invention is to provide a kind of ultra-filtration membrane separation and concentration to produce the method for Chinese gall Beihua tannin, it can effectively improve Weibull concentration in the vat liquor, the energy-saving production technology environmental protection, and production cost reduces greatly, and constant product quality property is good.
Embodiment of the present invention are: a kind of ultra-filtration membrane separation and concentration is produced the method for Chinese gall Beihua tannin, may further comprise the steps:
(1) raw material of doubly spending after the impurity elimination is dropped in the lixiviate jar, added times purified water extraction time 3～4 hours, the material water weight ratio is doubly to spend raw material: purified water=1:5～6,32～35 ℃ of extraction temperatures;
(2) vat liquor is crossed the filter of 400 mesh sieves, and filtrating is collected in the smart filter of 1～10 μ m micropore;
(3) the gained rolling ultrafiltration membrane system of filtrating is separated operating pressure 2.1MPa, mould material polyethersulfone, membrane module molecular weight cut-off 1000～3000;
(4) detect ultrafiltration and concentration liquid degree Beaume and reach 18～20, Weibull content reaches 80% when above, and spraying drying is received powder and packed, and gets product.
In the step (2), gained is considered slag add 4～5 times of purified water of worry slag weight, 32～35 ℃ of following secondary lixiviates 3～4 hours, cross the filter of 400 mesh sieves, smart filter, merging filtrate.
The present invention adopts the quick lixiviate control of low temperature Chinese gall Beihua tannin to transform gallic acid speed, improves Weibull concentration in the vat liquor; Use the Weibull in the ultra-filtration membrane separation and concentration concentrated filtrate on this basis, ultrafiltration and concentration liquid directly gets into spraying drying and processes product.Through check, employing should can reach 9～12 times by technology membrane sepn cycles of concentration, and Weibull content reaches 81～89%, doubly spends clean material product yield 22.4～26.6%, and product reaches technical grade and pharmaceutical grade Weibull standard.This technological method reduces that former technology concentrates, the cool a plurality of links such as clarification, SX, solvent recuperation of freezing, the energy-saving production technology environmental protection, and production cost reduces greatly, and constant product quality property is good.
Embodiment
Embodiment 1:
Remove and remove the clean material 300kg that doubly spends branch stalk impurity in the raw material, drop in the 2000L lixiviate jar, add purified water 1800L, reflux is controlled 32 ℃ of extraction temperatures, and extraction time 4 hours is crossed the filter of 400 mesh sieves, and 1566L must filtrate.Add 1200L purified water secondary lixiviate 3 hours, cross the filter of 400 mesh sieves, smart filter, 1232L must filtrate.Merge twice filtrating and pump into the filtration of filtering accuracy 1 μ m secondary filter, the rolling ultrafiltration membrane system ultrafiltration that gets into molecular weight cut-off 1000 again, operating pressure 1.8MPa.Get ultrafiltration and concentration liquid 213.2kg, 12.1 times of cycles of concentration, degree Beaume 18; The liquid concentrator spraying drying gets Weibull spray powder 67.2kg, clean raw produce yield 22.4%.Sample is pressed LY/T 1642-2005 Weibull analytical test method and is detected, and Weibull content 89.42% reaches medicinal Weibull LY/T 1640-2005 salable product standard.
Embodiment 2:
Get and doubly spend clean material 300kg, drop in the 2000L lixiviate jar, add purified water 1500L, reflux, 35 ℃ of control extraction temperatures, extraction time 3 hours is crossed the filter of 400 mesh sieves, and 1305L must filtrate.Add 1200L purified water secondary lixiviate 3 hours, cross the filter of 400 mesh sieves, smart filter, 1216L must filtrate.Merge twice filtrating and pump into the filtration of filtering accuracy 10 μ m secondary filters, the rolling ultrafiltration membrane system ultrafiltration that gets into molecular weight cut-off 3000 again, operating pressure 2.0MPa.Get ultrafiltration and concentration liquid 244.3kg, 9.3 times of cycles of concentration, degree Beaume 19; The liquid concentrator spraying drying gets Weibull spray powder 79.8kg, clean raw produce yield 26.6%.Sample is pressed LY/T 1642-2005 Weibull analytical test method and is detected, and Weibull content 82.27% reaches industrial tannic acid LY/T 1640-2005 acceptable end product standard.
Claims (2)
1. the method that the ultra-filtration membrane separation and concentration is produced Chinese gall Beihua tannin is characterized in that, may further comprise the steps:
(1) raw material of doubly spending after the impurity elimination is dropped in the lixiviate jar, added times purified water extraction time 3～4 hours, the material water weight ratio is doubly to spend raw material: purified water=1:5～6,32～35 ℃ of extraction temperatures;
(2) vat liquor is crossed the filter of 400 mesh sieves, and filtrating is collected in the smart filter of 1～10 μ m micropore;
(3) the gained rolling ultrafiltration membrane system of filtrating is separated operating pressure 2.1MPa, mould material polyethersulfone, membrane module molecular weight cut-off 1000～3000;
(4) detect ultrafiltration and concentration liquid degree Beaume and reach 18～20, Weibull content reaches 80% when above, and spraying drying is received powder and packed, and gets product.
2. ultra-filtration membrane separation and concentration according to claim 1 is produced the method for Chinese gall Beihua tannin, it is characterized in that, in the step (2); Gained is considered slag add 4～5 times of purified water of worry slag weight,, cross the filter of 400 mesh sieves 32～35 ℃ of following secondary lixiviates 3～4 hours; Smart filter, merging filtrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104178673A CN102516327A (en) | 2011-12-15 | 2011-12-15 | Method for separating, enriching and producing nutgall tannic acid by using ultra-filtration membrane |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104178673A CN102516327A (en) | 2011-12-15 | 2011-12-15 | Method for separating, enriching and producing nutgall tannic acid by using ultra-filtration membrane |
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| CN102516327A true CN102516327A (en) | 2012-06-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106542610A (en) * | 2016-09-23 | 2017-03-29 | 合肥信达膜科技有限公司 | A kind of tannic acid produces wastewater membrane processing equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102127125A (en) * | 2011-01-05 | 2011-07-20 | 中国林业科学研究院林产化学工业研究所 | Multielement combined purification preparation process of refined tannic acid serie and combined preparation of products |
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2011
- 2011-12-15 CN CN2011104178673A patent/CN102516327A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102127125A (en) * | 2011-01-05 | 2011-07-20 | 中国林业科学研究院林产化学工业研究所 | Multielement combined purification preparation process of refined tannic acid serie and combined preparation of products |
Non-Patent Citations (1)
| Title |
|---|
| 张太龙等: "膜分离技术制备高纯单宁酸的研究", 《生物质化学工程》, vol. 41, no. 4, 31 July 2007 (2007-07-31), pages 1 - 5 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106542610A (en) * | 2016-09-23 | 2017-03-29 | 合肥信达膜科技有限公司 | A kind of tannic acid produces wastewater membrane processing equipment |
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Application publication date: 20120627 |