CN102180918A - Method for preparing tannic acid - Google Patents
Method for preparing tannic acid Download PDFInfo
- Publication number
- CN102180918A CN102180918A CN2011100670372A CN201110067037A CN102180918A CN 102180918 A CN102180918 A CN 102180918A CN 2011100670372 A CN2011100670372 A CN 2011100670372A CN 201110067037 A CN201110067037 A CN 201110067037A CN 102180918 A CN102180918 A CN 102180918A
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- CN
- China
- Prior art keywords
- nutgalls
- tannic acid
- turkey
- galls
- weibull
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention provides a method for preparing tannic acid. The method comprises the following steps of: screening nutgalls, removing impurities, crushing the nutgalls into granules of which the size is 1 to 4mm, and putting the nutgalls into an expanding machine to make the nutgalls with a compact structures instantly compressed by a high pressure in an expanding chamber and then suddenly decompressed so as to quickly gasify water in the nutgalls, wherein in the gasifying process, the compact structures of the nutgalls are damaged, and the nutgalls are turned into expanded materials in the puffy state; and putting the nutgalls into a diffuser, adding distilled water into the nutgalls in a mass ratio of 1:8, performing lixiviation at normal temperature for 2 hours, separating, and vaporizing and spray-drying to obtain the finished products of tannic acid. By the method for preparing the tannic acid, the product quality can be further improved and energy consumption can be further reduced, the content of tannic acid is more than or equal to 85 percent, and the consumption of raw coal is 3.5t/t.
Description
Technical field
The present invention relates to a kind of preparation method of organic compound, particularly a kind of preparation method of Weibull.
Background technology
At present, be with the Turkey-galls raw material through screening, cleaning remove impurity and after, it is broken pure that to become granularity be the particle of 1 ~ 4mm, through the circulated in countercurrent lixiviate mode of long-time and high-temperature, again by evaporate, drying obtains the Weibull finished product, its tannin acid content ≧ 81%.
Summary of the invention
The preparation method who the purpose of this invention is to provide a kind of Weibull by the improvement to former technology, adopts extruding puffing and the low temperature extractive technique production tannin acid product that is coupled fast, makes the better quality of Weibull, and content is higher.
For this reason, technical scheme of the present invention is: a kind of preparation method of Weibull, it is characterized in that: with the screening of Turkey-galls raw material process, after impurity is removed in cleaning, broken pure one-tenth granularity is the particle of 1 ~ 4mm, enter bulking machine then, make Turkey-galls moment in expanded storehouse of compact structure be subjected to high pressure effect and pressure release suddenly, thereby the moisture that contains in the Turkey-galls is vaporized rapidly, in the moisture vaporescence, destroy the Turkey-galls dense structure, become the expanded material of fluffy state, join then in the extraction unit, the mass ratio of pressing 1:8 adds distilled water, stirring and leaching was separated after 2 hours at normal temperatures, promptly got the Weibull finished product by evaporation and spraying drying then.
Beneficial effect: adopt this method to prepare Weibull, can further improve the quality of products and reduce energy consumption, its tannin acid content ≧ 85%, 3.5 tons/ton of former consumption of coals.
Embodiment
A kind of preparation method of Weibull, be through screening with the Turkey-galls raw material, after impurity is removed in cleaning, broken pure one-tenth granularity is the particle of 1 ~ 4mm, enter bulking machine then, make Turkey-galls moment in expanded storehouse of compact structure be subjected to high pressure effect and pressure release suddenly, thereby the moisture that contains in the Turkey-galls is vaporized rapidly, in the moisture vaporescence, destroy the Turkey-galls dense structure, become the expanded material of fluffy state, the expanded material of 100 grams that will measure then joins and joins then in the extraction unit, 800 gram distilled water are joined in the extraction unit, stirring and leaching was separated after 2 hours at normal temperatures, collect tannic acid solution, again by evaporation, spraying drying obtains the Weibull finished product, its tannin Han Liang ≧ 85%.
Claims (1)
1. the preparation method of a Weibull, it is characterized in that: with the screening of Turkey-galls raw material process, after impurity is removed in cleaning, broken pure one-tenth granularity is the particle of 1 ~ 4mm, enter bulking machine then, make Turkey-galls moment in expanded storehouse of compact structure be subjected to high pressure effect and pressure release suddenly, thereby the moisture that contains in the Turkey-galls is vaporized rapidly, in the moisture vaporescence, destroy the Turkey-galls dense structure, become the expanded material of fluffy state, join in the extraction unit then, the mass ratio of pressing 1:8 adds distilled water, and stirring and leaching was separated after 2 hours at normal temperatures, promptly gets the Weibull finished product by evaporation and spraying drying then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100670372A CN102180918A (en) | 2011-03-20 | 2011-03-20 | Method for preparing tannic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100670372A CN102180918A (en) | 2011-03-20 | 2011-03-20 | Method for preparing tannic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102180918A true CN102180918A (en) | 2011-09-14 |
Family
ID=44567230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100670372A Pending CN102180918A (en) | 2011-03-20 | 2011-03-20 | Method for preparing tannic acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102180918A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109320565A (en) * | 2018-11-14 | 2019-02-12 | 云南博泽林化工有限公司 | Deimpurity method is gone during a kind of medical tannic acid of extraction |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1686974A (en) * | 2005-04-13 | 2005-10-26 | 竹山林产化工实业有限公司 | Method for preparing tannin from Chinese gall |
| CN1706857A (en) * | 2005-05-09 | 2005-12-14 | 竹山林产化工实业有限公司 | Gallnut processing apparatus for producing tannic acid |
-
2011
- 2011-03-20 CN CN2011100670372A patent/CN102180918A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1686974A (en) * | 2005-04-13 | 2005-10-26 | 竹山林产化工实业有限公司 | Method for preparing tannin from Chinese gall |
| CN1706857A (en) * | 2005-05-09 | 2005-12-14 | 竹山林产化工实业有限公司 | Gallnut processing apparatus for producing tannic acid |
Non-Patent Citations (1)
| Title |
|---|
| M. V. LEKVEISHVILI,等: "Extraction Of Tannin From Gall Nuts In A Rotary Pulsating Apparatus", 《PHARMACEUTICAL CHEMISTRY JOURNAL》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109320565A (en) * | 2018-11-14 | 2019-02-12 | 云南博泽林化工有限公司 | Deimpurity method is gone during a kind of medical tannic acid of extraction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110914 |