CN109721483A - A kind of preparation method of citric acid - Google Patents
A kind of preparation method of citric acid Download PDFInfo
- Publication number
- CN109721483A CN109721483A CN201711029540.2A CN201711029540A CN109721483A CN 109721483 A CN109721483 A CN 109721483A CN 201711029540 A CN201711029540 A CN 201711029540A CN 109721483 A CN109721483 A CN 109721483A
- Authority
- CN
- China
- Prior art keywords
- citric acid
- preparation
- obtains
- thick
- filtering
- 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.)
- Pending
Links
Landscapes
- Coloring Foods And Improving Nutritive Qualities (AREA)
Abstract
The invention discloses a kind of preparation methods of citric acid of citric acid preparation field, comprising the following steps: (1), after fermenting raw materials suction filtration obtains filter residue and fermentation liquid；(2), it after the fermentation liquid neutralization reaction carries out that calcium citrate is obtained by filtration；(3), the calcium citrate obtains calcium sulfate and thick citric acid after carrying out acidolysis filtering；(4), the thick citric acid obtains mother liquor and crystallization after carrying out ion exchange, concentration and filtering；(5), the crystallization obtains finished lemon/lime acid after drying；By obtaining fermentation liquid after raw material is carried out fermentation suction filtration, fermentation liquid obtains calcium citrate after carrying out neutralization reaction filtering, and calcium citrate obtains thick citric acid after carrying out acidolysis filtering, and thick citric acid carries out ion exchange.It is crystallized after concentration and filtering, crystallization obtains finished lemon/lime acid after being dried, the quality of citric acid can be improved in this way, so that the purity of citric acid is more preferable, the present invention can be used among the preparation of citric acid.
Description
Technical field
The present invention relates to a kind of preparation method of compound, in particular to a kind of preparation method of citric acid.
Background technique
Citric acid is also known as Chinese holly edge acid, chemical name 2- hydroxy propane -1,2,3- tricarboxylic acids.According to the difference of its water content,
It is divided into Citric Acid Mono and anhydrous citric acid is a kind of important organic acid also known as citric acid, clear crystal, Chang Hanyi molecule knot
Brilliant water, it is odorless, there is very strong tart flavour, it is soluble easily in water.The purposes of citric acid is very extensive, accounts for output for food industry
75% or more, it can be used as the acid of food, antioxidant, pH adjusting agent, for the food such as cold drink, jam, fruit and cake
In product.10% or so is accounted for for medical industry, is mainly used as anticoagulant, antiacid, corrigent, cosmetics etc..For chemical work
Industry etc. accounts for 15% or so, is used as buffer, complexing agent, metal cleaner, mordant, gelling agent, toner etc..In electronics, spin
Knit, petroleum, leather, building, photography, plastics, have in the industrial circles such as casting and ceramics it is very wide.
Summary of the invention
The object of the present invention is to provide a kind of preparation methods of citric acid, by being sent out after raw material is carried out fermentation suction filtration
Zymotic fluid, fermentation liquid obtain calcium citrate after carrying out neutralization reaction filtering, and calcium citrate obtains thick citric acid after carrying out acidolysis filtering,
Thick citric acid carries out ion exchange.It is crystallized after concentration and filtering, crystallization obtains finished lemon/lime acid after being dried, in this way may be used
To improve the quality of citric acid, so that the purity of citric acid is more preferable.
, raw material to achieve the above object, the present invention provides a kind of preparation methods of citric acid, comprising the following steps: (1)
It is filtered after fermentation and obtains filter residue and fermentation liquid；(2), it after the fermentation liquid neutralization reaction carries out that calcium citrate is obtained by filtration；(3),
The calcium citrate obtains calcium sulfate and thick citric acid after carrying out acidolysis filtering；(4), the thick citric acid carry out ion exchange,
Mother liquor and crystallization are obtained after concentration and filtering；(5), the crystallization obtains finished lemon/lime acid after drying.
Compared with prior art, the beneficial effects of the present invention are after raw material is carried out fermentation suction filtration by being fermented
Liquid, fermentation liquid obtain calcium citrate after carrying out neutralization reaction filtering, and calcium citrate obtains thick citric acid after carrying out acidolysis filtering, slightly
Citric acid carries out ion exchange.It is crystallized after concentration and filtering, crystallization obtains finished lemon/lime acid after being dried, in this way can be with
The quality of citric acid is improved, so that the purity of citric acid is more preferable, the present invention can be used among the preparation of citric acid.
As a further improvement of the present invention, the raw material ferments again after boiling, can make in this way fermentation into
Journey is faster.
As a further improvement of the present invention, filter residue is used to Fodder making, can not result in waste of resources in this way, creates warp
Ji benefit.
As a further improvement of the present invention, acidolysis is carried out after the calcium citrate is washed, it in this way can be by citric acid
Impurity removal on calcium, so that the quality of citric acid is more preferable.
As a further improvement of the present invention, the thick citric acid carries out ion exchange after decoloration, can go in this way
Except the pigment of attachment, so that the purity of product is higher.
As a further improvement of the present invention, the calcium sulfate obtains pure calcium sulfate and washing lotion, institute after washing
It states washing lotion and carries out decolorization together with thick citric acid, can not cause to waste in this way, improve yield.
As a further improvement of the present invention, mother liquor re-starts acidolysis, can promote yield in this way, avoids mother liquor outlet
Pollute environment.
Detailed description of the invention
Fig. 1 is flow chart of the present invention.
Specific embodiment
The following further describes the present invention with reference to the drawings:
A kind of preparation method of citric acid as shown in Figure 1, comprising the following steps: (1), after fermenting raw materials filter obtain filter residue and
Fermentation liquid；(2), it carries out that calcium citrate is obtained by filtration after fermentation liquid neutralization reaction；(3), calcium citrate obtains after carrying out acidolysis filtering
To calcium sulfate and thick citric acid；(4), thick citric acid obtains mother liquor and crystallization after carrying out ion exchange, concentration and filtering；(5), it ties
Crystalline substance obtains finished lemon/lime acid after drying；Raw material ferments again after boiling；Filter residue is used to Fodder making；Calcium citrate is through washing
Acidolysis is carried out after washing；Thick citric acid carries out ion exchange after decoloration；Calcium sulfate obtains pure calcium sulfate after washing
And washing lotion, washing lotion carry out decolorization together with thick citric acid；Mother liquor re-starts acidolysis.
When work, raw material carries out boiling post-fermentation and filters to obtain filter residue and fermentation liquid, and feed is made in filter residue, and fermentation liquid carries out
Calcium citrate is obtained by filtration after neutralization reaction, carries out acidolysis after calcium citrate washing and thick citric acid and calcium sulfate is obtained by filtration, slightly
Citric acid carries out ion exchange after decoloration, thickening filtration obtains mother liquor and crystallization, and crystallization obtains finished product lemon after drying
Lemon acid.
The present invention is not limited to the above embodiment, on the basis of the technical solution of the disclosure, those skilled in the art
According to disclosed technology contents, some replacements can be made to some of which technical characteristic by not needing creative labor
And deformation, these replacements and deformation are within the scope of the invention.
Claims (7)
1. a kind of preparation method of citric acid, which comprises the following steps:
(1), it is filtered after fermenting raw materials and obtains filter residue and fermentation liquid；
(2), it after the fermentation liquid neutralization reaction carries out that calcium citrate is obtained by filtration；
(3), the calcium citrate obtains calcium sulfate and thick citric acid after carrying out acidolysis filtering；
(4), the thick citric acid obtains mother liquor and crystallization after carrying out ion exchange, concentration and filtering；
(5), the crystallization obtains finished lemon/lime acid after drying.
2. a kind of preparation method of citric acid according to claim 1, it is characterised in that: the raw material after boiling again
Fermentation.
3. a kind of preparation method of citric acid according to claim 1, it is characterised in that: filter residue is used to Fodder making.
4. a kind of preparation method for the citric acid stated according to claim 1, it is characterised in that: the calcium citrate is washed laggard
Row acidolysis.
5. a kind of preparation method of citric acid according to claim 1, it is characterised in that: the thick citric acid is by decoloration
After carry out ion exchange.
6. a kind of preparation method of citric acid according to claim 1 or 5, it is characterised in that: the calcium sulfate is by washing
Pure calcium sulfate and washing lotion are obtained after washing, the washing lotion carries out decolorization together with thick citric acid.
7. a kind of preparation method of citric acid according to claim 1, it is characterised in that: mother liquor re-starts acidolysis 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711029540.2A CN109721483A (en) | 2017-10-30 | 2017-10-30 | A kind of preparation method of citric acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711029540.2A CN109721483A (en) | 2017-10-30 | 2017-10-30 | A kind of preparation method of citric acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109721483A true CN109721483A (en) | 2019-05-07 |
Family
ID=66292278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711029540.2A Pending CN109721483A (en) | 2017-10-30 | 2017-10-30 | A kind of preparation method of citric acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109721483A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110282648A (en) * | 2019-05-24 | 2019-09-27 | 江苏一夫科技股份有限公司 | A kind of synthetic method of citric acid gypsum |
| CN112294907A (en) * | 2020-10-27 | 2021-02-02 | 青岛翼科新程生物科技有限公司 | Chlorine dioxide nano-zinc disinfection and bacteriostasis wash-free gel |
| CN112457183A (en) * | 2020-11-24 | 2021-03-09 | 南通市飞宇食品科技有限公司 | High-purity zinc citrate trihydrate for oral cavity antiallergic and preparation method thereof |
| CN114717009A (en) * | 2022-04-29 | 2022-07-08 | 湖州中恒园林建设有限公司 | Organic acid sustained-release preparation for improving saline-alkali soil and preparation method thereof |
-
2017
- 2017-10-30 CN CN201711029540.2A patent/CN109721483A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110282648A (en) * | 2019-05-24 | 2019-09-27 | 江苏一夫科技股份有限公司 | A kind of synthetic method of citric acid gypsum |
| CN112294907A (en) * | 2020-10-27 | 2021-02-02 | 青岛翼科新程生物科技有限公司 | Chlorine dioxide nano-zinc disinfection and bacteriostasis wash-free gel |
| CN112457183A (en) * | 2020-11-24 | 2021-03-09 | 南通市飞宇食品科技有限公司 | High-purity zinc citrate trihydrate for oral cavity antiallergic and preparation method thereof |
| CN114717009A (en) * | 2022-04-29 | 2022-07-08 | 湖州中恒园林建设有限公司 | Organic acid sustained-release preparation for improving saline-alkali soil and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109721483A (en) | A kind of preparation method of citric acid | |
| CN102268327B (en) | Method for orange peel essential oil and pectin combined production | |
| CN103804172B (en) | A kind of method improving organic acid production quality | |
| TWI630241B (en) | Modulation method of phycocyanin | |
| CN106831894B (en) | A kind of method of deacetylation Coupling Adsorption separation D-Glucosamine Hydrochloride | |
| CN108017535A (en) | A kind of method that long-chain biatomic acid is extracted from zymotic fluid | |
| CN105602793A (en) | Preparation method of osmanthus wine | |
| CN105829356A (en) | Process for extraction of calcium sensitive pectin | |
| CN102168002B (en) | Wine-making process | |
| CN104513154B (en) | A kind of production method of calcium citrate salts | |
| CN102603814B (en) | Method for increasing crystalizing efficiency of xylose in xylose mother solution | |
| CN104610385B (en) | A kind of process for purification of aminoglucose hydrochloride | |
| CN111892498A (en) | Method for extracting L-malic acid | |
| CN103275151A (en) | Refining method of erythromycin thiocyanate | |
| CN106350419B (en) | Utilize the method for the wine brewing yellow water production compound Wine blending liquid of lactic acid | |
| CN104086396A (en) | Shell-source citric acid complexed calcium product and preparation method | |
| CN103951553A (en) | Calcium malate prepared by adopting abalone shell as raw material and preparation method of calcium malate | |
| CN104529751B (en) | Preparing method of crystal L-calcium lactate | |
| CN103787870B (en) | A kind of minimizing technology of Trisodium Citrate readily carbonizable substance | |
| CN106554977A (en) | A kind of threonine production technology | |
| CN203884607U (en) | Honey refining system | |
| CN103012506A (en) | Energy-saving process for extracting crystallized xylose and arabinose from xylose mother liquor | |
| CN102887824A (en) | Method for preparing high-purity calcium gluconate by taking oyster shells as raw materials | |
| CN112047833A (en) | Preparation method of citric acid | |
| CN101538591A (en) | Method for preparing gluconic acid from mother liquor of xylose crystalline liquid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190507 |
|
| WD01 | Invention patent application deemed withdrawn after publication |