CN107434763A - A kind of preparation method of potassium acetate - Google Patents
A kind of preparation method of potassium acetate Download PDFInfo
- Publication number
- CN107434763A CN107434763A CN201610350586.3A CN201610350586A CN107434763A CN 107434763 A CN107434763 A CN 107434763A CN 201610350586 A CN201610350586 A CN 201610350586A CN 107434763 A CN107434763 A CN 107434763A
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- China
- Prior art keywords
- potassium acetate
- acetic acid
- glacial acetic
- preparation
- added
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/41—Preparation of salts of carboxylic acids
- C07C51/412—Preparation of salts of carboxylic acids by conversion of the acids, their salts, esters or anhydrides with the same carboxylic acid part
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a kind of preparation method of potassium acetate, comprise the following steps：（1）Potassium hydroxide is added under stirring into water, after all dissolving, glacial acetic acid is added dropwise while stirring, control adds the speed of glacial acetic acid, added in 0.5 1 hours, controls the temperature of reaction solution to be less than 90 DEG C（Prevent bumping）Stir simultaneously.PH value is monitored at any time, and until pH value should be between 8.4~8.8, cooling water is closed.（2）Medical charcoal is added, is sufficiently stirred 5 10 minutes, stands 30 minutes.Medical charcoal is crossed with 0.45 μm of filter（3）Spray drying, 190~230 DEG C of EAT of control, 90~140 DEG C of leaving air temp produce potassium acetate finished product；The preparation method of the potassium acetate of the present invention shortens the reaction time, reduces the expense of raw material, utilization rate of equipment and installations is improved, and good product quality, content can reach more than 99.5%.
Description
Technical field
The present invention relates to a kind of preparation method of organic salt, and in particular to a kind of preparation method of potassium acetate.
Background technology
Potassium is mended for electrolyte.
Liquor kalii acetici be it is a kind of the reaction of poly- chlorinated isocyanurates formed to isocyanate trimerization have the catalyst of catalytic effect,
It is used in conjunction with other catalyst, various hard bubble cast and spraying coating process can be met, has the characteristics that foaming is fast, gel is fast；
Potassium acetate powder is mainly used in the production of potassium salt of penicillin, as chemical reagent；Anti-icing material is also acted as, substitutes chlorination
The chloride of calcium and magnesium chloride etc.Its corrosion function and corrosivity to soil is smaller, and be particularly suitable for use in airfield runway deicing,
But price is costly.Food additives（Anti-corrosion and Controlled acidity）.The component of fire extinguisher.In ethanol precipitation DNA.For
Preserve, fixed biological tissue, be used in conjunction with formaldehyde.By potassium hydroxide or potassium carbonate with acetic acid acid-base neutralization reaction can occur for potassium acetate
Prepare.
The content of the invention
It is an object of the invention to provide a kind of preparation method of potassium acetate, shortens the reaction time, improves product quality.
To achieve the above object, following technical scheme of the present invention：A kind of preparation method of potassium acetate, it is characterised in that bag
Include following steps：（1）Potassium hydroxide is added under stirring into water, after all dissolving, glacial acetic acid is added dropwise while stirring, control adds
Enter the speed of glacial acetic acid, 0.5-1 is added in hour, controls the temperature of reaction solution to be less than 90 DEG C（Prevent bumping）Stir simultaneously.With
When monitor pH value, until pH value should between 8.4~8.8, cooling water close.（2）Medical charcoal is added, is sufficiently stirred 5-10 points
Clock, stand 30 minutes.Medical charcoal is crossed with 0.45 μm of filter（3）190~230 DEG C of spray drying control system EAT, go out wind-warm syndrome
90~140 DEG C of degree produces potassium acetate finished product.
The mass ratio of the glacial acetic acid and water is 1：1.25.
The mass ratio of the glacial acetic acid and potassium hydroxide is 1：0.94.
The glacial acetic acid is 1 with medical charcoal mass ratio：0.0023.
The step（1）The addition speed of middle control glacial acetic acid, 0.5-1 are added in hour.
The step（1）Middle pH value should be controlled between 8.4~8.8.
The step（3）Middle 190~230 DEG C of spray drying control system EAT, 90~140 DEG C of leaving air temp produce acetic acid
Potassium finished product.
Comprise the following steps：（1）Potassium hydroxide is added under stirring into water, after all dissolving, ice is added dropwise while stirring
Acetic acid, control add the speed of glacial acetic acid, and 0.5-1 is added in hour, control the temperature of reaction solution to be less than 90 DEG C（Prevent bumping）
Stir simultaneously.PH value is monitored at any time, and until pH value should be between 8.4~8.8, cooling water is closed.（2）Medical charcoal is added, fully
5-10 minutes are stirred, stand 30 minutes.Medical charcoal is crossed with 0.45 μm of filter（3）Spray drying control system EAT 190~230
DEG C, 90~140 DEG C of leaving air temp produce potassium acetate finished product.
It is as follows using the preparation method of the potassium acetate of the present invention, reaction equation：
CH3COOH + KOH→CH3COOK + H2O
The reaction time is shortened, is carried significantly as reactant using glacial acetic acid and potassium hydroxide during potassium acetate is synthesized
The high product quality of potassium acetate, for the content of potassium acetate more than 99.5%, capacity utilization is high.The system of the potassium acetate of the present invention
Preparation Method shortens the reaction time, reduces the expense of raw material, and utilization rate of equipment and installations is improved, good product quality, content
It can reach more than 99.5%.
Embodiment
Embodiment 1：The preparation method of potassium acetate as described in the present invention, comprises the following steps：（1）Added into reaction bulb
Purified water 75ml, lower addition potassium hydroxide 56g is stirred, after all dissolving, 60g glacial acetic acid, control addition are added dropwise while stirring
The speed of glacial acetic acid, 0.5-1 are added in hour, control the temperature of reaction solution to be less than 90 DEG C（Prevent bumping）Stir simultaneously.At any time
PH value is monitored, until pH value should be between 8.4~8.8, cooling water is closed.（2）Neutralization reaction adds medical charcoal 3g after terminating, and fills
Divide stirring 5-10 minutes, stand 30 minutes.Medical charcoal is crossed with 0.45 μm of filter（3）Spray drying, control EAT 190~
230 DEG C, 90~140 DEG C of leaving air temp produce potassium acetate finished product 70g, the content 99.5% of potassium acetate after measured, product quality is closed
Lattice.
Embodiment 2：The preparation method of potassium acetate as described in the present invention, comprises the following steps：（1）Added into reaction bulb
Purified water 60ml, lower addition potassium hydroxide 50g is stirred, after all dissolving, 60g glacial acetic acid, control addition are added dropwise while stirring
The speed of glacial acetic acid, 0.5-1 are added in hour, control the temperature of reaction solution to be less than 90 DEG C（Prevent bumping）Stir simultaneously.At any time
PH value is monitored, until pH value should be between 8.4~8.8, cooling water is closed.（2）Neutralization reaction adds medical charcoal 1.5g after terminating,
5-10 minutes are sufficiently stirred, stand 30 minutes.Medical charcoal is crossed with 0.45 μm of filter（3）Spray drying, control EAT 190
~230 DEG C, 90~140 DEG C of leaving air temp produce potassium acetate finished product 70g, the content 99.5% of potassium acetate after measured, product quality is closed
Lattice.
Embodiment 3：The preparation method of potassium acetate as described in the present invention, comprises the following steps：（1）Added into reaction bulb
Purified water 110ml, lower addition potassium hydroxide 62g is stirred, after all dissolving, 60g glacial acetic acid, control addition are added dropwise while stirring
The speed of glacial acetic acid, 0.5-1 are added in hour, control the temperature of reaction solution to be less than 90 DEG C（Prevent bumping）Stir simultaneously.At any time
PH value is monitored, until pH value should be between 8.4~8.8, cooling water is closed.（2）Neutralization reaction adds medical charcoal 6g after terminating, and fills
Divide stirring 5-10 minutes, stand 30 minutes.Medical charcoal is crossed with 0.45 μm of filter（3）Spray drying, control EAT 190~
230 DEG C, 90~140 DEG C of leaving air temp produce potassium acetate finished product 70g, the content 99.5% of potassium acetate after measured, product quality is closed
Lattice.
Claims (8)
1. a kind of preparation method of potassium acetate, it is characterised in that comprise the following steps：（1）Hydroxide is added under stirring into water
Potassium, after all dissolving, glacial acetic acid is added dropwise while stirring, control adds the speed of glacial acetic acid, and 0.5-1 is added in hour, controls
The temperature of reaction solution is less than 90 DEG C（Prevent bumping）Stir simultaneously, monitor pH value at any time, until pH value should between 8.4~8.8,
Cooling water is closed；（2）Medical charcoal is added, is sufficiently stirred 5-10 minutes, 30 minutes is stood, medical charcoal is crossed with 0.45 μm of filter；
（3）190~230 DEG C of spray drying control system EAT, 90~140 DEG C of leaving air temp produce potassium acetate finished product.
2. the preparation method of potassium acetate as claimed in claim 1, it is characterised in that：The mass ratio of the glacial acetic acid and water is 1：
1.25。
3. the preparation method of potassium acetate as claimed in claim 1, it is characterised in that：The quality of the glacial acetic acid and potassium hydroxide
Than for 1：0.94.
4. the preparation method of potassium acetate as claimed in claim 1, it is characterised in that：The glacial acetic acid is with medical charcoal mass ratio
1：0.0023.
5. the preparation method of potassium acetate as claimed in claim 1, it is characterised in that：The step（1）Middle control glacial acetic acid
Speed is added, 0.5-1 is added in hour.
6. the preparation method of potassium acetate as claimed in claim 1, it is characterised in that：The step（1）Middle pH value should control
Between 8.4~8.8.
7. the preparation method of potassium acetate as claimed in claim 1, it is characterised in that：The step（3）Middle spray drying control system
190~230 DEG C of EAT, 90~140 DEG C of leaving air temp produce potassium acetate finished product.
8. the preparation method of potassium acetate as claimed in claim 1, it is characterised in that comprise the following steps：（1）To water under stirring
Middle addition potassium hydroxide, after all dissolving, glacial acetic acid is added dropwise while stirring, control adds the speed of glacial acetic acid, 0.5-1 hours
Inside add, control the temperature of reaction solution to be less than 90 DEG C（Prevent bumping）Stir simultaneously, monitor pH value at any time, until pH value should be
Between 8.4~8.8, cooling water is closed；（2）Medical charcoal is added, is sufficiently stirred 5-10 minutes, 30 minutes are stood, with 0.45 μm of mistake
Filter crosses medical charcoal；（3）190~230 DEG C of spray drying control system EAT, 90~140 DEG C of leaving air temp produce potassium acetate into
Product, each raw material dosage ratio are：Glacial acetic acid is 1 with medical charcoal mass ratio：0.0023, the mass ratio of glacial acetic acid and potassium hydroxide is 1：
0.94, the mass ratio of glacial acetic acid and water is 1：1.25.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610350586.3A CN107434763A (en) | 2016-05-25 | 2016-05-25 | A kind of preparation method of potassium acetate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610350586.3A CN107434763A (en) | 2016-05-25 | 2016-05-25 | A kind of preparation method of potassium acetate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107434763A true CN107434763A (en) | 2017-12-05 |
Family
ID=60453853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610350586.3A Pending CN107434763A (en) | 2016-05-25 | 2016-05-25 | A kind of preparation method of potassium acetate |
Country Status (1)
| Country | Link |
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| CN (1) | CN107434763A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1694568A1 (en) * | 1990-01-09 | 1991-11-30 | Предприятие П/Я А-3481 | Method of producing potassium acetate |
-
2016
- 2016-05-25 CN CN201610350586.3A patent/CN107434763A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1694568A1 (en) * | 1990-01-09 | 1991-11-30 | Предприятие П/Я А-3481 | Method of producing potassium acetate |
Non-Patent Citations (1)
| Title |
|---|
| 刘广文: "《喷雾干燥使用技术大全》", 31 December 2001, 中国轻工业出版社 * |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171205 |
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