CN107417512A - A kind of method of one-step synthesis sodium acetate - Google Patents
A kind of method of one-step synthesis sodium acetate Download PDFInfo
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- CN107417512A CN107417512A CN201710463396.7A CN201710463396A CN107417512A CN 107417512 A CN107417512 A CN 107417512A CN 201710463396 A CN201710463396 A CN 201710463396A CN 107417512 A CN107417512 A CN 107417512A
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- Prior art keywords
- reaction
- sodium acetate
- speed
- acetic acid
- sodium carbonate
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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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a kind of method of one-step synthesis sodium acetate.Methods described stirs acetic acid with 50~100r/min speed first, is slowly added to powdered sodium carbonate, 60~80 DEG C are warming up to after addition, it is in sticky paste to continue stirring to material, adjustment mixing speed is 200~300r/min, and reaction dries product after terminating, and produces sodium acetate.The present invention makes the material of reaction become paste by the way that acetic acid and powdered sodium carbonate are carried out into high-speed stirred mixing, reduces moisture during reaction, reaction need not carry out concentration after terminating, and compared to traditional handicraft energy-conservation more than 82%, synthesis reduces cost more than 20%.
Description
Technical field
The invention belongs to food processing technology field, is related to a kind of method of one-step synthesis sodium acetate.
Background technology
Anhydrous sodium acetate is white powder, in organic synthesis esterifying agent, various chemical products is produced, such as furans propylene
Acid, acetate and monoxone etc., and the field such as dyestuff and pharmaceuticals industry are widely used.The work of production sodium acetate traditional at present
Skill is that carrier dissolves sodium carbonate liquor mainly using water, adds in acetic acid and sodium carbonate liquor, finally filters, concentrate, dries
Obtain finished product.Due to the presence of substantial amounts of water, concentration drying course power consumption is high, and generation mother liquor is more, and environmental pollution is big.
The content of the invention
For existing process concentration drying course high energy consumption, more than mother liquor and the problem of environmental pollution is big, the invention provides
A kind of method of one-step synthesis sodium acetate.
Technical scheme is as follows：
A kind of method of one-step synthesis sodium acetate, is comprised the following steps that：
Acetic acid is stirred with 50~100r/min speed, is slowly added to powdered sodium carbonate, addition finishes, and is warming up to 60~80
DEG C, it is in sticky paste to continue stirring to material, and adjustment mixing speed is 200~300r/min, and after reacting 5~6h, pH is surveyed in sampling
Value, if pH value, between 8.0~10.0, reaction finishes, reaction dries product after terminating, and produces sodium acetate.
Compared with prior art, the present invention makes reaction by the way that acetic acid and powdered sodium carbonate are carried out into high-speed stirred mixing
Material becomes paste, reduces moisture during reaction, reaction need not carry out concentration after terminating, compared to traditional handicraft energy-conservation 82%
More than, synthesis reduces cost 20%.
Embodiment
With reference to embodiment, the invention will be further described.
Embodiment 1
Acetic acid 1000g is drawn into mixing apparatus.Stirring is opened, rotating speed is controlled in 60r/min, is slowly added into sodium carbonate
Powder 885.9g, mixing apparatus heat up 60 DEG C.Material slowly becomes paste dope, and 300r/min is adjusted on speed of agitator.Add
Finish, insulation reaction 5.5h.1g samples are taken, are dissolved with 20mL carbon dioxide-free waters, it is 8.13 to measure pH, and reaction finishes.
Product is directly dried at 150 DEG C, finished product is obtained, content 98.64%, complies fully with Standard.Wherein drying energy consumption is
28.11 kilograms of standard coals/ton product.
Embodiment 2
By acetic acid 200g, mixing apparatus is drawn into.Speed of agitator control is opened in 100r/min.Weigh powdered sodium carbonate
177.18g it is slowly added into powdered sodium carbonate.Mixing apparatus heats up 65 DEG C.Material slowly becomes paste dope, speed of agitator up-regulation
To 200r/min.Addition finishes, insulation reaction 6h.1g samples are taken, are dissolved with 20mL carbon dioxide-free waters, survey pH 8.21,
Then reaction finishes.Then directly dry, 150 DEG C of drying temperature, obtain finished product, content 98.88%, comply fully with Standard.Its
Middle drying course energy consumption is 28.05 kilograms of standard coals/ton product.
Embodiment 3
Acetic acid 100g is weighed, is drawn into mixing apparatus.Speed of agitator control is opened in 50r/min.Weigh carbonic acid sodium powder
Last 88.59g, is slowly added into powdered sodium carbonate, and mixing apparatus heats up 80 DEG C.Material slowly becomes paste dope, on speed of agitator
It is adjusted to 300r/min.Addition finishes, insulation reaction 5h.1g samples are taken, are dissolved with 20mL carbon dioxide-free waters, survey pH
9.2, then reaction finishes.Then directly dry, 150 DEG C of drying temperature, obtain finished product, content 99.12%, complying fully with national standard will
Ask.Wherein drying course energy consumption is 28.41 kilograms of standard coals/ton product.
Comparative example
885.95g sodium carbonate is added in mixing plant, adds water 4000g and heats up 50 DEG C and dissolve.Open speed of agitator
50r/min, 1000g acetic acid being slowly added dropwise into mixing apparatus, carry out neutralization reaction, reaction temperature is controlled at 80~90 DEG C,
Reaction time 1h.After reaction terminates, decolorizing with activated carbon 30min, filtering are added.Add after filtering under -0.06Mpa vacuum condition
Heat concentration, concentrate thermal crystalline.Then finished product is dried to obtain.It is 160 kilograms of standard coals/ton production wherein to concentrate drying course energy consumption
Product.
The existing process comparative example of table 1 and the potassium citrate performance table of comparisons obtained by embodiment 1
| Project | Unit | Comparative example | Embodiment 1 |
| Acetic acid sodium content | >=98.5% | 99.12% | 98.88% |
| Acidity and basicity | Pass through experiment | Pass through experiment | Pass through experiment |
| Lead (Pb) | ≤2.0mg/kg | ≤2.0mg/kg | ≤2.0mg/kg |
| Loss on drying | ≤ 2.0% | 1.85% | 1.65% |
| Potassium is tested | Pass through experiment | Pass through experiment | Pass through experiment |
By contrast as can be seen that being compared with traditional processing technology, the sodium acetate physical and chemical index obtained by the present invention is same
Sample has reached Standard, and outward appearance is presented white crystalline powder, is also fully consistent with Standard.Concentrated relative to traditional handicraft
The high energy consumption of process, present invention process drying energy consumption reduce by more than 82%, and production cost reduces by more than 20%.The production work simultaneously
Skill does not have intractable waste liquor to produce, and does not pollute the environment.
Claims (1)
- A kind of 1. method of one-step synthesis sodium acetate, it is characterised in that comprise the following steps that：Acetic acid to be stirred with 50~100r/min speed, is slowly added to powdered sodium carbonate, addition finishes, and is warming up to 60~80 DEG C, It is in sticky paste to continue stirring to material, and adjustment mixing speed is 200~300r/min, and after reacting 5~6h, pH value is surveyed in sampling, If pH value, between 8.0~10.0, reaction finishes, reaction dries product after terminating, and produces sodium acetate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710463396.7A CN107417512A (en) | 2017-06-19 | 2017-06-19 | A kind of method of one-step synthesis sodium acetate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710463396.7A CN107417512A (en) | 2017-06-19 | 2017-06-19 | A kind of method of one-step synthesis sodium acetate |
Publications (1)
| Publication Number | Publication Date |
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| CN107417512A true CN107417512A (en) | 2017-12-01 |
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| CN201710463396.7A Pending CN107417512A (en) | 2017-06-19 | 2017-06-19 | A kind of method of one-step synthesis sodium acetate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108191637A (en) * | 2018-01-03 | 2018-06-22 | 江苏润普食品科技股份有限公司 | The synthetic method of sodium propionate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2895990A (en) * | 1957-12-09 | 1959-07-21 | Millard S Larrison | Process of producing sodium or potassium acetate, propionate or butyrate |
| US3919307A (en) * | 1973-02-26 | 1975-11-11 | Eastman Kodak Co | Process for reacting solid particulate matter with a gas |
| JPH07278044A (en) * | 1994-04-08 | 1995-10-24 | Oogaki Kasei Kogyo Kk | Production of anhydrous sodium acetate having improved quality |
| CN106349054A (en) * | 2016-08-29 | 2017-01-25 | 南通奥凯生物技术开发有限公司 | Method for preparing anhydrous sodium acetate based on the generation between acetic acid and sodium carbonate |
-
2017
- 2017-06-19 CN CN201710463396.7A patent/CN107417512A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2895990A (en) * | 1957-12-09 | 1959-07-21 | Millard S Larrison | Process of producing sodium or potassium acetate, propionate or butyrate |
| US3919307A (en) * | 1973-02-26 | 1975-11-11 | Eastman Kodak Co | Process for reacting solid particulate matter with a gas |
| JPH07278044A (en) * | 1994-04-08 | 1995-10-24 | Oogaki Kasei Kogyo Kk | Production of anhydrous sodium acetate having improved quality |
| CN106349054A (en) * | 2016-08-29 | 2017-01-25 | 南通奥凯生物技术开发有限公司 | Method for preparing anhydrous sodium acetate based on the generation between acetic acid and sodium carbonate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108191637A (en) * | 2018-01-03 | 2018-06-22 | 江苏润普食品科技股份有限公司 | The synthetic method of sodium propionate |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171201 |
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| RJ01 | Rejection of invention patent application after publication |