CN104628560A - Synthesizing and refining method of ethyl acetate - Google Patents
Synthesizing and refining method of ethyl acetate Download PDFInfo
- Publication number
- CN104628560A CN104628560A CN201310546287.3A CN201310546287A CN104628560A CN 104628560 A CN104628560 A CN 104628560A CN 201310546287 A CN201310546287 A CN 201310546287A CN 104628560 A CN104628560 A CN 104628560A
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- CN
- China
- Prior art keywords
- ethyl acetate
- purification
- synthesizing
- diethyl ether
- refining method
- 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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Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/08—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/48—Separation; Purification; Stabilisation; Use of additives
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a synthesizing and refining method of ethyl acetate. The synthesizing and refining method comprises following steps: ethanol, concentrated sulfuric acid, and acetic acid are pumped into a reaction kettle at a certain ratio, a small amount of zeolite catalyst is added, an obtained mixture is subjected to water bath heating, and obtained ethyl acetate gas is delivered into a container after condensation; deionized water of an equal amount is added, an obtained mixed material is mixed uniformly, and is subjected to water bath evaporation; and evaporated gas is delivered through calcium chloride for drying, and ethyl acetate is obtained via condensation. According to the synthesizing and refining method, ethanol and acetic acid are taken as raw materials, ethyl acetate is obtained in the presence of the catalyst, the process is controllable, the raw materials are abundant, product yield is high, and quality is excellent.
Description
Technical field
The present invention relates to a kind of synthetic method of industrial chemicals, be specifically related to a kind of Synthesis Diethyl ether technique and process for purification.
Background technology
Ethyl acetate is a kind of broad-spectrum fine chemical product, there is excellent solvability, quick-drying, of many uses, a kind of very important Organic Chemicals and fabulous industrial solvent, be widely used in the production process of cellulose acetate, ethyl cellulose, chlorinated rubber, ethenoid resin, acetate fiber resin, synthetic rubber, coating and paint etc., be widely used in industrial solvent, in the products such as coating, tackiness agent, ethyl cellulose, leatheroid, malthoid tinting material, regenerated fiber; As tackiness agent, for the production of printing-ink, olivet; As extraction agent, for the production of the products such as medicine, organic acid; As perfume base, for the main raw material of the fruit essences such as pineapple, banana, strawberry and whisky, milk wet goods spices.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, provides a kind of new Synthesis Diethyl ether technique and process for purification.
Technical problem to be solved by this invention is realized by following technical scheme.The present invention is a kind of Synthesis Diethyl ether technique and process for purification, be characterized in: ethanol, the vitriol oil, acetic acid are pumped in reactor according to certain formula rate, and add a small amount of zeolite catalyst, then heating in water bath, the cease of ethyl-acetate gas produced is imported in container through condensation, adds the deionized water of equivalent, mix, carry out water-bath evaporation, the calcium chloride of the gas drying of evaporation is dry, be ethyl acetate after condensation.
Compared with prior art, the present invention with ethanol and acetic acid for raw material, synthesizing ethyl acetate under the effect of catalyzer, process control, abundant raw material, and product yield is high, quality better.
Embodiment
Below further describe concrete technical scheme of the present invention, so that those skilled in the art understands the present invention further, and do not form the restriction to its right.
Embodiment 1, a kind of Synthesis Diethyl ether technique and process for purification, the formula rate of the ethanol by 90% 5 liters, the vitriol oil 10 liters, acetic acid 20 liters pumps in reactor, adds 100 grams of zeolite catalysts, then heating in water bath to 90 DEG C, the cease of ethyl-acetate gas produced is imported in container through condensation, add the deionized water of equivalent, mix, carry out water-bath evaporation, bath temperature is 80 DEG C, and the calcium chloride of the gas drying of evaporation is dry, be ethyl acetate after condensation.
Claims (6)
1. Synthesis Diethyl ether technique and a process for purification, is characterized in that raw materials used formula is ethanol, the vitriol oil, acetic acid, and under the effect of catalyzer, through adding thermal synthesis, washing, distillation, desiccant dryness form.
2. a kind of Synthesis Diethyl ether technique according to claim 1 and process for purification, is characterized in that described composition of raw materials is ethanol 5 liters, the vitriol oil 10 liters, the acetic acid 20 liters of 90%.
3. a kind of Synthesis Diethyl ether technique according to claim 1 and process for purification, it is characterized in that described catalyzer is zeolite catalyst, consumption is the 0.2-1% of material quantity.
4. a kind of Synthesis Diethyl ether technique according to claim 1 and process for purification, adding thermal synthesis described in it is characterized in that is to 80-90 DEG C with heating in water bath.
5. a kind of Synthesis Diethyl ether technique according to claim 1 and process for purification, is characterized in that described distillation temperature is 80-85 DEG C.
6. a kind of Synthesis Diethyl ether technique according to claim 1 and process for purification, is characterized in that calcium chloride used by described siccative.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310546287.3A CN104628560A (en) | 2013-11-07 | 2013-11-07 | Synthesizing and refining method of ethyl acetate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310546287.3A CN104628560A (en) | 2013-11-07 | 2013-11-07 | Synthesizing and refining method of ethyl acetate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104628560A true CN104628560A (en) | 2015-05-20 |
Family
ID=53207857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310546287.3A Pending CN104628560A (en) | 2013-11-07 | 2013-11-07 | Synthesizing and refining method of ethyl acetate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104628560A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4440958A (en) * | 1980-08-01 | 1984-04-03 | The British Petroleum Company Limited | Method for promoting the activity of cation-exchangeable layered clay and zeolite catalysts in proton-catalysed reactions |
| JP2000086578A (en) * | 1998-09-10 | 2000-03-28 | Mitsubishi Gas Chem Co Inc | Production of methyl acetate |
| CN101070284A (en) * | 2007-06-04 | 2007-11-14 | 张立省 | Shearing-use method fo cooling device in acetic ether production |
-
2013
- 2013-11-07 CN CN201310546287.3A patent/CN104628560A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4440958A (en) * | 1980-08-01 | 1984-04-03 | The British Petroleum Company Limited | Method for promoting the activity of cation-exchangeable layered clay and zeolite catalysts in proton-catalysed reactions |
| JP2000086578A (en) * | 1998-09-10 | 2000-03-28 | Mitsubishi Gas Chem Co Inc | Production of methyl acetate |
| CN101070284A (en) * | 2007-06-04 | 2007-11-14 | 张立省 | Shearing-use method fo cooling device in acetic ether production |
Non-Patent Citations (3)
| Title |
|---|
| 郭书好主编: "《有机化学实验》", 31 August 2008 * |
| 郭书好等: "《有机化学实验与指导》", 29 February 1996 * |
| 陈希军主编: "《基础化学实验》", 31 August 2009 * |
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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: 20150520 |