CN101712614A - Method for preparing 2-ethyl hexahydric aluminum - Google Patents
Method for preparing 2-ethyl hexahydric aluminum Download PDFInfo
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- CN101712614A CN101712614A CN 200810151989 CN200810151989A CN101712614A CN 101712614 A CN101712614 A CN 101712614A CN 200810151989 CN200810151989 CN 200810151989 CN 200810151989 A CN200810151989 A CN 200810151989A CN 101712614 A CN101712614 A CN 101712614A
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- hexanoic acid
- ethyl hexanoic
- aqueous solution
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- aluminum
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Abstract
The invention relates to a method for preparing 2-ethyl hexahydric aluminum, which comprises the following preparation steps of: (1) mixing 2-ethyl caproic acid aqueous solution and an aluminum acetate aqueous solution in a reactor and heating to 80 DEG C to obtain a mixed solution; (2) adding a sodium hydroxide aqueous solution into the mixed solution; after the addition is finished, stirring to react for 1.5-2.5 hours to obtain a coarse product; (3) filtering and airing the coarse product to obtain a 2-ethyl hexahydric aluminum finished product. By carrying out comparison research on the traditional process for synthesizing the 2-ethyl hexahydric aluminum, the optimal reaction condition is confirmed; accordingly, the reaction yield is improved, and the method is more suitable for the requirement of industrial production, thereby achieving the market requirement and obtaining successful export. In addition, the market competitive capacity of enterprises is improved, and the product can be greatly popularized and applied in the market.
Description
Technical field
The invention belongs to the organic compound preparation field, especially a kind of preparation method of 2 ethyl hexanoic acid aluminium.
Background technology
2 ethyl hexanoic acid aluminium is a kind of strong thickening material that grows up from the fifties, and it is used in lubricating grease, thickening benzene, gasoline and some technical oilss of turpentine wet goods and fabric waterproof and paint, the coating widely.The intensity of films such as the paint after its thickening, coating increases, and metal is had good adhesive force power.It also is used in the additive of the sudden strain of a muscle colour solid of tlc analysis and rocket propellant in addition, can effectively improve the fuel value of fuel.At present, the synthetic method of 2 ethyl hexanoic acid aluminium was carried out report in documents more both domestic and external.Existing these synthetic methods are roughly the same, use comparatively extensive, but the product yield that adopts this method to synthesize is lower, is unsuitable for suitability for industrialized production, can not reach market demands.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of new reaction yield height, suitability for industrialized scale operation, good product quality is provided and can satisfies the preparation method of the 2 ethyl hexanoic acid aluminium of market demands.
The present invention solves its technical problem and is achieved through the following technical solutions:
A kind of preparation method of 2 ethyl hexanoic acid aluminium is characterized in that: its preparation process is:
(1). will the 2 ethyl hexanoic acid aqueous solution and the aluminum acetate aqueous solution drop in the reactor and mix, heat temperature raising to 80 ℃ obtains mixing solutions;
(2). in mixing solutions, add aqueous sodium hydroxide solution, add the back restir reaction 1.5～2.5 hours that finishes, obtain thick finished product;
(3). be 2 ethyl hexanoic acid aluminium finished product with thick finished product suction filtration, after air-dry.
And the 2 ethyl hexanoic acid in the described 2 ethyl hexanoic acid aqueous solution and the ratio of weight and number of the aluminum acetate in the aluminum acetate aqueous solution are 1: 1.5～2.
And the 2 ethyl hexanoic acid in the described 2 ethyl hexanoic acid aqueous solution and the ratio of weight and number of the sodium hydroxide in the aqueous sodium hydroxide solution are 2: 1.
And the concentration of the described 2 ethyl hexanoic acid aqueous solution is 27～33%.
And the concentration of the described aluminum acetate aqueous solution is 30～35%.
And the concentration of described aqueous sodium hydroxide solution is 27～33%.
Advantage of the present invention and beneficial effect are:
The present invention has determined optimum reaction condition by research that the synthesis technique of existing 2 ethyl hexanoic acid aluminium is compared, so reaction yield is improved, and make it more appropriate to industrial requirement, thereby reaches market demands, obtains to export successfully.In addition, improved the market competitiveness of enterprise, made this product can on market, obtain bigger applying.
Embodiment
The invention will be further described below by specific embodiment.Following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
A kind of preparation method of 2 ethyl hexanoic acid aluminium is characterized in that its preparation process is:
Embodiment 1:
(1). 2 ethyl hexanoic acid 60kg and water 160kg are added in the reactor that has heating unit, electric stirring, thermometer and dropping funnel of 1000kg, aluminum acetate 90kg is dissolved in the 210kg water makes solution again, and this solution is also added in the reactor.The 2 ethyl hexanoic acid aqueous solution and the aluminum acetate aqueous solution mix, and heat temperature raising to 80 ℃ obtains mixing solutions;
(2). stir on the limit, and the limit adds the sodium hydroxide of 30kg and the made aqueous sodium hydroxide solution of water of 80kg in mixing solutions, and after adding finished, restir reaction 1.5 hours obtained thick finished product;
(3). will be 2 ethyl hexanoic acid aluminium finished product behind thick finished product suction filtration, the natural air drying.
Embodiment 2:
(1). 2 ethyl hexanoic acid 60kg and water 140kg are added in the reactor that has heating unit, electric stirring, thermometer and dropping funnel of 1000kg, aluminum acetate 100kg is dissolved in the 200kg water makes solution again, and this solution is also added in the reactor.The 2 ethyl hexanoic acid aqueous solution and the aluminum acetate aqueous solution mix, and heat temperature raising to 80 ℃ obtains mixing solutions;
(2). stir on the limit, and the limit adds the sodium hydroxide of 30kg and the made aqueous sodium hydroxide solution of water of 70kg in mixing solutions, and after adding finished, restir reaction 2 hours obtained thick finished product;
(3). will be 2 ethyl hexanoic acid aluminium finished product behind thick finished product suction filtration, the natural air drying.
Embodiment 3:
(1). 2 ethyl hexanoic acid 60kg and water 120kg are added in the reactor that has heating unit, electric stirring, thermometer and dropping funnel of 1000kg, aluminum acetate 120kg is dissolved in the 220kg water makes solution again, and this solution is also added in the reactor.The 2 ethyl hexanoic acid aqueous solution and the aluminum acetate aqueous solution mix, and heat temperature raising to 80 ℃ obtains mixing solutions;
(2). stir on the limit, and the limit adds the sodium hydroxide of 30kg and the made aqueous sodium hydroxide solution of water of 60kg in mixing solutions, and after adding finished, restir reaction 2.5 hours obtained thick finished product;
(3). will be 2 ethyl hexanoic acid aluminium finished product behind thick finished product suction filtration, the natural air drying.
Embodiment 4:
(1). 2 ethyl hexanoic acid 60kg and water 150kg are added in the reactor that has heating unit, electric stirring, thermometer and dropping funnel of 1000kg, aluminum acetate 120kg is dissolved in the 280kg water makes solution again, and this solution is also added in the reactor.The 2 ethyl hexanoic acid aqueous solution and the aluminum acetate aqueous solution mix, and heat temperature raising to 80 ℃ obtains mixing solutions;
(2). stir on the limit, and the limit adds the sodium hydroxide of 30kg and the made aqueous sodium hydroxide solution of water of 60kg in mixing solutions, and after adding finished, restir reaction 2.5 hours obtained thick finished product;
(3). will be 2 ethyl hexanoic acid aluminium finished product behind thick finished product suction filtration, the natural air drying.
Claims (6)
1. the preparation method of a 2 ethyl hexanoic acid aluminium, it is characterized in that: its preparation process is:
(1). will the 2 ethyl hexanoic acid aqueous solution and the aluminum acetate aqueous solution drop in the reactor and mix, heat temperature raising to 80 ℃ obtains mixing solutions;
(2). in mixing solutions, add aqueous sodium hydroxide solution, add the back restir reaction 1.5～2.5 hours that finishes, obtain thick finished product;
(3). be 2 ethyl hexanoic acid aluminium finished product with thick finished product suction filtration, after air-dry.
2. the preparation method of 2 ethyl hexanoic acid aluminium according to claim 1 is characterized in that: the 2 ethyl hexanoic acid in the described 2 ethyl hexanoic acid aqueous solution and the ratio of weight and number of the aluminum acetate in the aluminum acetate aqueous solution are 1: 1.5～2.
3. the preparation method of 2 ethyl hexanoic acid aluminium according to claim 1 is characterized in that: the 2 ethyl hexanoic acid in the described 2 ethyl hexanoic acid aqueous solution and the ratio of weight and number of the sodium hydroxide in the aqueous sodium hydroxide solution are 2: 1.
4. the preparation method of 2 ethyl hexanoic acid aluminium according to claim 1 is characterized in that: the concentration of the described 2 ethyl hexanoic acid aqueous solution is 27～33%.
5. the preparation method of 2 ethyl hexanoic acid aluminium according to claim 1 is characterized in that: the concentration of the described aluminum acetate aqueous solution is 30～35%.
6. the preparation method of 2 ethyl hexanoic acid aluminium according to claim 1 is characterized in that: the concentration of described aqueous sodium hydroxide solution is 27～33%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810151989 CN101712614A (en) | 2008-10-06 | 2008-10-06 | Method for preparing 2-ethyl hexahydric aluminum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810151989 CN101712614A (en) | 2008-10-06 | 2008-10-06 | Method for preparing 2-ethyl hexahydric aluminum |
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| CN101712614A true CN101712614A (en) | 2010-05-26 |
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| CN 200810151989 Pending CN101712614A (en) | 2008-10-06 | 2008-10-06 | Method for preparing 2-ethyl hexahydric aluminum |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103205155A (en) * | 2013-04-28 | 2013-07-17 | 浙江省中明化工科技有限公司 | Method for preparing printing ink thickener |
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2008
- 2008-10-06 CN CN 200810151989 patent/CN101712614A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103205155A (en) * | 2013-04-28 | 2013-07-17 | 浙江省中明化工科技有限公司 | Method for preparing printing ink thickener |
| CN103205155B (en) * | 2013-04-28 | 2014-12-03 | 浙江省中明化工科技有限公司 | Method for preparing printing ink thickener |
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Open date: 20100526 |