阅读说明：本技术 一种蓝色固体酒精及其制备方法 (Blue solid alcohol and preparation method thereof ) 是由 朱峰 姚欣 黄耿昌 吴思敏 卢超文 于 2019-11-21 设计创作，主要内容包括：本发明公开了一种蓝色固体酒精及其制备方法,所述固体酒精按重量份数计包括：猪油8～10份、工业酒精79～81份、氢氧化钠3～5份、水15～25份、硝酸铜0.001～0.25份；所述制备方法包括：步骤一、按配比取猪油、工业酒精和水,于80℃～90℃搅拌溶解混合,步骤二、于80℃～90℃温度边搅拌边加入氢氧化钠溶液,调节pH值至7.8～8.2,然后继续回流反应30分钟,步骤三、按配比加入硝酸铜溶液,搅拌均匀,步骤四、将反应液倾入模具,自然冷却至室温,凝固成型,得到蓝色固体酒精。本发明提供的蓝色固体酒精及其制备方法,具有材料廉价易得,制备方法简单易行,时间短的优点,可作为固体酒精的工业化制造方法推广应用,具有较高的经济价值。(The invention discloses blue solid alcohol and a preparation method thereof, wherein the solid alcohol comprises the following components in parts by weight: 8-10 parts of lard, 79-81 parts of industrial alcohol, 3-5 parts of sodium hydroxide, 15-25 parts of water and 0.001-0.25 part of copper nitrate; the preparation method comprises the following steps: step one, taking lard, industrial alcohol and water according to a ratio, stirring, dissolving and mixing at a temperature of 80-90 ℃, step two, adding a sodium hydroxide solution at a temperature of 80-90 ℃ while stirring, adjusting the pH value to 7.8-8.2, then continuing reflux reaction for 30 minutes, step three, adding a copper nitrate solution according to a ratio, stirring uniformly, step four, pouring the reaction solution into a mold, naturally cooling to room temperature, and solidifying and forming to obtain the blue solid alcohol. The blue solid alcohol and the preparation method thereof provided by the invention have the advantages of cheap and easily available materials, simple and feasible preparation method and short time, can be popularized and applied as an industrial preparation method of the solid alcohol, and have higher economic value.)

1. The blue solid alcohol is characterized by comprising the following components in parts by weight: 8-10 parts of lard, 79-81 parts of industrial alcohol, 3-5 parts of sodium hydroxide, 15-25 parts of water and 0.001-0.25 part of copper nitrate.

2. The blue solid alcohol according to claim 1, wherein the mass ratio of lard oil to industrial alcohol is 1: 10.

3. A method for producing a blue solid alcohol according to claim 1, comprising the steps of:

the method comprises the following steps: taking lard, industrial alcohol and water according to the proportion, stirring, dissolving and mixing at the temperature of 80-90 ℃;

step two: adding a sodium hydroxide solution at the temperature of 80-90 ℃ while stirring, adjusting the pH value to 7.8-8.2, and then continuing reflux reaction for 30 minutes;

step three: adding a copper nitrate solution according to the proportion, and uniformly stirring;

step four: pouring the reaction liquid into a mold, naturally cooling to room temperature, and solidifying and forming to obtain the blue solid alcohol.

4. The method for producing blue solid alcohol according to claim 3, wherein the sodium hydroxide solution is a 40% sodium hydroxide solution.

Technical Field

The invention relates to the technical field of solid alcohol, and particularly relates to blue solid alcohol and a preparation method thereof.

Background

Solid alcohol, or solidified alcohol, belongs to the derivative of alcohol, is widely applied to catering industry, tourism industry, field operation and the like as a solid fuel, is safer compared with liquid alcohol, and has the characteristics of convenient use, transportation and carrying and less environmental pollution during combustion. In the prior art, solid alcohol is usually prepared by a method of solidifying industrial alcohol by adopting a solidifying agent, and the currently commonly used solidifying agent mainly comprises the following components: calcium acetate, nitrocellulose, ethyl carboxyethyl cellulose, higher fatty acids, and the like. The method for preparing the solid alcohol by using the waste oil as the curing agent is also beneficial, but has the defects of long saponification time, large waste oil ratio and small subsequent solid alcohol combustion value. It is seen that improvements and enhancements to the prior art are needed.

Disclosure of Invention

In view of the defects of the prior art, the invention aims to provide blue solid alcohol and a preparation method thereof, and aims to overcome the defects that the prior art does not adopt lard as a curing agent to prepare the solid alcohol and the preparation method of the prior solid alcohol is long in time.

In order to achieve the purpose, the invention adopts the following technical scheme:

the blue solid alcohol comprises the following components in parts by weight: 8-10 parts of lard, 79-81 parts of industrial alcohol, 3-5 parts of sodium hydroxide, 15-25 parts of water and 0.001-0.25 part of copper nitrate.

In the blue solid alcohol, the mass ratio of the lard oil to the industrial alcohol is 1: 10.

A method for preparing the blue solid alcohol as described above, wherein the method comprises the steps of:

the method comprises the following steps: taking lard, industrial alcohol and water according to the proportion, stirring, dissolving and mixing at the temperature of 80-90 ℃;

step two: adding a sodium hydroxide solution at the temperature of 80-90 ℃ while stirring, adjusting the pH value to 7.8-8.2, and then continuing reflux reaction for 30 minutes;

step three: adding a copper nitrate solution according to the proportion, and uniformly stirring;

step four: pouring the reaction liquid into a mold, naturally cooling to room temperature, and solidifying and forming to obtain the blue solid alcohol.

In the preparation method of the blue solid alcohol, the sodium hydroxide solution is 40% sodium hydroxide solution.

Has the advantages that:

the blue solid alcohol adopts lard as a raw material of a curing agent, has the advantages of low price and easy obtainment, is a blue semitransparent gel, generates blue flame when being combusted, has no black smoke, and has high heat value and low residue rate. The preparation method has simple steps and is easy to realize, and the lard oil is premixed with the water and the alcohol, so that the dispersibility of the lard oil in the water is good, the subsequent hydrolysis speed is high, the reaction time is greatly saved, and the energy consumption is reduced.

Detailed Description

The present invention provides a blue solid alcohol and a method for preparing the same, and the present invention will be further described in detail with reference to the following examples in order to make the objects, technical solutions and effects of the present invention clearer and clearer. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The invention provides blue solid alcohol containing lard, which comprises the following components in parts by weight: 8-10 parts of lard, 79-81 parts of industrial alcohol, 3-5 parts of sodium hydroxide, 15-25 parts of water and 0.001-0.25 part of copper nitrate.

The blue solid alcohol containing lard in the proportion takes lard as a raw material of a curing agent, is hydrolyzed under the action of sodium hydroxide to obtain sodium stearate, the sodium stearate is mixed with ethanol at a certain temperature to form colloid, the sodium stearate is cured after cooling, and the crosslinked sodium stearate locks ethanol molecules at the same time to form the solid alcohol.

Preferably, the mass ratio of the lard oil to the industrial alcohol is 1: 10. The higher the proportion of lard, the better the forming effect after curing and the firmer texture, but the too large amount of lard will reduce the calorific value of solid alcohol. When the mass ratio of the lard to the industrial alcohol is 1:10, the high-heat-value heat-release-rate alcohol has a good forming effect, and the high-heat-value heat-release-rate alcohol has high heat value and long combustion time during combustion.

A method for preparing the lard-containing blue solid alcohol as described above, comprising the steps of:

the method comprises the following steps: taking the lard, the industrial alcohol and the water according to the proportion, stirring, dissolving and mixing at the temperature of 80-90 ℃. The lard oil, the industrial alcohol and the water are mixed in advance, so that the subsequent hydrolysis degree of the lard oil can be improved, and the lard oil, the industrial alcohol and the water can be dissolved mutually, so that the dispersibility of the lard oil in the water can be improved by mixing the lard oil, the industrial alcohol and the water, and the subsequent hydrolysis reaction is facilitated.

Step two: adding sodium hydroxide solution at the temperature of 80-90 ℃ while stirring, adjusting the pH value to 7.8-8.2, and then continuing reflux reaction for 30 minutes. Because the lard oil in the step one can be well dispersed in the mixed solution of alcohol and water, when the sodium hydroxide solution is added, the hydrolysis reaction can be carried out quickly, so that the hydrolysis speed is greatly improved, and the hydrolysis reaction can be more complete only by refluxing for 30min at 80-90 ℃.

Step three: adding copper nitrate solution according to the proportion, and stirring uniformly. The added copper nitrate has the combustion-supporting effect, the flame of the solid alcohol is blue, the combustion-supporting effect is better when the added amount of the copper nitrate is more, and the flame is more blue when the solid alcohol is combusted.

Step four: pouring the reaction liquid into a mold, naturally cooling to room temperature, and solidifying and forming to obtain the blue solid alcohol.

In the preparation method of the blue solid alcohol containing lard, the sodium hydroxide solution is 40% sodium hydroxide solution. The solution concentration of the sodium hydroxide influences the water content in the solid alcohol, and the sodium hydroxide solution with higher concentration is prepared to reduce the water content in the solid alcohol, so that the proportion of the alcohol in the solid alcohol is higher, and the unit combustion heat value of the solid alcohol is improved.

In the preparation method of the blue solid alcohol containing lard oil, the lard oil is refined from fat pork, and the refining method comprises the following specific steps: 1000 parts of fat pork or lard is taken and cut into small pieces or minced by a meat grinder. And then 200 parts of water is added into the pot, then the fat pork or the pork leaf fat fragments are added, the heating is carried out, the temperature in the oil pot is controlled to be not higher than 200 ℃, the heating is stopped when the water is completely evaporated and the fat pork or the pork leaf fat is not withered any more, the heating is stopped after the fat pork or the pork leaf fat fragments are cooled slightly, and the hot fat is filtered to obtain the lard for later use.