阅读说明：本技术 一种提取薰衣草蒸馏废渣中腐殖酸的方法 (Method for extracting humic acid from lavender distillation waste residue ) 是由 闫秀玲 刘天宝 李涛君 吴雨鑫 安瑜 于 2020-05-22 设计创作，主要内容包括：本发明公开了一种提取薰衣草蒸馏废渣中腐殖酸的方法,包括以下步骤：步骤1：将薰衣草蒸馏废渣干燥处理后打碎,再进行滤筛处理；步骤2：将步骤1得到的薰衣草蒸馏废渣与氢氧化钾溶液混合后,置入高压反应釜中反应；步骤3：将步骤2反应后得到的溶液进行过滤,收集滤液；步骤4：对步骤3得到的溶液调节pH值为6.5-7.0,将溶液静置沉降；步骤5：将步骤4沉降后的混合溶液采用机械处理使得固液分离,对分离后的固体洗涤、过滤后进行干燥处理；本发明的有益之处在于实现了从薰衣草蒸馏废渣提取腐殖酸分子,并且工艺简单、成本低。(The invention discloses a method for extracting humic acid from lavender distilled waste residue, which comprises the following steps: step 1: drying and crushing the lavender distilled waste residue, and then carrying out filtering treatment; step 2: mixing the lavender distilled waste residue obtained in the step 1 with a potassium hydroxide solution, and placing the mixture into a high-pressure reaction kettle for reaction; and step 3: filtering the solution obtained after the reaction in the step 2, and collecting filtrate; and 4, step 4: adjusting the pH value of the solution obtained in the step 3 to 6.5-7.0, and standing and settling the solution; and 5: carrying out mechanical treatment on the mixed solution settled in the step (4) to separate solid from liquid, washing and filtering the separated solid, and then drying; the method has the advantages of realizing the extraction of humic acid molecules from the lavender distillation waste residue, along with simple process and low cost.)

1. The method for extracting humic acid from lavender distilled waste residue is characterized by comprising the following steps:

step 1: drying and crushing the lavender distilled waste residue, and then carrying out filtering treatment;

step 2: mixing the lavender distilled waste residue obtained in the step 1 with a potassium hydroxide solution according to the weight ratio of 1-4: mixing the components in a mass ratio of 60, and placing the mixture into a high-pressure reaction kettle for reaction;

and step 3: filtering the solution obtained after the reaction in the step 2, and collecting filtrate;

and 4, step 4: adjusting the pH value of the solution obtained in the step 3 to 6.5-7.0, and standing and settling the solution;

and 5: and 4, mechanically treating the mixed solution settled in the step 4 to separate solid from liquid, washing and filtering the separated solid, and drying.

2. The method of claim 1, wherein the drying process is drying in the shade.

3. The method as claimed in claim 1, wherein the sieve of step 1 has a diameter of 100 mesh.

4. The method according to claim 1, wherein the concentration of the sodium hydroxide solution is 0.5 to 3 mol/L.

5. The method as claimed in claim 1, wherein the high pressure reaction kettle in step 2 is at a temperature of 150 ℃ and 200 ℃ for 2-15 h.

6. The method according to claim 1, wherein the filtering in step 3 is performed by using filter paper, and the filter paper is neutral filter paper.

7. The method of claim 1, wherein the pH adjustment in step 4 is performed using phosphoric acid.

8. The method of claim 7, wherein the phosphoric acid concentration is 0.1 to 2 mol/L.

9. The method of claim 1, wherein the mechanical treatment comprises one of pressure filtration, suction filtration, and centrifugation.

10. Plant humic acid produced by the process of any one of claims 1 to 9.

Technical Field

The invention belongs to solid waste resource utilization, and particularly relates to a method for extracting humic acid from lavender distilled waste residue.

Background

Enterprises in Xinjiang Ili, the largest perfume production base in Asian regions extract lavender essential oil by a steam extraction method, the yield of the lavender essential oil is over 200 tons under the support of a planting area of approximately 5 ten thousand mu of Ili, lavender with fresh and cool aroma and strong and pleasant fragrance is a valuable and important natural perfume plant, and the extracted essential oil has the functions of calming, hypnotizing, spasmolysis, antibiosis and the like. Generally speaking, the volatile essential oil accounts for 1% -3% of the total weight of the herbs, and the waste residue generated by extracting the lavender essential oil by Yili in Xinjiang can reach 2 million tons. In addition, Yili also produces essential oils of citrus, mint, grape seeds, etc., producing a large amount of waste residues.

However, because the Ili climate is dry, the water loss is fast, and the survival of microorganisms such as bacteria, yeasts, fungi, actinomycetes and the like is not facilitated, so that a large amount of water is consumed in the treatment path of the lavender waste residue used as the fertilizer, the cost is high, and the economic benefit is low. The economic benefit of waste residue treatment is not enough and is a common disease for essential oil manufacturers. The waste residue after the extraction of the essential oil is useless and can not be used by people. Farmers living in Yili lavender base need to spend money to hire people to process waste residues, which brings difficulty to production and life.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a method for extracting humic acid from lavender distilled waste residue, aiming at the problem that the unused and useless lavender distilled waste residue is a potential safety hazard in the environment. According to the method, the lavender distilled waste residue is taken as a starting point, the process of alkali dissolution-acid precipitation is adopted, high-quality humic acid is obtained from the lavender distilled waste residue, the lavender distilled waste residue is expected to be economically, effectively, environmentally and environmentally treated, the used equipment is simple, the operability is high, and a new economic and applicable idea is provided for waste residue treatment of essential oil manufacturers.

In order to achieve the purpose, the invention is realized by the following technical scheme:

a method for extracting humic acid from lavender distilled waste residue comprises the following steps:

step 1: drying and crushing the lavender distilled waste residue, and then carrying out filtering treatment;

step 2: mixing the lavender distilled waste residue obtained in the step 1 with a potassium hydroxide solution according to the weight ratio of 1-4: mixing the components in a mass ratio of 60, and placing the mixture into a high-pressure reaction kettle for reaction;

and step 3: filtering the solution obtained after the reaction in the step 2, and collecting filtrate;

and 4, step 4: adjusting the pH value of the solution obtained in the step 3 to 6.5-7.0, and standing and settling the solution;

and 5: and 4, mechanically treating the mixed solution settled in the step 4 to separate solid from liquid, washing and filtering the separated solid, and drying.

Preferably, the drying treatment is drying in the shade.

Preferably, the diameter of the sieve in the sieving treatment in the step 1 is 100 meshes.

Preferably, the concentration of the sodium hydroxide solution is 0.5-3 mol/L.

Preferably, the conditions of the high-pressure reaction kettle in the step 2 are 150-200 ℃ and the time is 2-15 h.

Preferably, the filtration in step 3 is performed by using filter paper, and the filter paper is neutral filter paper.

Preferably, phosphoric acid is used for adjusting the pH value in the step 4.

Preferably, the concentration of the phosphoric acid is 0.1 to 2 mol/L.

Preferably, the mechanical treatment comprises one of filter pressing, suction filtration and centrifugation.

Preferably, the plant humic acid is prepared by any one of the processes.

Compared with the prior art, the invention has the following advantages and beneficial effects:

(1) the extraction of humic acid with economic value by utilizing the lavender distillation waste residue is realized;

(2) the method has the advantages of simple equipment and high operability, and provides an economical and applicable new idea for treating the waste residue of an essential oil factory;

drawings

FIG. 1 is a schematic diagram of the extraction process of the present invention;

FIG. 2 is an infrared image of the humic acid product extracted according to the invention;

FIG. 3 is a diagram showing a sample solution obtained by filtration after the reaction in the autoclave.

Detailed Description

The invention will be further described with reference to specific embodiments, and the advantages and features of the invention will become apparent as the description proceeds. The examples are illustrative only and do not limit the scope of the present invention in any way. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention, and that the same is not to be considered as limiting the invention

A method for extracting humic acid from lavender distilled waste residue comprises the following steps:

step 1: drying and crushing the lavender distilled waste residue, and then carrying out filtering treatment;

step 2: mixing the lavender distilled waste residue obtained in the step 1 with a potassium hydroxide solution according to the weight ratio of 1-4: mixing the components in a mass ratio of 60, and placing the mixture into a high-pressure reaction kettle for reaction;

and step 3: filtering the solution obtained after the reaction in the step 2, and collecting filtrate;

and 4, step 4: adjusting the pH value of the solution obtained in the step 3 to 6.5-7.0, and standing and settling the solution;

and 5: and 4, mechanically treating the mixed solution settled in the step 4 to separate solid from liquid, washing and filtering the separated solid, and drying.

Preferably, the drying treatment is drying in the shade.

Preferably, the diameter of the sieve in the sieving treatment in the step 1 is 100 meshes.

Preferably, the concentration of the sodium hydroxide solution is 0.5-3 mol/L.

Preferably, the conditions of the high-pressure reaction kettle in the step 2 are 150-200 ℃ and the time is 2-15 h.

Preferably, the filtration in step 3 is performed by using filter paper, and the filter paper is neutral filter paper.

Preferably, phosphoric acid is used for adjusting the pH value in the step 4.

Preferably, the concentration of the phosphoric acid is 0.1 to 2 mol/L.

Preferably, the mechanical treatment comprises one of filter pressing, suction filtration and centrifugation.

Preferably, the plant humic acid prepared by any one of the processes