Application of a molecular sieve adsorption material in the removal of heavy metals in traditional Chinese medicine

A technology of adsorption material and molecular sieve, which is applied in the field of traditional Chinese medicine to remove harmful heavy metals, and can solve the problem of loss of fat-soluble components of traditional Chinese medicine.

Active Publication Date: 2016-08-31
SHANGHAI LVQIANG NEW MATERIALS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method of removing heavy metals from traditional Chinese medicines reported in domestic scientific and technological literature also includes supercritical extraction (Li Qiong. The process and mechanism of heavy metals in Chinese medicinal materials extracted with supercritical carbon dioxide [D]. South China University of Technology, 2008), this method is also easy Lose the fat-soluble components of traditional Chinese medicine

Method used

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  • Application of a molecular sieve adsorption material in the removal of heavy metals in traditional Chinese medicine
  • Application of a molecular sieve adsorption material in the removal of heavy metals in traditional Chinese medicine
  • Application of a molecular sieve adsorption material in the removal of heavy metals in traditional Chinese medicine

Examples

Experimental program
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Effect test

Embodiment l

[0028] Removal of Heavy Metals by Suspension of Licorice Extract

[0029] The process of molecular sieve adsorption material: the raw powder of 13X molecular sieve (silicon to aluminum ratio 2.7) is activated at 350°C for 2 hours; suspended in 1~2moL / LCaCl 2 Soak in the solution for 48 hours, take out the molecular sieve, wash the surface with water for 3 times, dry it at 110-150°C for 1 hour, mix it with 1 / 20-1 / 10 mass of alumina activation powder, spray a small amount of water, and extrude After being shaped into strips, it was activated at 450°C for more than 1 hour. After being pulverized by a pulverizer, the particles of 20 mesh to 200 mesh were screened out for subsequent experiments.

[0030]Suspension of licorice extract to remove heavy metals: According to the production process of licorice extract, 100g of licorice was extracted with water twice, and the combined extract was about 1.4L, and standard solutions of copper, cadmium, lead, mercury, and arsenic were added ...

Embodiment 2

[0046] Removal of Heavy Metals by Adsorption Column of Licorice Extract Solution

[0047] The process of molecular sieve adsorption material: the raw powder of 13X molecular sieve (silicon to aluminum ratio 2.9) was activated at 450°C for 8 hours; suspended in 1~2moL / L Ca(NO 3 ) 2 Soak in the solution for more than 10 hours, take out the molecular sieve, wash the surface with water for 3 times, dry it at 110-150°C for 1 hour, spray a small amount of water with 1 / 20-1 / 10 of the mass of silica gel adhesive, and pass through the rolling ball mechanism Form into a spherical shape with a particle size of 0.8-1.2mm, place it at 450°C for activation for more than 1 hour, and use it for subsequent experiments.

[0048] The adsorption column of licorice extract solution removes heavy metals: 100g of licorice extract is dissolved in 800mL of hot water, and 500mL of ethanol is added according to the volume for precipitation. The heavy metals in the paste exceeded the standard by 2 time...

Embodiment 3

[0064] Removal of Heavy Metals by Adsorption Column of Banlangen Extract

[0065] The process of molecular sieve adsorption material: the raw powder of 10X molecular sieve (silicon to aluminum ratio 2.6) is activated at 550°C for more than 1 hour; suspended in 2moL / L Ca(NO 3 ) 2 Soak in the solution for more than 10 hours, take out the molecular sieve, wash the surface with water for 3 times, dry it at 110-150°C for 1 hour, spray a small amount of water with 1 / 20-1 / 10 mass of baked adhesive, and pass through the rolling ball Machine into spherical shape with a particle size of 0.8-1.2 mm, and activate at 450°C for more than 1 hour for subsequent experiments.

[0066] Removal of heavy metals by adsorption column of Radix isatidis extract: slice 100g of Radix Radix Radix, extract twice with water, combine 1.4L of extracts, add 500mL of ethanol for precipitation according to volume, and add copper, cadmium, lead, mercury, arsenic to the filtered solution of about 1.8L The stand...

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Abstract

The invention relates to application of a molecular sieve adsorption material in removing of traditional Chinese medicine heavy metal. The application disclosed by the invention comprises the following steps of: (1) extracting Chinese herbal medicines, traditional Chinese medicine extracts or traditional Chinese medicine extractives through a solvent so as to obtain traditional Chinese medicine extracting solution by taking water as the solvent; (2) preparing a Ca-X molecular sieve adsorption material; and (3) suspending the Ca-X molecular sieve adsorption material in the traditional Chinese medicine extracting solution, or filling the Ca-X molecular sieve adsorption material to form an adsorption column, and enabling the traditional Chinese medicine extracting solution to flow through the adsorption column so as to remove heavy metal in the traditional Chinese medicine extracting solution. Compared with the prior art, the molecular sieve adsorption material disclosed by the invention can be used for removing harmful heavy metals always exceeding standards in traditional Chinese medicines, such as copper, cadmium, lead, mercury and arsenic; furthermore, the molecular sieve adsorption material is low in loss of effective components of traditional Chinese medicines; and the molecular sieve adsorption material has the advantages of being high selectivity of heavy metals, strong in removing capability, recyclable and the like.

Description

technical field [0001] The invention belongs to the field of removing harmful heavy metals from traditional Chinese medicines and Chinese patent medicines, and in particular relates to the application of a molecular sieve adsorption material in removing heavy metals from traditional Chinese medicines, which can selectively remove harmful heavy metals (copper, cadmium, lead, mercury, arsenic, etc.), without losing its effective active components. Background technique [0002] With the increase in the discharge of industrial and agricultural waste and the extensive use of pesticides and chemical fertilizers, there are varying degrees of heavy metal pollution in my country's natural soil and water bodies. Chinese herbal medicines grow in an environment polluted by heavy metals, which will enrich the heavy metals in the environment and cause the heavy metal content to exceed the standard. After these heavy metal elements are absorbed by the human body, when they accumulate to a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D15/08
Inventor 王鹏飞余金鹏张佳胡杰徐华胜周永贤朱琳陈保华
Owner SHANGHAI LVQIANG NEW MATERIALS CO LTD
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