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Heavy metal treating agent for petroleum-contaminated soil and preparation method of heavy metal treating agent

A technology of oil pollution and heavy metals, applied in the restoration of polluted soil, soil conditioning materials, chemical instruments and methods, etc., can solve the problems of heavy metals that are difficult to deal with

Active Publication Date: 2022-03-04
江苏暨之阳环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the above-mentioned technical problems, the object of the present invention is to provide a kind of oil-contaminated soil heavy metal treatment agent and its preparation method: by dissolving the oil-contaminated soil heavy metal treatment agent in water and adding it to the oil-contaminated soil, the oil-contaminated soil heavy metal The treatment agent can have a stable coordination effect with metal ions, and chemically adsorb these metal ions, which solves the problem that the existing heavy metals in oil-contaminated soil are difficult to treat

Method used

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  • Heavy metal treating agent for petroleum-contaminated soil and preparation method of heavy metal treating agent
  • Heavy metal treating agent for petroleum-contaminated soil and preparation method of heavy metal treating agent
  • Heavy metal treating agent for petroleum-contaminated soil and preparation method of heavy metal treating agent

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Embodiment 1

[0048] This embodiment is a preparation method of a heavy metal treatment agent for petroleum-contaminated soil, comprising the following steps:

[0049] Step 1: Add 0.1mol of p-dichlorobenzene and 26.7g of aluminum trichloride to a three-necked flask equipped with a stirrer, a thermometer and a constant pressure dropping funnel, at a temperature of 20°C and a stirring rate of 200r / min Add 0.1mol chloroacetyl drop by drop while stirring, control the dropping rate to 1 drop / s, then raise the temperature to 115°C and stir for 2 hours at a constant temperature. After the reaction, add the reaction product into ice water, stir for 5 minutes, and let stand Layering, extracting the aqueous phase with chloroform, rotating the extract to remove chloroform, and then distilling, collecting fractions at a pressure of 1.3kPa and a temperature of 152°C to obtain intermediate 1;

[0050] Step 2: Add 100 g of p-hydroxybenzaldehyde solution formed by dissolving p-hydroxybenzaldehyde in tetrah...

Embodiment 2

[0057] This embodiment is a preparation method of a heavy metal treatment agent for petroleum-contaminated soil, comprising the following steps:

[0058] Step 1: Add 0.1mol p-dichlorobenzene and 26.7g aluminum trichloride to a three-necked flask equipped with a stirrer, a thermometer and a constant pressure dropping funnel, at a temperature of 30°C and a stirring rate of 300r / min Add 0.1mol chloroacetyl drop by drop while stirring, control the dropping rate at 2 drops / s, then raise the temperature to 125°C and stir for 3 hours at a constant temperature. After the reaction, add the reaction product into ice water, stir for 10 minutes, and let stand Layering, extracting the aqueous phase with chloroform, rotary evaporating the extract to remove chloroform, and then distilling, collecting fractions at a pressure of 1.3kPa and a temperature of 154°C to obtain intermediate 1;

[0059] Step 2: Add 100 g of p-hydroxybenzaldehyde solution formed by dissolving p-hydroxybenzaldehyde in ...

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Abstract

The invention discloses a heavy metal treating agent for petroleum-contaminated soil and a preparation method of the heavy metal treating agent, and relates to the technical field of heavy metal treatment.The heavy metal treating agent for the petroleum-contaminated soil is dissolved in water and then added into the petroleum-contaminated soil. A large number of carboxyl groups are added on a molecular chain of the heavy metal treating agent for the petroleum-contaminated soil, and can be better coordinated with metal ions, so that the metal ions in the soil are better adsorbed, and the problems that the heavy metal ions affect the growth condition of plants, so that the overall growth of the plants becomes poor, leaves are discolored and deformed, fruits are deformed, overground parts grow short and small, and the soil quality is poor are solved. The problems that soil is polluted by heavy metals, the heavy metals are accumulated in the soil for a long time, some heavy metal ions are absorbed by the crops and finally can enter the human body through a food chain, and various lesions and even heavy metal poisoning can be caused are solved.

Description

technical field [0001] The invention relates to the technical field of heavy metal treatment, in particular to a heavy metal treatment agent for petroleum-contaminated soil and a preparation method thereof. Background technique [0002] In the process of oil extraction, storage, transportation and production of petrochemical products, there are often spills, which cause a large amount of oil to enter the soil and cause environmental pollution. In addition, with the rapid development of the modern economy, human activities have caused Heavy metals such as cadmium, lead, zinc and chromium are continuously released into the environment and accumulate in the soil. Compared with petroleum pollutants, heavy metals in the soil are more difficult to deal with. Heavy metal ions will affect the growth of plants and cause the overall growth of plants to change. Poor, discolored and deformed leaves, deformed fruits, short growth of aboveground parts, poor root development, and finally t...

Claims

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Application Information

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IPC IPC(8): C08B37/00C09K17/18B09C1/08B09C1/00
CPCC08B37/003C09K17/18B09C1/08B09C1/00
Inventor 曹叶黄云洁
Owner 江苏暨之阳环保科技有限公司