Preparation method for novel heavy metal capturing agent and special apparatus used therein

Abstract

The invention specifically relates to a preparation method for a novel heavy metal capturing agent and a special apparatus used therein, belonging to the field of preparation of heavy metal capturing agents. The bottom of a constant-temperature water-bath beaker of the apparatus is arranged on an electromagnetic stirring heater; a constant-temperature water bath is arranged in the constant-temperature water-bath beaker; a three-neck flask is arranged in the constant-temperature water bath and provided with reaction liquid; a thermometer is inserted into the reaction liquid in the three-neck flask; and the inner bottom of the three-neck flask is provided with stirring magnetic sheets. The preparation method for the heavy metal capturing agent is implemented in a heatable electromagnetic stirrer, and a reaction is carried out in a water bath with a constant temperature of 30 DEG C for 2 h. Verification is carried out a plurality of time so as to obtain a more reasonable concentration ratio of substances and a more reasonable reaction temperature; and it is finally determined that a mol ratio of hydrazine hydrate to carbon disulfide is about 1: 1, a volume ratio of carbon disulfide to an organic solvent is 2: 3, and reaction temperature is 30 DEG C. The preparation method is simple; product yield can reach 85 to 90%; and yield is high.

Description

technical field [0001] The invention relates to the field of preparation of a heavy metal scavenger, in particular to a preparation method and a special device for a novel heavy metal scavenger. Background technique [0002] The rapid development of industrial science and technology is a double-edged sword. Since the 20th century, the rapid development of science and technology has promoted economic development and improved human living standards, but at the same time we have paid a heavy price. Due to the discharge of industrial "three wastes", sewage irrigation, the use of pesticides, chemical fertilizers, etc., and the development of mining, the pollution of the environment is becoming more and more serious, and the pollution containing heavy metal ions is also increasing. Heavy metal pollution refers to environmental pollution caused by heavy metals or their compounds, mainly caused by human factors such as mining, waste gas discharge, sewage irrigation, and the use of p...

AI Technical Summary

Problems solved by technology

However, in the production process, many sewage source industries have added heavy metal complexing agents to the sewage treatment. The traditional precipitation method is used to treat sewage, and the treatment effect is often unsatisfactory. The treated sewage still cannot meet the discharge standards.

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