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Method for treating waste water generated in glyphosate production process

A treatment method, glyphosate technology, which is applied in the treatment of industrial wastewater and the field of wastewater treatment, can solve the problems of secondary pollution, low investment and operation costs, etc., and achieve less loss, low investment and operation costs, and convenient operation Effect

Active Publication Date: 2016-09-21
福华通达化学股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention aims to solve the problem of secondary pollution caused by the homogeneous catalytic treatment of glyphosate mother liquor in the prior art, and provides a treatment method for waste water produced in the process of glyphosate production. Oxidation treatment of glyphosate wastewater, this method has high COD removal rate, high organic phosphorus conversion rate, is environmentally friendly, does not produce secondary pollution, low investment and operating costs, and is suitable for industrial continuous operation

Method used

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  • Method for treating waste water generated in glyphosate production process
  • Method for treating waste water generated in glyphosate production process

Examples

Experimental program
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Effect test

Embodiment 1

[0040] A treatment method for waste water produced in the production of glyphosate, comprising the following process steps:

[0041] A. Dry-mix the adsorption powder material, modified material and organic binder evenly to obtain a mixture;

[0042] B. Add the required amount of acid solution to the mixture, wet mixing and kneading fully to obtain a kneaded product;

[0043] C. Prepare cylindrical or spherical carrier preforms by kneading the mixture through an extrusion pelletizer or a granulator;

[0044] D, the carrier preform is dried at 80°C and roasted at 500°C to obtain a catalyst carrier;

[0045] E, one or two or more precious metal salts in arbitrary proportions in ruthenium, rhodium and palladium are made into impregnation solution;

[0046] F. Using the impregnation method to load the impregnation solution on the catalyst carrier to obtain a catalyst precursor, dry and reduce the catalyst precursor to obtain a finished catalyst, and then fill the finished catalys...

Embodiment 2

[0049] A treatment method for waste water produced in the production of glyphosate, comprising the following process steps:

[0050] A. Dry-mix the adsorption powder material, modified material and organic binder evenly to obtain a mixture;

[0051] B. Add the required amount of acid solution to the mixture, wet mixing and kneading fully to obtain a kneaded product;

[0052] C. Prepare cylindrical or spherical carrier preforms by kneading the mixture through an extrusion pelletizer or a granulator;

[0053] D, the carrier preform is dried at 120°C and calcined at 800°C to obtain a catalyst carrier;

[0054] E, one or two or more precious metal salts in arbitrary proportions in ruthenium, rhodium and palladium are made into impregnation solution;

[0055] F. Using the impregnation method to load the impregnation solution on the catalyst carrier to obtain a catalyst precursor, dry and reduce the catalyst precursor to obtain a finished catalyst, and then fill the finished catal...

Embodiment 3

[0058] A treatment method for waste water produced in the production of glyphosate, comprising the following process steps:

[0059] A. Dry-mix the adsorption powder material, modified material and organic binder evenly to obtain a mixture;

[0060] B. Add the required amount of acid solution to the mixture, wet mixing and kneading fully to obtain a kneaded product;

[0061] C. Prepare cylindrical or spherical carrier preforms by kneading the mixture through an extrusion pelletizer or a granulator;

[0062] D, the carrier preform is dried at 100°C and roasted at 650°C to obtain a catalyst carrier;

[0063] E, one or two or more precious metal salts in arbitrary proportions in ruthenium, rhodium and palladium are made into impregnation solution;

[0064] F. Using the impregnation method to load the impregnation solution on the catalyst carrier to obtain a catalyst precursor, dry and reduce the catalyst precursor to obtain a finished catalyst, and then fill the finished cataly...

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Abstract

The invention relates to a method for treating waste water generated in a glyphosate production process, and belongs to the technical field of waste water treatment. The method comprises the following steps: preparing a catalyst; and treating the waste water generated in the glyphosate production process in a trickle bed reactor by using the catalyst. Glyphosate waste water is treated by heterogeneous catalysis wet oxidation; and in the method, COD removal rate is high, and organophosphorus conversion rate is also high; the method is environmentally friendly; secondary pollution is avoided; investment and running costs are low; and therefore, the method is suitable for industrial continuous running.

Description

technical field [0001] The invention relates to a method for treating industrial waste water, more specifically, the invention relates to a method for treating waste water produced in the process of producing glyphosate, and belongs to the technical field of waste water treatment. Background technique [0002] Glyphosate is an organophosphorus systemic broad-spectrum herbicide developed by Monsanto Corporation of the United States. It is currently the largest pesticide variety in terms of production and consumption in the world, and it is also the fastest growing pesticide variety in the world. There are two main production processes for glyphosate, one is the glycine process, and the other is the iminodiacetic acid (IDA) process. Since glyphosate has a certain solubility in water, a certain amount of glyphosate mother liquor will inevitably be produced. About 5.2 tons of dilute mother liquor is produced per ton of glycine method glyphosate, containing about 1.0% glyphosate...

Claims

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Application Information

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IPC IPC(8): C02F1/72B01J23/46B01J23/44C02F101/36
CPCB01J23/44B01J23/462B01J23/464C02F1/725C02F2103/36
Inventor 吴狄峰王文李丹丹刘修兵宋云钊张强王蕾张华
Owner 福华通达化学股份公司
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