Antifoam agent and production technique thereof

Abstract

The invention relates to a defoaming agent and a production process, and the defoaming agent is composed of components with the following parts by weight: 60 parts of dimethyl silicone oil, 15 parts of glyceryl polyether 3050, 15 parts of liquid paraffin and 10 parts of water. The production process comprises the following steps: 10 parts by weight of water is added in a reactor; 60 parts by weight of dimethyl silicone oil is slowly added in the reactor to be stirred at the normal temperature, thus forming emulsion-like solution; 15 parts by weight of glyceryl polyether 3050 is added to be continuously stirred at the normal temperature till the glyceryl polyether 3050 is fully dissolved in the emulsion-like solution; 15 parts by weight of liquid paraffin is further added to be continuously stirred at the normal temperature till the liquid paraffin is fully dissolved in the emulsion-like solution; the low-speed stirring is carried out for 30 minutes, the solution is kept at 18 DEG C to 22 DEG C, and the defoaming agent is prepared by carrying out the reactor for 24 hours. The defoaming agent and the production process have the advantages that: the production process has no waste gas, no waste water and no noise to be discharged to the outside; the product is fully dissolved in the water and non-toxic, thus not producing secondary environmental pollution, the product is used in a big water region, the defoaming speed is fast, the using amount is small and the cost is low.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a defoamer and a manufacturing process thereof. Background technique [0002] Existing defoamers have waste gas, waste water discharge and noise problems in the production process, and the defoaming speed of existing defoamers in waters with large water volume and fast flow velocity is relatively slow, the amount of use is large, and there is drift. Oil phenomenon, high cost and containing APEO (nonylphenol polyoxyethylene ether), OPEO (octylphenol polyoxyethylene ether), DPEO (dodecyl polyoxyethylene ether), DNPEO (dinonylphenol polyoxyethylene ether), DNPEO (dinonylphenol polyoxyethylene ether), Ether), directly endanger the health of human beings, fish and algae, and cause secondary pollution to the environment. Contents of the invention [0003] The purpose of the present invention is to provide a defoamer and its preparation process to overcome the above-menti...

AI Technical Summary

Problems solved by technology

[0002] Existing defoamers have waste gas, waste water discharge and noise problems in the production process, and the defoaming speed of existing defoamers in waters with large water volume and fast flow velocity is relatively slow, the amount of use is large, and there is drift. Oil phenomenon, high cost and containing APEO (nonylphenol polyoxyethylene ether), OPEO (octylphenol polyoxyethylene ether), DPEO (dodecyl polyoxyethylene ether), DNPEO (dinonylphenol polyoxyethylene ether), DNPEO (dinonylphenol polyoxyethylene ether), Ether), directly endangering the health of humans, fish and algae, and causing secondary pollution to the environment