Production technology of 2,4,6-tri-(6-aminocaproic acid)-1,3,5-triazine

Abstract

The invention provides a production technology of 2,4,6-tri-(6-aminocaproic acid)-1,3,5-triazine. The production technology includes the following steps of 1, hydrolysis reaction of caprolactam; 2, condensation reaction of the hydrolysate and cyanuric chloride; 3, acidized crystallization; 4, pre-washing and pulping. According to the production technology, in the reaction aspect, the hydrolysis time of caprolactam and the condensation time of the hydrolysate and cyanuric chloride in a traditional production technology are greatly shortened, the dissolution heat generated in the operation process is sufficiently used, the energy consumption of steam is saved, and heating time is also saved; in the post-processing aspect, double-water-tank circulating top washing is adopted, the amount of top washing water and top-washing time are greatly saved, the top washing water and pulping water are shared, and the amount of waste water is reduced by about 60%.

Description

technical field [0001] The invention belongs to the technical field of organic chemistry and the field of chemical production, in particular to a production process of 2,4,6-tris(aminocaproic acid)-1,3,5-triazine used in water-based antirust agents . technical background [0002] 2,4,6-tris(aminocaproic acid)-1,3,5-triazine water-based rust inhibitor 190 is a water-based corrosion inhibitor and rust inhibitor with excellent performance, which can be used to protect various Metal rusted. The product has excellent hard water stability; extremely low foaming tendency, excellent air release performance and extremely low toxicity, suitable for most water-based lubricating and cleaning functional fluids, a class of superior performance, green and environmentally friendly ash-free water soluble Corrosion and rust inhibitors. At present, the market demand for this product is increasing year by year, but its production process has not been greatly changed and optimized because of ...

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Problems solved by technology

At present, the market demand for this product is increasing year by year, but its production process has not been greatly changed and optimized because of its simplicity. The main defects are as follows: 1) The alkali used in the caprolactam hydrolysis reaction is an ion membrane liquid with a mass fraction of 32%. For lye alkali, it takes a long time to heat up to 102°C, and the reaction time is as long as 12h-13h; 2) The polymerization reaction time is as long as 6h; 3) When the plate and frame are top washed, they are directly washed with tap water, without circulation, resulting in water Great amount

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