Cleaning passivator and preparation method

Abstract

The invention provides a cleaning passivator. The cleaning passivator is prepared from, by weight, 1-30 parts of heteropolyacid, 1-10 parts of organic acid sodium salt, 10-40 parts of low mass molecule alcohol, 1-10 parts of benzotriazole, 5-20 parts of urotropin, 1-5 parts of a nitrogen-containing heterocyclic compound, 1-10 parts of sodium carbonate peroxide, 1-30 parts of nitrite and the balance deionized water. A preparation method of the cleaning passivator comprises the steps that the raw materials are ground and then are mixed and stirred to be uniform. The cleaning passivator has no corrosion and swelling functions on stainless steel and high polymer materials, the protein flocculation cleaning effect is quite remarkable, and the problems brought by high-temperature concentrated alkaline cleaning can be solved well; and in the cleaning process, passivation and degreasing on the stainless steel surfaces are completed, potassium ferricyanide-nitric acid is used for detecting the wall face passivation film quality, the detection standard is met, and therefore one reagent has multiple functions, and cost is reduced for enterprises.

Description

technical field [0001] The invention relates to the technical field of fine chemicals, in particular to a cleaning passivator and a preparation method. Background technique [0002] In the process of biological fermentation, microorganisms use nitrogen, phosphorus and other substances to metabolize, produce target products, and produce a large amount of useless protein at the same time. Although the current rapid development of gene technology, the selectivity and yield of microorganisms used in the fermentation industry for target products have been greatly improved, and the useless substances (proteins) produced in the metabolic process are becoming less and less, but due to the relative selection of the metabolic process It is impossible to completely control the production of useless proteins. [0003] The above-mentioned proteins and bacteria will adhere to the wall of the fermenter, the wall of the inner heat exchanger, the stirring blade or the shaft after the fermen...

AI Technical Summary

Problems solved by technology

[0014] The invention provides a cleaning passivator, which has no corrosion and swelling effect on stainless steel and polymer materials, and has a very obvious protein flocculation cleaning effect, which can very well solve the problems caused by high-temperature concentrated alkali cleaning; In the process, the passivation and degreasing of the surface of the stainless steel are completed, and the quality of the passivation film on the wall is detected by using potassium ferricyanide-nitric acid, which meets the detection standards, thus achieving multiple functions with one reagent and saving costs for the enterprise