Water-soluble anthranilic acid polymer carbon steel acid cleaning inhibitor and application thereof

An anthranilic acid and pickling corrosion inhibitor technology, applied in the field of water-soluble anthranilic acid polymer carbon steel pickling corrosion inhibitor, can solve the problems of toxic side effects, lack of market competitiveness, etc., and achieve a sustainable effect Strong ability, good application prospect, simple effect of synthesis
CN101914775AInactive Publication Date: 2010-12-15QINGDAO UNIV
3 Cites 7 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
QINGDAO UNIV
Publication Date
2010-12-15
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention provides an acid cleaning inhibitor and application thereof, in particular an anthranilic acid polymer carbon steel acid cleaning inhibitor for preventing unnecessary corrosion and acid liquor consumption of the carbon steel and products thereof in the acid cleaning process, and application thereof. The inhibitor is prepared from anthranilic acid and a surfactant serving as raw materials through ammonium persulfate oxidizing reaction under a certain condition. The application is to soak and clean the carbon steel by using cleaning solution added with the inhibitor, wherein the cleaning solution is hydrochloric acid solution with the concentration of 1mol / L; and each liter of the acid liquor is added with 0.05 to 1 percent of the acid cleaning inhibitor for soaking the carbon steel for 5 hours at room temperature. The inhibitor has the advantages of no toxin, no harm, easy water solubility, high inhibition efficiency, and the like; and the anthranilic acid polymer carbon steel acid cleaning inhibitor can prevent excessive corrosion of base metal and excessive consumption of the acid liquor in the acid cleaning process by cleaning the carbon steel and the surfaces of the products thereof, and also has the advantages of low consumption, high efficiency and strong sustained action capacity.
Need to check novelty before this filing date? Find Prior Art

Description

1. Technical field

[0001] The invention relates to the technical field of corrosion inhibitor production, in particular to a water-soluble anthranilic acid polymer carbon steel pickling used to prevent unnecessary corrosion and acid consumption of carbon steel and its products in the pickling process Corrosion inhibitors and their applications. 2. Background technology

[0002] Pickling is a convenient, efficient and low-cost method widely used in various industrial sectors of society to remove scale and corrosion products on metal surfaces and restore the functions of heat exchange and cooling equipment. It can not only reduce fuel consumption, fuel exhaust gas and air pollution caused by dirt in the pipeline, protect the environment, but also eliminate a series of safety hazards, such as: in the water cycle of boiler thermal equipment, impurities in water and steam are mixed and attached Scale, etc. are formed on the surface of the metal, and these dirt will deteriorate t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More