Phosphorus-free composite corrosion and scale inhibitor

Abstract

The invention discloses a phosphorus-free composite corrosion and scale inhibitor and belongs to the field of water treatment. The corrosion and scale inhibitor consists of 20-30 parts of calcium tartrate dehydrate, 10-20 parts of octadecyl glucoside, 8-12 parts of benzotriazole, 3-5 parts of bi(hydroxymethyl) imidazolidinyl urea, 15-20 parts of methyl silanol, 10-15 parts of allantoin, 12-15 parts of hydroxyethyl acrylate / sodium acryloyldimethyl taurate / acrylamide copolymer, 8-10 parts of glyceryl polymethacrylate and 60-70 parts of water. The corrosion and scale inhibitor disclosed by the invention does not contain organic or inorganic phosphorus components, is a composite corrosion and scale inhibitor formed by combining a high polymer and an inorganic salt, has the advantages of small amount and harmlessness to the environment, human body and crops, is an environment-friendly corrosion and scale inhibitor and is suitable for industrialized application.

Description

technical field

[0001] The invention belongs to the field of water treatment, and more specifically relates to a phosphorus-free composite corrosion and scale inhibitor. Background technique

[0002] my country is a country seriously short of water resources. There are 18 provinces, municipalities and autonomous regions whose per capita water resources are lower than the 2000 m per capita water resources considered by the United Nations Sustainable Development Commission. 3 , less than 1000 m in 10 provinces, municipalities and autonomous regions 3 The minimum survival line, the serious shortage of water resources will definitely affect the normal production and life, affect the economic development, circulating cooling water is a large industrial water. Due to the increasing shortage of fresh water resources, industrial cooling water treatment agents are getting more and more attention. Organic phosphonic acid is a type of water treatment agent widely used at present. It ...