摘要:
Provide a liquid coolant composition whose base material is a glycol, wherein such liquid coolant composition contains: (a) 0.1 to 8 percent by weight of an aliphatic dicarboxylic acid having 8 to 18 carbon atoms or alkali metal salt thereof; (b) 0.1 to 10 percent by weight of an alkyl benzoic acid having 7 to 18 carbon atoms or alkali metal salt thereof; and (c) 0.1 to 5 percent by weight of an aliphatic monocarboxylic acid having 6 to 18 carbon atoms or salt thereof.
摘要:
A method for inhibiting corrosion comprises the steps of providing a fluid; adding a corrosion inhibitor comprising at least one amphiphilic chemical to the fluid; and monitoring micelles presence in the fluid. A method for determining the amount of corrosion inhibitor that is sufficient to inhibit corrosion, a method for monitoring the activity of an amphiphilic chemical and a system for inhibiting corrosion in a conduit are also disclosed.
摘要:
An antifreeze cooling liquid with a high heat carrying capacity is composed of: at least 33% of monopropylene glycol; at least 2% of a triazole, not more than 1% of biocides, the addition of water to make 100%.
摘要:
Disclosed are corrosion inhibitor compounds and compositions useful in applications relating to the production, transportation, storage, and separation of crude oil and natural gas. Also disclosed are methods of using the compounds and compositions as corrosion inhibitors, particularly in applications relating to the production, transportation, storage, and separation of crude oil and natural gas.
摘要:
A corrosion control system is disclosed including an anionic oxygen inhibitor, a cationic acid inhibitor or dispersant, and a noxious species inhibitor or scavenger for use in a fluid in contact with a metallic surface at low temperature, moderate temperature and especially at high temperature. A drilling fluid, a completion fluid, a production fluid and a geothermal fluid including an effective amount of the corrosion control system is also disclosed as well as methods for making and using same.
摘要:
A corrosion inhibitor composition for use in coating compositions on metal surfaces, or in metal containers, to provide corrosion resistance to said metals. The corrosion inhibitor comprises at least one alkoxylated phosphate ester; and at least one borate ester. The corrosion inhibitor composition optionally comprises at least one inorganic metal salt. There is also provided an end-use coating composition comprising said corrosion inhibitor composition, and a method of providing corrosion resistance to a metal surface by applying said coating composition thereto.
摘要:
Compositions and methods for reducing stress corrosion cracking in steel vessels used for storing and/or transporting ethanol-containing fluids. Additives including oxygen scavengers and film-forming additives can be employed together in such ethanol-containing fluids (e.g., fuel grade ethanol) to mitigate stress corrosion cracking in steel vessels, such as pipelines, storage tanks, rail cars, and/or tanker trucks.
摘要:
The invention relates to compositions containing a basic oil or base oil, 10 to 50 percent by weight of ether pyrrolidone carboxylic acids of formula (1) or the salts thereof of formula (1), wherein R1 represents C8-C30-alkyl, C8-C30-alkenyl, C6-C30-alyl, C7-C30-alkylaryl, M represents hydrogen, alkali metal, alkaline earth metal, or ammonium, X represents C2-C6-alkylene, or a poly(oxyalkylene) group of formula (2), wherein I is a number ranging from 1 to 50, m, n are numbers ranging from 0 to 50 independently of l and independently of one another, R2, R3, and R4 independently represent hydrogen, CH3, or CH2CH3, Y represents C2-C6-alkylene, said compositions further containing a specific amount of a pH regulator/neutralizer such that a 5 percent by weight emulsion of the composition in deionized water has a pH ranging from 7 to 11.
摘要:
A bio-based corrosion inhibitor composition includes a corn stillage product, and may be a substantially water insoluble fraction of corn stillage. The corrosion inhibitor composition is useful in protecting metal articles from corrosion.
摘要:
Compositions and methods of using such compositions for reducing copper ion discharge from aqueous systems is disclosed and claimed. The composition includes a synergistic combination of at least two different benzotriazoles or salts thereof that effectively provides an erosion-resistant barrier on copper-containing surfaces of industrial systems.