Green corrosion inhibitor composition for inhibiting corrosion in steel in harsh environment, comprises munj grass extract, where, munj grass extract results in formation of cathodic passive film over exposed surface of steel
	KALIA A; UPADHYAY S M; SAHIL K; ATAL S; KUMAR S; CHAUDHARY S; KUMAR V; DWIVEDI D
	2024-11-22
专利权人	RAJIV GANDHI PETROLEUM TECHNOLOGY INST (RAJI-Non-standard)
申请日期	2024-11-22
专利号	IN202411091075-A
成果简介	NOVELTY - The green corrosion inhibitor composition comprises munj grass extract in a concentration of 1-5 % v/v, where, the munj grass extract results in the formation of cathodic passive film over the exposed surface of steel. USE - Green corrosion inhibitor composition used for preventing inhibiting corrosion in steel in harsh environment (claimed), i.e., method to inhibit corrosion of a steel surface. ADVANTAGE - The green corrosion inhibitor composition inhibits corrosion in steel with an inhibition efficiency of 86-90 %. The green corrosion inhibitor composition with and without sodium hydroxide exhibits a corrosion inhibition efficiency of 86 % and 90 %, when applied over the DSS2205, where the corrosion rate is tested with 3.5 % brine solution. The green corrosion inhibitor composition exhibits a corrosion inhibition efficiency of 90.67 %, when applied over the DSS2205, where the corrosion rate is tested with 3.5 % brine and CO2solution. The green corrosion inhibitor composition exhibits a corrosion inhibition efficiency of 87 %, when applied over the DSS2205, where the corrosion rate is tested with 15 % hydrochloric acid (HCl) solution. The inhibitor is eco-friendly, nontoxic in nature, and cost-effective. The green corrosion inhibitor is easily available, and it will help in the upliftment of employment in the nearby areas where it is available. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) a method of preparing the green corrosion inhibitor composition, which involves providing dried barks of munj, adding dried barks of munj to a solution comprising NaOH, refluxing the solution for 3 hours (h) at 100-150 °C to obtain the raw munj extract, and cooling the raw munj extract for 8 h to attain room temperature followed by filtering the solution to obtain the green corrosion inhibitor composition; and (2) a method of preventing inhibiting corrosion in steel in harsh environment, which involves coating the steel with the green corrosion inhibitor composition.
IPC 分类号	C09K-008/54 ; C23F-011/04 ; C23F-011/10 ; C23F-011/14 ; C23F-011/173
国家	印度
专业领域	材料科学
语种	英语
成果类型	专利
文献类型	科技成果
条目标识符	http://119.78.100.226:8889/handle/3KE4DYBR/14412
专题	中国科学院新疆生态与地理研究所
作者单位	RAJIV GANDHI PETROLEUM TECHNOLOGY INST (RAJI-Non-standard)
推荐引用方式 GB/T 7714	KALIA A,UPADHYAY S M,SAHIL K,et al. Green corrosion inhibitor composition for inhibiting corrosion in steel in harsh environment, comprises munj grass extract, where, munj grass extract results in formation of cathodic passive film over exposed surface of steel. IN202411091075-A[P]. 2024.

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