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The reactivity of benzotriazole with copper on a gold surface has been studied by a combination of surface sensitive methods with support from DFT (density functional theory) calculations. For some time benzotriazole has been known to enhance ChlorideAssisted Corrosion of Copper and Protection by ,The structure and composition of copper surfaces in aqueous solutions of benzotriazole (BTAH) and NaCl was investigated by sum frequency vibrational Effect of benzotriazole on corrosion inhibition of copper ,A purpose made rotating cage (RC), see Fig. 2, was used to investigate the flow effect on the corrosion inhibitions of benzotriazole on copper surface.The rotating
The adsorption of benzotriazole and Cl on low Miller index surfaces of copper and undercoordinated defects thereon was characterized using density Mineralogical characterization of copper sulfide tailings ,As ore grades constantly decline, more copper tailings, which still contain a considerable amount of unrecovered copper, are expected to be produced as a The use of benzotriazole as a corrosion inhibitor for copper,Abstract. Benzotriazole is a specific corrosion inhibitor for copper and copper alloys. It is now widely used in industry to reduce the corrosion of these alloys under both atmospheric
Keywords: Corrosion inhibitor; surfactants, copper alloys, scaling, sulphuric acid and benzotriazole. 1. INTRODUCTION Copper is broadly used in various industrial Alkylbenzotriazole derivatives as inhibitors of iron and ,Alkyl derivatives of benzotriazole (112 carbon atom long alkyl chain) were tested as inhibitors of pure iron corrosion in sulphuric or hydrochloric acid at 25°C and a1349BenzotriazoleAn effective corrosion inhibitor for ,(2) Benzotriazole and Related Compounds as Corrosion Inhibitors for Copper, J. B. Cotton and I. R. Scholes, Brit. Corros. J., 2 (1), 15 (1967) (3) Improvements in
The corrosion of coppernickel alloy in hydrochloric acid has been investigated at different temperatures, benzotrizole concentrations and corrosive solution Journal of Chinese Society for Corrosion and protection,Abstract. A series of new corrosion inhibitors named 1 (2'alkylsulfanylacetyl)benzotriazole derivatives were synthesized by alkyl sulfhydryls of different lengths, sodium chloroacetate and benzotriazole. The corrosion inhibition effect of benzotriazole derivatives on copper was evaluated in 3.5%NaCl solution by means of weight loss andThe use of benzotriazole as a corrosion inhibitor for copper,Abstract. Benzotriazole is a specific corrosion inhibitor for copper and copper alloys. It is now widely used in industry to reduce the corrosion of these alloys under both atmospheric and immersed conditions. Corrosion of copper may produce a surface stain or tarnish, pitting of surfaces of pipes or promote pitting of other metals, such as
A flotation process in which copper ores or copper converter slags are ground and firstly have added thereto benzotriazole or alkyl benzotriazole as an activator and secondly one or more collectors selected from the group consisting of xanthates, dithiophosphates, thiocarbamate esters, dithiocarbamates, mercaptans and dixanthogens and further, if Copper Corrosion Inhibitors. A review Electrochem. Sci,copper forming complexes with copper ions and prevent forming of Cu chloride and oxychloride complexes. The obtained values of inhibition efficiency are presented in Table 1. Table 1. The results of the study of the efficiency of copper corrosion inhibition by AETD, AETDA and PTAT solution AETD concetration IE (%) references a1349BenzotriazoleAn effective corrosion inhibitor for ,(2) Benzotriazole and Related Compounds as Corrosion Inhibitors for Copper, J. B. Cotton and I. R. Scholes, Brit. Corros. J., 2 (1), 15 (1967) (3) Improvements in or Relating to the Inhibition of Corrosion of Copper and Copper and CopperContaining Alloys, Imperial Chemical Industries Ltd., British Patent 907,794 (October 10, 1962)
The paper is about the froth flotation process and its application. It is a metallurgical process for the extraction of metals in a pure state from their ores: especially for sulfide ores. FrothFlotation behavior and adsorption mechanism of C8chain,摘要： The direct flotation behavior and adsorption mechanism of 2ethyl2hexenoic hydroxamic acid (EHHA) to malachite were investigated by microflotation tests of pure minerals, benchscale flotation tests of sulfideoxide mixed actual copper ore, FTAlkyl mercaptans as collector additives in froth flotation,What is claimed is: 1. A method of beneficiating copper from copperbearing ore by froth flotation, whereby flotation is conducted in the presence of synergistic mixture of a collector blend and a collector additive, said collector being a blend of: (A) about 80% by weight of an alkyl xanthogen alkyl formate of the formula ##STR5## wherein X is a branched or
Copper Oxide Ore Froth Flotationconcentrationline. A flotation process in which copper ores or copper converter slags are ground and firstly have added thereto benzotriazole or alkyl benzotriazole as an activator and secondly one or more collectors selected from the group consisting of xanthates dithiophosphates thiocarbamate esters 双(羧甲基)三硫代碳酸钠在铜钼硫化矿浮选分离中抑制机理,小分子有机抑制剂双(羧甲基)三硫代碳酸钠(DBT)是一种铜钼分离选择性抑制剂。动电位与红外光谱分析结果表明，DBT在黄铜矿表面的吸附强于辉钼矿，X射线光电子能谱进一步证明DBT吸附在黄铜矿表面，抑制剂DBT与在黄铜矿表面的吸附以物理吸附为主。铜钼混合精矿浮选分离试验结果表明，DBT是一种Adsorption and protective behavior of BTAH on the initial ,Benzotriazole (BTAH), one of the most efficient inhibitors for copper, is the most highly stressed subject of numerous scientific studies 13,14,15,16, and its possible inhibition mechanism has
Optimizing the molecular structures of organic solar cell (OSC) materials and boosting the power conversion efficiencies are the eternal theme in the solar energy region. A series of fused benzotriazole (BTA)based A–DA′D–A structures of nonfullerene acceptors (such as Y18) were developed for application in efficient OSCs, in which high quantum efficiencies Inhibition of copper corrosion by 1,2,3benzotriazole: A ,It has been known since 1947 [5] that 1,2,3benzotriazole (BTAH, C 6 H 5 N 3) is an effective corrosion inhibitor for copper and its alloys by preventing undesirable surface reactions. Since then BTAH has been included in a number of patents ( [6], [7] and references therein). BTAH prevents discoloration of copper surfaces under atmospheric The Use of Tecflote Family Collectors in Copper–Nickel ,Hydroxamic collectors are considered as promising collectors of sulfide and mixed ores of nonferrous metals, both independently and jointly with xanthate [14–16].The efficiency of using hydrazides of 2ethylhexanoic and npentanoic acids for flotation of coppernickel ores is shown [17, 18].It is assumed that the presence of
On copper, benzotriazole can build very protective films by a strong triazolic ring–metallic substrate bond. The introduction of an aliphatic chain in the position 5 of the BTA molecule improves their performances by promoting the formation of thicker, more hydrophobic and less defective films [12],[13],[14] .Air‐stable copper derivatives as efficient catalysts for ,Air‐stable copper catalysts supported by bis‐BTP ligands (BTP = N,O‐bidentate benzotriazole phenoxide) were synthesized and structurally characterized.The reactions of Cu(OAc) 2 ·H 2 O with 2.0 molar equivalents of sterically bulky 2‐(2H‐benzotriazol‐2‐yl)‐4,6‐bis(1‐methyl‐1‐phenylethyl)phenol (CMe2Ph BTP ‐H) and The use of benzotriazole as a corrosion inhibitor for copper,Abstract. Benzotriazole is a specific corrosion inhibitor for copper and copper alloys. It is now widely used in industry to reduce the corrosion of these alloys under both atmospheric and immersed conditions. Corrosion of copper may produce a surface stain or tarnish, pitting of surfaces of pipes or promote pitting of other metals, such as
Alkyl derivatives of benzotriazole (112 carbon atom long alkyl chain) were tested as inhibitors of pure iron corrosion in sulphuric or hydrochloric acid at 25°C and pure copper corrosion in acidic sulphate and saline solutions at 30°C. This series of compounds was more efficient in contrasting copper than iron corrosion and, generally, the longer the Alkylbenzotriazole derivatives as inhibitors of iron and ,Alkyl derivatives of benzotriazole (112 carbon atom long alkyl chain) were tested as inhibitors of pure iron corrosion in sulphuric or hydrochloric acid at 25°C and pure copper corrosion inAlkyl Benzotriazole Copper Flotation,Copper Oxide Ore Froth Flotationconcentrationline. A flotation process in which copper ores or copper converter slags are ground and firstly have added thereto benzotriazole or alkyl benzotriazole as an activator and secondly one or more collectors selected from the group consisting of xanthates dithiophosphates thiocarbamate esters
