Long-Chain Alkyl Esters of <i>O,O</i>-Dialkyl Dithiophosphoric and Thionophosphoric Acids Prepared on the Basis of Red Phosphorus, Elemental Sulfur, Alcohols, and Industrial Fractions of Higher Monoolefins

Низамов, И. С.; Шамилов, Р. Р.; Salikhov, Ramazan Z.; Nizamov, I. S.; Khodyrev, Yuriy P.; Батыева, Э. С.

doi:10.1080/10426507.2014.951999

Cited by 4 publications

(1 citation statement)

References 19 publications

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“…Inhibitors used in oil fields are mainly composed of compounds containing quartenized nitrogen atoms, amides, amines, imidazolines, long-chain carboxylic acids, ethoxylates, multifunctional low molecular weight polymers, sulfonates, phosphates and their esters, pyridine salts [5]. Phosphates of metals [6], various polymeric ethers of phosphates [7], as well as ethers of phenols, ethoxylated, propoxylated, butoxylated alcohols [8][9][10], phosphonic acids and their salts [11], thio-and dithiophosphonates [12] are the most common among organophosphate corrosion inhibitors. Often, surfactants are used as inhibitors, the amphiphilic nature of the molecules of which promotes adsorption at metal / metal-oxide-water interfaces and creates a barrier that can inhibit corrosion [13].…”

Section: Introductionmentioning

confidence: 99%

New Sintanyl Phosphonates for Protection of Oil and Gas Pipelines from Steel Corrosion

Nikitin¹,

Shumatbaev²,

Terenzhev³

et al. 2019

Civ Eng J

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Many corrosion inhibitors are economically disadvantageous or toxic to the environment. Additionally, there are certain requirements for corrosion inhibitors. Therefore, the development of new corrosion inhibitors is one of the important problems in the oil-producing and oil-refining industry. The purpose of this work is the synthesis of new corrosion inhibitors with high inhibitory activity, the establishment of the structure of the compounds obtained and the determination of the anti-corrosion effect with respect to aggressive media. This paper presents the results of research on the development of new iron corrosion inhibitors. New α-aminophosphonates were synthesized based on the Kabachnik-Fields reaction. Formalin, morpholine, phosphite containing residues of industrial non-ionic surfactants - syntanols as radicals were used as a raw material. The compounds obtained were isolated in high yield. The structure of the compounds obtained is established by modern methods of physico-chemical analysis. The protective effect of the compounds obtained was studied by a gravimetric method for 6, 24, 72 hour exposure and an inhibitor concentration of 10, 25, 50, 100 ppm. As an aggressive medium, a highly mineralized medium containing СО2 and Н2S was used in simulated formation water. The dynamics of changes in the protective effect of the resulting aminophosphonate from time to time, at dosages of 2.5-100 ppm, were studied using electrochemical analysis methods. The protective effect of syntanyl-O-ethyl- (N-morpholinyl) methylphosphonate obtained at 25 ppm and a shutter speed of 6 hours is 73-82%. The article shows that with increasing concentration, an increase in the protective effect is observed. The greatest protective (89,6) effect showed O-2- [2- [2- [2- [2- [2- [2- [2- [2- [2- (dodecyloxy) ethoxy] ethoxy] ethoxy] ethoxy ] ethoxy] ethoxy] ethoxy] ethoxy] ethoxy] ethyl-O-ethyl- (N-morpholinyl) methylphosphone at a dosage of 100 ppm.

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Section: Introductionmentioning

confidence: 99%

New Sintanyl Phosphonates for Protection of Oil and Gas Pipelines from Steel Corrosion

Nikitin¹,

Shumatbaev²,

Terenzhev³

et al. 2019

Civ Eng J

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Recent Advances in Organic Reactions Involving Elemental Sulfur

2017

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Elemental sulfur hasb een known since Antiquity and found widespread applications in the preparation of black gunpowder,t he synthesis of sulfuric acid as well as other sulfur-containing compounds,a nd the vulcanization of rubber.O ver the last several years,wehave come to better understand its properties andd iscover more applications of elementals ulfuri ns ynthetic organic chemistry.T his review summarizes the advancesf rom 2000i nt he construction of organic molecules using elemental sulfur via sulfuration, oxidation, reduction and redox condensation processes.

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42.16.4 Phosphoric Acid and Derivatives (Update 2021)

Kashemirov¹,

Błażewska²,

Justyna³

et al. 2021

Knowledge Updates 2021/1

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The methods presented in this update are mainly based on those reported since the original Science of Synthesis chapter on this topic (Section 42.16), which was published in 2009. The phosphoric acid derivatives covered include P=O compounds (e.g., phosphates, S-alkyl phosphorothioates, diphosphates, and triphosphates) and P=S compounds (O-alkyl phosphorothioates, etc.). Emphasis is placed on the synthesis of biologically relevant compounds, particularly nucleotides, oligonucleotides, phosphorylated sugars, and lipids.

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Long-Chain Alkyl Esters of O,O-Dialkyl Dithiophosphoric and Thionophosphoric Acids Prepared on the Basis of Red Phosphorus, Elemental Sulfur, Alcohols, and Industrial Fractions of Higher Monoolefins

Cited by 4 publications

References 19 publications

New Sintanyl Phosphonates for Protection of Oil and Gas Pipelines from Steel Corrosion

New Sintanyl Phosphonates for Protection of Oil and Gas Pipelines from Steel Corrosion

Recent Advances in Organic Reactions Involving Elemental Sulfur

42.16.4 Phosphoric Acid and Derivatives (Update 2021)

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