Results 21 to 30 of about 41,300 (233)

A New Multichelating Acid System for High-Temperature Sandstone Reservoirs

Journal of Chemistry, 2015
Sandstone reservoir acidizing is a complex and heterogeneous acid-rock reaction process. If improper acid treatment is implemented, further damage can be induced instead of removing the initial plug, particularly in high-temperature sandstone reservoirs.
Nianyin Li, Qian Zhang, Yongqing Wang, Pingli Liu, Liqiang Zhao   +4 more
doaj   +1 more source

Investigation on the influence of chelating agent on carbon sequestration in cement-based materials

Case Studies in Construction Materials
The incorporation of a chelating agent significantly enhances the mineralization reaction in cement-based materials during carbonation curing, thereby increasing CO₂ sequestration efficiency and contributing to a measurable reduction in net CO₂ emissions.
Wei Du, Sikai Xia, Jianying Yu, Jinhui Li, Weidong Zhang, Qingjun Ding   +5 more
doaj   +1 more source

Evaluation of Barium Sulfate (Barite) Solubility Using Different Chelating Agents at a High Temperature [PDF]

Journal of Petroleum Science and Technology, 2017
Barium sulfate (barite) is one of the widely used weighting materials in the preparation of drilling fluid for deep oil and gas wells. Barite is not soluble in the regular solvents; such as, hydrochloric acid (HCl) and other acids.
BADR BA GERI, Mohamed Mahmoud, Reyad Shawabkeh, Abdulazeez Abdulraheem   +3 more
doaj   +1 more source

Study of Wettability Alteration of Hydrophobic Carbonate Rock by Surfactant-Containing Chelating Agent Solutions

Applied Sciences, 2023
Chelating agents’ application for well stimulation is gaining more and more interest, as they can perform under harsh conditions. However, the mutual influence of surfactants and chelating agents on the wettability alteration of hydrophobic carbonate ...
Timur Ildarovich Yunusov, Lyutsia Faritovna Davletshina, Dmitriy Nikolaevich Klimov, Lyubov Abdulaevna Magadova, Mikhail Alexandrovich Silin   +4 more
doaj   +1 more source

The iron chelating agent, deferoxamine detoxifies Fe(Salen)-induced cytotoxicity

Journal of Pharmacological Sciences, 2017
Iron-salen, i.e., μ-oxo-N,N′-bis(salicylidene)ethylenediamine iron (Fe(Salen)) was a recently identified as a new anti-cancer compound with intrinsic magnetic properties. Chelation therapy has been widely used in management of metallic poisoning, because
Masanari Umemura, Jeong-Hwan Kim, Haruki Aoyama, Yujiro Hoshino, Hidenobu Fukumura, Rina Nakakaji, Itaru Sato, Makoto Ohtake, Taisuke Akimoto, Masatoshi Narikawa, Ryo Tanaka, Takayuki Fujita, Utako Yokoyama, Masataka Taguri, Satoshi Okumura, Motohiko Sato, Haruki Eguchi, Yoshihiro Ishikawa   +17 more
doaj   +1 more source

Recycling iron from pickling sludge to activate peroxydisulfate for the degradation of phenol

Water Science and Technology, 2022
In this work, iron was recovered from a kind of iron-rich pickling sludge by an acid leaching process, and the recycled iron was used as a catalyst to activate peroxydisulfate (PS) for the degradation of phenol.
Shaopeng Yang, Dongzhe Wang, Gang Xue, Li Wang, Xinhui Duan, Cairong Gong   +5 more
doaj   +1 more source

Hands‐on protocol for preparing water‐soluble fractions from agri‐food samples for NMR‐based metabolomics analysis

FEBS Open Bio, EarlyView.
This research protocol outlines a workflow for nuclear magnetic resonance (NMR)‐based metabolomics in the agri‐food sector. Using two case studies—strawberry leaves (solid matrix) and wine (liquid matrix)—it details the procedures for sample preparation, data acquisition, and processing.
Andrea Fernández‐Veloso, Jaime Hiniesta‐Valero, Alejandra Guerra‐Castellano, Miguel A. De la Rosa, Irene Díaz‐Moreno   +4 more
wiley   +1 more source

A chelating agent system for the removal of barium sulfate scale

Journal of Petroleum Exploration and Production Technology, 2020
This study aimed to prepare a chelating agent SA-20 using diethylenetriaminepentaacetic acid (DTPA) and low molecular weight sodium polyacrylate raw material for the removal of barium sulfate (BaSO4) scale. The morphology of the resulting chelating agent
Zhifeng Luo, Nanlin Zhang, Liqiang Zhao, Chunlei Wang, Lin Wu, Pingli Liu, Hongyu Ji   +6 more
doaj   +1 more source

Thunbergia laurifolia Leaf Extract Increased Levels of Antioxidant Enzymes and Protected Human Cell-Lines In Vitro Against Cadmium

Antioxidants, 2020
Thunbergia laurifolia or Rang Jued has been used as an herbal tea and in folk medicine as a detoxifying agent. Cd contamination is globally widespread and a serious public health problem.
Marasri Junsi, Chutha Takahashi Yupanqui, Worapong Usawakesmanee, Alan Slusarenko, Sunisa Siripongvutikorn   +4 more
doaj   +1 more source

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

Advanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner, Julian Burkhart, Kateryna Borysova, Chiara Mazzariol, Klaus Müller‐Buschbaum   +4 more
wiley   +1 more source