Works by Keisuke Ohto

Results: 74

Size-dependent separation of graphene oxide by deformation of packed-gel in a chromatographic column.

Published in:

Separation Science & Technology, 2020, v. 55, n. 7, p. 1356, doi. 10.1080/01496395.2019.1586726

By:

Takaoka, Yuji;
Esaki, Shohei;
Sakaguchi, Koichi;
Fujisawa, Tomotsumi;
Unno, Masashi;
Morisada, Shintaro;
Ohto, Keisuke;
Kawakita, Hidetaka

Publication type:

Article

Droplet-based microreactor system for stepwise recovery of precious metal ions from real metal waste with calix[4]arene derivatives.

Published in:

Separation Science & Technology, 2018, v. 53, n. 8, p. 1261, doi. 10.1080/01496395.2017.1366518

By:

Sathuluri, Ramachandra Rao;
Kurniawan, Yehezkiel Steven;
Kim, Jee Young;
Maeki, Masatoshi;
Iwasaki, Wataru;
Morisada, Shintaro;
Kawakita, Hidetaka;
Miyazaki, Masaya;
Ohto, Keisuke

Publication type:

Article

High extraction ability and selectivity of a tripodal pivalamide derivative for Pt(IV) from hydrochloric acid solutions.

Published in:

Separation Science & Technology, 2016, v. 51, n. 15/16, p. 2700, doi. 10.1080/01496395.2016.1168846

By:

Ueda, Yuki;
Morisada, Shintaro;
Kawakita, Hidetaka;
Ohto, Keisuke

Publication type:

Article

Optimization of an adsorption process for tetrafluoroborate removal by zirconium (IV)-loaded orange waste gel from aqueous solution.

Published in:

Environmental Technology, 2012, v. 33, n. 8, p. 845, doi. 10.1080/09593330.2011.599429

By:

Pangeni, Bimala;
Paudyal, Hari;
Inoue, Katsutoshi;
Kawakita, Hidetaka;
Ohto, Keisuke;
Harada, Hiroyuki;
Biswas, Biplob Kumar;
Alam, Shafiq

Publication type:

Article

Synthesis of a Novel Calix[4]resorcinarene-Chitosan Hybrid.

Published in:

Oriental Journal of Chemistry, 2018, v. 34, n. 1, p. 30, doi. 10.13005/ojc/340103

By:

SANTOSO, PRIO;
ANWAR, CHAIRIL;
JUMINA;
SISWANTA, DWI;
SUHARSO;
KEISUKE OHTO

Publication type:

Article

Extraction of Platinum Hexachloride Anion Using Two Amido Hydrogen Atoms of Secondary Diamides with Different Spacer Length.

Published in:

Chemistry Letters, 2022, v. 51, n. 4, p. 399, doi. 10.1246/cl.210827

By:

Keisuke Ohto;
Taisuke Sato;
Gehui Pang;
Tatsuya Umecky;
Shintaro Morisada;
Hidetaka Kawakita

Publication type:

Article

Recent Advances in Guanidinium Salt Based Receptors and Functionalized Materials for the Recognition of Anions.

Published in:

Chemistry Letters, 2022, v. 51, n. 1, p. 20, doi. 10.1246/cl.210527

By:

Wenzel, Marco;
Steup, Johannes;
Keisuke Ohto;
Weigand, Jan J.

Publication type:

Article

Regioselective Synthesis of Lipophilic Dithiocarbamate Derivatives of Cellulose to Prepare a Novel Solvent Extraction Reagent for Selective Extraction of PGM Ions and Cu(II).

Published in:

Chemistry Letters, 2006, v. 35, n. 9, p. 41, doi. 10.1246/cl.2006.1064

By:

Dhakal, Rabindra Prasad;
Inoue, Katsutoshi;
Ohto, Keisuke;
Baba, Yoshinari

Publication type:

Article

Selective Extraction of Silver Ion with Proton-Switchable Calix[4]arene.

Published in:

Chemistry Letters, 2005, v. 34, n. 1, p. 80, doi. 10.1246/cl.2005.80

By:

Higuchi, Hirotaka;
Matsufuji, Takashi;
Oshima, Tatsuya;
Ohto, Keisuke;
Inoue, Katsutoshi;
Tsend-Ayush, Tsermaa;
Gloe, Karsten

Publication type:

Article

Adsorption of Metal Ions on Gallium(III)-Templated Oxine Type of Chemically Modified Chitosan.

Published in:

Separation Science & Technology, 1996, v. 31, n. 16, p. 2273, doi. 10.1080/01496399608001046

By:

Inoue, Katsutoshi;
Hirakawa, Hiroyuki;
Ishikawa, Yoshio;
Yamaguchi, Tomoo;
Nagata, Junji;
Ohto, Keisuke;
Yoshizuka, Kazuharu

Publication type:

Article

Adsorption of Some Platinum Group Metals on Some Complexane Types of Chemically Modified Chitosan.

Published in:

Separation Science & Technology, 1995, v. 30, n. 12, p. 2477, doi. 10.1080/01496399508021396

By:

Inoue, Katsutoshi;
Yamaguchi, Tomoo;
Iwasaki, Mineto;
Ohto, Keisuke;
Yoshizuka, Kazuharu

Publication type:

Article

Separation of Cobalt and Nickel with Phenylphosphonic Acid Mono-4-tert-octylphenyl Ester by Liquid Surfactant Membranes.

Published in:

Separation Science & Technology, 1995, v. 30, n. 4, p. 637, doi. 10.1080/01496399508225614

By:

Kakoi, Takahiko;
Goto, Masahiro;
Sugimoto, Katsue;
Ohto, Keisuke;
Nakashio, Fumiyuki

Publication type:

Article

Preparation of Metal Immobilized Orange Waste Gel for Arsenic(V) Removal From Water.

Published in:

Aceh International Journal of Science & Technology, 2014, v. 3, n. 2, p. 53, doi. 10.13170/aijst.3.2.1388

By:

Biswas, Biplob Kumar;
Katsutoshi Inoue;
Keisuke Ohto;
Hiroyuki Harada;
Hidetaka Kawakita

Publication type:

Article

Porosity Estimation of a Membrane Filled with Dextran Produced by Immobilized Dextransucrase.

Published in:

AIChE Journal, 2009, v. 55, n. 1, p. 275, doi. 10.1002/aic.11654

By:

Kawakita, Hidetaka;
Hamamoto, Kohshi;
Seto, Hirokazu;
Ohto, Keisuke;
Harada, Hiroyuki;
Inoue, Katsutoshi

Publication type:

Article

Selective recovery of gold(III) using cotton cellulose treated with concentrated sulfuric acid.

Published in:

Cellulose, 2012, v. 19, n. 2, p. 381, doi. 10.1007/s10570-011-9628-6

By:

Pangeni, Bimala;
Paudyal, Hari;
Inoue, Katsutoshi;
Kawakita, Hidetaka;
Ohto, Keisuke;
Alam, Shafiq

Publication type:

Article

Continuous degradation of 1,4-dioxane by the combination of a stripping column and photo-Fenton reaction in a continuous stirred tank reactor.

Published in:

Chemical Engineering Research & Design: Transactions of the Institution of Chemical Engineers Part A, 2023, v. 197, p. 65, doi. 10.1016/j.cherd.2023.07.017

By:

Ito, Kohei;
Matsuoka, Taiki;
Morisada, Shintaro;
Ohto, Keisuke;
Kawakita, Hidetaka;
Watabe, Yoshihide;
Higashi, Kotaro;
Nagamatsu, Shigeki

Publication type:

Article

Allosteric Coextraction of Sodium and Metal Ions with Calix[4]Arene Derivatives 3. Effect of Propyl Groups on Size-Discrimination for the Second Coextracted Ion.

Published in:

Solvent Extraction & Ion Exchange, 2015, v. 33, n. 3, p. 264, doi. 10.1080/07366299.2015.1008282

By:

Sadamatsu, Hirotoshi;
Morisada, Shitaro;
Kawakita, Hidetaka;
Ohto, Keisuke

Publication type:

Article

Extraction of Pb with p - tert -butylcalix [4]-, [5]-, [6]Arene Carboxylic Acid Ligands and their Monomeric Counterpart: A Thermodynamic Approach.

Published in:

Solvent Extraction & Ion Exchange, 2013, v. 31, n. 5, p. 483, doi. 10.1080/07366299.2013.775876

By:

Adhikari, Birendra Babu;
Gurung, Manju;
Kawakita, Hidetaka;
Ohto, Keisuke

Publication type:

Article

Adsorptive Recovery of Palladium(II) and Platinum(IV) on the Chemically Modified-Microalgal Residue.

Published in:

Solvent Extraction & Ion Exchange, 2013, v. 31, n. 3, p. 320, doi. 10.1080/07366299.2012.757092

By:

Khunathai, Kanjana;
Inoue, Katsutoshi;
Ohto, Keisuke;
Kawakita, Hidetaka;
Kurata, Minoru;
Atsumi, Kinya;
Fukuda, Hiroaki;
Alam, Shafiq

Publication type:

Article

Adsorption Behavior of Quaternary Amine Types of Lignophenol Compounds for Some Precious Metals.

Published in:

Solvent Extraction & Ion Exchange, 2010, v. 28, n. 3, p. 403, doi. 10.1080/07366291003683735

By:

Khunathai, Kanjana;
Parajuli, Durga;
Ohto, Keisuke;
Kawakita, Hidetaka;
Harada, Hiroyuki;
Inoue, Katsutoshi;
Hirota, Koichi;
Funaoka, Masamitsu

Publication type:

Article

Adsorption Behavior of Waste Paper Gels Chemically Modified with Functional Groups of Primary Amine and Ethylenediamine for Some Metal Ions.

Published in:

Solvent Extraction & Ion Exchange, 2007, v. 25, n. 6, p. 845, doi. 10.1080/07366290701634024

By:

Kawakita, Hidetaka;
Inoue, Katsutoshi;
Ohto, Keisuke;
Shimada, Satomi;
Itayama, Kyoko

Publication type:

Article

Solvent Extraction of Some Metal Ions with Lipophilic Chitin and Chitosan.

Published in:

Solvent Extraction & Ion Exchange, 2005, v. 23, n. 4, p. 529, doi. 10.1081/SEI-200068523

By:

Dhakal, Rabindra Prasad;
Inoue, Katsutoshi;
Yoshizuka, Kazuharu;
Ohto, Keisuke;
Yamada, Mariko;
Seki, Sumito

Publication type:

Article

SELECTIVE ADSORPTION OF LEAD ION ON CALIX[4]ARENE CARBOXYLATE RESIN SUPPORTED BY POLYALLYLAMINE.

Published in:

Solvent Extraction & Ion Exchange, 2001, v. 19, n. 4, p. 725, doi. 10.1081/SEI-100103817

By:

Ohto, Keisuke;
Tanaka, Yuki;
Yano, Masayuki;
Shinohara, Takaaki;
Murakami, Emi;
Inoue, Katsutoshi

Publication type:

Article

SOLUBILITY IN ORGANIC DILUENTS AND EXTRACTION BEHAVIOR OF CALIX[4]ARENE CARBOXYLATES WITH DIFFERENT ALKYL CHAINS.

Published in:

Solvent Extraction & Ion Exchange, 1999, v. 17, n. 5, p. 1309, doi. 10.1080/07366299908934650

By:

OHTO, Keisuke;
TANAKA, Hiroe;
ISHIBASHI, Hideaki;
INOUE, Katsutoshi

Publication type:

Article

Solvent Extraction of Precious Metals with an Organoaminophosphonate.

Published in:

Solvent Extraction & Ion Exchange, 1997, v. 15, n. 1, p. 115, doi. 10.1080/07366299708934469

By:

Ohto, Keisuke;
Nagata, Junji;
Honda, Seiji;
Yoshizuka, Kazuharu;
Inoue, Katsutoshi;
Baba, Yoshinari

Publication type:

Article

EXTRACTION BEHAVIOR OF COPPER(II) ION BY CALIXARENE CARBOXYLATE DERIVATIVES PREORGANIZED BY SODIUM ION.

Published in:

Solvent Extraction & Ion Exchange, 1996, v. 14, n. 3, p. 459, doi. 10.1080/07366299608918350

By:

OHTO, Keisuke;
SHIRATSUCHI, Koji;
INOUE, Katsutoshi;
GOTO, Masahiro;
NAKASHIO, Fumiyuki;
SHINKAI, Seiji;
NAGASAKI, Takeshi

Publication type:

Article

Hydrometallurgical Recovery of Precious Metals and Removal of Hazardous Metals Using Persimmon Tannin and Persimmon Wastes.

Published in:

Metals (2075-4701), 2015, v. 5, n. 4, p. 1921, doi. 10.3390/met5041921

By:

Katsutoshi Inoue;
Manju Gurung;
Ying Xiong;
Hidetaka Kawakita;
Keisuke Ohto;
Shafiq Alam

Publication type:

Article

Research on Hydrometallurgical Separation Technology.

Published in:

Separations (2297-8739), 2022, v. 9, n. 10, p. N.PAG, doi. 10.3390/separations9100299

By:

Ohto, Keisuke

Publication type:

Article

Separation of Microalgae by a Dynamic Bed of Magnetite-Containing Gel in the Application of a Magnetic Field.

Published in:

Separations (2297-8739), 2022, v. 9, n. 5, p. 120, doi. 10.3390/separations9050120

By:

Washino, Takehiro;
Demura, Mikihide;
Morisada, Shintaro;
Ohto, Keisuke;
Kawakita, Hidetaka

Publication type:

Article

Comparative Extraction of Aluminum Group Metals Using Acetic Acid Derivatives with Three Different-Sized Frameworks for Coordination.

Published in:

Separations (2297-8739), 2021, v. 8, n. 11, p. 1, doi. 10.3390/separations8110211

By:

Keisuke Ohto;
Nako Fuchiwaki;
Hiroaki Furugou;
Shintaro Morisada;
Hidetaka Kawakita;
Wenzel, Marco;
Weigand, Jan J.

Publication type:

Article

Selective Extraction of Platinum(IV) from the Simulated Secondary Resources Using Simple Secondary Amide and Urea Extractants.

Published in:

Separations (2297-8739), 2021, v. 8, n. 9, p. 1, doi. 10.3390/separations8090139

By:

Yuki Ueda;
Shintaro Morisada;
Hidetaka Kawakita;
Keisuke Ohto

Publication type:

Article

Adsorptive Removal of Strontium from Water by using Chemically Modified Orange Juice Residue.

Published in:

Separation Science & Technology, 2014, v. 49, n. 8, p. 1244, doi. 10.1080/01496395.2013.877032

By:

Paudyal, Hari;
Pangeni, Bimala;
Inoue, Katsutoshi;
Ohto, Keisuke;
Kawakita, Hidetaka;
Ghimire, Kedar Nath;
Harada, Hiroyuki;
Alam, Shafiq

Publication type:

Article

Selective Extraction of Precious Metal Ions with Novel Trident Molecules Containing Pyridyl Groups.

Published in:

Separation Science & Technology, 2012, v. 47, n. 9, p. 1303, doi. 10.1080/01496395.2012.672534

By:

Yamaguma, Ryoma;
Yamashita, Ayahiro;
Kawakita, Hidetaka;
Miyajima, Tohru;
Takemura, Chiharu;
Ohto, Keisuke;
Iwachido, Naoyuki

Publication type:

Article

Dithiooxamide-Immobilized Microalgal Residue for the Selective Recovery of Pd(II) and Pt(IV).

Published in:

Separation Science & Technology, 2012, v. 47, n. 8, p. 1185, doi. 10.1080/01496395.2011.645384

By:

Khunathai, Kanjana;
Inoue, Katsutoshi;
Ohto, Keisuke;
Kawakita, Hidetaka;
Kurata, Minoru;
Atsumi, Kinya;
Alam, Shafiq

Publication type:

Article

Germanium Recovery using Catechol Complexation and Permeation through an Anion-Exchange Membrane.

Published in:

Separation Science & Technology, 2012, v. 47, n. 1, p. 62, doi. 10.1080/01496395.2011.613440

By:

Nozoe, Atsunori;
Ohto, Keisuke;
Kawakita, Hidetaka

Publication type:

Article

Adsorption Behavior of Fluoride Ions on Zirconium(IV)-Loaded Orange Waste Gel from Aqueous Solution.

Published in:

Separation Science & Technology, 2012, v. 47, n. 1, p. 96, doi. 10.1080/01496395.2011.607204

By:

Paudyal, Hari;
Pangeni, Bimala;
Inoue, Katsutoshi;
Matsueda, Miyuki;
Suzuki, Ryosuke;
Kawakita, Hidetaka;
Ohto, Keisuke;
Biswas, Biplob Kumar;
Alam, Shafiq

Publication type:

Article

Quaternary Amine Modified Persimmon Tannin Gel: An Efficient Adsorbent for the Recovery of Precious Metals from Hydrochloric Acid Media.

Published in:

Separation Science & Technology, 2011, v. 46, n. 14, p. 2250, doi. 10.1080/01496395.2011.594698

By:

Gurung, Manju;
Adhikari, Birendra Babu;
Khunathai, Kanjana;
Kawakita, Hidetaka;
Ohto, Keisuke;
Harada, Hiroyuki;
Inoue, Katsutoshi

Publication type:

Article

Selective Gold Recovery Using Orange Waste.

Published in:

Separation Science & Technology, 2009, v. 44, n. 12, p. 2797, doi. 10.1080/01496390903014615

By:

Kawakita, Hidetaka;
Abe, Minoru;
Inoue, Jun-Ichi;
Ohto, Keisuke;
Harada, Hiroyuki;
Inoue, Katsutoshi

Publication type:

Article

Recovery of Gold from Hydrochloric Acid by using Lemon Peel Gel.

Published in:

Separation Science & Technology, 2008, v. 43, n. 9/10, p. 2363, doi. 10.1080/01496390802148472

By:

Parajuli, Durga;
Kawakita, Hidetaka;
Kajiyama, Kumiko;
Ohto, Keisuke;
Harada, Hiroyuki;
Inoue, Katstutoshi

Publication type:

Article

Recovery of Gold from Hydrochloric Acid by means of Selective Coagulation with Persimmon Extract.

Published in:

Separation Science & Technology, 2008, v. 43, n. 9/10, p. 2375, doi. 10.1080/01496390802151716

By:

Kawakita, Hidetaka;
Yamauchi, Rie;
Parajuli, Durga;
Ohto, Keisuke;
Harada, Hiroyuki;
Inoue, Katsutoshi

Publication type:

Article

Effective Removal of Arsenic with Lanthanum(III)- and Cerium(III)-loaded Orange Waste Gels.

Published in:

Separation Science & Technology, 2008, v. 43, n. 8, p. 2144, doi. 10.1080/01496390802064075

By:

Biswas, Biplob Kumar;
Inoue, Katsutoshi;
Ghimire, Kedar Nath;
Kawakita, Hidetaka;
Ohto, Keisuke;
Harada, Hiroyuki

Publication type:

Article

Adsorptive Separation of Metal Ions onto Phosphorylated Orange Waste.

Published in:

Separation Science & Technology, 2008, v. 43, n. 2, p. 362, doi. 10.1080/01496390701784112

By:

Ghimire, Kedar Nath;
Inoue, Jun-Ichi;
Inoue, Katsutoshi;
Kawakita, Hidetaka;
Ohto, Keisuke

Publication type:

Article

Adsorptive Separation of Metallic Pollutants onto Waste Seaweeds, Porphyra Yezoensis and Ulva Japonica.

Published in:

Separation Science & Technology, 2007, v. 42, n. 9, p. 2003, doi. 10.1080/15363830701313461

By:

Ghimire, Kedar Nath;
Inoue, Katsutoshi;
Ohto, Keisuke;
Hayashida, Takehiro

Publication type:

Article

Adsorption Behavior of Iminodiacetic Acid Type of Chelating Gel Prepared from Waste Paper.

Published in:

Separation Science & Technology, 2007, v. 42, n. 3, p. 579, doi. 10.1080/01496390601120599

By:

Adhikari, Chaitanya Raj;
Parajuli, Durga;
Kawakita, Hidetaka;
Inoue, Katsutoshi;
Ohto, Keisuke;
Fujiwara, Daigo

Publication type:

Article

Adsorption behavior of lead ion on calix[4]arene tetracarboxylic acid impregnated resin.

Published in:

Separation Science & Technology, 2002, v. 37, n. 8, p. 1943, doi. 10.1081/SS-120003053

By:

Ohto, Keisuke;
Inoue, Sonki;
Eguchi, Naoto;
Shinohara, Takaaki;
Inoue, Katsutoshi

Publication type:

Article

Rare Earth Metal Extraction by Liquid Surfactant Membranes Containing a Calixarene Carboxylate Derivative: Permeation Acceleration Effect of Sodium Ions.

Published in:

Separation Science & Technology, 1998, v. 33, n. 13, p. 1905, doi. 10.1080/01496399808545036

By:

Oshima, Tatsuya;
Kakoi, Takahiko;
Kubota, Fikiko;
Ohto, Keisuke;
Goto, Masahiro;
Nakashio, Fumiyuki

Publication type:

Article

Synthesis of a Novel Dibenzylamide Derivative of p-tert-Octylcalix[4]arene and its Extraction Properties Towards Noble Metal Ions.

Published in:

Australian Journal of Chemistry, 2017, v. 70, n. 5, p. 450, doi. 10.1071/CH16180

By:

Jee Young Kim;
Yoga Priastomo;
Shintaro Morisada;
Hidetaka Kawakita;
Keisuke Ohto;
Yang Kim

Publication type:

Article

Preliminary Investigation of Organocatalyst Activity Based on C‐Arylcalix[4]‐2‐Methylresorcinarene Sulfonic Acid Materials for Biodiesel Production.

Published in:

Bulletin of the Korean Chemical Society, 2021, v. 42, n. 3, p. 403, doi. 10.1002/bkcs.12194

By:

Jumina;
Amalina, Ifa;
Triono, Sugeng;
Kurniawan, Yehezkiel Steven;
Priastomo, Yoga;
Ohto, Keisuke;
Yamin, Bohari M.

Publication type:

Article

Copper-ion adsorption and gold-ion reduction by polyphenols prepared by the enzymatic reaction of horseradish peroxidase.

Published in:

Journal of Applied Polymer Science, 2010, v. 118, n. 1, p. 247, doi. 10.1002/app.32275

By:

Hidetaka Kawakita;
Sachiko Nakano;
Kohshi Hamamoto;
Yumi Matsunaga;
Yuko Yoshimura;
Keisuke Ohto;
Katsutoshi Inoue

Publication type:

Article

Dewatering of algal suspension using microfiltration with cross flow in the presence of magnetite as a filter aid.

Published in:

Biotechnology Progress, 2020, v. 36, n. 4, p. 1, doi. 10.1002/btpr.2979

By:

Kitani, Hidemi;
Demura, Mikihide;
Morisada, Shintaro;
Ohto, Keisuke;
Kawakita, Hidetaka

Publication type:

Article