Recovery and purification of boron from coal fly ash.
スポンサーリンク
概要
- 論文の詳細を見る
A process has been developed to recover boron from coal fly ash in which boron exists at low concentration in a mixture of high concentration of less desirable species. Of the boron contained in the ash, 72% can be leached with dilute sulfuric acid when the pH of the final pregnant liquor is kept at 7.0, the other undesirable transition metals being left in the residue. The boron is then concentrated using chelating resin with a functional group of glucamic type. Eighty-seven percent of the boron is recovered and is then concentrated to 3.6 g/dm<SUP>3</SUP> with a purity of 98.9 percent. This liquor is further treated to remove impurities by a solvent extraction technique, employing 2-ethyl-1,3-hexanediol as an extractant, and a purified liquor for borax production is obtained.
- The Society of Chemical Engineers, Japanの論文
著者
-
Komasawa Isao
Department Of Chemical Engineering Faculty Of Engineering Science Osaka University
-
Kunugita Eiichi
Department Of Chemical Engineering Osaka University
-
TSUBOI IZUMI
Department of Chemical Engineering, Faculty of Engineering Science, Osaka University
関連論文
- Formation of Reverse Micelles and Extraction of Aluminum and Beryllium by Mixture of Bis(2-Ethylhexyl) Phosphoric Acid and Dinonylnaphthalene Sulfonic Acid
- S-Methylsulfonium Salts Obtained by Desulfurization of Vacuum Gas Oil and Catalytic-Cracked Gasoline as Thermal Latent Polymerization Initiator
- Polymer-Supported Sulfonium Salts Obtained by Desulfurization of Light Oil as Novel Phase Transfer Catalyst
- アルキル化沈澱法による燃料油の新規な脱硫・脱窒素プロセス (特集 分離プロセス開発の展望)
- Oxidative Desulfurization Process for Light Oil Using Titanium Silicate Molecular Sieve Catalysts
- アルキル化沈殿法による燃料油の新規な脱硫・脱窒素プロセス
- TiO_2-Mediated Photocatalytic Desulfurization Process for Light Oils Using an Organic Two-Phase System
- Operability study on a Photochemical Desulfurization Process for Light Oil using an Organic Two-phase Extraction System
- スルフィミド形成反応による軽油の新規な深度脱硫プロセス (特集 環境適応型プロセスの開発)
- 光化学反応と溶媒抽出を複合した燃料油の深度脱硫プロセス
- Photochemical Desulfurization for Light Cycle Oil Using an Organic Two-phase Extraction System
- Photochemical Desulfurization of Light Oils Using Oil/Hydrogen Peroxide Aqueous Solution Extraction System : Application for High Sulfur Content Straight-Run Light Gas Oil and Aromatic Rich Light Cycle Oil
- Photochemical Desulfurization of Methyl-Substituted Organic Sulfur Compounds from Light Oil Using an Oil/Hydrogen Peroxide Aqueous Solution Two-Phase System
- PHOTOREDUCTIVE STRIPPING OF VANADIUM IN SOLVENT EXTRACTION PROCESS FOR SEPARATION OF VANADIUM AND MOLYBDENUM
- SEPARATION OF EUROPIUM FROM SAMARIUM AND GADOLINIUM BY COMBINATION OF PHOTOCHEMICAL REDUCTION AND SOLVENT EXTRACTION
- Kinetics of Extraction of Aluminum and Beryllium by Mixture of Bis(2-ethylhexyl)phosphoric Acid and Dinonylnaphthalene Sulfonic Acid
- Kinetic Study on the Extraction of Aluminum and Beryllium by Mono(2-ethylhexyl)phosphoric Acid
- Equilibrium Study on the Extraction of Aluminum and Beryllium by a Mixture of Mono(2-ethylhexyl) Phosphoric Acid and Bis(2-ethylhexyl) Phosphoric Acid
- Effect of Electrostatic Interaction on Reverse Micellar Extraction of Large Molecular Weight Proteins
- Extraction of Proteins and Water with Sodium Bis(2-Ethylhexyl)Sulfosuccinate/Long chain Alkyl Amines Mixed Micellar System
- Extraction Characteristic of Bovine Serum Albumin Using Sodium Bis(2-Ethylhexyl)Sulfosuccinate Reverse Micelles
- Characteristics and Kinetics of Lipase-Catalyzed Hydrolysis of Olive Oil in Reverse Micellar System
- EFFECTIVE PURIFICATION METHOD OF LARGE MOLECULAR WEIGHT PROTEINS USING CONVENTIONAL AOT REVERSE MICELLES
- ACTIVITY OF β-GALACTOSIDASE SOLUBILIZED IN REVERSE MICELLES AND SELECTIVE BACK-EXTRACTION FROM MICELLAR PHASE
- 乳化液膜を反応場とするY_2O_3:Yb,Er赤外可視変換蛍光体微粒子の調製
- Preparation of Ultrafine Palladium Particles in Reverse Micelles and Application for Hydrogenation Catalysts
- 逆ミセル内水相反応場と均一反応場における超微粒子の凝集速度
- 金属イオンの抽出分離プロセスの設計
- 乳化液膜系を微小反応場として利用する微粒子材料の調製と微細構造制御
- 逆ミセル系で調製した半導体ナノ粒子のプロセシングと光機能材料の創製
- 金属イオンの抽出分離プロセスの設計
- 乳化液膜を反応場とするY_2O_3:Eu^蛍光体微粒子の調製とその蛍光特性
- Preparation of Concentrated Ultrafine Particles in Reverse Micellar Systems Using Extractant-Metal Ion Complex as a Metal Ion Source
- Improvement of the Productivity of Preparation Process for Ultrafine Metal Sulfide Particles Using Reverse Micellar Systems
- EVALUATION OF SURFACE NET AND LOCAL HYDROPHOBICITIES DURING ACID-AND SALTS-INDUCED CONFORMATIONAL CHANGE OF CYTOCHROME C USING AQUEOUS TWO-PHASE PARTITION SYSTEMS
- In Vitro Effects of Immunosuppressive Agents on Cytokine Production by HTLV-I-Infected T Cell Clones Derived from the Ocular Fluid of Patients with HTLV-I Uveitis
- MECHANISM OF FORMATION OF SILVER HALIDE ULTRAFINE PARTICLES IN REVERSE MICELLAR SYSTEMS
- MECHANISM OF FORMATION OF LEAD SULFIDE ULTRAFINE PARTICLES IN REVERSE MICELLAR SYSTEMS
- SEPARATION OF EUROPIUM FROM SAMARIUM AND GADOLINIUM BY COMBINATION OF ELECTROCHEMICAL REDUCTION AND SOLVENT EXTRACTION
- SEPARATION OF Ce FROM La/Ca/Nd MIXTURE BY PHOTOOXIDATION AND LIQUID-LIQUID EXTRACTION
- Optimal Disruption Methods for the Selective Recovery of β-Galactosidase from Escherichia coli
- Preparation of Rare Earth Oxalate Ultrafine Particles in Emulsion Liquid Membrane System Using Carboxylic Acid as Cation Carrier
- PREPARATION OF COPPER OXALATE FINE PARTICLES USING EMULSION LIQUID MEMBRANE SYSTEM
- Preparation of Composite Sr-Pb Oxalate Fine Particles Using Emulsion
- EXTRACTION OF ENZYMES AND THEIR ACTIVITIES IN AOT REVERSE MICELLAR SYSTEMS MODIFIED WITH NONIONIC SURFACTANTS
- Fermentation of Bacillus subtilis ATCC 6633 and Production of Subtilin in Polyethylene Glycol/Phosphate Aqueous Two-Phase Systems
- Control of Autolysis of Bacillus subtilis for Selective Production of the Intracellular Enzyme Glucose-6-Phosphate Dehydrogenase in Aqueous Two-Phase Systems
- EVALUATION OF SURFACE HYDROPHOBICITIES DURING REFOLDING PROCESS OF CARBONIC ANHYDRASE USING AQUEOUS TWO-PHASE PARTITIONING SYSTEM
- Effects of Thiols on Photocatalytic Properties of Nano-CdS- Polythiourethane Composite Particles
- 逆ミセルを反応場とするナノサイズ超微粒子の調製と光触媒としての利用
- Extraction and Separation of Gallium and Indium from Aqueous Chloride Solution Using Several Organophosphorus Compounds as Extractants
- Selective Recovery of Proteins by Control of Their Surface Properties Utilizing PEG-Bound Affinity Ligands
- Thiol-Mediated Immobilization of Photocatalytic Metal Sulfide Ultrafine Particles Formed in Reverse Micellar Systems in Polythiourethane
- 溶媒抽出法を用いた下水汚泥焼却灰からのリン資源の回収
- Quantitative Study on Thiophenol Modification and Redispersion Property of Cadmium Sulfide Ultrafine Particles Prepared in Reverse Micellar Systems
- 下水汚泥焼却灰からの高純度リン酸回収プロセス
- 液液抽出法と光化学反応を利用する軽油の新しい深度脱硫プロセス (拡散分離技術の話題)
- STABILITY AND PARTITION OF ALCOHOL DEHYDROGENASE IN POLYETHYLENE GLYCOL/PHOSPHATE AFFINITY AQUEOUS TWO-PHASE SYSTEMS USING A TRIAZINE DYE
- SYNERGISTIC EXTRACTION OF RARE-EARTH ELEMENTS BY ALKYL PHOSPHORIC ACID AND TRI-n-OCTYLMETHYLAMMONIUM NITRATE
- THE EFFECT OF FORMIC ACID ON PHOTOREDUCTIVE STRIPPING OF VANADIUM IN LIQUID-LIQUID EXTRACTION PROCESS OF VANADIUM AND MOLYBDENUM
- High Functional Liquid-liquid Extraction System using Photochemical Reduction for Metal Ions
- Control of Partitioning of Bacterial Cells and Characterization of Their Surface Properties in Aqueous Two-Phase Systems
- NUMERICAL STUDY ON EFFECTS OF HYDRATE FORMATION ON DEEP SEA CO_2 STORAGE
- ACIDIC PHOSPHINATES WITH DIFFERENT ALKYL GROUPS AS EXTRACTANTS FOR RARE EARTHS
- EXTRACTION AND SEPARATION OF MOLYBDENUM AND VANADIUM USING BIS(2-ETHYLHEXYL)MONOTHIOPHOSPHORIC ACID AND BIS(2-ETHYLHEXYL)PHOSPHORIC ACID
- PREPARATION OF METAL SULFIDE COMPOSITE ULTRAFINE PARTICELS IN REVERSE MICELLAR SYSTEMS AND THEIR PHOTOCATALYTIC PROPERTY
- PURIFICATION PROCESS FOR HEAT SHOCK PROTEINS USING AQUEOUS TWO-PHASE SYSTEM AND PEG FRACTIONAL PRECIPITATION
- CHARACTERIZATION OF SURFACE PROPERTIES OF HEAT SHOCK PROTEINS FOR THE SEPARATION USING AQUEOUS TWO-PHASE SYSTEMS
- Recovery of Gallium and Vanadium from Coal Fly Ash
- Synthesis of chemical reaction cycles effective in saving energy.
- Recovery of vanadium from oil-fired boiler slag by direct leaching and subsequent solvent extraction.
- Extraction Equilibria of Aluminum and Beryllium from Sulfate Media by Mixture of Bis(2-Ethylhexyl) Phosphoric Acid and Dinonylnaphthalene Sulfonic Acid.
- Synergistic extraction of rare-earth elements by tri-n-octylmethylammonium nitrate and .BETA.-diketone.
- Multi-objective analysis for energy and resource conservation in process systems.
- Design of heat exchanger network with uncertainty in overall heat transfer coefficients.
- Design of fixed-gain feedback control system with required tolerance.
- Extraction of molybdenum and vanadium from hydrochloric acid by tri-n-butyl phosphate in various diluent solutions.
- Computer-aided structure synthesis of metal extraction processes.
- Recovery and purification of boron from coal fly ash.
- Some problems in the computer-aided synthesis of metal separation processes by liquid-liquid extraction.
- Preparation of Fe Oxide and Composite Ti-Fe Oxide Ultrafine Particles in Reverse Micellar Systems.
- BAHAVIOR OF REACTING AND COALESCING DISPERSED PHASE IN A STIRRED TANK REACTOR
- On the vector optimization of heat exchange.
- A note on synthesis of thermochemical cycles for reducing carbon dioxide.
- Preparation and Photocatalytic Reactions of Titanium Dioxide Ultrafine Particles in Reverse Micellar Systems.
- PERFORMANCE OF FIXED BED REACTORS WITH CATALYST FOULING
- BEHAVIOR OF DISPERSED PARTICLES IN TURBULENT LIQUID FLOW
- LIQUID BEHAVIOUR IN BUBBLE COLUMN
- Extraction and separation of rare-earth elements by tri-n-octylmethylammonium nitrate and .BETA.-diketone using water-soluble complexing agent.
- Photoreductive stripping of vanadium using 2-propanol as radical scavenger in liquid-liquid extraction process of vanadium and molybdenum.
- Desulfurization Process for Light Oil by Photochemical Reaction and Liquid-Liquid Extraction: Removal of Benzothiophenes and Alkyl Sulfides.
- The effect of hydrochloric acid on hydrophobicity and partition of protein in aqueous two-phase systems.
- A METHOD FOR MEASUREMENT OF INTERACTION RATES OF DISPERSED PHASE IN A CONTINUOUS FLOW STIRRED TANK
- Mechanism of Extraction of Cobalt from Hydrochloric Acid by Tri-n-Octylmethylammonium Chloride
- Wake behavior and its effect on interaction between spherical-cap bubbles.
- Solvent extraction process for separation and purification of molybdenum and vanadium by tri-n-butyl phosphate in xylene.
- COLLISION AND COALESCENCE OF DISPERSED DROPS IN TURBULENT LIQUID FLOW
- Extraction on vanadium(V) from hydrochloric acid by tri-n-octylmethylammonium chloride.
- Extraction of hydrochloric acid by tri-n-octylmethylammonium chloride in various diluents.