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Sulfuric acid recovery from titanium white (pigment) waste liquor using diffusion dialysis with a new series of anion exchange membranes—static runs
Ion exchange membrane Diffusion dialysis Titanium white waste liquor Poly(2,6-dimethyl-1,4-phenylene oxide)
2016/3/25
In this paper, a new series of anion exchange membranes have been produced from linear engineering plastics poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) by conducting the processes of bromination, chl...
Biodiesel Production from Waste Cooking Oil Using Sulfuric Acid and Microwave Irradiation Processes
Biodiesel Waste Cooking Oil Free Fatty Acid Sulfuric Acid Microwave-Assisted Transesterification
2013/3/11
A comparative study of biodiesel production from waste cooking oil using sulfuric acid (Two-step) and microwave-assisted transesterification (One-step) was carried out. A two-step transesterification ...
Sulfuric Acid ([3-(3-Silicapropyl)sulfanyl]propyl)ester as a Recyclable Catalyst for the Synthesis of 4,4'-(Arylmethylene)bis(1H-pyrazol-5-ols)（图）
sulfuric acid sulfanyl]propyl)ester silica-bonded N-propyl sulfamic acid 3-methyl-l-phenyl-5-pyrazolone aldehydes
2013/10/12
Sulfuric acid ([3-(3-silicapropyl)sulfanyl]propyl)ester is employed as a recyclable catalyst for the condensation reaction between aromatic aldehydes and 3-methyl-l-phenyl-5-pyrazolone. This condensat...
Silica Sulfuric Acid: An Efficient Heterogeneous Catalyst for the One-Pot Synthesis of 1,4-Dihydropyridines under Mild and Solvent-Free Conditions（图）
aldehyde ethyl acetoacetate ammonium acetate silica sulfuric acid 1,4-dihydropyridine
2013/10/12
A series of 1,4-dihydropyridines have been prepared by a one-pot condensation of aldehydes, ethyl acetoacetate, and ammonium acetate in the presence of a heterogeneous catalyst silica sulfuric acid at...
Degradation Kinetics of Xylose and Glucose in Hydrolysate Containing Dilute Sulfuric Acid
biomass xylose glucose
2009/11/16
In preparation of fuel alcohol from biomass as feedstock, hydrolysis with dilute acid as catalyst is one way to produce fermentable saccharide, xylose and glucose. However, the acid is also the cataly...
Hot Filtration: A Way to Enhance the Recovery of Chromite in Sulfuric Acid Leaching,with or without the Addition of Perchloric Acid
Leaching Chromite Hexavalent chromium Sulfuric acid Perchloric acid
2009/10/9
Ahi gh grade chromite concentrate obtained from the Pınarba¸sı region of Kayseri province in Turkey was reacted with a solution of sulfuric acid and perchloric acid at atmospheric pres...
Bioethanol Production from Lignocellulosic Biomass Requiring No Sulfuric Acid: Mechanochemical Pretreatment and Enzymic Saccharification
Lignocellulosic biomass Bioethanol Mechanochemical pretreatment
2009/8/4
Bioethanol has become an important product recently. Manufacture depends on sugar or starch, but such processes conflict with the requirements for food supply. Lignocellulose has high potential as fe...
Analytical Method for Discrimination of Illegal Gas Oil Prepared from Fuel Oil Mixed with Sulfuric Acid
Fuel oil Illegal gas oil Sulfuric acid Aromatic compound
2009/7/24
Illegal gas oils, prepared by mixing fuel oils with sulfuric acid, were analyzed by spectrofluorophotometry and gas chromatography mass spectrometry (GCMS). The spectrofluorophotometric studies show...
Oxidation of Sulfur Dioxide to Sulfuric Acid over Activated Carbon Catalyst Produced from Wood
Sulfur dioxide Catalytic oxidation Activated carbon catalyst Waste wood Sulfuric acid
2009/7/23
Sulfur dioxide can be removed from exhaust gases by oxidation to sulfuric acid over an activated carbon catalyst in the presence of water. A manufacturing method for activated carbon was developed bas...