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Model programming of a direct contact condenser in solvent free microwave extraction of peppermint oil

Creator:: Du, Yihao
Abstract:: Solvent free microwave extraction (SFME) has been demonstrated to be feasible in extraction of essential oils from botanical materials. The benefits are no need for any solvent aside from the water naturally in the botanical material and a significant reduction in environmental impact for large scale production processes. However, the...
Resource Type:: Masters Thesis
Full Text:: Free Microwave Extraction of Peppermint Oil AN ABSTRACT OF THE THESIS OF Yihao Du for the

Influence of extractives on the chemical analysis of switchgrass

Creator:: Tandjo, Djuhartini
Abstract:: This thesis summarizes an investigation into the need for removing extractives from herbaceous biomass feedstocks prior to their chemical characterization. Switchgrass (Panicum virgatum), was used in this study as a representative herbaceous biomass feedstock. The influence of extractives on the chemical analysis of switchgrass was done by comparing the composition...
Resource Type:: Masters Thesis
Full Text:: solvent extraction process. Total extractives removed by ethanol, water and ethanol/water amounted to

The effects of frequency and amplitude in a pulsed extraction column employing the system carbon tetrachloride-acetic acid-water

Creator:: Welch, John Allen
Resource Type:: Masters Thesis
Full Text:: Engineering Chemistry 51:641-644. 1959. 7. Griffith, W. L., G. R. Jasny, and H. T. Tupper. The extraction

Methods of extraction and characterization of polyphenol oxidase from d'Anjou pears (Pyrus Communis L.)

Creator:: Smith, Denise Myrtle
Abstract:: Using phenolic scavengers different methods were examined to determine the optimum conditions for extracting polyphenol oxidase (PPO) from d'Anjou pears. Efficiency of the extraction was evaluated based on browning of the extract, PPO activity per g of pear tissue, absorption scan of 410 nm to -240 nm, and the isozyme...
Resource Type:: Masters Thesis
Full Text:: ^ ,,, Title: Methods of Extraction and Characterization of Polyphenol Oxidase fromit-'Anjou Pears (Pyrus

Convective mass transfer from pure liquid stationary drops to a flowing liquid

Creator:: Lockwood, Robert Addis
Resource Type:: Masters Thesis
Full Text:: during a search ot the literature on liquid-liquid extraction, when 1 t was found that there was

Investigation of the performance characteristics of a mixer-settler extractor

Creator:: Romig, Robert Pence
Resource Type:: Masters Thesis
Full Text:: -settler liquid-liquid extractor. Data were taken on the change in extraction efficiency with impeller

Efficiency of thorium extraction by primary amines as a function of pulse frequency and amplitude in a pulsed sieve-plate column

Creator:: Davis, Bernard Eric, 1937-
Abstract:: The amine extraction process is evaluated for pulse column operation. A 0.1 M solution of Primene JM-T (a commercial mixture of tertiary-alkyl primary amines) in a kerosene-base diluent is the extractant for thorium feed in aqueous acidic sulfate solutions. Equilibrium isotherms at room temperature are presented at aqueous acidities of...
Resource Type:: Masters Thesis
Full Text:: in answering correspondence concerning analytical and extraction chemistry. In the area of

The study of fluo-tantalum species by solvent extraction

Creator:: Coker, Marjory Carol
Abstract:: The extraction of tantalum fluoride complexes by large cationic extractants (tetraphenylarsonium ion, TPA, and crystal violet) and by methyl isobutyl ketone (MIBK) has been investigated as a function of fluoride concentration using ¹⁸² Ta as tracer. Extractions by the cationic extractants into chloroform were carried out in the absence of...
Resource Type:: Masters Thesis
Full Text:: solvent extraction chemistry grew considerably and bits and pieces were added to the picture of tantalum

Techniques of solvent extraction of organic material from natural waters

Creator:: Cronin, John Thomas, 1935-
Abstract:: Manual and automatic solvent extraction techniques were used to concentrate organic material from natural waters. Field and laboratory extractions were compared to determine the most probable method and best solvents for efficient concentration of organic material from estuarine and sea waters. The large scale extraction processes utilizing extractors made from...
Resource Type:: Dissertation
Full Text:: : TECHNIQUES OF SOLVENT EXTRACTION OF ORGANIC MATERIAL FROM NATURAL WATERS Abstract approved William 0

Photochemical degradation of sediment organic matter : effect on Zn-65 release

Creator:: Lenaers, William Michael
Abstract:: Columbia River sediment was irradiated with ultraviolet light to determine if organic material could be removed without altering the sorptive properties of the hydrous oxides of iron and manganese. A laboratory preparation of Zn-65 spiked hydrous ferric oxide was subjected to ultraviolet irradiation in order to assess the photochemical effect...
Resource Type:: Masters Thesis
Full Text:: . TABLE OF CONTENTS Page INTRODUCTION 1 General Statement 1 Background Information 4 Chemistry of Zinc

ScholarsArchive@OSU

Model programming of a direct contact condenser in solvent free microwave extraction of peppermint oil

Influence of extractives on the chemical analysis of switchgrass

The effects of frequency and amplitude in a pulsed extraction column employing the system carbon tetrachloride-acetic acid-water

Methods of extraction and characterization of polyphenol oxidase from d'Anjou pears (Pyrus Communis L.)

Convective mass transfer from pure liquid stationary drops to a flowing liquid

Investigation of the performance characteristics of a mixer-settler extractor

Efficiency of thorium extraction by primary amines as a function of pulse frequency and amplitude in a pulsed sieve-plate column

The study of fluo-tantalum species by solvent extraction

Techniques of solvent extraction of organic material from natural waters

Photochemical degradation of sediment organic matter : effect on Zn-65 release

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