نتایج جستجو برای: terephthalic acid dosimetry
تعداد نتایج: 755246 فیلتر نتایج به سال:
The aim of this study was to investigate the use of photochimicals processes (photolysis, H2O2/UVLP and NaOCl/UVLP) to eliminate monochloramine compound using a Low Pressure Hg lamp as an irradiation source (254 nm). First, it was found that the direct photolysis treatment might be rate of depletion under UV dose at 8000 mj/m2). Besides, this degradation was greatly improved by H2O2/UVLP thank’...
Cobalt and gold atoms have been deposited on self-assembled molecular domains of terephthalic acid are studied using low temperature scanning tunneling microscopy DFT calculations. These two types present different adsorption properties as well peculiar electronic structures. Co firmly adsorbed the molecules while Au is highly dependent presence diffusing hydrogen atoms. latter can also favour ...
Muconic acid has gained interest as a bio-based platform chemical to produce value-added compounds including adipic and terephthalic acid. In this study, fermentation strategy based on in situ product recovery was established boost process performance counteract inhibition. An optimized reactive extraction mixture for muconic developed consisting of 12.5% (v/v) CYTOP 503 canola oil showing high...
We report a process for converting fructose, at a high concentration (15 weight %), to 2,5-furandicarboxylic acid (FDCA), a monomer used in the production of polyethylene furanoate, a renewable plastic. In our process, fructose is dehydrated to hydroxymethylfurfural (HMF) at high yields (70%) using a γ-valerolactone (GVL)/H2O solvent system. HMF is subsequently oxidized to FDCA over a Pt/C cata...
A regioselective synthesis has been developed for the preparation of a series of N,N'-disubstituted 4,4'-carbonylbis(carbamoylbenzoic) acids and N,N'-disubstituted bis(carbamoyl) terephthalic acids by treatment of 3,3',4,4'-benzophenonetetracarboxylic dianhydride (1) and 1,2,4,5-benzenetetracarboxylic dianhydride (2) with arylalkyl primary amines (A-N). The carbamoylcarboxylic acid derivatives ...
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