- VIRUCIDAL COMPOSITIONS AND METHODS
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A biocidal/antiviral composition comprises a quaternary ammonium compound (QAC) in combination with a reagent that increases the cationic charge on the QAC to thereby increase the biocidal/antiviral effect of the QAC. In preferred aspects, the reagent is urea hydrochloride and the QAC is dialkyl dimethyl ammonium chloride.
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- New production method for azodicarbonamide
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Provided is an economical, safe, and more environmentally-friendly production method for azodicarbonamide. According to the present invention, in a homogeneous system or heterogeneous miscible system of water or an organic solvent or an ionic solution, and an organic solvent and/or an ionic solution and water, azodicarbonamide is produced by using hydrogen peroxide in urea and reacting active chlorine or active chlorine ions and an active bromine compound such as active bromine or active bromine ions and/or an active form derived from hydrogen peroxide, or by electrolytically oxidizing an intermediate as desired to obtain a target, and recycling and using post-reaction byproducts.
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Paragraph 0098; 0099
(2017/07/20)
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- Deep eutectic solvents as attractive media for CO2 capture
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We report a family of deep eutectic solvents (DESs) consisting of various hydrogen bonding donor-acceptor pairs as CO2 capturing media. These DESs capture CO2via carbamate formation upon reaction between their hydrogen bonding donor units and CO2. Among the members tested herein, a DES made up of monoethanolamine hydrochloride-ethylenediamine exhibits an unprecedentedly high gravimetric uptake of 33.7 wt% with good initial kinetics (25.2 wt% uptake within 2.5 min) and recyclability. The given DES also shows sustainable performance in the presence of water, decent tolerance against temperature rise, and a relatively low heat of absorption which is attractive for regeneration. Even with the high gravimetric uptake, the DES has a far more suppressed corrosiveness compared to its pure monoethanolamine and ethylenediamine counterparts due to low oxygen/moisture permeability and the hydrogen bonding network that alleviates the corrosion redox cycle. The observed excellent properties in various key aspects of CO2 capture suggest that DESs are strong candidates to replace the conventional monoethanolamine-based scrubbing technology and are worth further exploration.
- Trivedi, Tushar J.,Lee, Ji Hoon,Lee, Hyeon Jeong,Jeong, You Kyeong,Choi, Jang Wook
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p. 2834 - 2842
(2016/05/24)
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- Process for preparing silacyclohexane compounds
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A process for preparing a silacyclohexane compound of the general formula STR1 wherein R and Q are, respectively, defined substituents, which process comprising the steps of converting a compound of the following formula STR2 to a halosilacyclohexane of the following formula STR3 wherein X is a halogen, reacting the halosilacyclohexane with an alcohol to obtain an alkoxysilacyclohexane of the formula which is equilibrated in steric configuration, and STR4 reducing the equilibrated alkoxysilacyclohexane whereby a trans form silacyclohexane compound is predominantly produced.
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- Method for controlling hypertension and compositions
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A method for controlling hypertension by administering to hypertensive subjects a N-aryl-N'-(2-imidazolidinylidene)urea compound and compositions suitable therefor are described.
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