A5041101873- Asymmetric Synthesis and Catalysis
- Synthetic Organic Chemistry Methods
- Radioactive element chemistry and processing
- Extraction and Separation Processes
- Organic and Inorganic Chemical Reactions
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Cyclopropane Reaction Mechanisms
- Organic Chemistry Cycloaddition Reactions
- Graphite, nuclear technology, radiation studies
- Synthesis and Catalytic Reactions
- Steroid Chemistry and Biochemistry
- Nuclear and radioactivity studies
- Chemical Reaction Mechanisms
- Marine Sponges and Natural Products
- Radioactivity and Radon Measurements
- Cancer Treatment and Pharmacology
- Carbohydrate Chemistry and Synthesis
- Metal Extraction and Bioleaching
- Oxidative Organic Chemistry Reactions
- Chemical synthesis and alkaloids
- Catalytic Cross-Coupling Reactions
- Synthesis and Reactions of Organic Compounds
- Asymmetric Hydrogenation and Catalysis
- Nuclear reactor physics and engineering
Instytut Chemii i Techniki Jądrowej
2015-2025
Warsaw University of Technology
1998-2021
National University of Sciences and Technology
2015
University of Warsaw
1995-2006
University of Kentucky
2001-2004
University of Michigan
2002
La Roche College
1991-1996
Polish Academy of Sciences
1987-1989
National Veterinary Research Institute
1988-1989
Freie Universität Berlin
1988
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTotal synthesis of 1233AP. M. Wovkulich, K. Shankaran, J. Kiegiel, and R. UskokovicCite this: Org. Chem. 1993, 58, 4, 832–839Publication Date (Print):February 1, 1993Publication History Published online1 May 2002Published inissue 1 February 1993https://pubs.acs.org/doi/10.1021/jo00056a013https://doi.org/10.1021/jo00056a013research-articleACS PublicationsRequest reuse permissionsArticle Views1818Altmetric-Citations70LEARN ABOUT THESE METRICSArticle...
Nuclear power plants have the lowest life-cycle greenhouse gas emissions intensity and produce more electricity with less land use compared to any other low-carbon-emission-based energy source. There is growing global interest in Generation IV reactors and, at same time, there great using small modular reactors. However, development of new introduces engineering chemical challenges critical advancing nuclear safety, efficiency, sustainability. For III+ reactors, water chemistry control...
Solvent extraction of uranium from acidic and alkaline post-leaching liquors that were obtained by leaching Polish ores is reported in this paper. The stripping organic to aqueous phase was also studied. synergistic mixture 2-diethylhexylphosphoric acid (D2EHPA) tri-n-butylphosphate (0.2 M:0.2 M) found as a good extracting agent for uranium. Recovery reached even 98 %. effect such parameters like concentration reagents used the experiments evaluated advance using model solutions.
The simple fullerene diols C(60)(OH)(2) and C(70)(OH)(2) were prepared by addition of RuO(4) followed acid hydrolysis. 1,2-C(60)(OH)(2) isomer was formed from C(60), two isomers (1,2 5,6) in the hydroxylation C(70). These compounds are much more soluble THF dioxane than parent fullerenes. More highly hydroxylated materials as well.
The recovery of uranium and other valuable metals from Polish Peribaltic sandstones were examined. solid-liquid extraction is the first stage technology production it crucial for next stages processing. In laboratory experiments was leached with efficiencies 71-100 % by acidic lixiviants. Satisfactory results obtained alkaline leaching process. Almost 100 carbonate solution. post solutions only small amounts vanadium present.
Phosphogypsum, a byproduct of phosphate fertilizer production, poses significant environmental challenges due to its large volume, hazardous composition, and radioactivity. Conventional disposal methods, such as stockpiling landfilling, contribute soil water contamination present risks human health. This article explores the potential integrating phosphogypsum into circular economy framework, focusing on reducing impacts extracting value from this industrial waste. A detailed assessment...
Farnesylation is a posttranslational lipid modification in which 15-carbon farnesyl isoprenoid linked via thioether bond to specific cysteine residues of proteins reaction catalyzed by protein farnesyltransferase (FTase). We synthesized analogues (3−6) pyrophosphate (FPP) probe the range modifications possible FPP skeleton allow for efficient transfer FTase. Photoaffinity (5, 6) were prepared substituting perfluorophenyl azide functional groups ω-terminal isoprene FPP. Substituted anilines...
Throughout the world, and especially in European Union, numerous technologies for thermal treatment of radioactive waste are available or being developed. These can be applied to a large range different streams, including non-standard types that present specific management challenges. Thermal result significant reduction volume hazard, which beneficial safe storage disposal. also removes organic material form complexing agents increase mobility radionuclides landfill. In paper, basic...
A number of primary ores such as phosphate rock, gold-, copper- and rare earth contain considerable amounts accompanying uranium other critical materials. Energy neutral mineral processing is the extraction unconventional during ore to use it, after enrichment fuel production, generate greenhouse gas lean energy in a nuclear reactor. neutrality reached if produced from extracted equal or larger than required for processing, extraction, -conversion, -enrichment -fuel production. This work...
Since the beginning of nuclear industry, graphite has been widely used as a moderator and reflector neutrons in power reactors. Some reactors are relatively old have already shut down. As result, large amount irradiated generated. Although several thousand papers International Nuclear Information Service (INIS) database discussed management radioactive waste containing graphite, knowledge this problem is not common. The aim paper to present current status methods different countries manage...
Abstract The current study presents the results of chemical and radiochemical characterization phosphogypsum obtained from former Wizów Chemical Plant in Poland. Phosphogypsum is a residue phosphoric acid production. mainly contains calcium sulfate dihydrate impurities originating source phosphate rock, including toxic trace elements natural radionuclides. stacks occupy large area are an environmental issue today. project “Phosphogypsum Processing to Critical Raw Materials”, currently...
The 25-hydroxy and 1α,25-dihydroxy vitamin D3 metabolites are obtained by solvolytic rearrangements of the 1-desoxy 1α-hydroxy cyclopropyl vinylogous alcohols 31 29, respectively, with simultaneous formation D structural triene 3-hydroxy function. Two complementary methods have been employed to direct stereoselectivity samarium induced olefin cyclopropanations which ultimately lead key chiral ring A precursors. One protocol uses two stereogenic centers (R,R)-2,3-butanediol ketal moiety 8,...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA simple way to (3aR,4S,7aS)-(Z)-ethylideneoctahydro-7a-methyl-1H-4-indenol, a synthon for total synthesis of vitamins DAndrzej Robert Daniewski and Jaroslaw KiegielCite this: J. Org. Chem. 1988, 53, 23, 5534–5535Publication Date (Print):November 1, 1988Publication History Published online1 May 2002Published inissue 1 November 1988https://pubs.acs.org/doi/10.1021/jo00258a025https://doi.org/10.1021/jo00258a025research-articleACS PublicationsRequest...
In light of the increasing demand for energy sources in world and need to meet climate goals set by countries, there is growing global interest high temperature gas cooled reactors (HTGRs), especially as they are known be inherently safe nuclear reactors. The safety HTGRs results, among other, from nature fuel used them form coated TRISO particles (tri-structural-isotropic) reduction total amount radioactive waste generated. This paper reviews numerous methods ensure sustainable, feasible...