Zobrazeno 1 - 10
of 45
pro vyhledávání: '"C. RICHARD HALL"'
Publikováno v:
Adsorption Science & Technology, Vol 8 (1991)
The efficiency of adsorption of chloropicrin vapour from a flowing airstream by beds of BPL activated carbon has been measured as a function of the relative humidity and temperature. The results show that there is a complex relationship between the k
Externí odkaz:
https://doaj.org/article/f3b35436653e4395a1bccd957b505dad
Autor:
C. Richard Hall, Richard J. Holmes
Publikováno v:
Adsorption Science & Technology, Vol 6 (1989)
The breakthrough curves of chloropicrin vapour through beds of BPL activated carbon pre-equilibrated at different relative humidities (RH) have been measured. The associated water displacement curves and effluent temperature profiles are also present
Externí odkaz:
https://doaj.org/article/8f6f52055f21411e8872a9acc5dda2c9
Autor:
Richard J. Holmes, C. Richard Hall
Publikováno v:
Carbon. 31:881-886
The adsorptive properties of chlorinated coal or nutshell carbons depend on the chlorination temperature. Chlorination at about 180°C, followed by extraction with water or methanol, yields carbons that have similar adsorption properties and are rela
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::779b98c6b425b23fd0a921c27582b363
https://doi.org/10.1016/0008-6223(93)90188-g
https://doi.org/10.1016/0008-6223(93)90188-g
Autor:
Richard J. Holmes, C. Richard Hall
Publikováno v:
Carbon. 30:173-176
Treatment of coal or coconut shell activated carbons with either phosgene or chlorine at 180°C followed by washing with methanol or water results in chlorinated carbons with very similar pore structures to their precursors. Water adsorption experime
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e5319911d2252c6501a1cb24322ed42
https://doi.org/10.1016/0008-6223(92)90077-a
https://doi.org/10.1016/0008-6223(92)90077-a
Autor:
C Richard, Hall
Publikováno v:
Health facilities management. 22(7)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::03e9ad8664cb85777b3731c8822480cf
https://pubmed.ncbi.nlm.nih.gov/19795734
https://pubmed.ncbi.nlm.nih.gov/19795734
Autor:
C. Richard Hall, Richard J. Holmes
Publikováno v:
Colloids and Surfaces. 58:339-351
Granular activated carbons were modified by treatment with fluorine (5% vol in N2) at temperatures below 200°C. The nature and amounts of any gaseous products formed were dependent upon the type of carbon and the reaction temperature, but in each ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f72cc5649cacb73535b689aab4b25737
https://doi.org/10.1016/0166-6622(91)80213-8
https://doi.org/10.1016/0166-6622(91)80213-8
Publikováno v:
J. Chem. Soc., Perkin Trans. 1. :639-643
1,3,2-Oxazaphospholidine-2-thiones derived from (+)-norephedrine react with alkoxide to give a product of kinetic control, formed by endocyclic P–O cleavage with inversion of configuration, and one of thermodynamic control, formed by endocyclic P
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a67b309565ed9679338e4d51617b86a
https://doi.org/10.1039/p19820000639
https://doi.org/10.1039/p19820000639
Autor:
Nancy E. Williams, C. Richard Hall
Publikováno v:
Tetrahedron Letters. 21:4959-4962
1,3,2-Thiazaphospholidine-2-ones have been prepared by rearrangement of the corresponding 1,3,2-oxazaphospholidine-2-thiones. The stereochemical course of ring opening reactions has been investigated.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::370ecbb3932bd8a3143a597880603002
https://doi.org/10.1016/s0040-4039(00)71165-8
https://doi.org/10.1016/s0040-4039(00)71165-8
Publikováno v:
Phosphorus and Sulfur and the Related Elements. 10:229-232
Added lithium cation has no effect on the stereochemical outcome of the displacement of chloride or p-nitrophenoxide from phosphorus in acyclic and some cyclic molecules. In other cyclic systems th...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::abac964ba4a9542d7a3a0e829b18f527
https://doi.org/10.1080/03086648108077510
https://doi.org/10.1080/03086648108077510
Publikováno v:
Tetrahedron. 41:4909-4917
With R-(+) ethyl (or methyl) S-methyl methylphosphonothioate and (+)-pinacolyl alkoxide competitive and highly stereoselective displacements of O-alkyl and S-methyl occur, both reactions being with inversion of configuration. With the enantiomeric S-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb2e4ddbe4b2f7f7094fe70fc567e863
https://doi.org/10.1016/s0040-4020(01)96731-6
https://doi.org/10.1016/s0040-4020(01)96731-6