Disclosed are adsorbent compositions including a recoverable and reusable polypeptidylated hemoglobin iron composite and methods of using the compositions to adsorb and/or remove contaminant compounds from water involving contacting the water with an effective amount of the composition to remove the contaminant compounds.

Disclosed herein is a class of co-ordination framework materials having various useful properties. The co-ordination frameworks comprise complexes of M.sub.2[M(CN).sub.6] or A.sub.x(M.sub.2[M(CN).sub.6]), wherein M is selected from V, Cr, Mn, Fe, Co, Ni, Cu, Ag, Au, Zn, Ru, Rh, Pd and Pt; M is selected from Fe and Ru; A (when present) is located in the pores of the framework and is selected from Li.sup.+, Na.sup.+, K.sup.+, Be.sup.2+, Mg.sup.2+ and Ca.sup.2+; and x (when present) is 0<x8. Also disclosed are methods of making said materials and various uses of said materials.

Metal Organic Frameworks (MOFs), methods of using the MOFs for harvesting water from air, and methods of making the MOFs are provided. The water-harvesting MOFs include a metal organic framework molecule having positively charged, linker unsaturated nodes and a net positive electrical charge and charge-compensating anions contained within pores of the metal organic framework molecules. The charge-compensating ions are not anchored to the metal organic framework molecules via coordination bonds and, therefore, are able to move through the porous MOF structure when they are solvated in liquid water contained within the pores.

The present disclosure relates to redox active materials, such as the compound of formula (I), comprising at least one 2,5-dithio-7-azabicyclo(2.2.1)heptane unit connected to a surface thereof, as well as processes for making said redox active materials. The present disclosure relates to a method for recovering a metal, comprising reacting a metal in oxidized state with said redox active material. The present disclosure relates to uses of these redox active materials in sensors, electronic materials and for extracting metals. ##STR00001##

The present disclosure relates to redox active materials, such as the compound of formula (I), comprising at least one 2,5-dithio-7-azabicyclo(2.2.1)heptane unit connected to a surface thereof, as well as processes for making said redox active materials. The present disclosure relates to a method for recovering a metal, comprising reacting a metal in oxidized state with said redox active material. The present disclosure relates to uses of these redox active materials in sensors, electronic materials and for extracting metals. ##STR00001##

The invention relates to compounds of the structure of formula I and II: ##STR00001##
where X is selected from the group consisting of O, S and NH; Y, A and B are independently selected from the group consisting of N and CH; D, E and F are independently selected from the group consisting of CH, N, O and S; the symbol --- represents a single or a double bond; and R.sub.1, R.sub.2, and R.sub.3 are independently selected from the group consisting of H, electron withdrawing groups and electron releasing groups. In other embodiments, the compounds are used as oxygen scavengers and in barrier compositions and articles.

The invention relates to compounds of the structure of formula I and II: ##STR00001##
where X is selected from the group consisting of O, S and NH; Y, A and B are independently selected from the group consisting of N and CH; D, E and F are independently selected from the group consisting of CH, N, O and S; the symbol --- represents a single or a double bond; and R.sub.1, R.sub.2, and R.sub.3 are independently selected from the group consisting of H, electron withdrawing groups and electron releasing groups. In other embodiments, the compounds are used as oxygen scavengers and in barrier compositions and articles.

An apparatus for producing metal organic frameworks, comprising: a tubular flow reactor comprising a tubular body into which, in use, precursor compounds which form the metal organic framework are fed and flow, said tubular body including at least one annular loop.

Para-xylene is separated from a mixture of xylenes and ethylbenzene by a separation process. An ortho-selective adsorbent is used to reduce the ortho-xylene concentration of the xylenes, prior to contact of the xylenes and ethylbenzene with a para-selective adsorbent. The stream rich in ortho-xylene may be isomerized in the liquid phase to increase the amount of para-xylene therein. The para-xylene-depleted stream may be treated in the vapor phase to remove the ethylbenzene and then subjected to isomerization in the liquid phase to produce a stream having a higher than equilibrium amount of para-xylene.

A method of separating acetylene from a gas mixture comprising acetylene is provided. The method involves the use of a hybrid porous material with an affinity for acetylene adsorption. The hybrid porous material comprises a three-dimensional structure of metal species (M) and first and second linker groups (L.sup.1 and L.sup.2), wherein the metal species (M) are linked together in a first and second direction by first linker groups (L.sup.1) and are linked together in a third direction by second linker groups (L.sup.2) to form the three-dimensional structure. The hybrid porous materials may have a high selectivity for acetylene and/or a high capacity for acetylene adsorption. The method may be particularly useful for the purification of ethylene gas contaminated with acetylene during an ethylene production/purification process. The method may be particularly useful for the large scale separation of acetylene from other gases such as ethylene and carbon dioxide, during an acetylene production/purification process.