Abstract: An acid gas absorbent comprising a metal sulfonate, phosphonate or carboxylate of a hindered amine and a process for the selective removal Of H2S as well as other acidic components such as carbon disulfide, carbonyl sulfide and oxygen and sulfur derivatives of C1 to C4 hydrocarbons from mixtures containing such acidic components and CO2 using said absorbent.

Abstract: Hindered cyclic polyamines and their salts are absorbents useful in acid gas treatment processes.

Abstract: A method for determining absorbent molecules that are effective for the property of acid gas removal from feedstreams comprising a) determining a set of known molecules that are effective for acid gas removal, b) defining descriptive parameters (descriptors) that correlate with the structure of molecules with known acid gas removal, c) assigning a value to each descriptor for each of the known molecules and developing a quantitative structure and property relationship (QSPR), and d) generating molecular structures that will be effective for acid gas removal from the structure and property relationship.

Abstract: An acid gas absorbent comprising a metal sulfonate, phosphonate or carboxylate of a hindered amine and a process for the selective removal Of H2S as well as other acidic components such as carbon disulfide, carbonyl sulfide and oxygen and sulfur derivatives of C1 to C4 hydrocarbons from mixtures containing such acidic components and CO2 using said absorbent.

Abstract: Hindered cyclic polyamines and their salts are absorbents useful in acid gas treatment processes.

Abstract: An organophotoreceptor that includes: (a) a charge transport material having the formula wherein A is selected from heterocyclic groups, naphthyl group, alkylsulfonylphenyl, stilbenyl or the group X, wherein X is represented by the formula B is selected from hydrogen, alkyl group, and an aryl group, with the proviso that when A is naphthyl, B is naphthyl; or where R1 is selected from the group consisting of N-pyrrolyl, N-pyrazolyl, N-tetrazolyl, N-indolyl, N-carbazolyl, N-triazolyl, N-imidazolyl, N-benzimidazolyl, N-indazolyl, and N-benzotriazolyl group, and R3 is a 9-fluorenone group. (b) a charge generating compound; and (c) an electrically conductive substrate.

Abstract: Heavy, high molecular weight multi ring aromatics present in petroleum resid, bitumen and heavy oils in the form of asphaltenes, heavy resids and polycyclic hetero (N) aromatic molecules are separated from the petroleum resid, bitumen and/or heavy oils, by the process comprising electrophilic aromatic substitution of polar groups onto the heavy high molecular weight multi-ring aromatics thereby rendering them insoluble in and facilitating their separation and recovery from the petroleum resid, bitumen and/or heavy oil.

Abstract: A novel charge transport compound, a novel process using that novel compound and an organophotoreceptor includes: (a) a novel charge transport compound having the formula where R1 and R2 are selected so that R1 and R2 form, with the included nitrogen atom, a group selected from the group consisting of heterocyclic rings, aromatic rings, and dinaphthylamine; or R1 comprises an aryl group and R2 comprises a group selected from the group consisting of sulfolanyl, pyrrolyl, pyrazolyl, benzotriazolyl, stilbenyl, tetrazolyl, and group A, wherein group A is represented by the structure or R1 comprises hydrogen, alkyl group, aryl group and R2 comprises sulfonylphenyl. R3 is hydrogen, alkyl group, aryl group, a heterocyclic group or a hydrocarbon group; and Q is a 3-carbazole group; (b) a charge generating compound; and (c) an electrically conductive substrate.

Abstract: This invention relates to a novel organophotoreceptor that includes: (a) a charge transport material comprising a fluorenone hydrazone having a) least two fluorenone alkylsulfonylphenylhydrazone groups, b) at least two fluorenone pyrrolylhydrazone groups, c) at least two fluorenone benzotriazolylhydrazone groups, d) at least two fluorenone sulfolanylhydrazone groups, e) at least two fluorenone pyrazolylhydrazone groups, f) at least two fluorenone naphthylhydrazone groups, g) at least two fluorenone tetrazolylhydrazone groups, h) at least two fluorenone stilbenylhydrazone groups, or i) at least two fluorenone (9H-fluoren-9-ylidene)benzylhydrazone groups. Some of these fluoreneones may be represented by the formula where n is an integer between 2 and 6, inclusive; R1 is hydrogen, alkyl, or aryl; R2 is alkylsulfonylphenyl or one of its derivatives; X is a linking group having the formula —(CH2)m—, branched or linear.

Abstract: This invention relates to a novel organophotoreceptor that includes: (a) a charge transport material comprising a fluorenone hydrazone having a) at least two fluorenone alkylsulfonylphenylhydrazone groups, b) at least two fluorenone pyrrolylhydrazone groups, c) at least two fluorenone benzotriazolylhydrazone groups, d) at least two fluorenone sulfolanylhydrazone groups, e) at least two fluorenone pyrazolylhydrazone groups, f) at least two fluorenone naphthylhydrazone groups, g) at least two fluorenone tetrazolylhydrazone groups, h) at least two fluorenone stilbenylhydrazone groups, or i) at least two fluorenone (9H-fluoren-9-ylidene)benzylhydrazone groups. Some of these fluoreneones may be represented by the formula where n is an integer between 2 and 6, inclusive; R1 is hydrogen, an alkyl group, or an aryl group; R2 is an alkylsulfonylphenyl or one of its derivatives; X is a linking group.

Abstract: The present invention relates to novel N,N,-Substituted S-Aryl-Isothioureas, and N,N,N′-Substituted S-Aryl-Isothioureas and combinatorial libraries thereof, as well as methods of preparing N,N,-Substituted S-Aryl-Isothioureas, and N,N,N′-Substituted S-Aryl-Isothiourea derivative compounds.

Abstract: This invention relates to a novel organophotoreceptor that includes:

Abstract: A novel charge transport compound, a novel process using that novel compound and an organophotoreceptor includes:

Abstract: An organophotoreceptor that includes:

Abstract: The present invention relates to novel triazole compounds of the following formula: wherein R1 to R5 have the meanings provided herein. The invention further relates to combinatorial libraries containing two or more such compounds, as well as methods of preparing triazole compounds.

Abstract: A method for removing corrosive contaminants from a polar extraction solvent comprises adding water to the solvent to provide a mixture. Then the mixture is contacted with a basic ion exchanger resin to remove the corrosive contaminants. The solvent is recovered and may be reused.

Abstract: This invention provides a method for preparing 3,3-dimethylbutyraldehyde from 3,3-dimethylbutanol using an oxidizing component. In one embodiment, 3,3-dimethylbutanol is oxidized to 3,3-dimethylbutyraldehyde in the vapor phase by contacting it with an oxidizing metal oxide compound. In another embodiment, the oxidation of 3,3-dimethylbutanol is carried out by treating it with 2,2,6,6-tetramethyl-1-piperidinyloxy, free radical and an oxidizing agent in a solvent to produce 3,3-dimethylbutyraldehyde. The method of this invention provides a commercially practicable means of preparing 3,3-dimethylbutyraldehyde.

Abstract: A method is disclosed for preparing 3,3-dimethylbutyraldehyde by isomerization of 3,3-dimethylepoxybutane with a basic lithium salt which in turn may be prepared by oxidation of dimethylbutane. The method provides an economical means of preparing 3,3-dimethylbutyraldehyde.

Abstract: Nitrogen-containing functionalised polymers may be obtained by reacting olefinically-unsaturated polymers and N-substituted amido or imido compounds in the presence of an acid catalyst. The compounds may be useful as oil additives, for example, as dispersants, in lubricating or fuel oil compositions.C.sub.2 to C.sub.25 olefins may be reacted with N-substituted amido or imido compounds to obtain dihydrooxazine compounds, which may be useful as chemical intermediates.

Abstract: This invention includes novel sultine compounds and the reaction of these compounds to form colored compounds. The invention also includes the use of these color-forming compounds in the manufacture and imaging of thermal imaging papers and pressure-sensitive imaging papers.