B01J27/053

SYNTHESIS OF CANNABIGEROL
20200115306 · 2020-04-16 ·

Multiple methods of synthesizing cannabigerol are presented. Combining olivetol with geraniol derivatives are provided. Cross-coupling methods of combing functionalized resorcinols are provided. Useful intermediates are formed during such cross-coupling steps.

Exhaust gas purification device

An exhaust gas purification device which has improved exhaust gas purification performance. An exhaust gas purification device which includes a first catalyst layer that contains: a Pd-supporting catalyst which is obtained by having alumina carrier particles support Pd; a first Rh-supporting catalyst which is obtained by having first ceria-zirconia carrier particles support Rh; and second ceria-zirconia carrier particles. This exhaust gas purification device is configured such that: the ceria concentration in the first ceria-zirconia carrier particles is 30 wt % or less; and the amount of ceria in the second ceria-zirconia carrier particles is larger than the amount of ceria in the first ceria-zirconia carrier particles.

Exhaust gas purification device

An exhaust gas purification device which has improved exhaust gas purification performance. An exhaust gas purification device which includes a first catalyst layer that contains: a Pd-supporting catalyst which is obtained by having alumina carrier particles support Pd; a first Rh-supporting catalyst which is obtained by having first ceria-zirconia carrier particles support Rh; and second ceria-zirconia carrier particles. This exhaust gas purification device is configured such that: the ceria concentration in the first ceria-zirconia carrier particles is 30 wt % or less; and the amount of ceria in the second ceria-zirconia carrier particles is larger than the amount of ceria in the first ceria-zirconia carrier particles.

METHOD FOR TREATING SLUDGE
20200102239 · 2020-04-02 ·

It is disclosed a method of treating municipal and/or industrial sludge, comprising the steps of: a) providing the sludge, which has a pH of at least 6; b) adding a catalyst to the sludge; c) adding a radical initiator, selected from hydrogen peroxide and percompounds to the sludge; d) adding a polymer to the sludge to provide a chemically treated sludge; e) dewatering the chemically treated sludge in at least one stage to provide a dewatered sludge cake, wherein step b) and c) may be performed in any order.

METHOD FOR TREATING SLUDGE
20200102239 · 2020-04-02 ·

It is disclosed a method of treating municipal and/or industrial sludge, comprising the steps of: a) providing the sludge, which has a pH of at least 6; b) adding a catalyst to the sludge; c) adding a radical initiator, selected from hydrogen peroxide and percompounds to the sludge; d) adding a polymer to the sludge to provide a chemically treated sludge; e) dewatering the chemically treated sludge in at least one stage to provide a dewatered sludge cake, wherein step b) and c) may be performed in any order.

Mesoporous materials and processes for preparation thereof

A process for preparing a mesoporous material, e.g., transition metal oxide, sulfide, selenide or telluride, Lanthanide metal oxide, sulfide, selenide or telluride, a post-transition metal oxide, sulfide, selenide or telluride and metalloid oxide, sulfide, selenide or telluride. The process comprises providing an acidic mixture comprising a metal precursor, an interface modifier, a hydrotropic or lyotropic ion precursor, and a surfactant; and heating the acidic mixture at a temperature and for a period of time sufficient to form the mesoporous material. A mesoporous material prepared by the above process. A method of controlling nano-sized wall crystallinity and mesoporosity in mesoporous materials. The method comprises providing an acidic mixture comprising a metal precursor, an interface modifier, a hydrotropic or lyotropic ion precursor, and a surfactant; and heating the acidic mixture at a temperature and for a period of time sufficient to control nano-sized wall crystallinity and mesoporosity in the mesoporous material. Mesoporous materials and a method of tuning structural properties of mesoporous materials.

Mesoporous materials and processes for preparation thereof

A process for preparing a mesoporous material, e.g., transition metal oxide, sulfide, selenide or telluride, Lanthanide metal oxide, sulfide, selenide or telluride, a post-transition metal oxide, sulfide, selenide or telluride and metalloid oxide, sulfide, selenide or telluride. The process comprises providing an acidic mixture comprising a metal precursor, an interface modifier, a hydrotropic or lyotropic ion precursor, and a surfactant; and heating the acidic mixture at a temperature and for a period of time sufficient to form the mesoporous material. A mesoporous material prepared by the above process. A method of controlling nano-sized wall crystallinity and mesoporosity in mesoporous materials. The method comprises providing an acidic mixture comprising a metal precursor, an interface modifier, a hydrotropic or lyotropic ion precursor, and a surfactant; and heating the acidic mixture at a temperature and for a period of time sufficient to control nano-sized wall crystallinity and mesoporosity in the mesoporous material. Mesoporous materials and a method of tuning structural properties of mesoporous materials.

Exhaust gas purifying catalyst

The object of the present invention is to provide an exhaust gas purifying catalyst that can achieve high purification performance while suppressing H.sub.2S emissions. The object is solved by an exhaust gas purifying catalyst in which the lower layer of the catalyst coating layer comprises a ceria-zirconia composite oxide having a pyrochlore-type ordered array structure, in which the ceria-zirconia composite oxide contains at least one additional element selected from the group consisting of praseodymium, lanthanum, and yttrium at 0.5 to 5.0 mol % in relation to the total cation amount, and the molar ratio of (cerium+additional element):(zirconium) is within the range from 43:57 to 48:52.

ENHANCED OXYGEN TRANSFER AGENT SYSTEMS FOR OXIDATIVE DEHYDROGENATION OF HYDROCARBONS

Aspects of the invention relate to enhanced oxygen transfer agent systems and methods of use thereof. According to one aspect, a method for producing olefins from a hydrocarbon feed includes the step of contacting a hydrocarbon feed comprised of one or more alkanes with an oxygen transfer agent at a temperature of 350 C. to 1000 C. The oxygen transfer agent comprising an oxygen-donating chalcogen agent comprised of at least one of S, Se, or Te and a reducible metal oxide. The chalcogen having an oxidation state greater than +2. According to another aspect, a method for producing one or more olefins by partial combustion of a hydrocarbon feed includes partially combusting a hydrocarbon feed comprised of one or more alkanes by contacting the hydrocarbon feed with an oxygen transfer agent comprising CaS0.sub.4 at a temperature of 350 C. to 1000 C. to produce one or more olefins comprising ethylene and coproducing water.

METHOD FOR PREPARING 5-(4-BROMOPHENYL)-4,6-DICHLOROPYRIMIDINE

A method for preparing 5-(4-bromophenyl)-4,6-dichloropyrimidine is provided. The method comprises the steps of: preparing methyl p-bromophenylacetate (Intermediate I) by catalytic esterification of p-bromophenylacetic acid, and then reacting with dimethyl carbonate to synthesize 2-(4-bromophenyl)-malonic acid-1,3-dimethyl ester (Intermediate 2), cyclizing with formamidine hydrochloride to obtain 5-(4-bromophenyl)-4,6-dihydroxypyrimidine (Intermediate 3), and then chlorinating to give the product 5-(4-bromophenyl)-4,6-dichloropyrimidine. In the process of preparing Intermediate 1 in the present invention, a solid acid is used as a catalyst. Moreover, in the process of preparing Intermediate 2, sodium methoxide is used as a base in place of sodium hydride or sodium amide used in the prior art. Furthermore, Intermediate 3 is prepared by a one-pot process.