The present invention relates to a method for the production of butanol using a titanium-based bimetallic heterogeneous catalyst comprising a support of titanium dioxide doped with cobalt cations and transition metal nanoparticles impregnated in the support. The method described produces butanol as a single product, it is environmentally responsible and cost-effective. The present invention also describes a manufacturing process of the titanium-based bimetallic heterogeneous catalyst with enhanced selectivity, activity, and stability, among other advantages.

The present invention relates to a copper aluminium oxide catalyst for preparing a furfuryl alcohol from a furfural, comprising a copper-alumina spinel structure and having surface area in the range from 0.5 to 5 m.sup.2/g; wherein said catalyst is prepared from a process comprising the following steps: (i) dissolving copper salt and aluminium salt in a solvent; (ii) adding organic acid into mixture obtained from step (i); (iii) heating mixture obtained from step (ii) at the temperature higher than 150° C. until said mixture is combusted into solid; and (iv) calcining the solid obtained from step (iii) at the temperature in the range from 700 to 1,000° C. The catalyst according to the invention gives a high conversion of furfural to furfuryl alcohol and high furfuryl alcohol yield.

An AFI-CHA hybrid crystal molecular sieve and an NH.sub.3-SCR catalyst using the AFI-CHA hybrid crystal molecular sieve as a carrier, and preparation methods thereof are disclosed. The AFI-CHA hybrid crystal molecular sieve includes an AFI-type SAPO-5 molecular sieve and a CHA-type SAPO-34 molecular sieve, with hybrid crystal grains of AFI and CHA. The hybrid crystal molecular sieve is synthesized by a hydrothermal synthesis method and can be obtained by changing the structure directing agent, the heating rate and the calcinating temperature in the preparation process. Further, copper is loaded on the basis of the hybrid crystal molecular sieve to prepare copper-based NH.sub.3-SCR catalyst and corresponding monolithic catalyst. The catalytic activity and hydrothermal stability of the catalyst are significantly improved by the hybrid crystal molecular sieve.

The present invention discloses a preparation method of a catalyst with white carbon black modified by Zr—Nd—O and use thereof, and belongs to the field of catalyst technologies. In the present invention, an organic solvent evaporation induced self-assembly method is used to load Zr—Nd—O onto white carbon black to obtain a mesoporous Zr—Nd—O/white carbon black catalyst. The mesoporous Zr—Nd—O/white carbon black catalyst in the present invention has high catalytic activity, contains uniformly distributed mesopores with a relatively large average aperture, and has a simple preparation process, etc.

Provided are a preparation method for a propylene epoxidation catalyst, and a use thereof. During the preparation, an alkoxide solution of a prepared active component and a silica gel support are mixed, then a rotary evaporation treatment is performed on the mixture to remove a low-carbon alcohol to obtain a catalyst precursor, and then the obtained catalyst precursor is subjected to calcination and silylation treatments to obtain the propylene epoxidation catalyst. The catalyst is prepared in a simple process, can be applied to the chemical process of preparing propylene oxide by propylene epoxidation, has high average selectivity to propylene oxide, and has industrial application prospect.

A system and a method for isomerizing a 2-butene feed stream to form a 1-butene product stream are provided. An exemplary method includes calcining the red mud, flowing a butene feedstock over the red mud in an isomerization reactor, and separating 1-butene from a reactor effluent.

Provided in the invention are a catalyst for preparing phosgene and a preparation method therefor, and a method for the preparation of phosgene and the comprehensive utilization of energy thereof. The preparation method comprises the following steps: 1) stirring and soaking activated carbon in a modifying solution, then adding dimethyltin dichloride and chromium oxide powders and carrying out a reaction, and then adding a nickel oxide fine powder and ultrasonically oscillating same to prepare a pre-modified activated carbon; 2) drying the pre-modified activated carbon; and 3) heating and calcinating the dried pre-modified activated carbon from step 2) to prepare the catalyst. Based on the preparation method, thin layers are formed on the surface of the catalyst by bonding chromium tin phosphate and chromium tin silicate with Ni by means of —O—Ni—O—, respectively, which can improve the high-temperature resistance and oxidation resistance of the activated carbon, and improve the safe and stable operation level of a device. The aim of integrated comprehensive utilization of energy is achieved by coupling phosgene production with an evaporation and concentration process of brine and using steam as a heat source for evaporation and concentration of the brine.

An apparatus for manufacturing a heat sealing-type rotational laminated core, includes an upper mold and a lower mold, and forming and stacking individual laminar members, the individual laminar members being formed by having a strip which is sequentially transferred on the upper portion of the lower mold undergone a piercing process and a blanking process by punches mounted on the upper mold.

A sulfur-resistant, high activity methane oxidation catalyst for use in removing methane from gas streams having a concentration of methane by oxidizing the methane. The methane oxidation catalyst is especially useful in processing gas streams that also have a concentration of a sulfur compound. The sulfur-resistant methane oxidation catalyst includes a unique multi-crystalline zirconia as a support for a platinum component and a ruthenium component. The multi-crystalline zirconia contributes to the excellent properties of the catalyst. The platinum and ruthenium components can be included in the methane oxidation catalyst in a specific weight ratio that also contributes to the enhanced properties of the catalyst. The sulfur-resistant methane oxidation catalyst may also include a chloride component that contributes to enhanced properties of the catalyst.

Disclosed are an environment-friendly heat shielding film using a non-radioactive stable isotope and a manufacturing method therefor and, more specifically, an environment-friendly heat shielding film using a non-radioactive stable isotope and a manufacturing method therefor, wherein a heat shielding layer is formed on one surface of a substrate layer; the heat shielding layer is composed of stable isotopes as elements constituting a precursor and contains a non-radioactive stable isotope tungsten bronze compound having an oxygen-deficient .sup.(Y)A.sub.x.sup.(182,183,184,186)W.sub.1O.sub.(3-n) type hexagonal structure, thereby preventing the generation of radioactive materials, fundamentally blocking haze, and improving the visible light transmittance and the infrared light blocking rate; and the heat resistance and durability problems that may occur when the heat shielding layer is formed of the non-radioactive stable isotope tungsten bronze compound are solved by a passivation film.