Taiyuan University of Technology

Wei Huang

Qian Zhang

Litong Liang

Bingshe Xu

Jing Liu

Dong Wang

Hua Wang

Kechang Xie

Zhonglin Zhang

Xuguang Liu

Xiaogang Hao

Yuling Wu

Fang Li

Junli Yang

Husheng Jia

Zhihua Gao

Jianwei Liu

Chunyan Tu

Ahmad Faraz

Jun Wang

Lihua Yin

Bin Wang

Zeyu Peng

Yueli Wen

Juntian Huai

Chunyao Hao

Huijun Li

Jie Li

Yuhua Liu

Jinchuan Fan

Yongjun Liu

Jing Sun

Penglong Jia

The present disclosure provides a preparation method of a doped ZnO catalyst. The preparation method includes the following steps: mixing a precipitant and a first solvent to form a first solution having 1 mol/L to 5 mol/L of the precipitant by concentration; mixing one of a Cu salt or a Ga salt, a Zn salt, and a second solvent to form a second solution having Cu and Zn at a molar ratio of less than 0.05:1 and Ga and Zn at a molar ratio of less than 0.1:1; subjecting the first solution and the second solution to precipitation or hydrolysis at 50° C. to 90° C. to obtain a precipitate, and washing and drying the precipitate to obtain a precursor sample; and conducting calcination on the precursor sample at 300° C. to 500° C. for 3 h to 5 h to obtain a Cu-doped ZnO catalyst or a Ga-doped ZnO catalyst.

Preparation method of doped ZnO catalyst and synthesis method of higher alcohol using same

The present disclosure relates to the technical field of catalysts, and specifically to a Zn—Al slurry catalyst, its preparation method and its application in preparing ethanol from syngas. The preparation method provided in the disclosure prepares the Zn—Al slurry catalyst by introducing a zinc component into an aluminum sol, and the preparation method has a simple operation and a lower cost. The Zn—Al slurry catalyst prepared in the disclosure includes the Zn component and the Al component, which may catalyze syngas to generate ethanol under mild conditions. Also, the catalyst has stable properties, is not easy to be deactivated, and reduces the cost of preparing ethanol from syngas. When the Zn—Al slurry catalyst provided in the disclosure is used as the catalyst for preparing ethanol from syngas, the reaction conditions are mild, and the syngas may be catalyzed to generate ethanol under the conditions of 250-340° C. and 3-5 MPa.

Zn—Al slurry catalyst, method for preparing same and application in preparing ethanol from syngas

The disclosure relates to a zeolite catalyst for side-chain alkylation of toluene with methanol, including a zeolite NaX and NaPOor NaHPOsupported on the zeolite NaX. The zeolite catalyst can be effective for catalyzing the side-chain alkylation of toluene with methanol. The disclosure also relates to a process for preparing a zeolite catalyst for side-chain alkylation of toluene with methanol, which is simple, practical and cheap in cost.

Zeolite catalyst for alkylation of toluene with methanol, preparation process and use thereof

A composite catalyst for coal depolymerization, the catalyst includes an agent A and an agent B. The agent A includes an iron salt-based catalyst, and the agent B includes a metal salt-based catalyst different from the iron salt-based catalyst. The agent A and the agent B are alternately added during use.

Composite catalyst for coal depolymerization and using method therefor

Processes for macroscopically separating a maceral concentrate from raw coal are disclosed. In some embodiments, a process includes the following steps: crushing and sieving the raw coal to obtain a first coal sample and a second coal sample; subjecting the first coal sample to a heavy medium cyclone separation process; and subjecting the second coal sample to a froth flotation process. The first coal sample has a particle size within a first particle size range, and the second coal sample has a particle size within a second particle size range. In other embodiments, the froth flotation process uses a froth flotation agent including a foaming agent and a collector. The foaming agent includes at least one item selected from the group consisting of 2-octanol, terpenic oil, and polyethylene glycol (PEG). The collector includes at least one item selected from the group consisting of kerosene, diethyl phthalate (BET), and diesel.

Process for macroscopically separating maceral concentrate from raw coal

This application discloses a white-light hyperbranched conjugated polymer, a method for preparing the same and its use. The polymer uses a red phosphorescent Ir(III) complex as a core and polyfluorene derivative blue fluorescent materials as a framework which either contains or does not contain carbazole derivatives, and the white light hyperbranched polymers realize white-light emission by adjusting the content of the red phosphorescent Ir(III) complex connected using the complementation of blue and red color. The electroluminescent spectrum of the conjugated polymer in the present application covers the whole visible light emission area and is close to the pure white light emission, by which the conjugated polymer could be used as a material used in light-emitting layer to prepare the organic electroluminescent devices.

White-light hyperbranched conjugated polymer, method for preparing the same and it's use

The present invention provides a slurry catalyst and a method for preparing the same, and belongs to the technical field of preparing catalyst. Particularly, the present invention provides a slurry catalyst directly used in a slurry bed reactor for synthesizing methanol and dimethyl ether and a method for preparing the same, which uses the complete liquid phase preparation from solution to slurry without the conventional slurry-producing process of firstly forming a solid catalyst and dispersing it into an inert medium after crushing and milling. This catalyst mainly comprises Cu, Zn, Al and Zr, wherein atomic ratios of each of components are Cu/Zn/(Al+Zr)=1/0.1-5/0.15-15 and Zr/Al=1:1.0-1:30, and one or two selected from the group consisting of lanthanide metals, Mn, Mo, Si, V, W, Cr, Mg, Ni, K, Pd, Rh, Ru, Re, Pt and Sr is used a promoter. The catalyst prepared in the present invention has the advantages of good stability, high selectivity of alcohol and ether, good rheological behavior and strong wear resistance.

Slurry catalyst and the preparation thereof

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Taiyuan, China

Wei Huang