Wanhua Chemical Group Co., Ltd.

Qingmei Jiang

Yuan Li

Weiqi Hua

Congying Zhang

Xin Li

Jinhong Song

Lei Tang

Hao Chen

Yang Yang

Changsheng Chen

Zhenguo Liu

Ke Ding

Hengdong Yang

Kun Wang

Jianglin Hu

Yunhai Liu

Wei Zeng

Hao Ding

Yanfang Song

Zhipeng Liu

Jian Wu

Hui Wang

Zaigang Yang

Zhongying Chen

Zilin Ni

Shujie Ren

Xiaolong Wang

Cong Wang

Bingbo Hu

Hua Mei

Dewei Yu

Shanjian Cao

Jun Qu

Shan Gao

Weijia Wang

Meng Zhou

Zhanyu Gao

Zhaoxing Liu

Xiucai Du

Xiaoli Sun

Changkun Chu

Xinjian Bian

The present invention provides an epoxy resin material, a preparation method therefor and an application thereof. The present method for preparing an epoxy resin material comprises: heating a mixture of an epoxy resin main agent and a curing agent that are placed at room temperature to 40-85&#xb0; C. for reaction and curing. The curing agent contains an adduct of an olefinic nitrile compound and an amine compound. The present method for preparing an epoxy resin material has the characteristics of low mixing viscosity, long operation time, and low amount of heat released during preparation.

Epoxy resin material, preparation method therefor and application thereof

A supported catalyst used for synthesizing a polyether amine, and a manufacturing method of the catalyst. The catalyst comprises: a porous oxide as a support; Ni, Cu, Pd, and Rh as active components; and one or more of any of Zr, Cr, Mo, Fe, Zn, Sn, Bi, Ce, La, Hf, Sr, Sb, Mg, Be, Re, Ta, Ti, Sc, Ge and related metals as an auxiliary agent. The catalyst can be used in an amination reaction for a large molecular weight polyether polyol, and is particularly active and selective for an amination reaction of a low molecular weight polyether polyol. The catalyst has a simple and economic manufacturing technique and good potential for future applications.

Supported catalyst used for synthesizing polyether amine, and manufacturing method

The present invention provides a method for preparing 1,5-pentanediol via hydrogenolysis of tetrahydrofurfuryl alcohol. The catalyst used in the method is prepared by supporting a noble metal and a promoter on an organic polymer supporter or an inorganic hybrid material supporter, wherein the supporter is functionalized by a nitrogen-containing ligand. When the catalyst is used in the hydrogenolysis of tetrahydrofurfuryl alcohol to prepare 1,5-pentanediol, a good reaction activity and a high selectivity can be achieved. The promoter and the nitrogen-containing ligand in the supporter are bound to the catalyst through coordination, thereby the loss of the promoter is significantly decreased, and the catalyst has a particularly high stability. The lifetime investigation of the catalyst, which has been reused many times or used continuously for a long term, suggests that the catalyst has no obvious change in performance, thus reducing the overall process production cost.

Catalyst for preparing 1,5-pentanediol via hydrogenolysis of tetrahydrofurfuryl alcohol, method and application thereof

An organic-base functionalized silicalite-1 molecular sieve-encapsulated metal nanoparticles catalyst and a preparation method therefor, as well as a method for preparing 1,2-pentanediol from biomass-derived furfuryl alcohol by hydrogenolysis using said catalyst. When the catalyst is used in a reaction preparing 1,2-pentanediol from furfuryl alcohol by hydrogenolysis, the catalyst has high hydrogenolysis activity under relatively mild reaction conditions, significantly increasing the conversion rate of furfuryl alcohol and 1,2-pentanediol selectivity in the reaction, while also not generating obvious byproducts furfuryl alcohol polymers; the catalyst has good stability and long life, and may be recovered for reuse after the reaction is complete by means of a simple filtration, greatly reducing reaction costs and separation difficulty.

Silicalite-1 molecular sieve-based catalyst and preparation method for 1,2-pentanediol using said catalyst

The present invention relates to a catalyst for fixed bed aniline rectification residue recycling and preparation method thereof. Based on the total weight of the catalyst, the catalyst comprises the following components in percentage by weight: 5-40% of an active component, 2-30% of a first cocatalyst component, 10-30% of a second cocatalyst component and the balance of carrier, wherein the active component is NiO; the first cocatalyst component is one or more of Fe, Mo, Cr or Co oxide; and the second cocatalyst component is one or more of La, Zr, Y or Ce oxide. The catalyst is prepared through co-precipitation. The catalyst shows high activity and stability in the waste liquid treatment process, and can still maintain high rectification residue cracking rate after reaction of 200 hours.

Catalyst for fixed bed aniline rectification residue recycling and preparation method

Disclosed is a method for preparing diamino-dicyclohexyl methane (HMDA) by hydrogenation of diamino-diphenyl methane (MDA). In the process, 4,4'-MDA used as the starting material is firstly hydrogenated to prepare 4,4&#x2032;-HMDA. When the activity of the catalyst is reduced, the feed is switched from 4,4&#x2032;-MDA to the mixture of 2,4&#x2032;-MDA and 4,4&#x2032;-MDA, and then when the conversion is stabilized, the feed is switched to 4,4&#x2032;-MDA again. The deactivated catalyst is activated on line by switching the feed to the mixture of 2,4&#x2032;-MDA and 4,4&#x2032;-MDA. 4,4&#x2032;-HMDA having the trans-trans isomer content of 16&#x2dc;24 wt % is produced, and the mixture of 2,4&#x2032;-HMDA and 4,4&#x2032;-HMDA is also produced, wherein the content of 2,4&#x2032;-HMDA in the mixture is 4&#x2dc;15 wt %.

Method for preparing diamino-dicyclohexyl methane

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Shandong, China

Qingmei Jiang