Wanhua Chemical Group Co., Ltd.

Congying Zhang

Yuan Li

Xin Li

Qingmei Jiang

Jinhong Song

Hao Chen

Zhenguo Liu

Weiqi Hua

Lei Tang

Xiaolong Wang

Zhipeng Liu

Shujie Ren

Hao Ding

Jian Wu

Hui Wang

Zaigang Yang

Zhongying Chen

Cong Wang

Xueli Yu

Bingbo Hu

Zilin Ni

Meng Zhou

Zhaoxing Liu

Shan Gao

Weijia Wang

Xiucai Du

Jun Qu

Shanjian Cao

Dewei Yu

Hua Mei

Xiaoli Sun

Ningning Wang

Changkun Chu

Zhanyu Gao

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 relates to a catalyst for aminating a polyether polyol and preparation method thereof and a method of preparing a polyetheramine using the catalyst. The catalyst has active components and a carrier. The active components are Ni, Cu, and Pd. The method of preparing the catalyst comprises the following steps: using a metal solution or a metal melt impregnated carrier, obtaining a catalyst precursor; and drying and calcinating the obtained catalyst precursor, so as to obtain a catalyst. By introducing the active component Pd in the catalyst, the present invention clearly improves selectivity of an amination catalyst with respect to a preaminated product, and increases raw material conversion rate.

Catalyst for aminating polyether polyol and preparation method thereof and method of preparing polyetheramines using catalyst thereof

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

Congying Zhang