Method for preparing rare earth type hydrochlorination catalyst of acetylene comprising tin

A technology of acetylene hydrochlorination and rare earth chloride, applied in physical/chemical process catalysts, hydrogen halide addition preparation, chemical instruments and methods, etc., can solve the problems of poor thermal stability, high price, easy sintering, etc. Low cost, simple operation, good catalytic activity effect

Inactive Publication Date: 2012-05-02
INNER MONGOLIA UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the single-component noble metal catalyst has much better catalytic activity than the single-component non-noble metal catalyst, but its application in acetylene hydrochlorination is greatly limited due to its high price, relatively poor thermal stability and easy sintering. Large-scale industrial production is still not possible, but the catalytic activity of multi-component composite catalysts is better than that of single-component catalysts, and its price is low and pollution-free, which is expected to achieve large-scale industrial application

Method used

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  • Method for preparing rare earth type hydrochlorination catalyst of acetylene comprising tin
  • Method for preparing rare earth type hydrochlorination catalyst of acetylene comprising tin
  • Method for preparing rare earth type hydrochlorination catalyst of acetylene comprising tin

Examples

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Comparison scheme
Effect test

Embodiment 1

[0026] Example 1: Weigh 1.27gSnCl 2 ·2H 2 O, 0.43gCeCl 3 , 1.04gCuCl and 0.51gBiCl 3 In a beaker, add 4mL of concentrated hydrochloric acid to dissolve, and then add deionized water to make the dipping solution; weigh 10g activated carbon into the dipping solution, stir until evenly dipped, the dipping time is 24h, and then put it in an oven at 85℃ Dry for 10h, calcinate at 150℃ for 4h to obtain a kind of SnCl containing tin 2 -CeCl 2 -CuCl-BiCl 3 / C Acetylene hydrochlorination catalyst.

Embodiment 2

[0027] Example 2: Weigh 1.24g SnCl 2 ·2H 2 O, 0.41gCeCl 3 , 1.22gCuCl and 0.45gBi(NO 3 ) 3 ·5H 2 O in a beaker, add 5mL concentrated hydrochloric acid to dissolve, and then add deionized water to prepare an immersion solution; weigh 10g of cerium-zirconium powder (burned at 400°C for two hours) into the immersion solution, stir until evenly dipped, The immersion time is 24 hours, and then it is put into an oven and dried for 10 hours at 85°C, and baked at 150°C for 4 hours to obtain a tin-containing rare earth SnCl 2 -CeCl 2 -CuCl-BiCl 3 / Cerium-zirconium powder acetylene hydrochlorination catalyst.

Embodiment 3

[0028] Example 3: Weigh 1.42gSnCl 2 ·2H 2 O, 1.45gCuCl and 0.33gBi(NO 3 ) 3 ·5H 2 O in a beaker, add 5mL concentrated hydrochloric acid to dissolve, and then add deionized water to prepare an immersion solution; weigh 10g of cerium oxide (cerium nitrate burned at 400°C for two hours) into the immersion solution, stir until evenly dipped, The immersion time is 24 hours, and then it is put into an oven and dried for 10 hours at 85°C, and baked at 150°C for 4 hours to obtain a tin-containing rare earth SnCl 2 -CuCl-BiCl 3 / CeO acetylene hydrochlorination catalyst.

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Abstract

The invention disclose a method for preparing rare earth type hydrochlorination catalyst of acetylene comprising tin, which belongs to the field of preparing the hydrochlorination catalyst of acetylene. The catalyst comprises stannic chloride, rare earth chloride, other metal chlorides and carriers, wherein the rare earth chloride is adopted as cerium chloride or lanthanum chloride, and the carriers are cerium-zirconium powder or zirconia. The catalyst is prepared by soaking method, can be applied to fixed-bed reactors, has low cost, has no pollution, and has good catalytic activity and high selection in the process of producing vinyl chloride by hydrochlorination of acetylene.

Description

Technical field [0001] The invention relates to a preparation method of an acetylene hydrochlorination catalyst, in particular to a preparation method of a tin-containing rare earth acetylene hydrochlorination catalyst. Background technique [0002] Vinyl chloride (VCM) is a monomer for the synthesis of polyvinyl chloride (PVC). Almost all vinyl chloride (98%) in the world is used to produce polyvinyl chloride. Polyvinyl chloride is one of the five general synthetic resins. It has good physical and mechanical properties. It is used in the production of building materials, packaging materials, electronic materials and daily consumer goods. It is widely used in industry, agriculture, transportation, packaging and other fields. China's plastics industry has formed a relatively complete industrial system and has become a basic material industry that goes hand in hand with steel, cement, and wood. As a new type of material, its application fields have far surpassed the above three mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/135C07C21/06C07C17/08
Inventor 胡瑞生宋丽峰冯银苗胡佳楠黄卫民刘粉荣刘鹰
Owner INNER MONGOLIA UNIVERSITY
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