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Synthetic low carbon alcohol catalyst and method for making the same

A technology of catalysts and low-carbon mixed alcohols, applied in chemical instruments and methods, preparation of hydroxyl compounds, preparation of organic compounds, etc., can solve catalyst anti-toxicity, stability, insufficient mechanical strength and service life, complex preparation process, environmental pollution, etc. problem, achieve the effect of anti-toxic industrial performance index, simple preparation method, and avoid environmental pollution problem

Inactive Publication Date: 2004-03-17
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Other catalysts, such as U.S. patent catalysts No. 4122110, 3326956 and 4291126, all select chromium-containing composition systems, which may bring some environmental pollution problems more or less
[0013] 2. The preparation process is complicated
In addition, there are obvious deficiencies in the anti-toxicity, stability, mechanical strength and lifespan of the catalyst, because this is the common deficiency of the catalyst prepared by the precipitation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0040]Prepare the catalyst by co-melting after mixing: 66.7 parts of selected magnetite, 23.3 parts of copper oxide, 0.3 parts of zinc oxide, 1.3 parts of manganese oxide, 1.3 parts of zirconia, 2.9 parts of potassium nitrate, 0.7 parts of boric acid, and 2.7 parts of cobalt oxide After mixing evenly with 0.7 part of aluminum oxide, put it into the furnace, raise the temperature to 1800K, pour it out after melting evenly, let it cool down to room temperature naturally, then crush and sieve to get 20-40 mesh, that is, the co-melting synthetic Low-carbon mixed alcohol catalyst.

[0041] The sample number is RR1.

[0042] Melt-impregnation method (potassium, boron component impregnation) preparation catalyst: take 66.7 parts of selected magnetite, 23.3 parts of copper oxide, 0.3 part of zinc oxide, 1.3 parts of manganese oxide, 1.3 parts of zirconium oxide, 2.7 parts of cobalt oxide, 0.7 parts of aluminum, mix evenly, put into the furnace, heat up to 1800K, pour out after meltin...

example 2

[0044] Catalyst composition: 42.0 parts of selected magnetite, 43.2 parts of industrial copper oxide, 4.0 parts of cobalt oxide, 3.0 parts of potassium hydroxide, 2.0 parts of aluminum oxide, 1.0 part of manganese oxide, and 0.5 part of boric acid.

[0045] The catalyst for the synthesis of low-carbon mixed alcohols was prepared by co-melting after mixing, and the sample number is RR2.

[0046] The catalyst for the synthesis of low-carbon mixed alcohols was prepared by melting-impregnation method, and the sample number is RQ2. Example 3

example 3

[0047] Catalyst composition: 50.4 parts of selected magnetite, 29.0 parts of industrial copper oxide, 4.0 parts of cobalt oxide, 5.4 parts of potassium nitrate, 0.5 parts of boric acid, 1.0 part of manganese oxide, 3.0 parts of aluminum oxide, and 1.0 part of zinc oxide.

[0048] The catalyst for the synthesis of low-carbon mixed alcohols was prepared by co-melting after mixing, and the sample number is RR3.

[0049] The catalyst for the synthesis of low-carbon mixed alcohols was prepared by melting-impregnation method, and the sample number is RQ3. Example 4

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Abstract

The present invention provides one kind of catalyst synthesized with oxide, and the catalyst has high mechanical strength, high heat resistance, high antitoxic performance, high activity, high alcohol-forming selectivity and high C2+OH selectivity. The catalyst makes it possible for CO and H2 to react to produce low-carbon C1-C5 alcohol mixture. The catalyst is prepared through high temperature melting process, including co-melting process and melting-soaking process. The present invention has easy-to-obtain material, simple preparation process, low cost and no pollution, and is suitable for industrial production.

Description

[0001] Field: [0002] The invention relates to a method for directly converting carbon monoxide and hydrogen into low-carbon alcohols by using a catalyst. More specifically, it is an iron-copper-based composite oxide heterogeneous catalyst prepared by a simple melting method, which can selectively hydrogenate carbon monoxide into low-carbon alcohols (containing 1-5 carbons). technical background: [0003] There are many technology and invention patents for the production of catalytic hydrogenation of carbon monoxide, especially for the production of hydrocarbons and the production of methanol. Now only make an analysis on the patented method of converting alcohol products with this method. [0004] A method disclosed in U.S. Patent No. 4,235,801 is used to produce ethanol from synthesis gas using a catalyst mainly containing rhodium and iron. [0005] U.S. Patent No. 3326956 discloses a method for producing oxygen-containing hydrocarbons, especially methanol. The specific ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/72C07C29/156
Inventor 苏运来郭益群王向宇王文祥张元珍关新新
Owner ZHENGZHOU UNIV
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