Catalyst used in fatty alcohol production with fatty acid methyl ester catalyzed hydrogenation technology, preparation method thereof, and application thereof

A fatty acid methyl ester, catalytic hydrogenation technology, applied in the preparation of organic compounds, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve the problem of poor catalyst reproducibility, complex preparation methods, There are many influencing factors, etc., to achieve good environmental benefits, simple preparation process, and low environmental pollution.

Active Publication Date: 2012-05-30
浙江嘉化能源化工股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the catalyst has good catalytic activity and is a substitute for CuCr catalyst, the preparation process of the catalyst requires neutralization and gelation reaction, the preparation method is relatively complicated, there are many influencing factors, it is not easy to control, and the catalyst reproducibility is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046](1) 31.6g copper nitrate, 5.7g zinc nitrate, 23.9g aluminum nitrate, 4.2g manganese nitrate and 26.7g nickel nitrate are dissolved in deionized water, be mixed with solute gross weight percentage and be 5% mixed solution, Put in the dropping funnel. 51.0g of anhydrous sodium carbonate was mixed with deionized water to make an aqueous solution of sodium carbonate containing 10% by weight of sodium carbonate, and put it into the dropping funnel.

[0047] (2) Add 16.9g of diatomaceous earth and 200g of deionized water into the beaker, mix to obtain the base solution, start stirring and raise the temperature to 55°C, and add the mixed solution in step (1) to the base solution in the beaker in parallel and sodium carbonate aqueous solution, the dropwise addition process maintains pH=6, and the temperature remains at 55 ° C. After the mixed solution in step (1) is dripped, adjust the pH to 9 with sodium carbonate aqueous solution to obtain a precipitated product;

[0048] (3)...

Embodiment 2

[0059] (1) 28.5g copper nitrate, 23.6g aluminum nitrate, 15.3g manganese nitrate and 38.8g nickel nitrate are dissolved in deionized water, are mixed with solute gross weight percentage and are 11% mixed solution, put into dropping funnel middle. 53.0g of anhydrous sodium carbonate was mixed with deionized water to make an aqueous solution of sodium carbonate containing 15% by weight of sodium carbonate, and put it into the dropping funnel.

[0060] (2) Add 22.8g of calcium carbonate and 200g of deionized water into the beaker, mix to obtain the base liquid, start stirring and heat up to 55°C, and add the mixed solution in step (1) and Aqueous sodium carbonate solution, keep pH = 5 during the dropping process, and keep the temperature at 55°C. After the mixed solution in step (1) is dropped, adjust the pH to 9 with aqueous sodium carbonate solution to obtain a precipitated product;

[0061] (3) Aging the precipitated product in step (2) at 55°C for 4h, after filtering, washin...

Embodiment 3

[0071] (1) Dissolve 35.6g copper nitrate, 28.1g zinc nitrate, 11.7g aluminum nitrate and 2.5g manganese nitrate in deionized water, prepare a mixed solution containing 15% of the total weight of solute, and put it into the dropping funnel middle. 45.2g of anhydrous sodium carbonate was mixed with deionized water into an aqueous solution of sodium carbonate containing 8% by weight of sodium carbonate, and put into the dropping funnel.

[0072] (2) Add 19.8g of calcium carbonate and 200g of deionized water into the beaker, mix to obtain the base liquid, start stirring and heat up to 60°C, and add the mixed solution in step (1) and Aqueous sodium carbonate solution, keep pH = 6 during the dropping process, and keep the temperature at 60°C. After the mixed solution in step (1) is dropped, adjust the pH to 10 with aqueous sodium carbonate solution to obtain a precipitated product;

[0073] (3) Aging the precipitated product in step (2) at 60°C for 3h, after filtering, washing the ...

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PUM

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Abstract

The invention discloses a catalyst used in fatty alcohol production with a fatty acid methyl ester catalyzed hydrogenation technology. The catalyst is composed of, by weight: 18-66% of a mixture of copper oxide and zinc oxide, 0-40% of one or two selected from manganese oxide and nickel oxide, 5-17% of alumina, and 0-45% of a carrier, wherein the carrier is diatomite or calcium carbonate. The catalyst is advantaged in environment friendliness, high activity, good product stability, and the like. The invention also discloses a preparation method of the catalyst used in fatty alcohol productionwith the fatty acid methyl ester catalyzed hydrogenation technology. The method comprises steps that: at least two soluble salts of copper, zinc, manganese, nickel, and aluminum are dissolved in water, such that a mixed solution is prepared; water, or a mixture of water and the carrier is adopted as a base solution; an aqueous solution of sodium carbonate and the mixed solution are dropped into the base solution with a co-current flow; when dropping is finished, a precipitate is obtained; the precipitate is aged, filtered, washed, dried, roasted, and pressed, such that a finished product is obtained. The preparation method is advantaged in simple technology, high operability, easy industrialization, and the like.

Description

technical field [0001] The invention relates to the field of catalysts and their preparation, in particular to a catalyst for catalytic hydrogenation of fatty acid methyl esters to fatty alcohols, a preparation method and application thereof. Background technique [0002] Fatty alcohols, especially natural high-grade fatty alcohols, are the basic raw materials for fine chemical products such as detergents, surfactants, and plastic plasticizers. There are thousands of fine chemical products produced from fatty alcohol, which are widely used in chemical industry, petroleum, metallurgy, textile, machinery, mining, construction, plastic, rubber, leather, papermaking, transportation, food, medicine and health, daily use chemical and agricultural fields. [0003] There are two main routes for the industrial production of fatty alcohols: one is to produce fatty alcohols with olefins as raw materials; the other is to use natural oils as raw materials to transesterify them with meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/889B01J27/232B01J23/80C07C29/149C07C31/125
Inventor 管建忠沈新华汪建平沈高庆童年印祖伟宋春秀静桂兰郭永刚杜俊烽
Owner 浙江嘉化能源化工股份有限公司
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