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[Chemical Knowledge]：Production process and preparation method of n-amyl alcohol

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Amyl alcohol is an important chemical raw material, used in the production of solvents, plastics, rubber, spices, coatings and other chemical products. This article will introduce the production process and preparation method of n-pentanol.

1. production process

1. Petrochemical method: mainly by the synthesis of light cracking products of petroleum, the first light petroleum products after desulfurization with hot sodium hydroxide catalytic recombination, and then with ethanol or methanol hydrogenation is amyl alcohol.

2 persimmon oil method: the use of persimmon oil and water acid solution to produce n-pentanol.

3. isobutane oxidation method: the use of isobutane oxidation reaction, the generation of n-pentanal and cyclopentanol, and then through the reduction reaction to produce n-pentanol.

2. preparation method

1. Methanol hydrogenation method: methanol and hydrogen are hydrogenated under the action of a catalyst at a certain flow rate to obtain n-butanol, and then n-pentanol is obtained by secondary hydrogenation reaction.

2. Isobutane oxidation reduction method: the use of isobutane oxidation reaction, the generation of n-pentanal and cyclopentanol, and then through the reduction reaction of n-pentanol.

3. Persimmon oil method: Persimmon oil and water are reacted to produce n-pentanol.

4. Proton exchange membrane method: through the use of proton exchange membrane, isoprene propionaldehyde is reduced to n-valeraldehyde, and then through the reduction reaction to produce n-pentanol.

5. biological fermentation method: the use of microbial metabolism to produce n-amyl alcohol, the first use of sugar fermentation to produce ethanol, and then through the reduction reaction of yeast to convert it into n-amyl alcohol.

above is the preparation method of n-pentanol, in which the catalyst is the key factor in the preparation, the choice of different catalysts will affect the selectivity and yield of the product. In addition, it is necessary to pay attention to safety issues in the production process to avoid accidents such as fires and explosions.

n-pentanol is an important chemical raw material, its production process and preparation method involves many aspects, it is necessary to choose the most appropriate method according to the actual situation. At the same time, we also need to strengthen the research of chemical products, and constantly improve the quality and safety of products.