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[Chemical Knowledge]：Production and manufacturing method and process flow of aminomethylbenzoic acid

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Aminomethylbenzoic acid, also known as amine p-carboxybenzoate, is an organic compound widely used in the field of chemical production raw materials. It has a variety of manufacturing methods, and here we will introduce two common methods in detail: chemical synthesis and biological fermentation.

1. chemical synthesis

chemical synthesis is a common method for manufacturing aminomethylbenzoic acid, which mainly converts raw materials into target products through chemical reactions. The following are the specific steps:

1. Preparation of benzoic acid: benzoic acid is reacted with sodium hydroxide to form sodium benzoate. This step is to protect the carboxyl group in benzoic acid so that it will not be destroyed in the subsequent reaction.
2. Amination reaction: sodium benzoate reacts with ammonia to generate ammonium benzoate.
3. Decarboxylation reaction: Under heating conditions, ammonium benzoate decarboxylation reaction occurs to generate aminomethylbenzoic acid.

The advantage of this method is that it can be produced on a large scale and has a high yield. However, the production process will produce more waste, causing a certain pressure on the environment.

2. biological fermentation method

biological fermentation method is a more environmentally friendly aminomethylbenzoic acid manufacturing method, through the role of microorganisms to convert raw materials into target products. The following are specific steps:

1. Culture of microorganisms: Select appropriate microbial strains and culture them.
2. Raw material input: benzoic acid is put into the fermentation tank as carbon source and energy source, and appropriate amount of nitrogen source, phosphorus source and other nutrients are added at the same time.
3. Fermentation process: The microorganism converts benzoic acid to aminomethylbenzoic acid in the fermentation process.
4. product extraction: by centrifugation, filtration and other methods to separate microbial cells and fermentation broth, further extraction and purification of aminomethylbenzoic acid. The advantage of

this method is that the production process is more environmentally friendly and less waste. However, the fermentation process needs to control more parameters, the production process is more complex.

, whether chemical synthesis or biological fermentation, need to be carried out under strict production conditions to ensure product quality and purity. At the same time, the treatment of waste and environmental protection also need to be paid full attention to promote the green development of chemical production.

In the actual production process, a suitable manufacturing method can be selected according to specific production requirements and conditions. With the continuous progress of science and technology, the manufacturing method of aminomethylbenzoic acid will continue to optimize and improve, improve production efficiency, reduce environmental pressure, and make greater contributions to the development of chemical production raw materials.

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