Preparation : benzaldehyde widely exist in plants, especially in the famliy, mainly in the form of glycosides in the plant stem bark, leaves or seeds, for example, the amygdalin amygdalin. Benzaldehyde methods of industrial production has two main categories : respectively toluene and benzene as raw materials. Preparation Laboratory also used catalyst (palladium / barium sulfate) to reinstate the benzoyl chloride method. 1. Toluene chloride hydrolysis of toluene in raw materials, under the illumination for chlorination, with mixed benzyl chloride. The consumption of raw materials fixed : toluene 1700kg / t, chlorine is 3000 / t, Soda 1500kg / t. 2. Benzyl alcohol oxidation of benzyl chloride hydrolysis in benzyl alcohol, and then oxidized benzaldehyde. 3. Toluene direct oxidation of toluene benzaldehyde acid oxidation of the intermediate product. ��?benzene toluene methanol ��?benzaldehyde ��?acid. 4. Benzene raw materials to the pressure and three aluminum chloride, benzene and carbon monoxide and hydrogen chloride reacted. Industrial benzaldehyde content at 98.5%.
purposes : medicine, dyes, spices of intermediates. Among used in the production of ecstasy benzaldehyde, lauric acid, lauroyl aldehyde, Pin Lu, benzoic acid benzyl ester, Benzylidene aniline, Benzalacetone so. Blending free for flavor, such as food flavor.
