Method for continuously separating benzyl benzoate oil residues with novel oil residue treatment device

Abstract

The invention provides a method for continuously separating benzyl benzoate oil residues with a novel oil residue treatment device. The oil residue treatment device comprises an oil residue pretreatment kettle, an oil residue transfer pump, an oil residue activation tank, a centrifuge, a transfer trough, a filter liquor transfer pump and a filter liquor sedimentation and stratification tank; the top of the oil residue pretreatment kettle is provided with a feeding port, and the bottom of the oil residue pretreatment kettle is provided with a discharging port connected to the input end of the oil residue transfer pump through a discharging pipe; and the output end of the oil residue transfer pump is connected to the centrifuge and the oil residue activation tank separately. According to theoil residue treatment device, the benzyl benzoate oil residues can be continuously separated under the conditions of energy saving and environmental protection. Activated assistants adopted in the process are special compound activated assistants designed for continuous separation of the benzyl benzoate oil residues; and the activated assistants can diffuse in the benzyl benzoate oil residues quickly and uniformly, and the smooth implementation of the subsequent centrifugal separation process of the activated oil residues is ensured.

Description

technical field [0001] The invention relates to an oil residue treatment device, in particular to a method for separating benzyl benzoate oil residue by using a novel benzyl benzoate oil residue treatment device. Background technique [0002] Benzyl benzoate can be used as a plasticizer, a solvent for drugs, artificial musk, vanillin and other fragrances, a floral fragrance fixative, etc. There are many methods for synthesizing benzyl benzoate, but the method of extracting benzyl benzoate from the leftovers of benzaldehyde produced by oxidation of toluene to benzoic acid or dibenzyl ether has the advantages of low cost, energy saving and emission reduction. In the method for extracting benzyl benzoate from the leftovers, soda ash and water used in the rectification of the leftovers and the neutralization section will all bring in solid impurities, solid impurities, benzyl benzoate and water, and form oil residue. Oil residue solid waste needs to be sent to a qualified hazar...

AI Technical Summary

Problems solved by technology

There are many methods for synthesizing benzyl benzoate, but the method of extracting benzyl benzoate from the leftovers of benzaldehyde produced by oxidation of toluene to benzoic acid or dibenzyl ether has the advantages of low cost, energy saving and emission reduction. In the method for extracting benzyl benzoate from leftovers, soda ash and water are used in the rectification and neutralization sections of leftovers, which will bring in solid impurities, solid impurities, benzyl benzoate and water, and form oil residue

Oil residue solid waste needs to be sent to a qualified hazardous waste treatment institution for centralized treatment, which is costly and difficult

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