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Device for producing antioxidant 2,6-di-tert-butyl-4-methylphenol

A technology of di-tert-butyl and methyl phenol is applied in the preparation of organic compounds, chemical instruments and methods, organic chemistry, etc., and can solve complex problems

Inactive Publication Date: 2018-07-03
CHENGDU WEI & SI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing production devices are relatively complicated. 2,6-di-tert-butyl-4-methylphenol is used as an antioxidant. The pros and cons of its production devices have important economic significance for improving product quality and reducing by-product content.

Method used

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  • Device for producing antioxidant 2,6-di-tert-butyl-4-methylphenol
  • Device for producing antioxidant 2,6-di-tert-butyl-4-methylphenol
  • Device for producing antioxidant 2,6-di-tert-butyl-4-methylphenol

Examples

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example 1

[0008] Production raw materials and dosage

[0009] p-cresol

Industrial grade, ≥98%

1500kg

Isobutylene

Industrial grade, ≥90%

2400kg

ethanol

Industrial grade, 95%

1000kg

concentrated sulfuric acid

Industrial grade, 98%

70kg

Sodium carbonate

industrial grade

Appropriate amount

[0010] Antioxidant 2,6-di-tert-butyl-4-methylphenol production equipment, mainly including: storage tank (F101), bromobutene gasification tank (F102), raw material pump (J101), alkylation neutralization Reactor (D101), delivery pump (J102~J105), alkylation washing tank (L101), centrifuge (L102, L104), melting washing tank (L103), recrystallization reactor (D102), drying oven (L105) , an ethanol distillation tower (E101), a condenser (C101), and an ethanol storage tank (F103), wherein the storage tank (F101) is used to store sulfuric acid, wherein the delivery pump (J103) is connected to the alkylation washing kettle (L101)...

example 2

[0015] Production raw materials and dosage

[0016]

[0017]

[0018] Antioxidant 2,6-di-tert-butyl-4-methylphenol production equipment, mainly including: storage tank (F101), bromobutene gasification tank (F102), raw material pump (J101), alkylation neutralization Reactor (D101), delivery pump (J102~J105), alkylation washing tank (L101), centrifuge (L102, L104), melting washing tank (L103), recrystallization reactor (D102), drying oven (L105) , an ethanol distillation tower (E101), a condenser (C101), and an ethanol storage tank (F103), wherein the storage tank (F101) is used to store sulfuric acid, wherein the delivery pump (J103) is connected to the alkylation washing kettle (L101), The centrifuge (L102) is connected, and the delivery pump (J104) is connected with the recrystallization reactor (D102) and the centrifuge (L104) respectively, wherein the storage tank (F101) has a total volume of 2.5m 3 , The diameter of the impeller of the raw material pump (J101) is 13...

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PUM

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Abstract

Provided is a device for producing an antioxidant 2,6-di-tert-butyl-4-methylphenol. The device includes: a storage tank (F101), a bromobutene gasification tank (F102), a raw material pump (J101), an alkylation neutralization reactor (D101), transfer pumps (J102-J105), an alkylation water washing kettle (L101), centrifuges (L102, L104), a melting water washing kettle (L103), a recrystallization reactor (D102), a drying oven (L105), an ethanol distillation tower (E101), a condenser (C101) and an ethanol storage tank (F103), wherein the storage tank (F101) is used for storing sulfuric acid, the transfer pump (J103) is connected with the alkylation water washing kettle (L101) and the centrifuge (L102) respectively, the transfer pump (J104) is connected with the recrystallization reactor (D102)and the centrifuge (L104) respectively, and the storage tank (F101) has a full volume of 2.3-2.5 m<3>.

Description

technical field [0001] The invention relates to a compound synthesis device, in particular to a production device of antioxidant 2,6-di-tert-butyl-4-methylphenol. Background technique [0002] 2,6-di-tert-butyl-4-methylphenol is an excellent general-purpose phenolic antioxidant, non-toxic, non-flammable, non-corrosive, good storage stability, and can inhibit or delay the oxidation of plastic or rubber Degradation and prolong service life. It is an excellent antioxidant additive for various petroleum products, and is widely used in various lubricating oils, gasoline, paraffin and various raw material oils to prevent the acid value or viscosity of lubricating oils and fuel oils from increasing. As a food antioxidant and stabilizer in food-grade plastics and packaged foods, it can delay food rancidity. It can also be used for polyethylene (PE), polystyrene (PS), PP (polypropylene), polyvinyl chloride, ABS resin, polyester, cellulose resin and foam plastic (especially white or...

Claims

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Application Information

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IPC IPC(8): C07C37/14C07C37/68C07C37/84C07C37/72C07C39/06
CPCC07C37/14C07C37/685C07C37/72C07C37/84C07C39/06
Inventor 关艮安
Owner CHENGDU WEI & SI TECH CO LTD
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