Process equipment for producing chlorinated tert-butane
The one-step preparation of tert-butane chloride using a tubular reactor, utilizing chlorine and isobutylene as raw materials, solves the problems of complex processes and expensive catalysts in existing technologies, achieving efficient and safe chlorination production, improving product yield, reducing equipment and material requirements, and enabling continuous and stable production.
Patent Information
- Application Number
- CN202520213910.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-02-11
AI Technical Summary
Existing tert-butane chloroprocesses are cumbersome and complex, and the catalysts used are expensive, resulting in high production costs.
A one-step process for preparing tert-butane chloride using a tubular reactor is employed, utilizing chlorine gas and isobutylene as raw materials. The reaction is carried out through Bernoulli's principle, avoiding the use of catalysts. The process is simple, safe, and reliable.
It improved production efficiency and product yield, reduced equipment and material requirements, avoided catalyst contamination, and achieved continuous and stable production.
Smart Images
Figure CN223747591U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to liquid chlorine chemical production equipment technical field, concretely relates to a process equipment of production chlorinated tertiary butane. BACKGROUND
[0002] Chlorinated tertiary butane, also known as tertiary butyl chloride, 1,1-dimethyl chloroethane, is an important organic chemical intermediate, which is widely used in the fields of medicine, pesticide, rubber, plastic additive and base catalytic synthesis, etc.
[0003] At present, the main method in industry is to react tertiary butanol with hydrochloric acid or hydrogen chloride to generate chlorinated tertiary butane, which needs the participation of catalyst, and the production process is complicated, and the catalyst of part of the process is expensive, causing the increase of production cost. UTILITY MODEL CONTENT
[0004] The utility model solves the above -mentioned problem, and provides a process equipment of production chlorinated tertiary butane.
[0005] The utility model is through following technical scheme realizes: a process equipment of production chlorinated tertiary butane, including tubular reactor, reaction liquid circulating tank, evaporation tower and rectifying tower, its characterized in that, tubular reactor's export connects reaction liquid circulating tank, reaction liquid circulating tank's top export connects evaporation tower cooler, bottom export connects reaction circulating pump, reaction circulating pump's export one end is connected with tubular reactor through reaction cooler circulation connecting pipe, and the other end connects evaporation tower, the tower top export of evaporation tower connects evaporation tower cooler, and the tower bottom export is connected with rectifying tower through evaporation tower discharge pump, and the bottom side of evaporation tower is circularly connected with evaporation tower reboiler;The tower top export of rectifying tower connects rectifying tower cooler, and the tower bottom export is connected with rectifying tower through rectifying tower discharge pump and takes out material, and the bottom side of rectifying tower is circularly connected with rectifying tower reboiler.
[0006] Further, the import material of the tubular reactor is chlorine and isobutene.
[0007] The utility model has the advantages that the utility model uses chlorine and isobutene as raw materials, uses tubular reactor to continuously and stably produce chlorinated tertiary butane, the reactor uses Bernoulli principle to fully mix and react two kinds of materials, improves production efficiency, and the product yield is high.
[0008] The utility model uses tubular reactor one-step method to prepare chlorinated tertiary butane, the process production is gas phase reaction without using catalyst, the process is simple, safe and reliable, requires low equipment material, and can continuously and stably produce, avoids the problem of large pollution of traditional catalyst production chlorinated tertiary butane, and improves product yield. DRAWING DESCRIPTION
[0009] Figure 1The utility model discloses a structure schematic view.
[0010] In the drawing, 1 is a tubular reactor, 2 is a reaction liquid circulating tank, 3 is a reaction circulating pump, 4 is a reaction cooler, 5 is an evaporation tower, 6 is an evaporation tower reboiler, 7 is an evaporation tower cooler, 8 is an evaporation tower discharge pump, 9 is a rectifying tower, 10 is a rectifying tower reboiler, 11 is a rectifying tower cooler, and 12 is a rectifying tower discharge pump. DETAILED DESCRIPTION
[0011] In order to make the utility model's purpose, technical scheme and beneficial effect more clearly clear, below combining with example to the technical scheme in the utility model further explanation.
[0012] As Figure 1 The utility model discloses a process equipment of producing chlorinated tertiary butane, including tubular reactor 1, reaction liquid circulating tank 2, evaporation tower 5 and rectifying tower 9, tubular reactor 1 adopts to spray the tubular reactor 1 of column, and the import material of tubular reactor 1 is chlorine and isobutene respectively, and the outlet of tubular reactor 1 is connected with reaction liquid circulating tank 2, and the top outlet of reaction liquid circulating tank 2 is connected with evaporation tower cooler 7, and the bottom outlet is connected with reaction circulating pump 3, and one end of the outlet of reaction circulating pump 3 is connected with tubular reactor 1 through reaction cooler 4, and the other end is connected with evaporation tower 5, and the tower top outlet of evaporation tower 5 is connected with evaporation tower cooler 7, and the tower bottom outlet is connected with rectifying tower 9 through evaporation tower discharge pump 8, and one side of the bottom of evaporation tower 5 is connected with evaporation tower reboiler 6, and the tower top outlet of rectifying tower 9 is connected with rectifying tower cooler 11, and the tower bottom outlet is connected with rectifying tower discharge pump 12, and one side of the bottom of rectifying tower 9 is connected with rectifying tower reboiler 10.
[0013] Process flow: chlorine and isobutene enter tubular reactor 1 and react simultaneously, and the material ratio is controlled as chlorine: isobutene = 1:2.5, and the chlorinated tertiary butane generated in the reaction is absorbed by the reaction liquid and then enters reaction liquid circulating tank 2, and reaction circulating pump 3 delivers the reaction liquid to reaction cooler to cool the material, and the cooled material enters tubular reactor 1 again to circulate, and the reaction liquid is also discharged to evaporation tower 5.
[0014] The gas absorbed by reaction liquid circulating tank 2 top flows to evaporation tower cooler 7 through the pipeline on the top of the tank to be cooled and recovered.
[0015] Evaporation tower reboiler 6 uses steam heating to separate the hydrogen chloride dissolved in the reaction liquid, and the separated hydrogen chloride is discharged from the top of evaporation tower 5 to evaporation tower cooler 7 to be cooled and recovered, and the byproduct hydrogen chloride is produced.
[0016] The crude chlorinated tertiary butane from the bottom of the evaporation tower 5 is sent to the rectification tower 9 through the evaporation tower 5 kettle discharge pump. The crude chlorinated tertiary butane is further separated by the rectification tower reboiler 10 using steam heating, and the separated chlorinated tertiary butane is discharged from the top of the rectification tower 9502 to the rectification tower cooler 11 for cooling and recovery, and the product chlorinated tertiary butane is produced. The material at the bottom of the rectification tower 9 is taken out through the rectification tower 9 kettle discharge pump to produce the byproduct methyl allyl chloride.
[0017] In addition to the technical features described in the specification, the remaining technical features are known to those skilled in the art.
Claims
1. A process apparatus for producing chlorinated tertiary butane, comprising a tubular reactor (1), a reaction liquid circulating tank (2), an evaporation column (5), and a rectification column (9), characterized by, The outlet of the tubular reactor (1) is connected with a reaction liquid circulating tank (2), the top outlet of the reaction liquid circulating tank (2) is connected with an evaporation tower cooler (7), the bottom outlet is connected with a reaction circulating pump (3), one end of the outlet of the reaction circulating pump (3) is connected with the tubular reactor (1) through a reaction cooler (4), the other end is connected with an evaporation tower (5), the overhead outlet of the evaporation tower (5) is connected with the evaporation tower cooler (7), the bottom outlet is connected with a rectifying tower (9) through an evaporation tower discharge pump (8), one side of the bottom of the evaporation tower (5) is connected with an evaporation tower reboiler (6) in circulation; the overhead outlet of the rectifying tower (9) is connected with a rectifying tower cooler (11), the bottom outlet discharges the material through a rectifying tower discharge pump (12), one side of the bottom of the rectifying tower (9) is connected with a rectifying tower reboiler (10) in circulation.
2. A process apparatus for producing chlorinated tertiary butane according to claim 1, characterized by, The inlet material of the tubular reactor (1) is respectively chlorine and isobutene.