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Novel process flow and apparatus for decomposing phenate

A technology of process flow and phenoxide, which is applied in the field of new process flow and equipment of phenoxide decomposition, can solve the problems of phenoxide environmental pollution, etc., and achieve the effects of low operating cost, reduced stirring system, and stable product quality

Inactive Publication Date: 2009-04-15
UNIV OF SCI & TECH LIAONING
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Problems solved by technology

[0013] The main point of the process production process of the present invention is to thoroughly solve the environmental pollution problem caused by the decomposition of phenoxide, save energy and reduce consumption, and reduce project investment

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  • Novel process flow and apparatus for decomposing phenate

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Embodiment Construction

[0045] The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

[0046] As shown in Figure 1, the new technological process of phenate decomposition of the present invention is characterized in that comprising the following steps:

[0047] (a) the sulfuric acid that net phenate and concentration are 40%~98% enters mixer in proportion, and weight ratio is net phenate: sulfuric acid=1: 0.6~1.2, flow velocity is 0.1~0.5m / s,

[0048] (b) The mixed liquid enters the 1# reactor 4 at a high speed, the flow rate is 1.5-2.5m / s, the reaction temperature: 100-150°C, the reaction pressure: 0.2-1.0MPa,

[0049](c) The gas phase and liquid phase produced by 1# reactor 4 enter 2# reactor 7 through the injector, the reaction temperature: 60~70℃, the reaction pressure: 0.1~0.5MPa,

[0050] (d) The reaction solution enters the separator 8 to separate the corresponding product crude phenol and sodium sulfate waste water....

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Abstract

The invention relates to the technique field of coal tar processing in the metallurgical carbonization industry, in particular to a new technological process and equipment for phenolate decomposition in the middle production procedures in coal tar processing devices. The technological process comprises the following steps: clean phenolate and 40%-98% of sulfuric acid in a weight proportion of 1:0.6-1.2 are introduced into a mixer at low speed; the mixing liquid enters a reactor 1# at high speed; the produced gas phase and liquid phase enter a reactor 2# through a jet; the reaction solution enters a separator so that corresponding products, crude phenol and waste sodium sulfate solution are separated; waste gas produced in the separator and a production tank is cleaned with new base or clean phenolate in a Venturi tube and then exhausted into the atmosphere. The equipment includes a clean sodium phenolate tank, a gas-liquid mixer, a product tank, transport pipelines for various raw materials and products, valves and pipe peep mirrors arranged in the pipelines, the reactor 1#, the reactor 2# and a product separator. The invention is applicable to technology renovation and establishment projects in coal tar processing industry and can reduce environment pollution, save energy and increase effect.

Description

technical field [0001] The invention relates to the field of coal tar processing process routes in the metallurgical coking industry, specifically, a new process flow and equipment for phenol salt decomposition in the intermediate production process of coal tar processing devices, and is suitable for technical transformation and new construction projects in the coal tar processing industry. Background technique [0002] The existing domestic and foreign coal tar processing industry phenate decomposition production process is generally sulfuric acid intermittent decomposition, sulfuric acid continuous decomposition and carbon dioxide decomposition and other three technological processes. [0003] One is to adopt the technological process of intermittent decomposition of sulfuric acid. [0004] Sodium phenoxide is pumped to the decomposer by the sodium phenate pump. Generally, 70-75% or concentrated sulfuric acid is used for decomposition. Sulfuric acid is added to the decompo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10C1/00C07C37/72
Inventor 王伟赵冰高妍
Owner UNIV OF SCI & TECH LIAONING
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