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Energy-saving rectification system for hydrolysis of dimethyldichlorosilane

A rectification system and rectification tower technology, applied in the field of energy-saving rectification system, can solve the problems of large consumption of external heat source and cold source, insufficient utilization of waste heat, insufficient energy saving and environmental protection, etc., and achieve saving of heating heat and cooling Quantity, long-term stable industrial operation, and the effect of saving equipment costs

Pending Publication Date: 2022-04-29
内蒙古恒星化学有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] The invention provides an energy-saving rectification system for the hydrolysis of dimethyldichlorosilane, which is used to solve the problem of large consumption of external heat sources and cold sources in the prior art, excessive energy consumption in the entire rectification system, and insufficient energy conservation and environmental protection , the problem that the waste heat is not fully utilized

Method used

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  • Energy-saving rectification system for hydrolysis of dimethyldichlorosilane
  • Energy-saving rectification system for hydrolysis of dimethyldichlorosilane
  • Energy-saving rectification system for hydrolysis of dimethyldichlorosilane

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Embodiment 1

[0082] Such as Figure 4 As shown, this embodiment provides an energy-saving rectification system for the hydrolysis of dimethyldichlorosilane, including the following workflow:

[0083] 1) The cold feed of the first rectifying tower 1 is first preheated by the feed preheater 12, then passes through the shell side of the first feed heater 8 and the shell side of the second feed heater 13 in sequence, and finally Enter the first rectification tower 1 through the pipeline to carry out the rectification operation.

[0084] 2) After the cold feed is separated by rectification in the first rectification tower 1, the output from the tower top is cooled by the tower top cooler 2, and after being transported to the reflux tank 3, part of it passes through the pre-pump filter 4 and the reflux pump 5, Reflux to the top of the first rectification tower 1, and part of the output enters the product tank or the next rectification tower.

[0085] 3) The extracted material from the tower ke...

Embodiment 2

[0089] In this embodiment, the actual working process of the buffer splitter plate provided by the heat exchanger is as follows:

[0090] After using the buffer splitter plate of the present invention, when the fluid feed enters the shell of the heat exchanger through the shell-side inlet, it directly impacts on the bottom plate of the buffer splitter plate, and the tube bundle is basically not directly impacted by the high-speed fluid. A part of the fluid feed washes the side plates on both sides of the buffer splitter plate on the buffer splitter plate, and is discharged from the through holes on the side plates and falls to the tube bundle for heat exchange. The other part of the fluid is guided by the arc-shaped bottom plate of the buffer splitter plate, flows downward from both ends along the arc of the shell, and when it flows through the split holes provided at both ends of the bottom plate, part of the fluid falls from the split holes to the tube bundle for heating. Ex...

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Abstract

The invention provides an energy-saving rectification system for hydrolysis of dimethyldichlorosilane, belongs to the technical field of organic silicon rectification, and is used in a continuous rectification system containing a plurality of rectification towers. The system comprises a first feed heater, cold fluid of the first feed heater is cold feed of a first rectifying tower, and the cold fluid is input from a shell pass inlet of the first feed heater, output from a shell pass outlet of the first feed heater and finally input into the first rectifying tower through a pipeline; the hot fluid of the first feeding heater is the tower top produced material of the second rectifying tower, is input from a tube pass inlet of the first feeding heater, is output from a tube pass outlet of the first feeding heater, and is finally input into the second rectifying tower or a product tank through a pipeline. The energy-saving rectification system provided by the invention is used for solving the problems that in the prior art, the consumption of an external heat source and a cold source is large, the energy consumption in the whole rectification system is too large, energy conservation and environmental protection are not enough, and waste heat is not fully utilized.

Description

technical field [0001] The invention relates to the technical field of organosilicon rectification, in particular to an energy-saving rectification system for hydrolysis of dimethyldichlorosilane. Background technique [0002] Organosilicon, that is, organosilicon compound, generally refers to a compound containing Si-C bonds and at least one organic group is directly connected to a silicon atom. Compounds in which atoms are linked are also referred to as organosilicon compounds. Because organosilicon compounds have the properties of both inorganic materials and organic materials, their polymers have many excellent properties, and are widely used in various industries such as electronics, construction, chemicals, textiles, light industry, and medical treatment, and are known as "industrial monosodium glutamate". . Among them, the polysiloxane composed of silicon-oxygen bond (-Si-O-Si-) as the skeleton is the most numerous, the deepest researched and the most widely used cl...

Claims

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Application Information

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IPC IPC(8): B01D3/14B01D3/32B01D3/42C07F7/12C07F7/20
CPCB01D3/14B01D3/146B01D3/32B01D3/42C07F7/20C07F7/12
Inventor 周文博渠国忠王小明
Owner 内蒙古恒星化学有限公司
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