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Hexachlorocyclopentadiene front fraction resourceful treatment process and hexachlorocyclopentadiene front fraction resourceful treatment device

A technology for hexachlorocyclopentadiene and processing technology, which is applied in chemical instruments and methods, halogenated hydrocarbon disproportionation separation/purification, organic chemistry, etc. cyclopentadiene resource treatment and other issues, to achieve the effect of effective utilization of resources and increase of content

Pending Publication Date: 2021-06-11
JIANGSU ANPON ELECTROCHEM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a resource recovery process and device for the front fraction of hexachlorocyclopentadiene, aiming to solve the problem of extracting hexachlorocyclopentadiene in the front fraction of hex

Method used

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  • Hexachlorocyclopentadiene front fraction resourceful treatment process and hexachlorocyclopentadiene front fraction resourceful treatment device
  • Hexachlorocyclopentadiene front fraction resourceful treatment process and hexachlorocyclopentadiene front fraction resourceful treatment device
  • Hexachlorocyclopentadiene front fraction resourceful treatment process and hexachlorocyclopentadiene front fraction resourceful treatment device

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Example Embodiment

[0022] Embodiments of the present invention will be described in detail below, and examples of the embodiments are illustrated in the drawings, in which the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions. The following is exemplary, and is intended to be used to illustrate the invention without understanding the limitation of the invention.

[0023] In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "post", "left", "right", "vertical", The orientation of the "horizontal", "top", "bottom", "inside", "outside", etc., is based on the orientation or positional relationship shown in the drawings, is only for ease of describing the invention and simplified description, not Indicating or implying that the device or element must have a specific orientation, constructed and operated in a particular orientation, and thus is not to be const...

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Abstract

The invention discloses a hexachlorocyclopentadiene front fraction resourceful treatment process and a hexachlorocyclopentadiene front fraction resourceful treatment device, which are characterized in that hexachlorocyclopentadiene front fraction is added into an alkali washing kettle for heat preservation and stirring, a sodium hydroxide solution is dropwise added at the same time, then standing is performed, and a lower layer organic phase is taken and introduced into a preheating kettle; then preheating operation is carried out, meanwhile, the outlet end of the top end of a rectifying tower is closed, preheated materials are fed into the kettle of the rectifying tower, then the temperature of the kettle of the rectifying tower is adjusted, meanwhile, the vacuum degree of the rectifying tower is controlled, hexachloroethane is extracted from the hexachloroethane extraction opening, after hexachloroethane is extracted completely, the hexachloroethane extraction opening is closed, the outlet end at the top end of the rectifying tower is opened, a tower top buffer tank is used for backflowing and enriching hexachlorobutadiene, and the separated hexachlorocyclopentadiene is collected by a hexachlorocyclopentadiene receiving tank. Therefore, the content of hexachlorocyclopentadiene extracted from the hexachlorocyclopentadiene front fraction is increased, and effective resource utilization is realized.

Description

technical field [0001] The invention relates to the technical field of chemical raw material treatment, in particular to a resource treatment process and device for the front fraction of hexachlorocyclopentadiene. Background technique [0002] Hexachlorocyclopentadiene is an important chemical raw material that can be used to synthesize pesticides, medicines and polyurethane flame retardants. Hexachlorocyclopentadiene forms aromatic pentachlorocyclopentadiene anions, so it is active in nature. Diels-Alder reaction can occur with most data dienophiles, and the conditions are relatively mild, the temperature is generally between 20-200 °C; it can even react with simple alkenes and polycyclic aromatic hydrocarbons (such as naphthalene, anthracene, etc.) reaction. Hexachlorocyclopentadiene is mostly used as an intermediate in the production of pesticides. Before the 1960s, it was used to produce organochlorine insecticides and acaricides, such as mirex, aldrin, dieldrin, Chlor...

Claims

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Application Information

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IPC IPC(8): C07C17/38C07C17/383C07C19/043C07C21/073C07C23/08
CPCC07C17/38C07C17/383C07C2601/10C07C19/043C07C21/073C07C23/08
Inventor 万金方付小光陈宗化唐素荣姜育田朱学军于同锋史祥军
Owner JIANGSU ANPON ELECTROCHEM
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