Deaeration device and method for carboxyl styrene-butadiene latex

A technology of carboxylated styrene-butadiene latex and degassing device, which is applied to chemical instruments and methods, separation methods, gas treatment, etc. It can solve the problems that steam consumption cannot be completely eliminated, the structure of the degassing tower is complicated, and the power consumption is large. The gas production process is continuous, the degassing process is environmentally friendly, and the effect of low power consumption

Active Publication Date: 2019-10-22
广东诚铭化学品有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the structure of the degassing tower used in this method is complex, the reliability is poor, and the steam consumption cannot be completely eliminated. At the same time, the degassing process needs to be supplemented by vacuuming, and the power consumption is relatively large.

Method used

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  • Deaeration device and method for carboxyl styrene-butadiene latex

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Embodiment Construction

[0028] figure 1 It is a schematic structural view of the carboxylated styrene-butadiene latex degassing device and method in Example 1 of the present invention. In order to teach the technical solutions of the present invention, some conventional aspects have been simplified or omitted. It should be understood by those skilled in the art that modifications or substitutions from these embodiments will be within the scope of the present invention. Those skilled in the art will appreciate that the features described below can be combined in various ways to form multiple variations of the invention. As such, the invention is not limited to the possible embodiments described below, but only by the claims and their equivalents.

[0029] See figure 1 Shown, this is the schematic diagram of carboxylated styrene-butadiene latex degassing device in the present invention, and it comprises: degassing tower 1, heat exchanger 2, heater 3, catalytic reactor 4, booster fan 5 and desuperhea...

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Abstract

The invention discloses a carboxyl styrene-butadiene latex degassing device and method. The degassing device comprises a degassing tower, a heat exchanger, a heater, a catalytic reactor, a booster fanand a desuperheating humidifier. The degassing method comprises the following steps of: degassing residual volatile organic compounds in latex through a degassing tower; after converting a waste gasheat exchanger, a heater and a catalytic reactor enriched in volatile organic compounds into purified gas, performing desuperheating and humidification through a booster fan and a desuperheating humidifier, and circulating the purified gas back to the degassing tower for recycling. The degassing production is continuous; During degassing, steam and nitrogen need not be consumed and the system neednot be vacuumized. The invention thoroughly solves the gel problem caused by the contact of high-temperature steam and latex when steam degassing is adopted; The heat energy of residual VOCs in latexis fully recovered and utilized. VOCs-containing waste gas generated in the degassing process is purified synchronously, no further treatment measures are needed, and the degassing process is more environment-friendly.

Description

technical field [0001] The invention relates to the technical field of carboxylated styrene-butadiene latex production, in particular to a carboxylated styrene-butadiene latex degassing device and method for removing residual VOCs in latex. Background technique [0002] In the production process of carboxylated styrene-butadiene latex, the butadiene monomer and styrene monomer input in the latex production cannot fully participate in the polymerization reaction, and the unreacted butadiene monomer and styrene monomer are polymerized together with the latex The reaction kettle is transferred to the downstream degassing device through its own pressure and vacuum, and the butadiene is removed by the principle of flash evaporation, and the styrene is directly stripped with steam to remove the residual styrene (residual volatile organic compounds, Also known as residual VOCs) to pass, in order to improve the removal effect need to heat the latex. Domestic carboxylated styrene-bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D19/02B01D53/86B01D53/44C08F236/10C08F212/08C08F2/22
CPCB01D19/02B01D53/8687B01D2257/708C08F236/10C08F212/08C08F2/22
Inventor 张连腾张张米普科陈翠张志高郑作宪谢广华丁自杰
Owner 广东诚铭化学品有限公司
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