The production method of amide-type by-product industrial ammonium chloride

The production method of amide-type by-product industrial ammonium chloride

  • CN 106,746,114 A
  • Filed: 12/18/2016
  • Published: 05/31/2017
  • Est. Priority Date: 12/18/2016
  • Status: Active Application
First Claim
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1. a kind of production method of amide-type by-product industrial ammonium chloride, amide-type finish is condensed, it is secondary to generate after neutralization reactionProduct ammonium chloride, forms the amide-type finish solution of containing ammonium chloride after reaction, it is characterised in that:

  • Employ the operation of order below:



    1)

    Absorption process:

    Hot water is added to form aqueous ammonium chloride solution, chloride containing after fully dissolving in by-product ammonium chloride firstThe amide-type finish solution of ammonium adsorbs oil reservoir by resin tower, and when adsorption capacity declines more, resin tower carries out parsing recovery;



    2)

    Evaporization process:

    Resin tower out after solution into triple effect evaporator carry out an effect, two effect, three-effect evaporation and condensation, itsIn two effect evaporations, the triple effect evaporation evaporating temperatures that carry out class vacuum dehydration needs using the negative pressure less than atmospheric pressure it is relatively low;



    3)

    Drying process:

    The solution of triple effect evaporator treatment is dried into drying device, obtains more than 99% technical grade chlorinationAmmonium crystal.

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