Method for efficiently preparing lubricant additive T321 in pollution-free manner by employing medium-pressure solvothermal method

Method for efficiently preparing lubricant additive T321 in pollution-free manner by employing medium-pressure solvothermal method

  • CN 103,613,578 A
  • Filed: 11/07/2013
  • Published: 03/05/2014
  • Est. Priority Date: 11/07/2013
  • Status: Active Application
First Claim
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1. in, press solvent-thermal method green high-efficient to prepare a method of lubricating oil additive T321, it is characterized in that, according to the following steps operation:

  • Elemental sulfur and solvent are added in reactor, be warming up to 160-200 ℃

    , stirring reaction about 0.5 hour in backward reactor intermittent type add iso-butylene, continue reaction 3-6 hour, step of reaction pressure-controlling is at 3.5-4.5MPa, after reaction finishes, be cooled to room temperature, after the standing separatory of reaction solution, leave and take organic phase, after organic phase is filtered, washs, distilled, obtain lubricating oil additive T321;

    Described solvent is the mixing solutions of ammoniacal liquor and alcohol.

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