- Clean production method of rubber vulcanization accelerator TOT-N
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The invention discloses a clean production method of a rubber vulcanization accelerator TOT-N. The method uses a methanol as a solvent, uses diisooctylamine, carbon disulfide and hydrogen peroxide asraw materials, and carries out a reaction under a phase transfer catalyst effect according to a chemical molar ratio of 1: (1-1.3): (0.50-0.7) to prepare the rubber vulcanization accelerator TOT-N. The production method uses green oxidant hydrogen peroxide as an oxidant to avoid the generation of waste gas and waste liquid, and the reaction is carried out in the presence of the phase transfer catalyst to improve the reaction efficiency; the operation is simple, a reaction condition is mild, a safety factor is high, the TOT-N can be prepared by an one-step method, manpower and material resources are saved, the yield of TOT-N is greatly improved, a production cost is greatly reduced, the generation of waste gases and waste liquid are reduced simultaneously, the sustainable green and clean development of the industry is achieved, and the large-scale industrial production is achieved.
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Paragraph 0050; 0051; 0052; 0053; 0054; 0055; 0056-0085
(2019/04/26)
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- A composition of organic hetero compounds as an antioxidant and antiwear additive for mineral lubricating oils
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As a multifunctional additive exhibiting antioxidant and antiwear activity for mineral lubricating oil, a composition of ammonium dialkyldithiophosphate (ADTP) with tetraalkyl thiuram disulfide (TDS) has been proposed, which provides lower sulfated ash, phosphorus, and sulfur contents compared with the traditional additive zinc dialkyldithiophosphate used for the same functions. Ammonium dialkyldithiophosphates bearing various alkyl radicals have been synthesized using structurally different amines. The antioxidant efficiency of ADTP samples has been shown by monitoring the formation and degradation of hydroperoxides in a hexadecane medium as a model of mineral oil. The tribological parameters of these compounds have been determined under boundary lubrication conditions.
- Zolotov,Kuz'Mina,Zolotov,Bartko,Sipatrov,Parenago
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p. 262 - 266
(2013/08/23)
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