Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

71 results about "Tridecyl alcohol" patented technology

Tridecyl alcohol is produced from tetrapropylene by the oxo process for use only as a processing aid in polyvinyl chloride resins. 21 CFR 175.300; U.S. National Archives and Records Administration's Electronic Code of Federal Regulations.

Synthesis method and application of long-chain methyl p-hydroxybenzoate

The invention provides a synthesis method of long-chain methyl p-hydroxybenzoate, which comprises the following steps: 1) adding p-hydroxybenzoic acid, alcohol and a catalyst into an esterification reactor, adding a water-carrying agent, and heating under reflux for dehydration; 2) cooling the reaction solution, adding n-hexane while stirring, cooling to -20-25 DEG C, standing for 0.5-10 hours, filtering to obtain a filter cake and a filtrate, and drying the filter cake to obtain white powdery long-chain methyl p-hydroxybenzoate; and 3) carrying out vacuum evaporation to remove the n-hexane in the filtrate to obtain a surplus reaction solution, adding the p-hydroxybenzoic acid, alcohol and water-carrying agent into the surplus reaction solution, and repeating the steps above, wherein the alcohol is normal decyl alcohol, normal undecyl alcohol, normal lauryl alcohol or normal tridecyl alcohol, and the water-carrying agent is benzene, cyclohexane or n-hexane. The n-hexane is directly added to precipitate the long-chain methyl p-hydroxybenzoate from the reaction solution without evaporating out excessive alcohol. The method has the advantages of separable product, reusable catalyst, alcohol, n-hexane and water-carrying agent, and no environment pollution.
Owner:李炳洁

Synthesis method of tridecyl trimellitate

The invention discloses a synthesis method of tridecyl trimellitate. The synthesis steps are as follows: adding trimellitic anhydride and tridecyl alcohol into a reaction container according to the molar ratio of 1: (3-5), then adding a catalyst, performing esterification and dehydration under the protection of nitrogen, and utilizing a water separator to continuously remove water generated by reaction, wherein the esterification temperature is 190-220 DEG C, and the reaction is performed till no generation of the water; and then, reducing the temperature to 120 DEG C, further performing decompression, distillation and dealcoholization till no evaporation of the tridecyl alcohol, reducing the temperature to 90 DEG C, and then washing, extracting and drying to obtain the tridecyl trimellitate. According to the synthesis method disclosed by the invention, the trimellitic anhydride is taken as a raw material, and the esterification and the dehydration are performed with the tridecyl alcohol under the condition of the catalyst. The synthesis method has the advantages of mild conditions during the whole reaction, convenience in operation and high total yield of above 85%, and a product is obtained after dealcoholization and washing with water. The synthesis method disclosed by the invention has the advantages of simple process, easiness in formation of large-scale production and wide application prospects.
Owner:范强 +1
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products