91995-59-4 - Names and Identifiers
91995-59-4 - Physico-chemical Properties
Use | Used as rubber softener, wood preservative, medical preservative, also used in Ore flotation, linoleum, paint, plastic, etc |
91995-59-4 - Nature
Open Data Verified Data
Tan to black viscous liquid or semi-solid, with the odor of pyrodistillate and the odor of strong pyroacid. Relative density of about 1. 03~1.07 boiling point of 240~400 ℃, slightly soluble in water, soluble in alcohol, ether, ketone, Ester, chloroform, alkaline aqueous solution.
Last Update:2024-01-02 23:10:35
91995-59-4 - Preparation Method
Open Data Verified Data
The production of pine tar is mainly composed of three processes: Pine root carbonization, crude oil fractionation and tar preparation.
- pine root dry distillation the pine root and pine branches are collected, impurities are removed, and squares with a growth of about 70cm and a width of about 5-7cm are split, which are loaded into a dry distillation kettle and heated for dry distillation for 12h, the temperature was gradually increased from 100 °c to 400-450 °c. Water vapor, oil and gas etc. are condensed and separated into an oil-water separator to obtain crude oil. The tar discharged from the bottom of the pot is mixed with crude oil and is called a mixed crude oil and sent for processing.
- crude oil separation after dehydration, the mixed crude oil is driven into a fractionation kettle for fractionation, and the distillate is condensed through a condenser and enters an oil-water separator to separate and remove water, thereby obtaining tar.
- preparation of pine tar heavy tar and light tar are added to the mixing heating kettle at a ratio of about 65:35, heated to 100 ℃, fully stirred and mixed evenly, and then adjusted to viscosity, the temperature was heated to 155 to 165 ° C., the light oil was evaporated, and the precipitate was left to stand for 3H to remove mechanical impurities. Finally, the filter was filtered with a filter press to obtain a pine tar product.
Last Update:2022-01-01 11:15:30
91995-59-4 - Use
Open Data Verified Data
It is mainly used as a softening agent for rubber industrial products. It can also be used as a wood preservative. It can also be used in the manufacture of ships, electrical appliances and fishing net cables.
Last Update:2022-01-01 11:15:30
91995-59-4 - Reference Information
Last Update:2024-04-09 21:04:16