Preparation method of disproportionated rosin
A technology for disproportionating rosin and refining rosin, applied in the field of deep processing of rosin, can solve the problem of easy crystallization of disproportionated rosin, and achieve the effects of fast chemical reaction rate, improved crystallinity resistance and good activity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0015] The preparation method of the disproportionated rosin in this embodiment is as follows: using 10 parts of refined rosin as raw material, adding the refined rosin into the reactor, feeding nitrogen into the reactor, heating to 130° C., and heating for 20 minutes until the refined rosin melts; Stop flowing nitrogen, add 0.2 parts of molecular sieve catalyst to carry out disproportionation reaction, keep stirring during the reaction process and feed butene, after the disproportionation reaction is finished, filter and remove the catalyst to obtain disproportionated rosin.
[0016] The preparation method of the molecular sieve in this example is as follows: after calcining the diatomite at 1200°C to 1210°C, adding it into a sodium hydroxide solution with a concentration of 8 mol / L, then adding it into a sodium metaaluminate solution for aging, and then Add calcium chloride solution, set the temperature to 80°C, react for 2 hours, then cool, wash, filter, and dry to obtain mo...
Embodiment 2
[0018] The preparation method of disproportionated rosin in this example is as follows: use 20 parts of refined rosin as raw material, add the refined rosin into the reaction kettle, feed inert gas into the reaction kettle, heat to 135° C., and heat for 25 minutes until the refined rosin melts Stop feeding inert gas, add 0.02 part of solid catalyst to carry out disproportionation reaction, keep stirring and feed propylene during the reaction process, after the disproportionation reaction is finished, filter and remove the catalyst to obtain disproportionated rosin.
[0019] The preparation method of the molecular sieve in this example is as follows: after calcining diatomite at 1245°C to 1250°C, adding it to a sodium hydroxide solution with a concentration of 8 mol / L, then adding it to a sodium metaaluminate solution for aging, and then Add calcium chloride solution, set the temperature to 80°C, react for 2 hours, then cool, wash, filter, and dry to obtain molecular sieves.
Embodiment 3
[0021] The preparation method of disproportionated rosin in this example is as follows: use 30 parts of refined rosin as raw material, add the refined rosin into the reaction kettle, feed inert gas into the reaction kettle, heat to 140° C., and heat for 30 minutes until the refined rosin melts stop feeding inert gas, add 0.1 part of solid catalyst to carry out disproportionation reaction, keep stirring during the reaction process and feed propylene, after the disproportionation reaction is finished, remove the catalyst by filtration to obtain disproportionated rosin.
[0022] The preparation method of the molecular sieve in this example is as follows: after calcining the diatomite at 1230°C to 1237°C, adding it to a sodium hydroxide solution with a concentration of 8 mol / L, then adding it to a sodium metaaluminate solution for aging, and then Add calcium chloride solution, set the temperature to 80°C, react for 2 hours, then cool, wash, filter, and dry to obtain molecular sieve...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More