Rosin production technology process

Abstract

The invention discloses a rosin production technology process. The process comprises the following steps: conveying turpentine to a melting boiler, adding water, turpentine oil, and oxalic acid, wherein the weight ratio of turpentine to water to turpentine oil is 2-4:1-2:1, and the oxalic acid accounts for 0.1 to 0.3% of the turpentine weight; heating the boiler to melt the mixture in the boiler; transferring the melt mixture to a transition boiler; introducing the melt mixture into a clarifying boiler after precipitation in the transition boiler, then transferring the liquid to a steaming boiler to carry out steaming, wherein during the steaming process, water and turpentine oil are continuously steamed out from the liquid. The provided rosin production technology process has the following advantages: the turpentine is fully stirred before melting so as to grind the turpentine, thus the turpentine melting effect is improved, at the same time the phenomenon that some turpentine is not melted during the melting process is avoided, and thus the yield is increased; moreover, the metling is reduced, the energy consumption is reduced, and the rosin color will not turn darker; the condensed hot water can be directly applied to the boiler so as to reduce the temperature difference between the inlet water and outlet water, the boiler efficiency is improved, the steam pressure is more stable, and more energy is saved.

Description

technical field [0001] The invention relates to the technical field of rosin production, in particular to a rosin production process. Background technique [0002] Pine resin is a natural product secreted from the resin of pine and fir trees. The main components are resin acid and turpentine. Pine resin is insoluble in water but soluble in various organic solvents. With the different ratios of resin acid and turpentine, its specific gravity is 0.997 Between -1.083. The average content of turpentine in pine resin is 20-30%. [0003] Rosin is a volatile substance in the processing of rosin, and it is a solid product left after being evaporated with steam. Brittle in nature, the broken surface resembles a shell, with glass luster, colorless and transparent to brown or brown, soluble in organic solvents at room temperature, especially volatile oils, insoluble in cold water, but partially soluble in hot water, no Fixed melting point, there is a certain melting temperature rang...

AI Technical Summary

Problems solved by technology

However, the quality of rosin and turpentine produced by the conventional intermittent steam method is not high, the purity of raw rosin is low, or the preparation process is complicated, so that the product quality of rosin ester or modified rosin ester cannot meet the requirements and cannot meet the requirements of industrialization.

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