Preparation method of rosin

A technology of rosin and turpentine, applied in the direction of natural resin refining, etc., can solve the problems of high production cost, achieve the effects of high softening point, simple extraction steps, and excellent product quality

Inactive Publication Date: 2015-12-02
广西梧州日成林产化工股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this invention is to provide a kind of preparation method of rosin, the preparation method of this rosin can solve the problem of high production cost when preparing rosin products with rosin as raw material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Mix 1 kg of slash pine resin and 500 g of turpentine oil evenly, heat to dissolve, filter to obtain turpentine liquid, transfer the turpentine liquid to a distillation pot with agitator, and the distillation pot is connected with a condensing cooler, a turpentine oil storage tank and a vacuum pipe in sequence In the rosin distillation device of this embodiment, the air tightness of the vacuum detection device is turned on. After the air tightness of the device is intact, the vacuum degree of the device is adjusted to -0.1 MPa, and the temperature is raised to 195 °C at a heating rate of 1 °C / min. After 10 minutes, turn off the vacuum, fill the device with nitrogen until the pressure of the device is zero, and remove the turpentine in the turpentine oil storage tank; turn on the vacuum, adjust the vacuum degree in the device to 200 Pa, slowly heat up to 218 ° C, keep warm and distill for 40 minutes, and fill Inject nitrogen until the device pressure is zero, and collect t...

Embodiment 2

[0021] Mix 10 kg of horsetail rosin and 6 kg of turpentine oil evenly, heat to dissolve, filter to obtain turpentine liquid, transfer the rosin liquid to a distillation pot with agitator, and the distillation pot is connected with a condensing cooler, a turpentine oil storage tank and a vacuum tube in sequence In the rosin distillation device of this embodiment, the air tightness of the vacuum detection device is turned on. After the air tightness of the device is intact, the vacuum degree of the device is adjusted to -0.095 MPa, and the temperature is raised to 200 ° C at a heating rate of 1.5 ° C / min. After 20 minutes, turn off the vacuum, fill the device with nitrogen until the pressure of the device is zero, and remove the turpentine in the turpentine oil storage tank; turn on the vacuum, adjust the vacuum degree in the device to 150 Pa, slowly raise the temperature to 220 ° C, keep the temperature and distill for 37 minutes, and fill Inject nitrogen until the device pres...

Embodiment 3

[0025] Mix 50 kg of Nanya pine turpentine and 35 kg of pinane evenly, heat to dissolve, filter to obtain turpentine liquid, transfer the turpentine liquid into a distillation pot with agitator, and the distillation pot is connected with a condensing cooler, a turpentine oil storage tank and a vacuum pipe in sequence In the rosin distillation device of this embodiment, the air tightness of the vacuum detection device is turned on. After the air tightness of the device is intact, the vacuum degree of the device is adjusted to -0.097 MPa, and the temperature is raised to 210 °C at a heating rate of 1.3 °C / min. After 30 minutes, turn off the vacuum, fill the device with nitrogen until the pressure of the device is zero, and remove the turpentine in the turpentine oil storage tank; turn on the vacuum, adjust the vacuum degree in the device to 110 Pa, slowly raise the temperature to 219 ° C, keep warm and distill for 35 minutes, and fill Inject nitrogen until the device pressure is z...

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Abstract

The invention discloses a preparation method of rosin, comprising the steps of mixing well pine oil with a solvent, heating a mixture for dissolving, and performing filtering to obtain pine oil solution; transferring the pine oil solution into a distilling pot; before distilling, subjecting a distilling device to airtightness detection; after determining that airtightness of the device is complete, adjusting degree of vacuum, performing heating for distilling, closing the device to obtain vacuum, filling inert gas into the device to obtain zero pressure, and removing turpentine oil from a turpentine oil tank; releasing vacuum of a vacuum regulator, performing slow heating, holding the temperature for distilling, filling inert gas into the device to obtain zero pressure, and collecting distillate which is rosin. The rosin prepared by a high-vacuum distilling method is light in color, high in softening point, free of crystal and good in quality; compared with a traditional steam distilling method, a production process of the rosin is simple and lower in production cost.

Description

technical field [0001] The invention relates to the technical field of forest product processing, in particular to a method for preparing rosin. Background technique [0002] Pine resin is the resin secreted by pine or pine tree trunks, mainly including rosin and turpentine. [0003] When rosin is used as raw material to prepare rosin, it is necessary to separate turpentine through distillation process. Distillation is a key process in the whole production process, which determines the energy consumption of rosin processing and the color, softening point and crystallization of rosin products. The pros and cons of quality indicators. The traditional rosin distillation method uses steam distillation, that is, indirect steam heating or direct steam desorption to distill water and turpentine, and then collect the distillate to obtain rosin products. However, the obtained rosin products often entrain water and produce more crystals. Finally, the quality of the product is affect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09F1/02
Inventor 侯文彪李前吴嘉超江文夺黄常活陈敏琴
Owner 广西梧州日成林产化工股份有限公司
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