Processing method of pine resin

A processing method and technology of turpentine, applied in the field of turpentine processing, can solve the problems that the quality of rosin and turpentine cannot meet the production needs of downstream industries, the quality of rosin and turpentine products cannot meet the standards, and the impurity in turpentine cannot be removed well, etc., to achieve Conducive to dissolution and clarification, easy to remove impurities, and good quality of finished products

Inactive Publication Date: 2013-05-08
云南茶花林化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In recent years, the demand for rosin and turpentine has shown a trend of increasing year by year, and due to environmental pollution and other reasons, the quality of raw material rosin is not high, so that the quality of rosin and turpentine prepared according to the existing production methods can no longer be obtained. To meet the production needs of downstream industries, it ha

Method used

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  • Processing method of pine resin
  • Processing method of pine resin

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 100kg turpentine is dissolved with a dissolving solution composed of 28kg turpentine, 11.88kg water and 0.12kg oxalic acid, clarified after the dissolution is completed, and the clarified solution is filtered through a 60-mesh filter to obtain 130kg crude filtrate; add 0.26kg oxalic acid for acidification Wash, then add hot water at 80°C for washing, and after clarifying for 4 hours, carry out fine filtration through a 120-mesh filter to obtain a fine filtrate. The fine filtrate was placed in a rectification tower for distillation at a temperature of 170° C. to obtain 76 kg of rosin and 16 kg of turpentine respectively. Among them, the yield of rosin is 76%, and the yield of turpentine is 16%. The test results of the gained rosin finished product are shown in Table 1, and the test results of the gained turpentine finished product are shown in Table 2.

Embodiment 2

[0023] 100kg turpentine is dissolved with a dissolving solution composed of 32kg turpentine, 7.8kg water and 0.2kg oxalic acid, clarified after the dissolution is completed, and the clarified solution is filtered through a 60-mesh filter to obtain 132kg crude filtrate; add 0.132kg oxalic acid for acidification Wash, then add hot water at 70°C for washing, and after clarifying for 4 hours, carry out fine filtration through a 120-mesh filter to obtain a fine filtrate. The fine filtrate is placed in a rectification tower for distillation at a temperature of 175° C. to obtain 77 kg of rosin and 17 kg of turpentine. Among them, the yield of rosin is 77%, and the yield of turpentine is 17%. The test results of the gained rosin finished product are shown in Table 1, and the test results of the gained turpentine finished product are shown in Table 2.

Embodiment 3

[0025] 100kg turpentine is dissolved with a dissolving solution composed of 22.5kg turpentine, 7.38kg water and 0.12kg oxalic acid, clarified after the dissolution is completed, and the clarified solution is filtered through a 60-mesh filter to obtain 121kg crude filtrate; add 0.242kg oxalic acid for pickling, and then add hot water at 80°C for washing, and after clarifying for 4 hours, perform fine filtration through a 120-mesh filter to obtain a fine filtrate. The fine filtrate is placed in a rectification tower for distillation at a temperature of 172° C. to obtain 75 kg of rosin and 16 kg of turpentine. Among them, the yield of rosin is 75%, and the yield of turpentine is 16%. The test results of the gained rosin finished product are shown in Table 1, and the test results of the gained turpentine finished product are shown in Table 2.

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Abstract

The invention relates to a processing method of pine resin and belongs to the field of rosin production. The processing method of pine resin comprises the following steps of: a, dissolving, namely dissolving the pine resin by adopting a dissolving solution, wherein the dissolving solution comprises the following components in percentage by weight: 55-82% of turpentine oil, 17.5-44.5% of water and 0.1-0.5% of oxalic acid; b, clarifying and colating, namely placing the dissolved pine resin liquid in a transition pot to be clarified and then colating to obtain colature; c, acid washing, namely adding the oxalic acid for washing; d, washing, namely adding hot water for washing; e, clarifying and carrying out refined filtration, namely placing the pine resin liquid into the transition pot to be clarified and then carrying out refined filtration; and f, heating and distilling, namely placing the pine resin liquid in a rectifying tower to be subjected to the heating and distilling, so that rosin and turpentine oil finished products are respectively obtained. The processing method of rosin provided by the invention has the beneficial effect that the qualities of the rosin and turpentine oil obtained by processing pine resin are excellent, so that demand of downstream industries is met.

Description

technical field [0001] The invention belongs to the production field of rosin, and in particular relates to a processing method of rosin. Background technique [0002] Pine resin is a resin secreted by pine tree trunks, which is a product of physiological activities of trees. It is viscous liquid or massive solid in the air, and is rich in rosin and turpentine. Rosin and turpentine are widely used chemical basic raw materials. Among them, rosin is insoluble in water and has anti-corrosion, insulation, adhesion, softening and other properties. It is the main chemical product of synthetic rubber, paint, soap, emulsifier, paper, etc. Raw materials. Turpentine is a colorless or light yellow volatile oil, widely used in paint, leather and other industries. [0003] In recent years, the demand for rosin and turpentine has shown a trend of increasing year by year, and due to environmental pollution and other reasons, the quality of raw material rosin is not high, so that the qual...

Claims

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Application Information

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IPC IPC(8): C09F1/02C09F3/00
Inventor 段波
Owner 云南茶花林化有限公司
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