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Method for producing rosin

A technology of rosin and turpentine, which is applied in the fields of turpentine, natural resin refining, chemical instruments and methods, etc., and can solve the problems of low quality of rosin and turpentine products and the inability to meet the requirements of industrialization

Active Publication Date: 2012-01-11
景东力奥林产集团林业化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the rosin and turpentine products produced by the conventional intermittent steam method are of low quality and cannot meet the requirements of industrialization

Method used

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  • Method for producing rosin
  • Method for producing rosin
  • Method for producing rosin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1： pic 1 preparation no. 1 Embodiment approach

[0077] 1. Melting process

[0078] The turpentine stored in the resin storage tank is sent to the resin outlet tank through the resin outlet pipe, and then sent to the feeding hopper by the screw conveyor, and then intermittently flows into the melting tank through the closed feeding valve. Add 600kg of turpentine and 600kg of water for every 2 tons of rosin in the melting kettle, and add 1.5kg of oxalic acid for decolorization. Direct steam is passed under the melting kettle, that is, open steam heating, and the temperature is kept at about 95°C to melt the rosin. The mixed steam of turpentine oil and water released during melting is recovered through a vapor-liquid separator and a condenser. The melted fat liquid is pressed into two high-position pots connected in series with steam, and the relatively coarse impurities are left on the filter plate at the lower part of the melting pot and cleaned regularly.

[0079] 2. Clarification process

[0080] After staying in the hig...

Embodiment 2

[0087] Embodiment 2: combine below figure 2 A second embodiment of producing rosin from rosin will be described.

[0088] Prepare unrefined rosin according to the method of Example 1. Put the metered liquid rosin into the refining kettle body 1 and the oval lower head 11 from the feed port 4, respectively open the oil inlet and outlet valves of the serpentine coil, the oil inlet and outlet valves of the mosquito coil coil, and the outer The oil inlet and outlet valves of the semi-circular coil allow the high-temperature heat transfer oil to enter the serpentine coil 10 and the mosquito coil respectively from the oil inlet 16 of the serpentine coil, the oil inlet 13 of the mosquito coil, and the oil inlet 12 of the outer semicircular coil. Pipe 18, outer semicircle coil pipe 17, and flow out from serpentine coil pipe oil outlet 7, mosquito coil oil outlet 8, outer semicircle pipe oil outlet 9 respectively. The rosin in the refining kettle is heated by the circulation of high...

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Abstract

The invention provides a method for producing rosin by turpentine, which comprises the following steps of melting, clarifying and distilling. The melted turpentine liquid is pressed in at least two higher-placed furnaces by vapor pressure in the melting process. The subsequent clarifying process is performed after the melted turpentine liquid is stayed in the higher-placed furnaces. The rosin product obtained by the method of the present invention can reach the grade of national superfine standard.

Description

technical field [0001] The invention relates to a production process of rosin, in particular to a method for preparing rosin by an intermittent steam method. 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 ...

Claims

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Application Information

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IPC IPC(8): C09F1/02C09F3/00
Inventor 陈止戈宋自旗
Owner 景东力奥林产集团林业化工有限公司
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