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Method for continuously generating fine gutta-percha through digestion-reextraction

A technology of eucommia gum and back-extraction liquid is applied in fertilizers made of biological waste, pharmaceutical formulations, medical preparations containing active ingredients, etc. High rate, low consumption, good product quality effect

Inactive Publication Date: 2010-12-08
刘志成
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that these methods are not efficient, easily pollute the environment, and are difficult to industrialized application
At present, there is no report on the technology of producing high-quality Eucommia gum by leaching-back extraction method

Method used

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  • Method for continuously generating fine gutta-percha through digestion-reextraction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0034] Embodiment produces Eucommia gum according to the following steps:

[0035] 1. Air-dry Eucommia leaves naturally to reduce the water content of the leaves;

[0036] 2. Put the air-dried leaves into the microwave drying through the belt conveyor to remove the remaining moisture;

[0037] 3. Transporting the dried leaves to an improved low-power axial flow fan with a blade aspect ratio of 1:10 to peel off the mesophyll and the leaf stem, and then separate the mesophyll from the leaf stem through a cyclone separator;

[0038] 4. Send the leaf stalks to the roller press with a belt conveyor. After several times of rolling, the leaf stalks form thin pieces and then cut into strips with a large noodle cutter. The strips are cut into 5mm-10mm by a shearing machine Small sections are continuously sent into the leaching tank by a belt conveyor;

[0039] 5 In a leaching tank filled with chloroform, heat the mixed material to 52°C ± 1°C, and continuously leaching for 2.5 hours u...

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PUM

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Abstract

The invention relates to a method for continuously generating fine gutta-percha through digestion-reextraction. The method comprises the steps of: firstly, pre-treating folium cortex eucommiae including drying, crashing and cutting; secondly, digesting gutta-percha from folium cortex eucommiae through leach liquor; thirdly, separating gutta-percha from folium cortex resin through reextraction solution and dissolving the gutta-percha; and fourthly, post-treating materials, principally to dry the dissolved gutta-percha so as to obtain the fine gutta-percha. The method of the invention has the advantages that the leach liquor is nonflammable non-toxic agent, the gutta-percha extraction efficiency is high, the environment is prevented from being polluted, the folium cortex eucommiae is complexly used, no waste generates, the solvent is recycled, the consumption is low, the product quality is high, industrial continuous production is realized, the economic, environment-friendly and social benefits are all better than the traditional production method, and the promotional value is high.

Description

technical field [0001] The invention relates to a composition of natural rubber, in particular to eucommia rubber, and also to a production method thereof. Background technique [0002] Eucommia rubber, also known as gutta-percha, is a natural rubber, referred to as Eucommia gum. It is mainly made from the latex in the bark and leaves of Sapotaceae plants produced in tropical areas such as Malay Peninsula and Indonesia. The bark, leaves, and fruits of Eucommia ulmoides in my country also contain this gum. The structure of this glue is different from that of clover rubber. The clover rubber is cis-polyisoprene, while Eucommia gum is trans-polyisoprene. Its structural formula is as follows: [0003] [0004] cis-polyisoprene trans-polyisoprene [0005] Due to its different structure, it is endowed with different properties and special uses. Eucommia gum is much better than ordinary natural rubber in seawater corrosion resistance, so it is widely used in the manufacture ...

Claims

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Application Information

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IPC IPC(8): C08C2/06C09D193/00A61K36/46C05F5/00A23K1/14A61K127/00A23K10/30
CPCY02A40/20
Inventor 刘志成
Owner 刘志成
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