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Environment-friendly processing method for layered complete utilization of natural latex resources

A technology of natural rubber latex and processing method, which is applied in the field of natural rubber processing and environmental protection, can solve the problems of unutilized environmental pollutants, waste water, discharge, etc., improve the quality of production environment, reduce pollution load, reduce production cost and environmental protection The effect of pollution control costs

Inactive Publication Date: 2014-12-03
HAINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the above method, the skim serum separated in the coagulation process of natural rubber latex is hardly utilized at present and discharged from the production system as environmental pollutants and waste water

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The environment-friendly processing method of a kind of natural rubber latex resource hierarchical full utilization of the present embodiment, namely: the method for preparing low-protein natural concentrated latex and general-purpose liquid biological preparation simultaneously from natural rubber latex, comprises the following steps:

[0029] (1) directly add 5-40wt% solid urea in 100 parts of fresh latex cut out from the rubber tree;

[0030] (2) Steps of sending to the processing plant (1) Add urea to fresh latex, filter through a screen, and precipitate to separate the scum and sludge in the latex;

[0031] (3) Add a combined stabilizer consisting of a surfactant, an oxidative crosslinking agent or a functional enhancer to the latex obtained after pretreatment in step (2):

[0032] Surfactant 0.2%-0.3wt%, such as: amino acid type amphoteric surfactant (N--lauroyl glutamic acid, N--lauroyl aspartic acid, N-fatty acyl sarcosine, N--coconut Sodium oleoyl methyl taura...

Embodiment 2

[0038] The environment-friendly processing method of a kind of natural rubber latex resource hierarchical full utilization of the present embodiment, namely: natural rubber latex prepares the method for low-protein natural concentrated latex and water and soil conservation type liquid biological agent simultaneously, comprises the following steps:

[0039] (1) directly add 5-40wt% solid urea in 100 parts of fresh latex cut out from the rubber tree;

[0040] (2) Steps of sending to the processing plant (1) Add urea to fresh latex, filter through a screen, and precipitate to separate the scum and sludge in the latex;

[0041] (3) Add a combined stabilizer consisting of a surfactant, an oxidative crosslinking agent or a functional enhancer to the latex obtained after pretreatment in step (2):

[0042] Surfactant 0.2%-0.3wt%, such as: amino acid type amphoteric surfactant (N--lauroyl glutamic acid, N--lauroyl aspartic acid, N-fatty acyl sarcosine, N--coconut Sodium oleoyl methyl ta...

Embodiment 3

[0048] The environment-friendly processing method of a kind of natural rubber latex resource hierarchical full utilization of the present embodiment, namely: the method for simultaneously preparing low-protein solid rubber and general-purpose liquid biological preparation from natural latex, comprises the following steps:

[0049] (1) directly add 5-40wt% solid urea in 100 parts of fresh latex cut out from the rubber tree;

[0050] (2) Steps of sending to the processing plant (1) Add urea to fresh latex, filter through a screen, and precipitate to separate the scum and sludge in the latex;

[0051] (3) Add a combined stabilizer consisting of a surfactant, an oxidative crosslinking agent or a functional enhancer to the latex obtained after pretreatment in step (2):

[0052] Surfactant 0.2%-0.3wt%, such as: amino acid type amphoteric surfactant (N--lauroyl glutamic acid, N--lauroyl aspartic acid, N-fatty acyl sarcosine, N--coconut Sodium oleoyl methyl taurate, N--potassium laur...

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PUM

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Abstract

The invention discloses an environment-friendly processing method for layered complete utilization of natural latex resources, which comprises the following steps: in the rubber tapping process, a chemical fertilizer urea is added as a preservative, aseptic and deproteinization agent of the fresh latex; in the processing process, a composite stabilizer composed of a surfactant, an oxidation crosslinking agent or functional reinforcer is added; after the latex is separated into a low-protein concentrated latex and a skim milk separation liquid by primary centrifugation, the low protein natural rubber products, or liquid biological agents or microbial inoculant activators with different use functions are further processed according to the products or applications; the skim milk separation liquid partially returns to the processing step for reutilization; and the gel generated in the production process of the low-protein solid natural rubber product is pressed and subjected to wastewater purification (rinsing) treatment to obtain washing water, which is reutilized in the production process and is not discharged. The clean production method for layered complete utilization of natural latex resources greatly reduces the pollution load, lowers the production cost and environmental pollution control cost, and enhances the economic benefit of the enterprise.

Description

technical field [0001] The invention relates to natural rubber processing and environmental protection technology, in particular to a clean production method for layered and full utilization of natural rubber latex resources. Background technique [0002] Natural rubber fresh latex mainly includes: rubber components (rubber hydrocarbon ions), non-rubber components (glue serum) and water. [0003] The existing general-purpose solid natural rubber (standard granular rubber) production process steps are: collect fresh latex from rubber trees, add alkali (such as ammonia) to the collected natural rubber latex as a preservative, filter to remove impurities, add water to dilute , Sedimentation and separation After the sludge is treated, the solid rubber is separated from the water-soluble non-rubber components by using the co-flow acid coagulation process of adding an external acid (sulfuric acid or formic acid, acetic acid). The gel is pressed into tablets, rinsed, dried, and pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08C1/00
Inventor 唐文浩唐天乐李春荣
Owner HAINAN UNIVERSITY
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