Method for preparing PP (Polypropylene) resin filling agent

A filler and resin technology, which is used in the field of preparing PP resin fillers to achieve the effects of full color, reduced processing costs, and obvious economical practicability

Active Publication Date: 2016-02-17
GUIZHOU KAILIN PHOSPHOGYPSUM INTEGRATION UTILIZATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the limitations of the existing phosphogypsum application, the purpose of the present inventi

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The impurity removal treatment is carried out on the phosphogypsum, and the weight percentage of impurities contained in the phosphogypsum is controlled to 4%. React phosphogypsum with excess sodium carbonate, filter, wash and dry to obtain calcium carbonate. Calcium carbonate, cassava dregs, α-amylase, and bean dregs obtained from the production of soybean milk are placed in a fermentation container at a mass ratio of 0.3:2:0.02:1, and lactic acid bacteria are added to the fermentation container, and stirred evenly , anaerobic fermentation at 38°C for 40 hours, and lactic acid was obtained after separation and purification; the number of viable lactic acid bacteria contained 4 million per gram of cassava residue; in terms of mass fraction, the starch content of cassava residue was 28%; On a fractional basis, okara contains 12% protein. Mix the obtained lactic acid and stearic acid in a molar ratio of 1:2 and put them into a three-necked bottle with a stirrer, add hard...

Embodiment 2

[0027] Perform impurity removal treatment on the phosphogypsum, and control the weight percentage of impurities contained in the phosphogypsum to 3%. React phosphogypsum with excess sodium carbonate, filter, wash and dry to obtain calcium carbonate. Calcium carbonate, by-product cassava dregs after cassava extract starch, α-amylase, and bean dregs obtained from producing tofu are placed in a fermentation container in a mass ratio of 0.4:2.5:0.025:1.5, and lactic acid bacteria are added to the fermentation container, and stirred evenly. Anaerobic fermentation at 40°C for 32 hours, separation and purification to obtain lactic acid; the number of viable lactic acid bacteria per gram of cassava residue is 4.5 million; in terms of mass fraction, the starch content of cassava residue is 37%; Calculated, okara contains 15% protein. Mix the obtained lactic acid and stearic acid in a molar ratio of 1:2.5 and put them into a three-necked bottle with a stirrer, add hardened oil as a cat...

Embodiment 3

[0029] The impurity removal treatment is carried out on the phosphogypsum, and the weight percentage of impurities contained in the phosphogypsum is controlled to 2%. React phosphogypsum with excess sodium carbonate, filter, wash and dry to obtain calcium carbonate. Calcium carbonate, the by-product cassava dregs after starch extraction from cassava, α-amylase, and the bean dregs obtained from producing tofu are placed in a fermentation container in a mass ratio of 0.5:3:0.03:2, and lactic acid bacteria are added to the fermentation container, and stirred evenly. Anaerobic fermentation at 45°C for 20 hours, separation and purification to obtain lactic acid; the number of viable lactic acid bacteria per gram of cassava residue is 5 million; in terms of mass fraction, the sugar content of cassava residue and α-amylase is 40 %; In terms of mass fraction, okara contains 22% protein. Mix the obtained lactic acid and stearic acid in a molar ratio of 1:3 and put them into a three-ne...

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Abstract

The invention relates to a method for preparing a PP (Polypropylene) resin filling agent, in particular to the method for preparing the PP resin filling agent by taking phosphogypsum as a raw material. The method for preparing the PP resin filling agent comprises the following steps: enabling the phosphogypsum which is subjected to impurity removal treatment and sodium carbonate to react to obtain calcium carbonate; performing anaerobic fermentation on the obtained calcium carbonate, cassava dregs, alpha-amylase and bean dregs under the effect of lactobacilli to obtain lactic acid; esterifying the obtained lactic acid and stearic acid under the effect of a protective gas; neutralizing the generated stearic lactoyl acid and the sodium carbonate to obtain sodium stearyl lactate. The obtained sodium stearyl lactate is used in the production of PP resin as a filling agent.

Description

technical field [0001] The invention relates to a method for preparing a PP resin filler, which is a method for preparing the PP resin filler by using phosphogypsum as a raw material. Background technique [0002] According to relevant statistical data, at present, my country's annual increase in phosphogypsum emissions has reached 50 million tons, and a large amount of phosphogypsum stacking will not only occupy land resources, increase huge economic burdens on enterprises, but also cause certain pollution to the environment. my country's national economic construction and ecological environment have caused enormous pressure. Therefore, speeding up the technological innovation of comprehensive utilization of phosphogypsum and realizing turning waste into treasure and harm into benefit has become an important technical and economic policy in my country's economic construction, and it is also an urgent problem to be solved for sustainable development. According to the spirit ...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08K5/101C07C69/67C07C67/30
CPCC07C67/30C07C69/67C08K5/101C08L23/12
Inventor 王伟杨步雷杨永彬向前勇李泽钢
Owner GUIZHOU KAILIN PHOSPHOGYPSUM INTEGRATION UTILIZATION
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