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Preparation method of PVC resin filler

A PVC resin and filler technology, applied in the field of PVC resin filler preparation, to achieve stable performance, cost reduction, and full color

Inactive Publication Date: 2016-02-17
GUIZHOU KAILIN GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the limitation of existing phosphogypsum application, the purpose of the present invention is to provide a preparation method of PVC resin filler, so as to expand the application range of phosphogypsum

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, the by-product sugar dregs obtained after sugar cane extraction, and the bean dregs obtained from the production of soybean milk are placed in a fermentation vessel at a mass ratio of 0.3:2:1, and lactic acid bacteria are added to the fermentation vessel, stirred evenly, and anaerobically fermented at 35°C After 48 hours, lactic acid was obtained after separation and purification; the number of viable lactic acid bacteria contained 4 million per gram of sugar dregs; the sugar content in sugar dregs was 35% by mass fraction; the bean dregs contained 10% by mass fraction protein. Mix the obtained lactic acid and stearic acid in a molar ratio of 2:1 and put them into a three-neck bottle with a stir...

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, the by-product sugar dregs obtained after extracting sugar from sugarcane, and the bean dregs obtained from the production of tofu are placed in a fermentation vessel at a mass ratio of 0.4:2.5:1.5, and lactic acid bacteria are added to the fermentation vessel, stirred evenly, and anaerobically fermented at 38°C After 36 hours, lactic acid was obtained after separation and purification; the number of viable lactic acid bacteria contained 4.5 million per gram of sugar dregs; the sugar content of sugar dregs was 37% in terms of mass fraction; the okara contained 15% in terms of mass fraction protein. Mix the obtained lactic acid and stearic acid in a molar ratio of 2.5:1 and put them into a three-neck bottle with ...

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, by-product sugar dregs obtained after sugar cane extraction, and bean dregs obtained from tofu production are placed in a fermentation vessel at a mass ratio of 0.5:3:2, and lactic acid bacteria are added to the fermentation vessel, stirred evenly, and anaerobically fermented at 40°C After 24 hours, lactic acid was obtained after separation and purification; the number of viable lactic acid bacteria contained 5 million per gram of sugar dregs; the sugar content of sugar dregs was 42% in terms of mass fraction; protein. Mix the obtained lactic acid and stearic acid in a molar ratio of 3:1 and put them into a three-neck bottle with a stirrer, add hardened oil as a catalyst, blow in nitrogen, and r...

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Abstract

The invention relates to a preparation method of CPVC resin filler, which is a method for preparing the PVC resin filler by taking ardealite as a raw material. The preparation method of the PVC resin filler comprises the steps of reacting the ardealite subjected to edulcoration with sodium carbonate to obtain calcium carbonate; performing anaerobic fermentation on the obtained calcium carbonate, candy pomace and bean dregs under the action of lactic acid bacteria to obtain lactic acid; performing esterification reaction on the obtained lactic acid and stearic acid under the action of protective gas, and performing neutralization reaction on stearic acid lactoyl acid and calcium carbonate which are generated by reaction, thus obtaining calcium lactate stearate. The obtained calcium lactate stearate is taken as filler for the production of PVC resin. The preparation method solves the environment pollution problem of the ardealite, reduces treatment charges paid by an enterprise for solving the problem, and has very obvious economic practicality.

Description

technical field [0001] The invention relates to a preparation method of a PVC resin filler, which uses phosphogypsum as a raw material to prepare the PVC resin filler. 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 of the document ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K5/101C12P7/56C07C69/24C07C67/08
Inventor 李泽钢杨永彬向前勇杨步雷王伟
Owner GUIZHOU KAILIN GRP CO LTD
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