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Bead-shaped granular antioxidant 1076 as well as preparation method and application thereof

An antioxidant and granular technology, applied in the field of antioxidant 1076 and its preparation, can solve the problems of difficult antioxidant 1076, low melting point of products, granulation, etc., to avoid dust pollution or explosion, improve production efficiency and quality, and store The effect of cost reduction

Inactive Publication Date: 2016-05-04
佟立新
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biggest advantage of this method is that it solves environmental protection problems both in the production process and in the use process, but this process has great limitations. The melting point of the product must be low, and the viscosity of the product in the molten state must be small. Using this method The products produced are flat, with large particles and poor fluidity, which greatly reduces the convenience, fluidity, accuracy and controllability of the product during use.
The hot-melt molding method is a continuous operation. Although the melting point of Antioxidant 1076 is only about 50°C, the viscosity after melting is relatively high. After being formed by hot-melt method, it will be a flake product with large particles and poor fluidity, which directly leads to the product The convenience, fluidity, accuracy and controllability of the measurement are greatly reduced, so it is difficult to granulate the antioxidant 1076 by hot melt molding

Method used

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  • Bead-shaped granular antioxidant 1076 as well as preparation method and application thereof
  • Bead-shaped granular antioxidant 1076 as well as preparation method and application thereof
  • Bead-shaped granular antioxidant 1076 as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0096] In a 3000L airtight reactor, add 541Kg of octadecanol, 600Kg of β-(3,5-di-tert-butyl-4-hydroxyphenyl) methyl propionate and 12Kg of dibutyltin oxide, in Heat up under the protection of nitrogen. When the temperature reaches 90°C, stop the nitrogen, start stirring and vacuuming, the pressure is 620-640mmHg, slowly raise the temperature, take about 2 hours to raise the temperature to 160°C, and then adjust the pressure to 755-760mmHg , and then keep the reaction at this pressure and temperature for 5 hours, then cool down, at 140 ° C, add 1.4m 3 Toluene, to dissolve the reactants, and then carry out the first circulating filtration to obtain 2000L mother liquor to be treated, add 400Kg of oxalic acid solution with a mass fraction of 5%, stir at 60°C for 15 minutes, stand still for 15 minutes to separate the acid water, add 500Kg Water, stir at 60°C for 15 minutes, stand still for 20 minutes to separate the water, at this time the pH of the material is 6-7, then add 5Kg of...

Embodiment 2

[0107] In the 3000L closed reactor, add 540Kg of octadecyl alcohol, 600Kg of β-(3,5-di-tert-butyl-4-hydroxyl phenyl) methyl propionate and 12Kg of dibutyltin dilaurate, in Heat up under the protection of nitrogen. When the temperature reaches 90°C, stop the nitrogen, start stirring and vacuuming, the pressure is 620-640mmHg, slowly raise the temperature, take about 2 hours to raise the temperature to 160°C, and then adjust the pressure to 755-760mmHg , and then keep the reaction at this pressure and temperature for 5 hours, then cool down, at 140 ° C, add 1.4m 3 Toluene, to dissolve the reactants, and then carry out the first cycle filtration to obtain 2000L mother liquor to be treated, add 400Kg of 5% acetic acid solution, stir at 60°C for 15 minutes, stand still for 15 minutes to separate the acid water, add 550Kg Water, stir at 60°C for 15 minutes, stand still for 20 minutes to separate the water, at this time the pH of the material is 6-7, then add 5.5Kg of magnesium silic...

Embodiment 3

[0112] In a 3000L airtight reactor, add 541Kg of octadecyl alcohol, 601Kg of β-(3,5-di-tert-butyl-4-hydroxyphenyl) methyl propionate and 12Kg of zinc isooctanoate, under nitrogen protection When the temperature reaches 90°C, stop nitrogen, start stirring and vacuuming, the pressure is 620-640mmHg, slowly raise the temperature, take about 2 hours to raise the temperature to 160°C, then adjust the pressure to 755-760mmHg, and then Keep the reaction at this pressure and temperature for 5 hours, then lower the temperature, and add 1.4m 3 Toluene, to dissolve the reactants, and then carry out the first circulating filtration to obtain 2000L mother liquor to be treated, add 500Kg of oxalic acid solution with a mass fraction of 5%, stir at 60°C for 15 minutes, stand still for 15 minutes to separate the acid water, add 550Kg of water , Stir at 60°C for 15 minutes, stand still for 20 minutes to separate the water, at this time the pH of the material is 6-7, then add 6Kg of magnesium si...

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Abstract

The invention provides a bead-shaped granular antioxidant 1076 as well as a preparation method and application thereof. The granularity of the bead-shaped granular antioxidant 1076 is 10-160 meshes. The preparation method comprises the following step: through a granulation process, preparing a molten granulation raw material into the bead-shaped granular antioxidant 1076 by adopting a spray granulation system. The spray granulation system comprises a heat preservation pump, a spray granulation tower, an induced draft fan and a discharging device, wherein a spray header, connected with the heat preservation pump and used for downward spraying, is arranged at the top of the spray granulation tower; a clamping sleeve is arranged on the periphery of the spray header; an air inlet and an air outlet are respectively arranged at the positions near the bottom and the top of the spray granulation tower; the induced draft fan is connected with the air outlet through a pipeline; the discharging device is arranged at the bottom of the spray granulation tower. The bead-shaped granular antioxidant 1076 overcomes the defects of blockage and wall-hanging caused by difficult charging and measuring of a powdery antioxidant 1076, and is high in bulk density, low in volatility, convenient to package, convey and store, and lower in storage cost; by adoption of the bead-shaped granular antioxidant 1076, no fish-eye-like impurities and bubbles are formed in a plastic molding process, and thus the plastic quality is improved.

Description

technical field [0001] The present invention relates to antioxidant 1076 and its preparation method and application, in particular to bead-shaped granular antioxidant 1076 and its preparation method and application. Background technique [0002] Industrial Antioxidant 1076 (Antioxidant 1076) is a high-molecular-weight hindered phenolic antioxidant, widely used in plastics, rubber, synthetic fibers, elastomers and crude oil products, and is currently recognized as the most ideal at home and abroad Antioxidant for polyolefins. However, the antioxidant 1076 provided by the prior art is all white crystalline powder. This white crystalline powder is easy to cause dust pollution, and there are unfavorable processes such as feeding and metering hanging on the wall due to its poor fluidity in application, and "bridge" The phenomenon of control, and then cause blockage, uneven mixing and other technical problems that affect product quality. [0003] The prior art usually adopts the...

Claims

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Application Information

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IPC IPC(8): C08K5/134D01F1/10C07C69/732C07C67/03C07C67/54B01J2/02C10L1/19C10L10/00
CPCB01J2/02C07C67/03C07C67/54C08K5/1345C08K2201/005C10L1/19C10L10/00C10L2230/081D01F1/10C07C69/732Y02P70/62
Inventor 佟立新
Owner 佟立新
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