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Method for preparing chlorinated alkoxy biomass plasticizer

A technology of chloroalkoxygenation and plasticizer, applied in the direction of fatty acid esterification, etc., can solve the problems of poor compatibility, high production cost, limited amount of addition, etc., and achieve good compatibility, low cost, volatile Sexually low effect

Inactive Publication Date: 2011-09-07
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are following two deficiencies in this type of plasticizer: 1. Vegetable oil is used as raw material, and the production cost is relatively high
2. This type of plasticizer has poor compatibility with plastics such as PVC (polyvinyl chloride), and can only be used as a secondary plasticizer for PVC in conjunction with phthalate plasticizers such as DOP, and the addition amount is limited , generally the amount added to PVC is only 1-5%

Method used

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  • Method for preparing chlorinated alkoxy biomass plasticizer
  • Method for preparing chlorinated alkoxy biomass plasticizer
  • Method for preparing chlorinated alkoxy biomass plasticizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Biodiesel with an iodine value of 85 is selected for use. in accordance with figure 1 The main and auxiliary reactors can be tank reactors or tower reactors. Taking the 1000-liter tank reactor as an example, in the 1000-liter main and auxiliary glass-lined stirred tank reactors, biological 500kg of diesel oil, 50kg of methanol, and 0.5kg of phthalyl peroxide catalyst. Warm up to 55°C under stirring, stop heating for use;

[0026] Open the valve of the liquid chlorine steel cylinder placed on the floor scale, so that the liquid chlorine enters the chlorine gas vaporizer, and the gasified and metered chlorine gas enters from the bottom of the main reactor, and 70-80% of the chlorine gas entering the reaction system is consumed in the main reactor. remaining unreacted Cl 2 It enters the bottom of the secondary reactor and continues to react with the raw materials in the secondary reactor. Since the reaction is an exothermic reaction, the main reactor should be equipped...

Embodiment 2

[0038] Biodiesel with an iodine value of 60 is selected for use. in accordance with figure 1 , take 1000 liters of tank reactors as example, after embodiment 1 is finished, the material in the sub-reactor of partial reaction is all transported in the main reactor, and in the sub-reactor, 500kg of biodiesel with an iodine value of 60 , methanol 20kg, ethanol 20kg, liquid di-tert-butyl hydroperoxide 0.4kg. Warm up to 40°C under stirring, stop heating for use;

[0039] Open the valve of the liquid chlorine cylinder placed on the floor scale, so that the liquid chlorine enters the chlorine gas vaporizer, and the gasified and metered chlorine gas enters from the bottom of the main reactor, and the unreacted Cl in the main reactor 2 It enters the bottom of the secondary reactor and continues to react with the raw materials in the secondary reactor. Necessarily cool the materials in the reaction process in the main reactor, so that the reaction temperature is controlled at 50°C, a...

Embodiment 3

[0042] Biodiesel with an iodine value of 95 is selected for use. in accordance with figure 1 , taking 1000 liters of tank reactor as example, after embodiment 2 is completed, the material in the secondary reactor is all delivered in the main reactor, and in the secondary reactor, 500kg of biodiesel with an iodine value of 95, and 75kg of ethanol , Azobisisobutyrocyanide 0.4kg. Warm up to 60°C under stirring, stop heating for use;

[0043] Open the valve of the measurable liquid chlorine steel cylinder placed on the floor scale, after the liquid chlorine is vaporized, it enters the bottom of the main reactor, and the unreacted Cl in the main reactor 2 It enters the bottom of the secondary reactor and continues to react with the raw materials in the secondary reactor. Necessarily cool the materials in the reaction process in the main reactor, so that the reaction temperature is controlled at 70°C, and the reaction temperature of the secondary reactor is controlled at 50°C;

...

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Abstract

The invention provides a method for preparing chlorinated alkoxy biomass plasticizer. The method comprises the following steps: selecting biodiesel with iodine value between 50 and 120; ensuring that the weight ratio of biodiesel to organic alcohol to catalyst to chlorine gas to stabilizing agent is 100:5-30:0.05-0.2:20-50:0.2-0.4; adding the biodiesel, the organic alcohol and the catalyst to a reactor; heating materials to between 40 and 60 DEG C in a mixing state; supplying the chlorine gas to a reaction system at a speed controlled in a range between 40 and 60 kg / h for 2.5 to 4 hours; ensuring that the total chlorine amount is 20 to 50 percent of the weight of the biodiesel; completing chlorine supply and using dry air to blow out HCI dissolved in the materials in the reactor for deacidification refining; adding the stabilizing agent; and obtaining a product. The method has the advantages of simplicity, low cost, good compatibility with PVC, good plasticizing effects, low volatility, low migration property, good cold resistance and good stabilizing effect on light and heat, and the plasticizer is a compound plasticizer which is resistant to flame, free from toxicity and friendly to environment.

Description

technical field [0001] The invention belongs to the field of polymer materials, in particular to the field of plasticizers and their preparation methods, and in particular to the preparation methods of chlorinated plasticizers. Background technique [0002] Adding a certain ratio of plasticizer to the polymer resin material can improve and improve the processing performance and use performance of the polymer resin material (plastic, rubber). The plasticizers commonly used at present are mainly phthalate plasticizers, such as dioctyl phthalate (DOP), diethyl phthalate (DEP), dibutyl phthalate (DBP) etc. Dioctyl phthalate (DOP), as the main plasticizer, was suspected to be carcinogenic by the National Cancer Institute (NCI), and its use was restricted. People are looking for and researching substitutes that are safer and better than DOP. The relevant foreign food, cosmetics, and pharmaceutical management departments believe that biomass plasticizers are a relatively safe pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K5/04C08K5/10C11C3/10C08L27/06
Inventor 王正平刘莹孙国强
Owner GUANGZHOU UNIVERSITY