Preparation method of organic phosphate polypropylene nucleating agent

A polypropylene nucleating agent and organophosphate technology, applied in the petrochemical field, can solve problems such as unfavorable environmental protection, large exhaust gas smell, complicated operation, etc., and achieve the effects of easy operation, environmental protection, and overcoming many equipments.

Inactive Publication Date: 2012-03-21
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides a preparation method of an organophosphate polypropylene nucleating agent, which is used to solve the existing problems in the prior art that the reaction operation must be carried out in multiple steps, the equipment is large, the investment is large, the operation is cumbersome, and the intermediate materials must be transported multiple times, resulting in Exhaust gas has a strong smell, which is not conducive to environmental protection

Method used

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  • Preparation method of organic phosphate polypropylene nucleating agent
  • Preparation method of organic phosphate polypropylene nucleating agent
  • Preparation method of organic phosphate polypropylene nucleating agent

Examples

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Effect test

Embodiment 1

[0067] Add 250ml of water, 41.27g of 2,4-di-tert-butylphenol and 20ml of 37% formaldehyde into the reaction kettle, stir until the solid is fully dissolved, add 0.5g of sodium dodecylsulfonate at room temperature, and slowly add 98 % sulfuric acid 5ml, react at room temperature for 2 hours after the dropwise addition; then stir for 1.5 hours, then insert a suction filter tube with a mesh of 80 μm filter into the reactor to depressurize and extract water out of the reactor, and drain it. Then inject water into the reaction kettle, stir and wash, then insert the suction filter tube equipped with a filter into the reaction kettle to depressurize and extract the filtrate water out of the reaction kettle. Repeat several times until the pH is neutral. Stir and heat up to 80 degrees to dry.

[0068] After drying, add 160ml of toluene and 60ml of triethylamine into the original reaction kettle, stir until the solid is fully dissolved, slowly add 20ml of phosphorus oxychloride at room...

Embodiment 2

[0071] Add 250ml of water, 41.27 grams of 4-methyl-6-tert-butylphenol and 20ml of 37% formaldehyde in the reaction kettle, stir until the solid is fully dissolved, add 0.5 grams of sodium dodecylsulfonate at room temperature, slowly Add 5ml of 98% sulfuric acid, and react at room temperature for 2 hours after the dropwise addition; then stir for 1.5 hours, then insert a suction filter tube with a mesh of 80 μm filter screen into the reactor to depressurize and extract the filtrate out of the reactor. Dry. Then inject water into the reaction kettle, stir, and then use a suction filter tube equipped with a filter screen to insert into the reaction kettle to depressurize and extract the filtrate water out of the reaction kettle. Repeat several times until the pH is neutral. Stir and heat up to 80 degrees to dry.

[0072] After drying, add 160ml of toluene and 60ml of triethylamine into the original reaction kettle, stir until the solid is fully dissolved, slowly add 20ml of pho...

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Abstract

The invention discloses a preparation method of an organic phosphate polypropylene nucleating agent. In the method, only a single reactor is used as a reactor for reaction, and at the same time, the following reactions are carried out continuously in one reactor: bridging reaction to synthesize an intermediate product substituted diaryl phenol, aromatization to synthesize diaryl organic phosphoric acyl chloride, hydrolysis to produce substituted diaryl organic phosphate and final salt formation reaction to synthesize a substituted diaryl organic phosphate nucleating agent. A suction type filtration pipe with a filter screen is inserted into the reactor to reduce pressure in solid-liquid separation of each step so as to extract filtrate out of the reactor for solid-liquid separation. The multiple steps of reaction operations can be avoided, and the defects of the prior art such as multiple devices, large investment, complex reaction, troublesome operation and the like can be overcome. The operation can be simplified, the cost can be reduced, the reaction yield is high, the operation is safe, no combustion is needed, and the environmental protection can be facilitated.

Description

technical field [0001] The invention relates to the technical field of petrochemical industry, in particular to a preparation method of an organophosphate polypropylene nucleating agent. Background technique [0002] Substituted aryl organophosphate metal salts are widely used as nucleating modifiers for polypropylene resins, and are used in the modification of polypropylene resins, where substituted diaryl organophosphate metal salts such as bis(2,4-di-tert-butylphenoxy Base) sodium phosphate, 2,2'-methylene-bis(4,6-di-tert-butylphenoxy)sodium phosphate, etc., can significantly improve the processing properties of these resins (see "High performance of polypropylene - Nucleating agent", "Chemical Industry", 1999(8), p11); "The effect of nucleating agent on the properties of polypropylene", "Synthetic Resins and Plastics", 2001, 18(4), 39-41). [0003] At present, the synthesis of substituted diaryl organic phosphate metal salts is the substituted diaryl organic phosphate m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F9/6574C08K5/527C08L23/12
Inventor 顾民吕静兰徐耀辉李伟褚海斌
Owner CHINA PETROLEUM & CHEM CORP
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