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Alchlor/nucleophilic reagent/catalyst promoter composite catalytic system for synthesizing petroleum resin

A technology of nucleophile and cocatalyst, which is applied in the field of petrochemical industry, can solve the problems of poor polymerization reproducibility and unstable process, and achieve the effects of easy feeding, continuous operation and stability

Active Publication Date: 2010-08-18
SINOPEC LANZHOU GASOLINEEUM CHEM IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technology still has not solved the problem of controllable polymerization of petroleum resin monomers, the polymerization reproducibility is poor, and the process is not very stable, so a new controllable cationic polymerization technology is needed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Preparation of composite catalyst:

[0029] Add 1.92g of aluminum trichloride to 3ml of anisole and 2ml of methyltrichlorosilane at room temperature, and stir for 30s to form a uniform transparent solution.

[0030] Polymerization of petroleum resins:

[0031] Add the composite catalyst prepared above to 213 grams of C5 thermal polymer raw material at 90°C, stir (speed 200rpm), slowly heat up to 130°C, react for 6 hours, then raise the reaction temperature to 150°C, and finish the reaction after 6 hours reaction. After the reactant is washed with alkali, washed with water and distilled under reduced pressure, the unhydrogenated petroleum resin is obtained. The conversion rate of the resin was 76%, the softening point was 125° C., the chroma was 16, the number average molecular weight was ˜450, and the molecular weight distribution index (Mw / Mn) was 1.75.

Embodiment 2

[0033] Preparation of composite catalyst:

[0034] Add 2.56g of aluminum trichloride to 3ml of anisole and 2ml of methylphenyldichlorosilane at room temperature, and stir for 30s to form a uniform transparent solution.

[0035] Polymerization of petroleum resins:

[0036] Add the composite catalyst prepared above to 213 grams of C5 thermal polymer raw material at 90°C, stir (speed 200rpm), slowly heat up to 125°C, react for 6 hours, then raise the reaction temperature to 155°C, react for 6 hours, and then End the reaction. After the reactant is washed with alkali, washed with water and distilled under reduced pressure, the unhydrogenated petroleum resin is obtained. The conversion rate of the resin was 67%, the softening point was 100° C., the chroma was 16, the number average molecular weight was ˜430, and the molecular weight distribution index (Mw / Mn) was 1.85.

Embodiment 3

[0038] Preparation of composite catalyst:

[0039] Add 1.6g of aluminum trichloride to 3ml of anisole and 2ml of phenyltrichlorosilane at room temperature, and stir for 30s to form a uniform transparent solution.

[0040] Polymerization of petroleum resins:

[0041] Add the composite catalyst prepared above to 213 grams of C5 thermal polymer raw material at 93°C, stir (speed 200rpm), slowly heat up to 128°C, react for 6 hours, then raise the reaction temperature to 158°C, and end the reaction after 6 hours reaction. After the reactant is washed with alkali, washed with water and distilled under reduced pressure, the unhydrogenated petroleum resin is obtained. The conversion rate of the resin was 75%, the softening point was 120° C., the chroma was 16, the number average molecular weight was ˜470, and the molecular weight distribution index (Mw / Mn) was 1.75.

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Abstract

The invention provides a composite catalytic system used for synthesizing a petroleum resin, which is a homogeneous transparent solution or a homogeneous disperse system prepared by the following raw materials by weight portion: 1 portion of anhydrous alchlor, 2 to 10 portions of nucleophile and 1 to 20 portions of auxiliary catalyst. Composite catalyst of the composite catalytic system can solvethe problem of homodisperse of solid catalyst AlCl3 during the process of polymerization of the petroleum resin, and can realize stable technique. Moreover, charging is easy; measurement is easy; andcontinuous operation can be realized. The softening point of the resin prepared is between 85 and 135 DEG C; the conversion rate of active ingredients reaches between 60 and 85 percent; and the average molecular weight is between 400 and 700. The synthesized petroleum resin can be widely applied to oil paint, road marking paint and printing ink.

Description

technical field [0001] The invention belongs to the field of petrochemical industry and relates to a cationic catalyst used for synthesizing petroleum resin, in particular to a composite catalytic system composed of aluminum trichloride / nucleophile / promoter. Background technique [0002] Petroleum resin is a low-molecular-weight thermoplastic resin, which is made of C5 petroleum resin, which uses the by-products of petroleum hydrocarbon cracking as raw materials and polymerizes under the action of cationic catalysts. . C5 petroleum resin has excellent properties such as acid resistance, alkali resistance, anti-aging, etc., and is cheap, and can be widely used in adhesives, road marking paints, rubber additives, coatings, inks, etc. [0003] Cationic catalyst (aluminum trichloride or boron trifluoride solid powder) is one of the most commonly used catalysts for petroleum resin polymerization. However, the direct use of solid catalysts has many disadvantages, such as solid p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F4/14C08F4/16C08F240/00
Inventor 张耀亨曹亚潘广勤徐惠俭李惠林李亮张霖毛兵刘秀兰焦宏宇柳彩霞邓廷昌刘志琴马斌杜新胜张春梅
Owner SINOPEC LANZHOU GASOLINEEUM CHEM IND CORP
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