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Continuous alkali washing method of C5 petroleum resin

A technology of petroleum resin and alkali, which is applied in the field of deactivation and washing of petroleum resin. It can solve the problems of inability to guarantee the quality stability of petroleum resin, limit the applicability of single-pot operation, and unfavorable continuous operation, so as to reduce the amount of washing, alkali, etc. Good washing effect, sufficient and stable effect of alkali washing

Active Publication Date: 2012-08-08
武汉鲁华泓锦新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the water washing method, it is generally a single-pot operation, that is, both alkali washing and water washing are carried out in a stirred tank. This kind of operation has the nature of intermittent operation, which is not conducive to continuous production, and cannot guarantee the stability of the quality of different batches of petroleum resin. sex
The concentration of the alkaline solution used is high, which will cause serious pollution, waste a lot of water, and cause a certain degree of corrosion to the equipment
This greatly limits the applicability of single-kettle operations

Method used

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  • Continuous alkali washing method of C5 petroleum resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Petroleum resin polymer solution (a) is mixed with 2% NaOH aqueous solution (b) and 0.2% demulsifier (c) through static mixer (1), enters polymerization termination tank (2) for decatalysis and polymerization termination, using flow 30m 3 / h pipeline pump (3) forcibly mixes the feed liquid in the polymerization termination tank. The mixed material liquid (d) enters the conical settling tank (4) to settle, the resin material liquid (e) enters the next process from the top, and the residue liquid (f) is discharged at the bottom of the settling tank.

Embodiment 2

[0026] Petroleum resin polymer solution (a) and 3% NH 4 OH aqueous solution (b) and 0.3% demulsifier (c) are mixed through a static mixer (1), and enter the polymerization termination tank (2) for decatalysis and polymerization termination, using a flow rate of 40m 3 / h pipeline pump (3) forcibly mixes the feed liquid in the polymerization termination tank. The mixed material liquid (d) enters the conical settling tank (4) to settle, the resin material liquid (e) enters the next process from the top, and the residue liquid (f) is discharged at the bottom of the settling tank.

Embodiment 3

[0028] Petroleum resin polymer solution (a) and 4% Na 2 CO 3 The aqueous solution (b) and 0.4% demulsifier (c) are mixed through a static mixer (1), and enter the polymerization termination tank (2) for decatalysis and polymerization termination, using a flow rate of 50m 3 / h pipeline pump (3) forcibly mixes the feed liquid in the polymerization termination tank. The mixed material liquid (d) enters the conical settling tank (4) to settle, the resin material liquid (e) enters the next process from the top, and the residue liquid (f) is discharged at the bottom of the settling tank.

[0029] The quality indicators of the C5 petroleum resin produced in the above examples 1-3 are: softening point is 105-110° C., hue is 2-3, molecular weight distribution is less than 2.1, and ash content is less than 0.04%.

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Abstract

The invention discloses a continuous alkali washing method of C5 petroleum resin. In the alkali washing process, feeding and discharging processes are continuously carried out, which is beneficial to keeping the stability of product quality, effectively prevents phenomena of emulsification, resin material liquid entrained in discharged water and the like, reduces corrosion on equipment and saves cost, thus the method disclosed by the invention is an efficient, saving and less-pollution continuous alkali washing method.

Description

technical field [0001] The invention relates to a method for deactivating and washing petroleum resins, in particular to a method for continuous alkali washing of C5 petroleum resins. Background technique [0002] C5 petroleum resin is a functional resin obtained by catalyzed cationic polymerization using the C5 distillate produced by cracking ethylene as a raw material. It is widely used in hot melt adhesives, pressure sensitive adhesives, hot melt coatings, inks, road paints and rubber additives, etc. Different application fields have different requirements for the physical and chemical properties of C5 petroleum resin. Among these physical and chemical properties, the chromaticity, softening point and compatibility of C5 petroleum resin are the most important technical indicators. [0003] The production method of C5 petroleum resin is mainly divided into four steps: 1. Raw material pretreatment and configuration, 2. Catalytic polymerization, 3. Deactivation and washing,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F240/00C08F6/08
Inventor 赵新来张宗龙刘玉国沈志龙刘伟赵晓华吕成刚王玉磊于景东
Owner 武汉鲁华泓锦新材料有限公司
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