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Method for preparing hydrogenated indene resin

A technology of resin and hydrogen indene is applied in the field of preparation of hydrogenated indene resin, which can solve the problems that catalysts and hydrogenation methods are in the laboratory stage and have not yet formed an industrial scale, and can reduce the amount of oil-containing solid waste and improve the hydrogenation selectivity. , the effect of reducing the amount of lye

Active Publication Date: 2015-04-22
HENGHE MATERIALS & SCI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the research on these catalysts and hydrogenation methods is still in the laboratory stage and has not yet reached an industrial scale.

Method used

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  • Method for preparing hydrogenated indene resin
  • Method for preparing hydrogenated indene resin
  • Method for preparing hydrogenated indene resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The following table 1 is the approximate composition of the by-product C9 fraction of the ethylene plant:

[0042] Table 1 Composition of main compounds in ethylene by-product C9 fraction

[0043] serial number

Compound name

Content, %

serial number

Compound name

Content, %

1

Cyclopentadiene

0.98

9

Trimethylbenzene

2.22

2

Toluene

1.02

10

o-, m-, p-vinyltoluene

14.41

3

m-, p-xylene

3.38

11

n-decane

1.33

4

Styrene

8.79

12

β-DCPD

1.96

5

O-xylene

4.01

13

α-DCPD

19.72

6

Propylbenzene

0.60

14

Indene

7.93

7

m-, p-ethyltoluene

3.14

15

2-methylindene

2.67

8

mesitylene

3.35

16

heavy component

24.49

[0044] The indene enrichment fraction A used in the present invention, its typical composition sees the following table 2:

[0045] T...

Embodiment 2～13

[0050] The composition of indene-enriched fraction A is as follows: cyclopentadiene 1.0wt%, methylcyclopentadiene 1.0wt%, styrene 4.0wt%, methylstyrene 8.0wt%, dicyclopentadiene (DCPD) 4.0wt% , indene (Indene) 45wt%, CPD-MCPD dimer, methylcyclopentadiene dimer (DMCPD) 8.0wt%, naphthalene 1.0wt%, and the rest are C8-C12 hydrocarbons.

[0051] Put the above-mentioned fraction A after dehydration into the reactor, and add boron trifluoride diethyl ether BF accounting for 0.4-1.5wt% of the total material mass under the condition of -10°C to 25°C (reaction initiation temperature) 3 ·Et 2 O or gaseous boron trifluoride accounting for 0.1-0.8wt% of the total material mass, polymerized at 10-45°C (reaction temperature) for 0.5-3h to obtain an indene resin polymer solution, which was washed with 5% sodium hydroxide solution The catalyst was removed, and then washed with water until neutral to obtain a light yellow resin solution.

[0052] According to the above reaction steps, exampl...

Embodiment 14～19

[0058] Firstly, the solvent is removed by vacuum distillation at -0.085MPa to 110°C, and then free fluoride ions and trace water are removed through an electric desalination device, and then the high-efficiency dehalogenation agent spherical Al 2 o 3 (Particle size 0.3cm, pore volume 0.5ml / g, bulk density 900kg / m 3 ) to remove trace fluorine at high temperature, and finally modify zinc oxide (ZnO content 95wt%, MgO content 3wt%, SiO 2 Content 2wt%, specification is Φ4×4-15, bulk density 1.25kg / L) the petroleum resin liquid to be hydrogenated is obtained after removing trace sulfur in packed bed;

[0059] The above-mentioned petroleum resin liquid is dissolved in hydrocracked aviation kerosene with a boiling range of 200-240° C. at a mass ratio of 1:3, and a hydrogenation reaction experiment is carried out under the action of a hydrogenation catalyst with a limited composition. Mass percentage of each component in hydrogenation catalyst: carrier γ-Al 2 o 3 96.5%, main catal...

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Abstract

The invention relates to a method for preparing hydrogenated indene resin. The method includes the steps: depolymerizing an ethylene cracked C9 fraction to obtain an indene-enriched fraction A with the boiling point of 140-210 DEG C, removing trace water, then carrying out catalytic polymerization with boron trifluoride ether or gas boron trifluoride to obtain an indene resin polymerization liquid, washing, filtering to obtain a resin liquid, pre-treating the resin liquid, then mixing and dissolving with hydrogenated aviation kerosene, to obtain a hydrogenated resin liquid under an action of a hydrogenation catalyst, and removing a solvent to obtain the product. The method has simple process, and the prepared hydrogenated indene resin is light in hue, good in thermal stability and excellent in compatibility, and is mainly applied in printing ink printing, food packaging and other fields.

Description

technical field [0001] The invention belongs to the field of preparation of petroleum resins, in particular to a preparation method of hydrogenated indene resin. Background technique [0002] Petroleum resin is a solid or viscous liquid medium and low molecular weight polymer obtained by thermal polymerization or catalytic polymerization with the by-product C5 / C9 fraction of the ethylene plant as the main raw material. According to the monomer and molecular structure of the resin, it can be roughly divided into aromatic petroleum resin, aliphatic petroleum resin and alicyclic petroleum resin. [0003] Aromatic petroleum resin, also known as C9 petroleum resin, is obtained by polymerizing the above-mentioned ethylene by-product C9 fraction as a raw material, and its production raw material is mainly the cracked C9 fraction oil produced by the ethylene plant, accounting for about 10% to 20% of the ethylene production. The distillate has complex components and is rich in unsat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F240/00C08F8/04
Inventor 王斌孙向东
Owner HENGHE MATERIALS & SCI TECH CO LTD
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