Preparation method of low naphthalene high-boiling-point aromatic solvent for rubber resin plasticizer

A high-boiling-point aromatic hydrocarbon and rubber resin technology, which is applied in chemical instruments and methods, processing hydrocarbon oil, hydrocarbon oil treatment products, etc., can solve the problem of low yield of solvents with low boiling point of naphthalene, and achieve environmental protection and increase yield , Improve the effect of stability and mechanical strength

Active Publication Date: 2019-02-15
PENG CHEN NEW MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the yield of the same low naphthalene boiling point solvent is lower

Method used

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  • Preparation method of low naphthalene high-boiling-point aromatic solvent for rubber resin plasticizer

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Embodiment 1

[0028] A preparation method for a low-naphthalene high-boiling-point aromatic hydrocarbon solvent for rubber resin plasticizers, comprising the following steps:

[0029] (1) Mix molybdenum disulfide powder and isopropanol, ultrasonically treat for 1 hour under the power of 1000W, then dropwise add silane coupling agent, continue ultrasonic treatment for 30min, and obtain modified molybdenum disulfide; wherein, molybdenum disulfide powder, The mass ratio of silane coupling agent is 1:0.003;

[0030] (2) Dissolve cobalt nitrate and nickel nitrate in deionized water, then add tartaric acid and stir to make mixed solution A; dissolve tetrabutyl titanate in absolute ethanol to make mixed solution B; After dropping the sodium hydroxide solution, continue to add the mixed solution B dropwise. After the dropwise addition, reflux at 60-70°C for 10 hours. After the reaction, cool to room temperature, filter, and dry. The dried solid and modified molybdenum disulfide Mix and grind in a ...

Embodiment 2

[0036] A preparation method for a low-naphthalene high-boiling-point aromatic hydrocarbon solvent for rubber resin plasticizers, comprising the following steps:

[0037] (1) Mix molybdenum disulfide powder and isopropanol, ultrasonically treat for 3 hours under the power of 1000W, then dropwise add silane coupling agent, continue ultrasonic treatment for 30min, and obtain modified molybdenum disulfide; wherein, molybdenum disulfide powder, The mass ratio of silane coupling agent is 1:0.006;

[0038] (2) Dissolve cobalt nitrate and nickel nitrate in deionized water, then add tartaric acid and stir to make mixed solution A; dissolve tetrabutyl titanate in absolute ethanol to make mixed solution B; After dropping the sodium hydroxide solution, continue to add the mixed solution B dropwise. After the dropwise addition, reflux at 60-70°C for 20 hours. After the reaction, cool to room temperature, filter, and dry. The dried solid and modified molybdenum disulfide The mixed grinding...

Embodiment 3

[0044] A preparation method for a low-naphthalene high-boiling-point aromatic hydrocarbon solvent for rubber resin plasticizers, comprising the following steps:

[0045] (1) Mix molybdenum disulfide powder with isopropanol, ultrasonically treat it for 1.5h at a power of 1000W, then add a silane coupling agent dropwise, and continue ultrasonic treatment for 30min to obtain modified molybdenum disulfide; wherein, molybdenum disulfide powder , The mass ratio of silane coupling agent is 1:0.004;

[0046] (2) Dissolve cobalt nitrate and nickel nitrate in deionized water, then add tartaric acid and stir to make mixed solution A; dissolve tetrabutyl titanate in absolute ethanol to make mixed solution B; After dropping the sodium hydroxide solution, continue to add the mixed solution B dropwise. After the dropwise addition, reflux at 60-70°C for 12 hours. After the reaction, cool to room temperature, filter, and dry. The dried solid and modified molybdenum disulfide Mix and grind in ...

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Abstract

The invention discloses a preparation method of a low naphthalene high-boiling-point aromatic solvent for a rubber resin plasticizer. The preparation method of the low naphthalene high-boiling-point aromatic solvent for the rubber resin plasticizer comprises the following steps: firstly, preparing a supported hydrogenation catalyst and a naphthalene remover; secondly, using cracked C10 fraction asa raw material to carry out hydrogenation and naphthalene removing treatment in sequence; and thirdly, adding the cracked C10 fraction to a rectifying tower; opening a vacuum system of the rectifyingtower; adjusting the vacuum degree of the vacuum system at -0.09 MPa; starting a reboiler heat conduction oil heating system of the rectifying tower; controlling the tower top temperature at 165.5 DEG C and the tower bottom temperature at 269.2 DEG C to carry out rectification under vacuum; condensing a vapor phase of the rectifying process by using a tower top condenser of the rectifying tower;enabling a condensate to enter a reflux drum; condensing and trapping non-condensed vapor phase by using a tower top condensing trap of the rectifying tower; enabling the trapped condensate to enter the reflux drum; controlling reflux amount; and collecting a fraction with temperature of 260-280 DEG C to prepare a target product. The preparation method of the low naphthalene high-boiling-point aromatic solvent for the rubber resin plasticizer, disclosed by the invention, has the advantages of simple operation, low cost, low naphthalene content of the prepared aromatic solvent, no toxicity andenvironmental protection.

Description

technical field [0001] The invention relates to the field of solvent oil preparation, in particular to a method for preparing a low-naphthalene and high-boiling-point aromatic hydrocarbon solvent used for rubber resin plasticizers. Background technique [0002] In recent years, with the improvement of the capacity of the chemical industry such as oil refining and coal chemical industry, the production capacity of the corresponding million-ton ethylene and its supporting large-scale combined aromatics unit has continued to increase, which has greatly increased the output of heavy aromatics at home and abroad. How to make full use of these heavy aromatics and create high economic benefits has become a focus of great concern and research and development in the industry. C 10 Fractions are generally referred to by C 10 Aromatics and C 10+ The heavy aromatics fraction composed of aromatics mainly comes from catalytic reforming units of oil refineries, wide fraction catalytic r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/14B01J27/051
CPCB01J27/051C10G67/14C10G2300/1096C10G2400/30
Inventor 谈勇谈俊江晓龙乔久昌胡涛
Owner PENG CHEN NEW MATERIALS TECH CO LTD
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