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

A high-boiling-point aromatic hydrocarbon and rubber resin technology, 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 low production cost , the effect of good mechanical properties

Active Publication Date: 2021-02-05
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 hydrocarbon 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 method for preparing a low-naphthalene and high-boiling-point aromatic hydrocarbon solvent used for rubber resin plasticizers, comprising the following steps: firstly preparing a loaded hydrogenation catalyst and a naphthalene-removing agent, and then using cracking C 10 The distillate is used as raw material, which is subjected to hydrogenation and denaphthalene treatment in sequence, and finally added to the rectification tower, and the vacuum system of the rectification tower is turned on, and the vacuum degree is adjusted to ‑0.09MPa; the reboiler of the rectification tower is started to be heated The system controls the tower top temperature at 165.5°C and the tower bottom temperature at 269.2°C, and performs vacuum rectification. The gas phase of the rectification process is condensed by the top condenser of the rectification tower, and the condensate enters the reflux tank, and the uncondensed gas phase undergoes rectification. The condensate trap at the top of the tower is condensed and collected, and the captured condensate enters the reflux tank, the reflux flow is controlled, and the fraction at 260‑280 ° C is collected to obtain the target product. The method is simple in operation, low in cost, low in naphthalene content in the prepared aromatic hydrocarbon solvent, non-toxic and environment-friendly.

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 Patents(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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