A kind of high fluorine-containing C9 resin hydrogenation catalyst and its preparation method and application

A hydrogenation catalyst and catalyst technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve problems such as complex process flow and low defluorination accuracy, achieve high activity

Active Publication Date: 2022-04-29
WUHAN KELIN FINE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In summary, it can be seen that the current pretreatment of resin hydrogenation is generally the removal of sulfur, nitrogen, and chlorine. 3 The pretreatment of catalytically polymerized resins with high fluorine content is less studied, and the current defluorination research is the process of washing with surfactants, the defluorination accuracy is not high, and the process is complicated

Method used

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  • A kind of high fluorine-containing C9 resin hydrogenation catalyst and its preparation method and application
  • A kind of high fluorine-containing C9 resin hydrogenation catalyst and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Add 86.1g of nickel nitrate, 3.8g of copper chloride and 23.5g of aluminum sulfate into water to prepare solution I, then add 0.5mol / L sodium hydroxide solution dropwise into solution I, control the reaction temperature to 65°C, and the pH of the system to be 9 , After the precipitation is completed, continue to stir at constant temperature for 4 hours, and the obtained slurry is set aside. Dissolve 6.9g of ammonium heptamolybdate in water, add 2g of sodium dodecylsulfonate to prepare solution II, stir and heat to 80°C, then add the slurry obtained above into solution II, and reflux at 120°C for 4h. The obtained product is filtered, washed, and dried to obtain component M 1 precursors.

[0027] 24g sodium metaaluminate, 100g sodium silicate (25% SiO 2 content), 33.5g of aluminum sulfate were made into solutions, and flowed into the reaction vessel, keeping the reaction temperature at 35°C, pH value at 6.5, reacting for 0.5 h, then heating to 60°C, aging for 3h to obtain...

Embodiment 2

[0030] Add 37.3g of nickel chloride, 6.7g of copper nitrate and 111.8g of aluminum nitrate into water to prepare solution I, then add 0.6mol / L ammonia solution dropwise into solution I, control the reaction temperature to 50°C, the pH of the system to 10, and precipitate After completion, continue to stir at constant temperature for 3 h, and the obtained slurry is set aside. Dissolve 7.3g of ammonium heptamolybdate in water, and add 2.5g of hexadecyltrimethylammonium bromide to prepare solution II, stir and heat to 50°C, then add the slurry obtained above into solution II, at 80°C Reflux reaction for 3h, the obtained product was filtered, washed and dried to obtain component M 1 precursors.

[0031] 32.2g sodium metaaluminate, 40g sodium silicate (25%SiO 2 Content), 67g of aluminum sulfate were made into solutions, and flowed into the reaction vessel, keeping the reaction temperature at 20 ° C, pH value of 9.5, reacted for 1.5 h, then heated to 75 ° C, aged for 0.5 h to obta...

Embodiment 3

[0034] Add 151g of nickel nitrate, 14.8g of copper nitrate and 31.6g of aluminum nitrate into water to prepare solution Ⅰ, then add 0.5mol / L sodium hydroxide solution dropwise into solution Ⅰ, control the reaction temperature to 80°C, the system pH to 9, and precipitate After completion, continue stirring at constant temperature for 5 h, and the obtained slurry is set aside. Dissolve 6.8g of ammonium tetramolybdate in water, add 2g of sodium dodecylsulfonate to prepare solution II, stir and heat to 65°C, then add the slurry obtained above into solution II, and reflux at 100°C for 5h, The obtained product is filtered, washed, and dried to obtain component M 1 precursors.

[0035] 16g sodium metaaluminate, 40g sodium silicate (25% SiO 2 content), 47g of aluminum sulfate were made into solutions, and flowed into the reaction vessel, keeping the reaction temperature at 50°C, the pH value was 8, reacted for 2.5 hours, then heated to 90°C, and aged for 1.5h to obtain amorphous sil...

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Abstract

A kind of high fluorine-containing C9 resin hydrogenation catalyst, consists of active component M 1 , Auxiliary component M 2 and carrier component M 3 composition. Based on 100% of the total weight of the catalyst, M 1 Component content is 37%‑54%, M 2 The component content is 4%‑6%, and the balance is M 3 components. m 1 The components contain Ni, Mo, Cu, Al, M 2 Components contain Sm, Na, M 3 Composition is amorphous silica-alumina‑MgAl 2 o 4 composite oxides. The invention also discloses the preparation method and application of the catalyst. The catalyst provided by the invention is used to remove fluorine and sulfur in C9 resin by hydrogenation, and can effectively delay the poisoning of fluorine and sulfur in a hydrogenation catalyst at a later stage.

Description

technical field [0001] The invention relates to a hydrogenation catalyst for high fluorine-containing C9 resin, and also relates to a preparation method of the catalyst and its application in hydrogenation of high fluorine-containing C9 resin. Background technique [0002] C9 resin is a kind of thermoplastic resin obtained by thermal polymerization or catalytic polymerization reaction based on the C9 distillate produced in industrial ethylene production. Due to its strong viscosity and good compatibility with other oils and resins , Widely used in adhesives, road paint, ink and rubber industries. The C9 fraction usually contains impurities such as sulfur, nitrogen, and olefins, and BF is used in the catalytic polymerization of C9 resins 3 Catalyst, so that the C9 resin contains higher fluorine, and the above impurities will lead to higher chroma and poor light and heat stability of the resin, which limits its application to a certain extent. At present, hydrogenation modif...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/887C08F8/04C08F240/00
CPCB01J23/8871C08F8/04C08F240/00
Inventor 张先茂吴阳春王泽王瑜王国兴夏大寒周正赵志杰彭渺
Owner WUHAN KELIN FINE CHEM
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