White mineral oil for polypropylene

A technology of white mineral oil and polypropylene, applied in the field of white mineral oil, can solve the problems of reduced catalyst activity and easy poisoning, and achieve the effects of reducing catalyst poisoning, uniform particle size and maintaining activity

Active Publication Date: 2009-03-25
YANCHENG HENGXING PETROCHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to reduce costs, some domestic devices use industrial-grade catalyst carriers, which brings disadvantages such as reduced catalyst activity and easy poisoning.

Method used

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  • White mineral oil for polypropylene

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The three-stage hydrogenated base oil A (such as Xinjiang naphthenic oil K371) obtained by the three-stage hydrogenation of the 350-550°C fraction section of the fourth reduction line after atmospheric fractionation of crude oil in Karamay Oilfield, Xinjiang;

[0024] Hydrogenated base oil B (300N) obtained by two-stage hydrogenation of the 320-520°C fraction section of the 320-520°C fraction of the 3rd or 4th line after Shanghai Petrochemical's low-sulfur crude oil is fractionated at atmospheric pressure;

[0025] Take 50% of three-stage hydrogenated base oil A and 50% hydrogenated base oil B to form a mixed base oil, and carry out sulfonation treatment on the base oil by sulfur trioxide gas-phase sulfonation method, wherein the gas-phase sulfonation at 55°C for 18 hours, sulfonation The chemical pipeline pressure is 0.04MPa; (the amount of sulfur trioxide is 90 kg / ton);

[0026] Adjust the pH value of the sulfonated hydrogenated base oil to 8 with 40% aqueous sodium h...

Embodiment 2

[0030] Three-stage hydrogenated base oil A (Xinjiang naphthenic oil KNH4010) obtained from three-stage hydrogenation of fractions at 350-550°C in the minus four line after atmospheric fractionation of crude oil from Xinjiang Karamay Oilfield.

[0031] Hydrogenated base oil B (150N) obtained by two-stage hydrogenation of the 320-520°C distillate section of the 320-520°C fraction of the 3rd or 4th line after Shanghai Petrochemical's low-sulfur crude oil is fractionated at atmospheric pressure;

[0032] Take 40% of three-stage hydrogenated base oil A and 60% hydrogenated base oil B to form a mixed base oil, and carry out sulfonation treatment on the base oil by sulfur trioxide gas-phase sulfonation method, wherein, gas-phase sulfonation at 60°C for 15 hours, The pressure of the sulfonation pipeline is 0.025MPa; (the amount of sulfur trioxide is 80 kg / ton);

[0033] Adjust the pH value of the sulfonated hydrogenated base oil to 9 with 20% aqueous sodium hydroxide solution at 65°C;...

Embodiment 3

[0036] After normal-pressure fractionation of crude oil from Karamay Oilfield in Xinjiang, the three-stage hydrogenated base oil A (such as Xinjiang naphthenic oil KP6010) obtained by the three-stage hydrogenation of the 350-550 ° C fraction of the fourth reduction line is obtained.

[0037] Hydrogenated base oil B (300N) obtained by two-stage hydrogenation of the 320-520°C fraction section of the 320-520°C fraction of the 3rd or 4th line after Shanghai Petrochemical's low-sulfur crude oil is fractionated at atmospheric pressure;

[0038] Take three-stage hydrogenated base oil A45%, hydrogenated base oil B55% to form a mixed base oil, and use sulfur trioxide gas-phase sulfonation method to carry out sulfonation treatment on the base oil. The chemical pipeline pressure is 0.06MPa; (the amount of sulfur trioxide is 95 kg / ton);

[0039] Adjust the pH value of the sulfonated hydrogenated base oil to 10 with 30% sodium hydroxide aqueous solution at 70°C;

[0040] Carry out solvent...

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Abstract

The invention discloses a white mineral oil used for polypropylene. The molecular weight of the white mineral oil is 430 to 500. The white mineral oil consists of 40 percent to 45 percent of naphthenic hydrocarbon and 55 percent to 59.9 percent of paraffinic hydrocarbon and therein, the content of aromatic hydrocarbon is not more than 0.1 percent. The dense of the white mineral oil at 20 DEG C is 0.840g/cm<3> to 0.890 g/cm<3>, the refractive index thereof is 1.4700 to 1.4800 at 20 DEG C and the kinetic viscosity thereof is 130mpa.s to 160mpa.s at 20 DEG C. The white mineral oil used for the polypropylene can fully meet the various physical and chemical indexes of a polypropylene catalyst carrier, thereby being capable of completely maintaining the activity of the polypropylene catalyst and keeping the molecule of the catalyst with even granularity during polymerization so as to reduce catalyst poisoning. The product can completely replace the products of import companies, thus changing the layout that the product completely rely on import and providing supporting service for introducing devices from abroad.

Description

technical field [0001] The invention belongs to the field of petrochemical industry, and in particular relates to a white mineral oil used as a catalyst carrier in the production of polypropylene. Background technique [0002] Polypropylene (PP) has excellent characteristics such as good mechanical properties, non-toxicity, low relative density, heat resistance, chemical resistance, easy processing and molding, easy access to raw materials, and low price. It has become the fastest growing among the five general-purpose synthetic resins , The most active variety of new product development, widely used in chemical industry, chemical fiber, construction, light industry, automobile manufacturing, home appliances, packaging materials, etc., and is constantly expanding new application fields. However, compared with PVC and PS, the crystallization speed of polypropylene is slower, the molding processing cycle is longer, the low-temperature impact performance is poor, the product gl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G69/00
Inventor 贾中佑
Owner YANCHENG HENGXING PETROCHEM CO LTD
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