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White mineral oil for polystyrol

A polystyrene and white mineral oil technology, which is applied in the petroleum industry, hydrocarbon oil treatment, hydrotreating process, etc., can solve the problems such as the thermal stability and light stability of crystalline polystyrene oil that cannot be fully achieved. Achieve the effects of improved impact strength, deep refining, and suitable hydrocarbon composition

Active Publication Date: 2012-08-08
YANCHENG HENGXING PETROCHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that there is no raw material from a single oil field or a single oil well in my country that can meet the physical and chemical index requirements of crystal polystyrene oil, while the domestic high-pressure hydrogenation process cannot fully meet the requirements of crystal polystyrene oil. In order to solve the problem of thermal stability and light stability requirements, in order to change the situation that this product is completely dependent on imports, a white mineral oil for polystyrene is provided

Method used

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Examples

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Effect test

Embodiment 1

[0026] Three-stage hydrogenated base oil A (Xinjiang naphthenic oil K371) obtained by three-stage hydrogenation of fractions at 350-550°C in the subtraction line 4 after atmospheric fractionation of Xinjiang Karamay Oilfield crude oil;

[0027] After normal-pressure fractionation of crude oil in Daqing Oilfield, take the 350-550°C cut section of the minus four line and adopt conventional isomerization hydrogenation to obtain isomerization hydrogenation base oil B;

[0028] After normal pressure fractionation of crude oil in Daqing Oilfield, take the 330-500°C fraction of the third minus line and adopt conventional isomerization hydrogenation to obtain isomerization hydrogenation base oil C;

[0029] Take three-stage hydrogenated base oil A35%+isomerized hydrogenated base oil B35%+isomerized hydrogenated base oil C30% to form a mixed base oil, and use sulfur trioxide gas phase sulfonation method to sulfonate the base oil, wherein, Gas-phase sulfonation at 55°C for 18 hours, the...

Embodiment 2

[0034] Three-stage hydrogenated base oil A (Xinjiang naphthenic oil KNH4010) obtained from 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;

[0035] After normal-pressure fractionation of crude oil in Daqing Oilfield, take the 350-550°C cut section of the minus four line and adopt conventional isomerization hydrogenation to obtain isomerization hydrogenation base oil B;

[0036] After normal pressure fractionation of crude oil in Daqing Oilfield, take the 330-500°C fraction of the third minus line and adopt conventional isomerization hydrogenation to obtain isomerization hydrogenation base oil C;

[0037] Take the three-stage hydrogenated base oil A30%+isomerized hydrogenated base oil B30%+isomerized hydrogenated base oil C40% to form a mixed base oil, and use the sulfur trioxide gas phase sulfonation method to sulfonate the base oil, wherein, Gas-phase sulfo...

Embodiment 3

[0042] Three-stage hydrogenated base oil A (Xinjiang naphthenic oil KP6010) obtained from 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;

[0043] After normal-pressure fractionation of crude oil in Daqing Oilfield, take the 350-550°C cut section of the minus four line and adopt conventional isomerization hydrogenation to obtain isomerization hydrogenation base oil B;

[0044] After normal pressure fractionation of crude oil in Daqing Oilfield, take the 330-500°C fraction of the third minus line and adopt conventional isomerization hydrogenation to obtain isomerization hydrogenation base oil C;

[0045] Take the three-stage hydrogenated base oil A40%+isomerized hydrogenated base oil B40%+isomerized hydrogenated base oil C20% to form a mixed base oil, and use sulfur trioxide gas phase sulfonation method to sulfonate the base oil, wherein, Gas-phase sulfonation ...

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Abstract

The invention discloses a white mineral oil used for polystyrene. The molecular weight of the white mineral oil is 440 to 500. The white mineral oil consists of 30 percent to 35 percent of naphthenic hydrocarbon and 60 percent to 60.9 percent of paraffinic hydrocarbon and therein, the content of aromatic hydrocarbon is less than 0.1 percent. The dense of the white mineral oil at 20 DEG C is 0.850to 0.880 and the kinematic viscosity thereof is 50 mm<2> / s to 110mm<2> / s at 40 DEG C. The white mineral oil which is used for the crystal type polystyrene and has high distillation range, narrow components, appropriate composition of hydrocarbons and high refining degree is obtained from the invention, which meets the requirements on thermal and light stability of the oil used for the crystal type polystyrene. Furthermore, the melt index of the polymer can be increased and Vicat softening point can be adjusted, thereby being favorable for the processing and pelleting and improvement of molding workability, tensile strength and impact strength of the polymer and the like. The product can completely be used for replacing the products of import companies and changes the layout of relying on import completely of the product.

Description

technical field [0001] The invention belongs to the field of petrochemical industry, in particular to a white mineral oil for polystyrene used in the production of synthetic resin. Background technique [0002] In 1996, the total production of synthetic resin in my country was 5.35 million tons, which rose from No. 7 in the world to No. 5. Taking polystyrene (PS) as an example, according to my country's "Ninth Five-Year Plan", the development capacity of polystyrene was 180 10,000 tons / year, and Jiangsu Province accounts for 50%, basically by introducing foreign capital and adopting the world's advanced production technology. The technical requirements for food-grade special white mineral oil used in production are high. According to incomplete statistics, the annual demand for special white mineral oil for the production equipment introduced in my country is more than 50,000 tons. As the equipment is put into production, the demand is increasing. The development and producti...

Claims

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Application Information

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