Source and extraction of coal Zhou (a) is one of the products of coal oil extracted from petroleum. The petroleum composition is complex and varies with the place of origin. It can be divided into three categories: paraffinic oil, naphthenic petroleum and aromatic petroleum. The main component of petroleum in Daqing Oilfield of China is alkane compound; the main component of cycloalkane is cycloalkane. The petroleum produced by Yumen in China contains cycloalkane, which is said to be a mixture of alkane and a ring; the Baku oil of the Soviet Union promotes the naphthenic Type, Indonesian oil is aromatic oil.
The petroleum is fractionated, and different boiling point fractions are collected to obtain various petroleum products, and the petroleum can be fractionated into a plurality of products as needed. The general fractionation conditions are shown in Table 1.
Boiling point (°C) | Component | Name | Use |
40~100 100~200 | C 5 H 12 to C 7 H 16 C 6 H 14 to C 12 H 26 | Petroleum ether Steam oil | Solvent Fuel for automobiles, airplanes, and internal combustion engines |
200~275 275-400 The residue | C 13 H 28 to C 15 H 32 C 16 H 34 to C 20 H 42 C 18 H 38 to C 22 H 46 C 20 H 42 to C 24 H 50 | Kerosene, diesel lubricating oil Vaseline Stone wax Levy | Tractor fuel, flotation reagent raw materials, non-polar mineral collectors , Lubricant Medicine, lubricant Mineral processing chemicals Paving road |
(II) Collector performance of molybdenum ore mixture of kerosene and pine oil mixture The molybdenum-like composition and screening results used are listed in Tables 2 and 3. The properties of each fraction of kerosene used are listed in Table 4:
Mineral sample | Grade (%) | ||||
A B | MoS 2 8.18 1.44 | Fe 5.99 5.71 | S 8.89 4.73 | SiO 2 71.41 80.93 | Al 2 O 3 5.84 4.34 |
Grain size | Yield (%) | |
Mineral sample A | Mineral sample B | |
+100 100~150 150~200 200~270 270-400 -400 | 3.56 23.0 7.5 13.1 8.4 12.4 | 0.3 29.1 14.3 25.8 13.2 17.3 |
Boiling point range (°C, 1 atm) | Yield % | Specific gravity D 2 4 | The refractive index η. 12 |
- <150 150~180 180~200 200~220 220~235 <235 | 100.00 2.53 13.62 31.70 43.92 1.29 6.95 | 0.789 0.670 0.770 0.871 0.794 0.802 0.809 | 1.4427 1.4300 1.4347 1.4390 1.4451 1.4488 1.4519 |
Drug | Connection angle (Θ°) |
Distillation Primary kerosene 150 ° C fractionated grade kerosene 150~180°C fractionated kerosene 180~220°C fractionated kerosene Higher than 220 ° C fractional grade kerosene | 59.5 60.3 63.1 73.2 76.0 84.5 |
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