 | 1903 - 898 páginas
...with a D grade residue or paving asphalt from Los Angeles oil: Character of residues of Beaumont and California oils. Richardson has called attention to...heated, the amount of hard residue reaching in some cases to no more than 10 per cent and under other conditions to as much as 35 per cent. Distilled in... | |
 | 1906 - 1190 páginas
...78. 3 Bitumen soluble in 62° naphtha do.. I 84.3 Fixed carbon do. J 8. 7 78° 0. ',1904 74.4 8L6 U Richardson has called attention to the peculiar conditions...heated, the amount of hard residue reaching in some cases to no more than 10 per cent and under other conditions to as much as 35 per cent. Distilled in... | |
 | 1902 - 594 páginas
...occurs contains sulphur crystals. ' ' The presence of free sulphur also accounts for the variable nature of the product obtained, on varying the conditions...heated, the amount of hard residue reaching in some cases to no more than 10 per cent., and under other conditions to as much as 35 per cent. The sulphur... | |
 | Charles Willard Hayes, William Kennedy - 1903 - 222 páginas
...with a D grade residue or paving asphalt from Los Angeles oil: Character of residues of Beaumont and California oils. Richardson has called attention to...heated, the amount of hard residue reaching in some cases to no more than 10 per cent and under other conditions to as much as 35 per cent. Distilled in... | |
 | Geological Survey (U.S.) - 1903 - 210 páginas
...with a D grade residue or paving asphalt from Los Angeles oil: Character of residues of Beaumont and California oils. Richardson has called attention to...heated, the amount of hard residue reaching in some cases to no more than 10 per cent and under other conditions to as much as 35 per cent. Distilled in... | |
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A similar but softer pitch made by boiling the crude oil for twenty hours in an open dish had the following properties compared with a D grade residue or paving asphalt from Los Angeles oil: Character of residues of Beaumont and California oils. Richardson... 