| Class 208 | MINERAL OILS: PROCESSES AND PRODUCTS |
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![[List of Pre Grant Publications for class 208 subclass 1]](../as.gif) | ![[List of Patents for class 208 subclass 1]](../ps.gif) | 1 | SYNTHETIC DRYING OILS |
| | 2 | PHENOLIC OR TOXIC OILS |
| | 3 | OXIDATION OF MINERAL OILS |
| | 390 | TAR SAND TREATMENT WITH LIQUID |
| | 400 | BY TREATMENT OF SOLID MINERAL, E.G., COAL LIQUEFACTION, ETC. |
| | 401 |  Including a test or measurement |
| | 402 | Using electrical, magnetic or wave energy |
| | 403 | Chemical modification of solids before hydrogenation |
| | 404 | Using molten additive, e.g., heat carrier, etc. |
| | 407 | Specified agitation or circulation in gas contact zone |
| | 408 |  Gas includes hydrogen |
| | 409 | Vertical gas upflow, e.g., fluidization, etc. |
| | 411 | Using solid heat carrier |
| | 412 | Plural hydrogenation steps |
| | 414 | With hydrogen production from water |
| | 415 | Including contact of feed with liquid produced in the process, i.e., recycle |
| | 416 | With discrete hydrogenation of recycle stream |
| | 417 | Recycle of bottoms (resid) |
| | 418 | Including contact with hydrogen gas |
| | 419 | Using specifically added catalyst during hydrogenation |
| | 420 | Dissolved or suspended-thermally-decomposable catalyst, component or precursor |
| | 421 | Containing Group VI transition metal |
| | 423 | Containing Group VIII metal |
| | 424 | Specified procedure to improve separation of solids from liquid product |
| | 426 | Including agglomeration, comminution or size-classification of solids |
| | 427 | Including burning of feed or product |
| | 428 | Including contact with extraneous additive other than hydrogen, e.g., solvent, etc. |
| | 429 | Distinct addition zones |
| | 430 | Contact with additive, followed by chemical conversion |
| | 431 | Specified hydrogen-donor solvent |
| | 432 | With specified circulation procedure in contact zone |
| | 433 | Simultaneous treatment with gaseous additive and liquid solvent |
| | 434 | Additive is petroleum or fraction from petroleum refining |
| | 435 | Additive is specified catalyst or liquid solvent or dispersant |
| | 12 | COLORNG TREATMENTS (INCLUDES FLUORESCENCE) |
| | 13 | TREATMENT OF REFINING SLUDGE |
| | 14 | PRODUCTS AND COMPOSITIONS |
| | 24 | PARAFFIN WAX; TREATMENT OR RECOVERY |
| | 25 | With ureas |
| | 26 | With sorption agents |
| | 27 | Chemical treatment (refining or modification except mere solvent extraction) |
| | 28 | Separation of paraffin from oil (e.g., dewaxing) |
| | 39 | ASPHALTS, TARS, PITCHES AND RESINS; MAKING, TREATING AND RECOVERY |
| | 40 | By chemical conversion of oil |
| | 41 | By distillation |
| | 44 | Chemical modification of asphalt, tar, pitch or resin |
| | 45 | Solvent extraction |
| | 46 | CHEMICAL CONVERSION OF HYDROCARBONS |
| | 47 | With prevention of corrosion or erosion in system |
| | 48R | With prevention or removal of deleterious carbon accumulations or equipment |
| | 49 | Plural serial stages of chemical conversion |
| | 50 | Coking in at least one stage |
| | 56 | Hydrogen donor diluent cyclic processes |
| | 57 | First stage is an hydrogenation (saturation) |
| | 58 | First stage is hydrocracking (includes hydro-desulfurization under cracking conditions) |
| | 59 |  Hydrocracking in all stages |
| | 60 | With subsequent reforming |
| | 61 | With subsequent thermal or catalytic cracking |
| | 62 | First stage is reforming |
| | 67 | First stage is thermal or catalytic cracking |
| | 78 | Plural parallel stages of chemical conversion |
| | 81 | With contacting vapor porducts with liquid feed (i.e., product scrubbing and feed stripping) |
| | 82 | Only selected fractions of product or feed are contacted |
| | 83 | With subsequent fractionation |
| | 84 | With added material (to scrubbing-stripping stage) |
| | 85 | With preliminary treatment of feed |
| | 95 | With subsequent treatment of products |
| | 106 | Cracking |
| | 107 | Hydrogenative |
| | 108 | Catalytic |
| | 109 |  Silica or silicate containing catalyst |
| | 110 |  With metal or metal oxide |
| | 111.01 |  With group III metal, rare earth metal, or metal oxide (i.e., Sc, Y, Al, Ga, ln, Tl, metal of atomic number 57-71, or oxide thereof) |
| | 111.05 |  With group VII metal or metal oxide (i.e., Mn, Tc, Re, or oxide thereof) |
| | 111.1 | With group IV metal or metal oxide (i.e., Ti, Zr, Hf, Ge, Sn, Pb, or oxide thereof) |
| | 111.15 | With group I metal or metal oxide (i.e., alkali metal, Ag, Au, Cu, or oxide thereof) |
| | 111.2 | With group V metal or metal oxide (i.e., V, Nb, Ta, As, Sb, Bi, or oxide thereof) |
| | 111.25 | With group II metal or metal oxide (i.e., alkaline earth metal, Be, Mg, Zn, Cd, Hg, or oxide thereof) |
| | 111.3 | With group VI metal or metal oxide (i.e., Cr, Mo, W, Po, or oxide thereof) |
| | 111.35 | With group VIII metal or metal oxide (i.e., iron, or platinum group metal, or oxide thereof) |
| | 112 | Metal or metal oxide catalyst |
| | 113 | Catalytic |
| | 114 | Phosphorus, boron or nitrogen containing catalyst |
| | 115 | Halogen containing catalyst |
| | 118 | Silica or silicate containing catalyst |
| | 119 | With metal or metal oxide |
| | 120.01 | With group III metal, rare earth metal, or metal oxide (i.e., Sc, Y, Al, Ga, In, Tl, metal of atomic number 57-71 or oxide thereof) |
| | 120.05 | With group VII metal or metal oxide (i.e., Mn, Tc, Re, or oxide thereof) |
| | 120.1 | With group IV metal or metal oxide (i.e., Ti, Zr, Hf, Ge, Sn, Pb, or oxide thereof) |
| | 120.15 | With group I metal or metal oxide (i.e., alkali metal, Ag, Au, Cu, or oxide thereof) |
| | 120.2 | With group V metal or metal oxide (i.e., V, Nb, Ta, As, Sb, Bi, or oxide thereof) |
| | 120.25 | With group II metal or metal oxide (i.e., alkaline earth metal, Be, Mg, Zn, Cd, Hg, or oxide thereof) |
| | 120.3 | With group VI metal or metal oxide (i.e., Cr, Mo, W, Po, or oxide thereof) |
| | 120.35 | With group VIII metal or metal oxide (i.e., iron or platinum group metal, or oxide thereof) |
| | 121 | Metal or metal oxide containing catalyst |
| | 125 | With nonreactive material |
| | 131 | Soaking |
| | 132 | With heating in tubular confined stream |
| | 133 | Reforming (includes dehydrogenation, isomerization, cyclization, aromatization, alkylation, dealkylation reactions) |
| | 142 | Hydrogenation (saturation) |
| | 146 | Solids contacting and mixing |
| | 147 | Separate contiguous, dissimilar function, contacting zones |
| | 148 | Combined gravitating bed and suspension zones |
| | 149 | Solids of dissimilar composition |
| | 150 | Purging |
| | 152 | Solids replenishment, or selective discard |
| | 153 | Suspension system |
| | 154 | Start-up and shut down procedures |
| | 155 | Plural zones of similar function |
| | 157 | Liquid feed |
| | 158 | With augmented turbulence (in addition to normal mixing in bed) |
| | 159 | With temperature regulation |
| | 161 | Separation of entrained fines from effluents |
| | 163 | Fluidized dense bed |
| | 165 | Gravitating compact beds |
| | 166 | Liquid feeding |
| | 168 | Solids-vapor disengagement |
| | 169 | Plural zones of similar function (same chamber) |
| | 170 | Size stratification prevention |
| | 171 | Uniform solids withdrawal |
| | 172 | Preheating or quenching with solids |
| | 173 | Solids transferring |
| | 176 | Solids moving processes |
| | 177 | REFINING |
| | 178 | With reagent feed control |
| | 179 | Purifying used oil |
| | 180 | With added organic material |
| | 181 | Plural treating agents (sequential or simultaneous) |
| | 184 | Distillation or degassing |
| | 187 | Water removal (dehydration) |
| | 189 | Sweetening |
| | 190 | With hypochlorites |
| | 191 | With copper compounds |
| | 192 | With preliminary treatment of oil |
| | 193 | With subsequent treatment of the sweet oil |
| | 195 | Copper chloride and free oxygen containing gas |
| | 196 | With peroxides |
| | 197 | With lead compounds |
| | 203 | With alkali metal hydroxide or carbonate |
| | 207 | Nitrogen containing compound |
| | 208R | Sulfur removal (free or combined sulfur) |
| | 209 | With hydrogen |
| | 210 | Plural stage treatments with hydrogen |
| | 211 | With preliminary treatment of feed |
| | 212 | With subsequent treatment of product |
| | 213 | With solid catalyst or absorbent |
| | 218 | Split treatment |
| | 219 | With acids |
| | 220 | Plural stages of sulfur removal |
| | 221 | With preliminary treatment of feed |
| | 222 | With subsequent treatment of product |
| | 223 | Inorganic acid |
| | 226 | With alkali or alkali earth metal compound (except clays) |
| | 227 | Plural stages of sulfur removal |
| | 228 | With preliminary treatment of feed |
| | 229 | With subsequent treatment of product |
| | 230 | Alkali metal compound |
| | 236 | With nitrogen containing treating reagent |
| | 237 | With organic reagent |
| | 241 | With free halogen or nonmetal halide containing reagent |
| | 242 | With sulfur oxides |
| | 243 | With Group VI metal or compound |
| | 244 | With Group VIII metal or compound |
| | 245 | With silicon or compound thereof |
| | 246 | With Group IB metal or compound |
| | 247 | With Group IIB metal or compound |
| | 248 | With Group III metal or compound |
| | 249 | With Group IV, V, VII metal or compound |
| | 250 | Solids contacting and mixing |
| | 208M | Using free alkali metal |
| | 251R | Metal contaminant removal |
| | 254R | Nitrogen contaminant removal |
| | 255 | Gum or gum former removal |
| | 262.1 | Halogen contaminant removal |
| | 263 | Organic acid or phenol contaminant removal |
| | 264 | With hydrogen |
| | 265 | With acids |
| | 266 | Sulfuric acid |
| | 267 | With fluid rotation or agitation |
| | 268 | White oil making |
| | 269 | Split treatment |
| | 270 | Plural stages of acid treatment |
| | 271 | With preliminary treatment of the oil |
| | 273 | With subsequent treatment of the oil |
| | 276 | With nonwater additive |
| | 279 | Phosphorus containing acid |
| | 280 | Halogen containing acid |
| | 282 | Organic acid |
| | 283 | With alkali or alkali earth metal compound (except clays) |
| | 289 | With nitrogen containing compound |
| | 290 | With organic compound |
| | 292 | With boron, phosphorus, arsenic, antimony or bismuth containing treating agent |
| | 293 | With sulfur containing treating agent |
| | 294 | With free metal |
| | 295 | With Group IV, V, VI, VII or VIII metal compound |
| | 296 | With Group IB or IIB metal compound |
| | 297 | With Group III metal compound (except clays) |
| | 298 | With liquid treating agent (includes slurries of solids) |
| | 299 | With solid catalyst or absorbent |
| | 300 | Of particular physical shape or structure |
| | 301 | With preliminary treatment of the oil |
| | 302 | With subsequent treatment of the oil |
| | 303 | Plural treating stages |
| | 304 | Processes including downward movement of particles |
| | 305 | Solids rehabilitation |
| | 306 | Composite or plural treating agents |
| | 307 | Silicon or carbon containing treating agent |
| | 308 | FRACTIONATION |
| | 309 | Deasphalting |
| | 310R | Adsorption |
| | 311 | Liquid extraction with solvents |
| | 312 | With blending of separated fractions with each other or with feed |
| | 313 | Extractive distillation |
| | 314 | Plural stages with different oil miscible solvents |
| | 315 | With recycle of product of later extraction to earlier extraction stage |
| | 316 | Difference is mere change in proportions of solvents |
| | 317 | Counter current multistage extraction |
| | 318 | With recycle of oil |
| | 319 | With pressure variation |
| | 320 | With temperature gradient in extraction zone or between extraction zones |
| | 321 | With solvent rehabilitation |
| | 322 | Organic solvent containing |
| | 323 | With added solvent or solvent modifier |
| | 325 | Heterocyclic |
| | 328 | Nonoxo carbonylic |
| | 330 | Nitrogen-containing solvent |
| | 332 | Oxo compound containing |
| | 333 | Oxy compound |
| | 336 | Halogen containing |
| | 337 | Hydrocarbon |
| | 338 | Liquid sulfur dioxide |
| | 339 | Liquid-liquid contacting |
| | 340 | Recovery of mineral oil from natural or converted gases |
| | 347 | Distillation |
| | 348 | With nonvapor compound added prior to or during vaporization |
| | 349 | With nonvaporization treatment of liquid condensate or residue |
| | 350 | Rectification |
| | 351 | C1-C4 alkane removal |
| | 352 | Flash vaporizaton |
| | 353 | With heat recovery by indirect heat exchange |
| | 354 | Plural or combined with additional distillation |
| | 356 | With added gas or vapor (e.g., steam) |
| | 357 | Vacuum or pressure |
| | 358 | With liquid product recycle to rectification zone |
| | 359 | Spraying |
| | 360 | Filming |
| | 361 | Flash vaporization |
| | 362 | With added gas or vapor |
| | 364 | Plural stages of vaporization |
| | 366 | Vacuum or pressure |
| | 367 | With agitation of distilland |
| | 368 | Condensatin by direct heat exchange |
| | 369 | Volatile treatment other than condensation |
| | 370 | MISCELLANEOUS |
| CROSS-REFERENCE ART COLLECTIONS | ||
| | 950 | PROCESSING OF "FISCHER-TROPSCH" CRUDE |
| | 951 | SOLID FEED TREATMENT WITH A GAS OTHER THAN AIR, HYDROGEN OR STEAM |
| | 952 | SOLID FEED TREATMENT UNDER SUPERCRITICAL CONDITIONS |
| FOREIGN ART COLLECTIONS | ||
| FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |
| DIGESTS | ||
| | DIG1 | AUTOMATIC CONTROL |
| | DIG2 | MOLECULAR SIEVE |