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Class Information
Number: 208/400
Name: Mineral oils: processes and products > By treatment of solid mineral, e.g., coal liquefaction, etc.
Description: Process wherein a liquid oily or tarlike hydrocarbonaceous mixture is recovered from a solid mineral material feed, such as coal, diatomite, oil shale, tar sand, etc.
Sub-classes under this class:
| Class Number |
Class Name |
Patents |
| 208/403 |
Chemical modification of solids before hydrogenation |
66 |
| 208/401 |
Including a test or measurement |
35 |
| 208/426 |
Including agglomeration, comminution or size-classification of solids |
134 |
| 208/427 |
Including burning of feed or product |
259 |
| 208/415 |
Including contact of feed with liquid produced in the process, i.e., recycle |
130 |
| 208/428 |
Including contact with extraneous additive other than hydrogen, e.g., solvent, etc. |
147 |
| 208/412 |
Plural hydrogenation steps |
92 |
| 208/407 |
Specified agitation or circulation in gas contact zone |
78 |
| 208/424 |
Specified procedure to improve separation of solids from liquid product |
160 |
| 208/402 |
Using electrical, magnetic or wave energy |
45 |
| 208/404 |
Using molten additive, e.g., heat carrier, etc. |
18 |
| 208/419 |
Using specifically added catalyst during hydrogenation |
130 |
| 208/414 |
With hydrogen production from water |
103 |
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7575730 |
Method of introducing or reintroducing a gas into a slurry vessel |
Aug. 18, 2009 |
| 7419585 |
Process for upgrading residua |
Sep. 2, 2008 |
| 7285694 |
Thermobaric molecular fractionation |
Oct. 23, 2007 |
| 7112311 |
Cooling method of hydrotreating plant and cooling unit therefor |
Sep. 26, 2006 |
| 7070758 |
Process and apparatus for generating hydrogen from oil shale |
Jul. 4, 2006 |
| 7008528 |
Process and system for continuously extracting oil from solid or liquid oil bearing material |
Mar. 7, 2006 |
| 6607569 |
Method of estimating reaction product in coal liquefying reaction |
Aug. 19, 2003 |
| 6504068 |
Method for converting a plastic waste into oil in a stainless steel reactor |
Jan. 7, 2003 |
| 6464860 |
Process and apparatus for generating carbon monoxide and extracting oil from oil shale |
Oct. 15, 2002 |
| 6319725 |
Method for estimating composition of product obtained by liquefaction of coal |
Nov. 20, 2001 |
| 6258259 |
Iron sulfide and process for producing the same |
Jul. 10, 2001 |
| 6214213 |
Solvent process for bitumen seperation from oil sands froth |
Apr. 10, 2001 |
| 6110359 |
Method for extracting bitumen from tar sands |
Aug. 29, 2000 |
| 6060631 |
Process for the conversion of plastic to produce a synthetic crude oil |
May. 9, 2000 |
| 6007699 |
Autothermal methods and systems for fuels conversion |
Dec. 28, 1999 |
| 6005149 |
Method and apparatus for processing organic materials to produce chemical gases and carbon char |
Dec. 21, 1999 |
| 5964985 |
Method and apparatus for converting coal to liquid hydrocarbons |
Oct. 12, 1999 |
| 5936134 |
Method for obtaining storable products of calorific energy and synthetical oils, by processing waste rubber materials with coal |
Aug. 10, 1999 |
| 5917102 |
Device for depolymerizing used and waste plastics |
Jun. 29, 1999 |
| 5841011 |
Process for producing light-weight oil from waste plastics containing phthalic polyester and/or polyvinyl chloride |
Nov. 24, 1998 |
| 5821395 |
Waste processing |
Oct. 13, 1998 |
| 5789636 |
Process for recovering synthetic raw materials and fuel components from used or waste plastics |
Aug. 4, 1998 |
| 5783065 |
Method for coal liquefaction |
Jul. 21, 1998 |
| 5780696 |
Process for recycling plastic waste |
Jul. 14, 1998 |
| 5726056 |
Fuel product produced by demetalizing a fossil fuel with an enzyme |
Mar. 10, 1998 |
| 5710087 |
Process for catalytic conversion of water and carbon dioxide to low cost energy, hydrogen, carbon monoxide, oxygen and hydrocarbons |
Jan. 20, 1998 |
| 5505839 |
Method of coal liquefaction |
Apr. 9, 1996 |
| 5496465 |
Vibrating bed coal pyrolysis system |
Mar. 5, 1996 |
| 5492618 |
Recovery of hard acids and soft bases from decomposed coal |
Feb. 20, 1996 |
| 5489376 |
Recovery of hard acids and soft bases from decomposed coal |
Feb. 6, 1996 |
| 5426259 |
Method for oil-extracting treatment of wastes |
Jun. 20, 1995 |
| 5360537 |
Apparatus and method for retorting oil shale and like materials |
Nov. 1, 1994 |
| 5338442 |
Process for converting and upgrading organic resource materials in aqueous environments |
Aug. 16, 1994 |
| 5336819 |
Liquefaction of cellulose |
Aug. 9, 1994 |
| 5308477 |
Method for coal liquefaction |
May. 3, 1994 |
| 5298157 |
Coal depolymerization utilizing hard acid/soft base |
Mar. 29, 1994 |
| 5296133 |
Low ash coal products from depolymerized coal |
Mar. 22, 1994 |
| 5294349 |
Coal depolymerization and hydroprocessing |
Mar. 15, 1994 |
| 5292429 |
Process for recovery and treatment of a diverse waste stream |
Mar. 8, 1994 |
| 5286374 |
Process for cracking waste rubber tires |
Feb. 15, 1994 |
| 5277796 |
Pretreating oil shale with organic acid to increase retorting yield and process efficiency |
Jan. 11, 1994 |
| 5266189 |
Integrated low severity alcohol-base coal liquefaction process |
Nov. 30, 1993 |
| 5256278 |
Direct coal liquefaction process |
Oct. 26, 1993 |
| 5250175 |
Process for recovery and treatment of hazardous and non-hazardous components from a waste stream |
Oct. 5, 1993 |
| 5248413 |
Process for removing sulfur and producing enhanced quality and environmentally acceptable products for energy production from coal |
Sep. 28, 1993 |
| 5242580 |
Recovery of hydrocarbons from hydrocarbon contaminated sludge |
Sep. 7, 1993 |
| 5228982 |
Liquefaction of decarboxylated carbonaceous solids |
Jul. 20, 1993 |
| 5200063 |
Coal hydroconversion process comprising solvent enhanced pretreatment with carbon monoxide |
Apr. 6, 1993 |
| 5100536 |
Method of processing substances |
Mar. 31, 1992 |
| 5084160 |
Method for solubilization of low-rank coal using low molecular weight cell-free filtrates derived from cultures of coriolus versicolor |
Jan. 28, 1992 |
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