US Patent Class 201
DISTILLATION: PROCESSES, THERMOLYTIC-- Main Headings



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Current as of: June, 1999
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CLASS NOTES
1  DF  WITH MEASURING, TESTING OR INSPECTING
2  DF  WITH CLEANING OF APPARATUS
2.5  DF  NON-MINERAL DISTILLAND WITH CATALYST OR CHEMICAL TREATMENT OF VOLATILE COMPONENT
3  DF  WITH PHYSICAL SEPARATION OF SOLID BY-PRODUCT FROM REMOVED ADMIXTURE {1}
5  DF  AND SHAPING TO DESIRED FORM OR CONFIGURATION {1}
7  DF  WITH COMMINUTING {1}
9  DF  AND SURFACE TREATING MATERIAL TO REDUCE OR PREVENT AGGLOMERATING OR FOAMING OR SWELLING DURING DISTILLATION
10  DF  BY CONDUCTION USING PREHEATED CHARGE CONTAINER OR PREHEATED INERT DISPARATE SOLID OR PREHEATED LIQUID {2}
13  DF  USING A CARBONIZATION PRODUCT AS INDIRECT HEAT SOURCE {1}
17  DF  AND REFINING CHAR, E.G., DESULFURIZING COKE
18  DF  UTILIZING APPARATUS OF PARTICULAR COMPOSITION
19  DF  APPLYING ELECTRICAL ENERGY DIRECTLY TO MATERIAL
20  DF  ADDING DISPARATE NON-GASEOUS MATERIAL TO FEED
21  DF  FEED OF TWO OR MORE CARBONACEOUS MATERIAL (AT LEAST THE PREDOMINATE ONE BEING SOLID) {3}
25  DF  FEED OTHER THAN COAL, OIL SHALE OR WOOD
26  DF  IN PARALLEL STAGES SIMULTANEOUSLY
27  DF  INCLUDING BURNING OF VAPORIZED PRODUCT
28  DF  SEQUENTIALLY REMOVING, TREATING AND RECYCLING A PRODUCT {1}
30  DF  AND FRACTIONALLY CONDENSING VAPORS
31  DF  FLUIDIZED BED
32  DF  IN A MOVING BED {2}
35  DF  CARBONIZING UNDER PNEUMATIC PRESSURE OR VACUUM
36  DF  AND ADDING DISPARATE GASEOUS MATERIAL TO THE CARBONIZING ZONE {2}
39  DF  QUENCHING CHAR WITH AN INERT MATERIAL
40  DF  ARRANGING THE CARBONACEOUS MATERIAL IN THE CARBONIZING ZONE
41  DF  MISCELLANEOUS
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CROSS-REFERENCE ART COLLECTIONS
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42  DF  PARTICLE SIZE
43  DF  AN EXTRANEOUS, CYCLICALLY CIRCULATED, INERT HEATING GAS
44  DF  PLURAL DISTINCT TEMPERATURE STAGES
45  DF  DISTILLATE TREATMENT OR CONSERVATION