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Class Information
Number: 518
Name: Chemistry: fischer-tropsch processes; or purification or recovery of products thereof >
Description: This class provides for processes which include (a) the reaction of hydrogen with carbon monoxide, carbon dioxide or mixtures of these carbon oxides (Fischer-Tropsch synthesis) to yield one or more carbon compounds, e.g., hydrocarbons, alcohols, esters, acids, ketones, aldehydes, etc., or (b) the purification, separation, conversion or treatment of one or more of the products resulting from the Fischer-Tropsch synthesis, such as by saponification, oxidation, adsorption, solvent extraction, etc.


Class Number Class Name No. of Patents
518/722

Adsorption with a solid material

23
518/727

Forming salts or oximes of oxygen containing compounds to purify or recover

0
518/713

Group ib metal containing catalyst utilized for the fischer-tropsch reaction (i.e., cu, ag, or au)

298
518/714

Group vib metal containing catalyst utilized for the fischer-tropsch reaction (i.e., cr, mo, or w)

201
518/715

Group viii metal containing catalyst utilized for the fischer-tropsch reaction (i.e., fe, co, ni, ru, rh, pd, os, ir, or pt)

478
518/717

Group ia or iia light metal containing material utilized during the fischer tropsch step of the process (i.e., li, na, k, rb, cs, be, mg, ca, sr, or ba)

153
518/718

In the form of a salt

17
518/719

Iron containing catalyst

108
518/720

Pretreatment of the catalyst

41
518/721

The catalyst contains a metal in addition to the iron, or another material utilized contains a metal other than iron (e.g., as a promoter, retarder, etc.)

108
518/716

Rhodium containing catalyst

67
518/726

Hydrogenation with gaseous hydrogen to purify or recover

42
518/709

Including regeneration of catalyst

84
518/710

Solvent utilized

18
518/700

Liquid phase fischer-tropsch reaction

599
518/701

Rhodium containing catalyst utilized

61
518/728

Miscellaneous

145
518/706

Plural zones each having a fischer-tropsch reaction

134
518/707

Diverse catalysts utilized in at least two zones

44
518/708

Water utilized

20
518/723

Salt containing extractant utilized

3
518/724

Solvent extraction utilized

11
518/725

Alcohol containing extractant utilized

13
518/712

Temperature control or regulation of the fischer-tropsch reaction

109
518/705

Treatment of feed or recycle stream

215
518/711

Water utilized during the fischer-tropsch step of the process

46
518/702

With preliminary reaction to form hydrogen or a carbon oxide

224
518/703

Gaseous oxygen utilized in the preliminary reaction

272
518/704

Water utilized in the preliminary reaction

237
 
 
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