| Patents for C07C 7 - Purification, separation orstabilisation of hydrocarbons; Use of additives (13,802) |
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| 05/02/1978 | US4087335 Inhibitors for vinylbenzyl chloride and vinyltoluene decomposition |
| 04/25/1978 | US4086288 Acetylenes removal from olefin streams for alkylation by dimethyl formamide absorption |
| 04/25/1978 | US4086147 Polymerization inhibitor for vinyl aromatic compounds |
| 04/18/1978 | US4085158 Disproportionation |
| 04/11/1978 | US4083887 Carbonyl removal from gaseous streams using ZnS |
| 03/28/1978 | US4081355 Solvent extraction |
| 03/28/1978 | US4081332 Extractive distillation of C5 hydrocarbons using acetonitrile and additives |
| 03/14/1978 | US4079094 Separation of ethylbenzene with an adsorbent comprising SR and K exchanged X or Y zeolite |
| 03/14/1978 | US4079087 Three phase crystallization of bisphenol A |
| 03/07/1978 | US4078011 Selective hydrogenation of dienes using nickel/aluminum sulfide catalyst |
| 02/28/1978 | US4076762 Oxidation with sodium hypochlorite-ruthenium dioxide system |
| 02/28/1978 | US4076595 Methylethylsulfone, methylethylketone, acetone, tetrahydrofuran |
| 02/21/1978 | US4075287 Fractional distillation |
| 02/21/1978 | US4075256 Removal of carbonyl compounds with calcium aluminate |
| 02/14/1978 | US4073823 Alkylation process utilizing HF regenerator stream to a multi-tray main fractionator |
| 02/14/1978 | US4073819 2,6-Dimethylnaphthalene extraction process |
| 01/24/1978 | US4070419 Polymerization of styrene |
| 01/24/1978 | US4070410 Method of isolating individual normal alkanes from petroleum stock |
| 01/24/1978 | US4070409 Dimethylacetamide solvent |
| 01/24/1978 | US4070408 Aromatics extraction and distillation process |
| 01/24/1978 | US4070165 Pretreatment of raw natural gas prior to liquefaction |
| 01/17/1978 | US4069172 Dried and calcined faujasite zeolite containing ammonium and barium and/or potassium ions |
| 01/10/1978 | US4067921 Primary adjunct, continuous diene process |
| 01/03/1978 | US4066713 Process for the addition of organic acids to acetylenic compounds contained in inorganic or organic hydrocarbon streams |
| 01/03/1978 | US4066423 Adsorption-absorption vapor recovery system |
| 12/27/1977 | US4065381 Hydrogen fluoride cocatalyst |
| 12/20/1977 | US4064190 Removal of acetylenic contaminants by copper-tin and/or lead zinc aluminate |
| 12/06/1977 | US4061849 Process for the recovery of gaseous or vaporous monomers from reaction off-gases |
| 12/06/1977 | US4061724 Crystalline silica |
| 12/06/1977 | US4061545 Polymerization inhibitor for vinyl aromatic compounds |
| 11/29/1977 | US4060567 Alkali metal amide |
| 11/29/1977 | US4060566 Membrane process for separating materials |
| 11/22/1977 | US4059505 Separating hydrocarbons |
| 11/08/1977 | US4057403 Gas treating process |
| 11/01/1977 | US4056577 Separation of acid-hydrocarbon emulsions and alkylation process utilizing said separation |
| 11/01/1977 | US4056471 Adsorption arrangement |
| 11/01/1977 | US4056462 Separating hydrocarbon mixtures by emulsification |
| 10/18/1977 | US4054613 Oxidative dehydrogenation |
| 10/11/1977 | US4053535 Process for producing isoparaffin-olefin alkylate having improved octane number |
| 10/11/1977 | US4053533 Oxidation of acetylenic impurities with copper manganite catalyst |
| 10/11/1977 | US4053392 Fractionation process |
| 10/11/1977 | US4053369 Extractive distillation |
| 10/11/1977 | US4053367 Temperature control of integrated fractionation and claytreating of hydrocarbons |
| 09/27/1977 | US4051192 Separation of bi-alkyl substituted monocyclic aromatic isomers |
| 09/27/1977 | US4051191 Solid phosphoric acid catalyzed alkylation of aromatic hydrocarbons |
| 09/27/1977 | US4050993 Distillation of readily polymerizable ethylenically unsaturated compounds |
| 09/20/1977 | US4049743 Catalyst of zinc aluminate promoted with copper, manganese, and rare earth metal |
| 09/20/1977 | US4049742 Solvent extraction |
| 09/20/1977 | US4049731 Vinyl monomers, biphenol derivative as polymerization inhibitor |
| 09/13/1977 | US4048240 Method of oxidizing or bleaching a contaminant in a non-aqueous fluid |
| 09/06/1977 | US4046824 Process for selective hydrogenation of ethylbenzene |
| 09/06/1977 | US4046641 Process and apparatus for the separation of crude benzol and naphthalene from washing oil |
| 08/30/1977 | US4045506 Separation of hydrocarbon mixtures by catalytic dealkylation |
| 08/23/1977 | US4044098 Removal of mercury from gas streams using hydrogen sulfide and amines |
| 08/23/1977 | US4044067 Purification of unsaturated compounds |
| 08/23/1977 | US4044062 Hydrocarbon separation |
| 08/16/1977 | US4042490 Hydrocarbon upgrading process |
| 08/16/1977 | US4042350 Methods and applications of preparative scale chromatography |
| 08/16/1977 | US4042332 Separation method of methane from other hydrocarbons than methane |
| 08/09/1977 | US4041129 Removal of acidic gases from hydrocarbon streams |
| 08/09/1977 | US4041102 Caustic treatment of alkylate-containing hydrocarbon |
| 08/09/1977 | US4041091 Transalkylation of toluene and alkylbenzenes |
| 08/09/1977 | US4040912 Polymerization inhibitor for vinyl aromatic compounds |
| 08/09/1977 | US4040911 Process for inhibiting the polymerization of styrene |
| 08/02/1977 | US4039603 Multistage, refractory metal oxide for decomposition of organic fluorides |
| 08/02/1977 | US4039602 Solvent extraction |
| 08/02/1977 | US4039599 P-xylene |
| 08/02/1977 | US4039590 Process for the synthesis of methyl-tert-butyl ether from methanol and isobutylene in the presence of butadiene |
| 07/26/1977 | US4038336 Purification of unsaturated compounds |
| 07/26/1977 | US4038334 Fractional distillation pressure control for separation of aromatic alkylation product |
| 07/26/1977 | US4038332 Separation of ethyl fluoride |
| 07/26/1977 | US4038156 Butadiene recovery process |
| 07/19/1977 | US4036904 Isomerization of allenes in a hydrocarbon stream using magnesium oxide catalyst |
| 07/19/1977 | US4036745 Process for separating normal and isoparaffins |
| 07/19/1977 | US4036744 Adsorption using a sodium aluminum silicate zeolite |
| 07/12/1977 | US4035445 Hydrotreating of recycled block copolymer solvent |
| 07/12/1977 | US4035433 Catalysts |
| 07/12/1977 | US4035167 Cyclohexane, cyclohexene, 1-chlorobutane, 1,1,1-trichloroethane |
| 07/05/1977 | US4033829 With dinitrophenol solution from styrene still residues |
| 06/28/1977 | US4032562 Stabilizers |
| 06/21/1977 | US4031157 Etherification, alcohol, glycol |
| 06/21/1977 | US4031156 Separation and recovery of ethylbenzene by dual desorbent composition and temperature separation processes |
| 06/21/1977 | US4031155 Dual desorbent composition and temperature separation processes |
| 06/21/1977 | US4031153 Succinonitrile |
| 06/21/1977 | US4031151 Separation of hydrocarbons |
| 06/14/1977 | US4029717 Simulated moving bed adsorption-desorption process for paraxylene recovery |
| 06/07/1977 | US4028428 Zeolite adsorption |
| 06/07/1977 | US4028069 Purification and drying of hydrocarbon streams with adsorbents |
| 05/31/1977 | US4026795 Dimethyl ether |
| 05/24/1977 | US4025574 Hydrocarbon separations |
| 05/24/1977 | US4025573 Separation process |
| 05/24/1977 | US4025321 Fixed bed of activated zeolite molecular seive counter-currently purged with oxygen depleted hydrocarbon gas |
| 05/17/1977 | US4024203 Sulfuric-fluorosulfuric-sulfonic-hydrofluoric acids and sulfones as catalysts |
| 05/17/1977 | US4024028 Dimethylsulfone, methyl-ethyl-ketone, sulfolane |
| 05/17/1977 | US4024026 Temperature control of integrated fractionation and claytreating of hydrocarbons |
| 05/10/1977 | US4022839 Polyacrylamide as settling agent |
| 05/03/1977 | US4021499 Process for separating ethylbenzene |
| 05/03/1977 | US4021312 Process to separate ethyl fluoride and HF |
| 04/26/1977 | US4020119 Selective hydrogenation process |
| 04/26/1977 | US4020114 Process for separating butadiene from C4 hydrocarbons streams obtained by stream-cracking |