Patents for C07C 41 - Preparation of ethers; Preparation of compounds having groups, groups or groups (17,242) |
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07/24/1996 | CN1127243A Method for purification ether containing two distilation steps |
07/24/1996 | CN1127242A Catalysis synthesizing technology for ether |
07/23/1996 | US5539135 Reaction of fatty acid with hydrotalcite and other minerals, catalyst for the addition of ethylene and propylene oxides to active hydrogen compounds |
07/23/1996 | US5539129 Nonionic amphiphilic compounds derived from glycerol, a process for preparing them, and corresponding intermediate compounds |
07/23/1996 | CA2044388C Process for the preparation of dialcoxybutenes |
07/18/1996 | WO1996021636A1 Process for producing end-group-locked non-ionic tensides |
07/18/1996 | WO1996021635A1 Process for preparing alkyl tertiary-alkyl ether |
07/18/1996 | DE19500842A1 Verfahren zur Herstellung von endgruppenverschlossenen nichtionischen Tensiden A process for the production of end-capped nonionic surfactants |
07/18/1996 | DE19500798A1 3-alkoxy- and 3-acyloxy-2-hydroxy:propane-1-sulphonic acid catalysts |
07/18/1996 | CA2210230A1 Process for preparing alkyl tertiary-alkyl ether |
07/16/1996 | US5536887 Process comprising two extractive distillation steps for the production of tertiary ethers from a C4 or C5 feedstock |
07/16/1996 | US5536886 Process for preparing alkyl ethers |
07/16/1996 | US5536885 Production of perfluoro(alkyl vinyl ethers) |
07/16/1996 | US5536870 Process for preparing olefins |
07/16/1996 | US5536833 Process for the preparation of intermediates useful in the preparation of pyranyl cyanoguanidine derivatives |
07/10/1996 | CN1126517A Gas chromatographic analysis of fluoromethyl 1,1,1,3,3,3-hexafluoroisopropylether |
07/10/1996 | CN1032252C Method of removing catalyst residues to procide a purified polyol |
07/04/1996 | WO1996020233A1 Process for preparation of epoxy compounds |
07/04/1996 | WO1996020232A1 Process for preparation of allyl ether, thioether and amine compounds |
07/03/1996 | EP0719758A1 Process for the production of aromatic olefines |
07/03/1996 | EP0719752A1 Process for producing polyglycerols and polyglycerol esters |
07/03/1996 | EP0719751A1 A gradient catalyst system for the integrated production of isopropyl alcohol and diisopropyl ethers |
07/03/1996 | CN1125936A Method of purifying fluoromethyl 1,1,1,3,3,3-hexafluoroisopropyl ether |
07/03/1996 | CN1125935A Method of purifying fluoromethyl 1,1,1,3,3,3-hexafluoroisopropyl ether |
07/03/1996 | CN1125934A Process for preparing phenethanol ethers |
07/02/1996 | CA1338433C Preparation of ó-arylalkanoic acids |
07/01/1996 | CA2161182A1 Gradient catalyst system for the integrated production of isopropyl alcohol and diisopropyl ethers |
06/27/1996 | WO1996019548A2 Regenerant recycle process for oxygenate removal |
06/27/1996 | WO1996019288A1 Sol-gel derived porous microcomposite of perfluorinated ion-exchange polymer and metal oxide for olefin isomerization |
06/27/1996 | DE19506021C1 Catalytic enantioselective redn. of ketone cpds. |
06/26/1996 | EP0718270A2 Process for the preparation of polyol alkyl ethers |
06/26/1996 | EP0718269A1 Integrated process for the production of ter-amyl alkyl ethers |
06/26/1996 | EP0718265A2 Method for producing an alcohol |
06/26/1996 | CN1125216A Method for producing dimethyl ether from methyl alcohol |
06/26/1996 | CN1032131C Alkoxylation process catalyzed by sodium-or potassium barium phosphate |
06/25/1996 | US5530165 Using a hydrocarbon additive stream to alter compositions of overhead and bottoms products of etherification effluent fractionator; reduces alcohol concentration in overhead |
06/19/1996 | EP0717021A1 Method for working up a surfactant-containing reaction mixture |
06/19/1996 | CN1124955A Preparation of cyclopropane esters |
06/19/1996 | CN1032059C Process for isomerizing linear olefins to isoolfins |
06/18/1996 | US5527970 Using macroreticular acid resin catalyst |
06/18/1996 | US5527969 Process for preparing acetaldehyde diethyl acetal |
06/13/1996 | CA2164783A1 Integrated process for the production of ter-amyl alkyl ethers |
06/12/1996 | EP0716104A1 A process for the manufacture of paraformaldehyde |
06/12/1996 | EP0716069A1 Process for the preparation of alkyl 4-bromophenyl ethers |
06/12/1996 | CN1124242A A process for the manufacture of paraformaldehyde |
06/05/1996 | EP0714878A1 Sequential reaction of T-butanol and isobutylene with methanol |
06/05/1996 | DE19500056C1 New organic cpds. of niobium, tantalum or titanium for electro-ceramics |
06/04/1996 | US5523502 Flexible light olefins production |
06/04/1996 | US5523496 Fluorination of acetals, ketals and orthoesters |
06/04/1996 | US5523495 Reacting ketone or aldehyde with a dihalopropene in presence of zinc powder, water and acid yields a haloallylcarbinol which can be dehalogenated with a base, nonexplosive |
06/04/1996 | US5523493 Process for the production of at least one alkyl tertiobutyl ether from natural gas |
06/04/1996 | US5523491 Process of producting ether compound |
06/04/1996 | US5523272 Catalyst and process for the production of alkyl tert alkyl ether from hydrocarbon feedstocks with high levels of sulfur |
06/04/1996 | US5523061 Reaction section divided into several beds by separating plates; permits greater contact between reactants and catalyst |
05/29/1996 | EP0713497A1 Liquid phase and aqueous solutions of poly(vinyl methyl ether) from highly purified vinyl methyl ether monomer |
05/29/1996 | EP0585265B1 Process for producing epoxy open ring products with a defined residual epoxy oxygen content |
05/29/1996 | CN1123269A Method for preparation of ethyl tert-butyl ether and prdouct thereof and application thereof |
05/29/1996 | CA2159413A1 Sequential reaction of tba and isobutylene with methanol |
05/23/1996 | DE19537997A1 New aromatic fluorinated vinyl ether(s), for prepn. of fluoro-elastomers |
05/22/1996 | EP0540674B1 Improved catalytic olefin hydration for ether production |
05/21/1996 | US5518643 Lubricating oil containing a polyvinyl ether compound for compression-type refrigerators |
05/17/1996 | WO1996014377A1 Method of preparing non-ionic surfactants having closed end groups |
05/15/1996 | EP0711601A2 Catalyst for multistage etherification with high conversion of T-butanol |
05/15/1996 | EP0711268A1 Method for preparing alkoxylation products in the presence of additive-modified mixed hydroxides |
05/15/1996 | EP0711264A1 Process for the preparation of perfluoroalkyl iodide |
05/15/1996 | CA2159410A1 Catalyst for multistage etherification with high conversion of t-butanol |
05/14/1996 | CA1338328C Process for the production of 1-phenyl-2-cyclopropyl-ethan-1-ol-compounds, derivatives therefrom and intermediates therefore |
05/09/1996 | WO1996013477A1 Polyether lubricants |
05/09/1996 | DE4439086A1 Verfahren zur Herstellung von endgruppenverschlossenen nichtionischen Tensiden A process for the production of end-capped nonionic surfactants |
05/08/1996 | EP0710641A1 Process for the preparation of 1,1-dichloromethyl methyl ether and 1,1-dichloromethyl ethyl ether |
05/02/1996 | DE4438581A1 Prepn. of di:alkyl ether(s) with increased rate and reduced by-prods. |
05/01/1996 | EP0709359A1 Process for the preparation of monovinyl ethers |
05/01/1996 | EP0709357A1 Method for the cross-coupling of aromatic halo compounds or perfluoroalkanesulphonates with terminal alkynes |
04/29/1996 | CA2161601A1 Process for cross-coupling aromatic halogen compounds or perfluoroalkylsulfonates with terminal alkynes |
04/25/1996 | DE4443592C1 Prepn. of alkyl-4-bromo-phenyl ether derivs., useful as intermediates |
04/23/1996 | US5510566 N-butane is used to regenerate a molecular sieve adsorption bed; contaminated n-butane is purified by distillation |
04/23/1996 | US5510554 Reacting a 1-halo-2-substituted naphthalene with a 2-substituted-1-naphthyl-magnesium halide in the presence of a palladium/phosphine catalyst |
04/23/1996 | US5510542 Process and apparatus for producing diglycerin |
04/23/1996 | US5510541 Reacting conjugated diene with an aliphatic alcohol or diol in presence of catalyst system containing a palladium salt or complex, a alkyl, alkaylcyloalkyl or arylalkylphoshine ligand and a inorganic or organic base |
04/18/1996 | WO1996011227A1 Continuous bromination process and products thereof |
04/18/1996 | WO1996011178A1 Method of refining methylal |
04/17/1996 | EP0706993A1 Method of purifying acifluorfen |
04/17/1996 | EP0706985A1 Production of a high purity ether product |
04/17/1996 | EP0706506A1 Fluorinated bis-ethers and process for preparing them and fluorinated methyl ethers |
04/17/1996 | CN1120629A Silencing apparatus |
04/17/1996 | CN1120628A Multifunctional self-walking driller |
04/17/1996 | CN1120546A Acid-catalyzed fabrication of precursors for use in making polyols and ethylene oxide capping of polyols made using double metal cyanide catalysts |
04/17/1996 | CN1120529A Method of purifying acifluorfen |
04/17/1996 | CN1120528A Production of a high purity ether product |
04/16/1996 | US5507922 Preparation of benzaldehyde dialkyl acetals |
04/10/1996 | EP0705239A1 Process for preparing phenethanol ethers |
04/09/1996 | US5506364 Process for the production of bis(fluoromethyl)ether and difluoromethane |
04/09/1996 | US5505855 Heating, pressurizing, passing through reverse osmosis membrane |
04/04/1996 | DE4434823A1 Continuous prodn. of hydroxy-benzyl alkyl ether |
04/03/1996 | EP0704442A2 Natural circulation reactor and use |
04/03/1996 | EP0704420A1 Process for producing enantiomerically enriched guaifenesin |
04/03/1996 | EP0703885A1 Synthesis of substituted triphenylenes, useful as discotic liquid crystals |
04/03/1996 | CN1119836A Alkoxylation catalyst, process for the preparation of the catalyst and process for preparing alkoxylate with the use of the catalyst |
04/02/1996 | US5504263 Production of hydrofluorocarbons |
04/02/1996 | US5504259 Process to convert biomass and refuse derived fuel to ethers and/or alcohols |