| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 03/31/1999 | EP0904259A1 Processes using multistaged reactors |
| 03/31/1999 | EP0837842A4 Methods and devices for making intermediate oxidation products by controlling conversions and temperatures in an atomized liquid |
| 03/31/1999 | EP0799173B1 Carbonylation of olefins |
| 03/31/1999 | EP0770052B1 Process for carbonylating olefins |
| 03/31/1999 | EP0742788B1 Process for the preparation of a linear formyl compound |
| 03/31/1999 | CN1042701C Catalyst for preparing cis-anhydride by n-butane oxidation |
| 03/25/1999 | WO1999014182A1 Method for the fractional condensation of a hot gas mixture containing acrylic acid or methacrylic acid and having a high proportion of non-condensable constituents |
| 03/25/1999 | WO1999014181A1 Method for producing acrylic acid and methacrylic acid |
| 03/25/1999 | WO1999014180A1 Method for preparing light-coloured ether carboxylic acids |
| 03/25/1999 | WO1999014179A1 Methods and reactor devices for removing catalyst after oxidation of hydrocarbons |
| 03/25/1999 | WO1999014178A1 Methods of recycling catalyst in oxidations of hydrocarbons |
| 03/25/1999 | WO1999013980A1 Catalysts for the oxidation of ethane to acetic acid, processes of making same and processes of using same |
| 03/25/1999 | DE19743621C1 Oxidation of primary alcohol to aldehyde and acid |
| 03/25/1999 | DE19724389C1 Production of di:methyl 2,6-naphthalene-di:carboxylate |
| 03/25/1999 | CA2304121A1 Methods of recycling catalyst in oxidations of hydrocarbons |
| 03/25/1999 | CA2304025A1 Methods and reactor devices for removing catalyst after oxidation of hydrocarbons |
| 03/25/1999 | CA2303445A1 Method for producing acrylic acid and methacrylic acid |
| 03/25/1999 | CA2303373A1 Method for the fractional condensation of a hot gas mixture containing acrylic acid or methacrylic acid and having a high proportion of non-condensable constituents |
| 03/24/1999 | EP0903334A1 Halogenated aromatic derivatives and process for the preparation thereof |
| 03/24/1999 | EP0903332A1 Process for preparing substituted phenylpropenen |
| 03/24/1999 | EP0902787A1 A catalyzed process for producing metal carboxylates for use as animal feed supplements |
| 03/24/1999 | CN1211972A Production of aromatic polycarboxylic acids |
| 03/24/1999 | CN1211971A Process for preparing free 'alpha'-hydroxy acids from ammonium salts thereof |
| 03/24/1999 | CN1211969A Process for preparing 1,6-hexane diol and caprolacton |
| 03/24/1999 | CN1211968A Mixture containing monomers and stabilizers |
| 03/24/1999 | CN1211471A Loaded ion-exchange resins, their preparation and uses |
| 03/23/1999 | US5886236 Process for producing aldehyde acid salts |
| 03/23/1999 | US5886220 Incorporating water and metallic salt of dithiocarbamic acid as a polymerization inhibitor in production of acrylic or mathacrylic or other vinyl compounds |
| 03/23/1999 | US5886219 Process for preparing malonic acid and alkylmalonic acids |
| 03/23/1999 | US5886218 Reacting 3,4-dichlorotoluene with acetyl chloride or chloroacetyl chloride using a friedel-crafts catalyst; oxidizing the acetylated intermediate in the presence of an alkali to produce the salt subsequently hydrolyzed |
| 03/23/1999 | US5886210 Method for preparing aromatic compounds |
| 03/23/1999 | US5886204 Reacting ruthenium (iv) oxide with stoichiometric amount of a hydrazine reductant in presence of acetic acid |
| 03/23/1999 | US5886057 Production of dicarboxylic acids |
| 03/23/1999 | US5885922 Multimetal oxide materials |
| 03/23/1999 | US5885919 Phosphorus/vanadium catalyst preparation |
| 03/18/1999 | WO1999012883A1 Method for producing cyclopentanone and cyclopentene-1-carboxylic acid and their esters |
| 03/18/1999 | WO1999012882A1 Method of making hydrogenated acids |
| 03/18/1999 | WO1999012873A1 Polymer gel and process for the activation of active hydrogen compounds |
| 03/18/1999 | WO1999012432A1 Impregnated salts, a method for producing said salts, and the use of the same |
| 03/18/1999 | WO1998055531A3 Process for the preparation of copolyesters |
| 03/18/1999 | DE19740632A1 Tetrafluoro-benzene derivative preparation |
| 03/18/1999 | DE19740253A1 Fractionating hot gas mixtures with a high non-condensables content |
| 03/18/1999 | DE19740252A1 A novel method of acrylic and methacrylic acid production by catalytic gas oxidation of 3 - 4C hydrocarbons |
| 03/18/1999 | CA2303372A1 Method for producing cyclopentanone and cyclopentene-1-carboxylic acid and their esters |
| 03/18/1999 | CA2302609A1 Method of making hydrogenated acids |
| 03/17/1999 | EP0902006A2 Oxidation stable oleins |
| 03/17/1999 | EP0902005A2 Metallic soap fine particles, process for producing same and use of same |
| 03/17/1999 | EP0902004A2 Process for producing aromatic carboxylic acid |
| 03/17/1999 | EP0901454A1 Process for the selective production of acetic acid |
| 03/17/1999 | CN1210761A Process for producing coated catalysts for synthesis of maleic anhydride by gas-phase oxidation |
| 03/17/1999 | CN1210760A Catalyst system used in process for production of acetic acid |
| 03/16/1999 | US5883295 Reaction of carbon monoxide with and methanol and methyl iodide |
| 03/16/1999 | US5883292 Reaction control by regulating internal condensation inside a reactor |
| 03/16/1999 | US5883289 Preparation of carboxylic acids or related esters by carbonylation in the presence of iridium |
| 03/16/1999 | US5883269 Method for controlling the reactivity of an ozonization reaction product |
| 03/16/1999 | CA2247231A1 Process for the preparation of 2,3,4,5,-tetrafluorobenzene derivates |
| 03/11/1999 | WO1999011256A1 L-threonate ferrous, as well as pharmaceutical composition and use for improving and treating human anemia thereof |
| 03/11/1999 | DE19739441A1 Verfahren zur Herstellung von Cyclopentanon und Cyclopenten-1-carbonsäure und deren Estern A process for preparing cyclopentanone and cyclopentene-1-carboxylic acid and esters thereof |
| 03/11/1999 | DE19739319A1 Getränkte Salze, ein Verfahren zu ihrer Herstellung ihre Verwendung Impregnated salts, a process for their preparation, their use |
| 03/10/1999 | EP0900774A1 Process for the preparation of acrolein and acrylic acid |
| 03/10/1999 | EP0900186A1 Process for the manufacture of hydroxycarbonyl compounds |
| 03/10/1999 | EP0900181A1 Branched surfactant manufacture |
| 03/10/1999 | EP0900180A1 Process for the preparation of fluoro compounds from the corresponding amines |
| 03/10/1999 | EP0900122A1 Process for isolation of dicarboxylic acids and hydroxycarboxylic acids |
| 03/10/1999 | EP0788404B1 Improved process for the calcination/activation of v/p/o catalyst |
| 03/10/1999 | CN1210511A Preparation of acrolein and acrylic acid |
| 03/10/1999 | CN1042400C 羰基化催化剂 Carbonylation catalyst |
| 03/09/1999 | US5880313 Process for producing aromatic carboxylic acid |
| 03/09/1999 | US5880311 Carbonylation method where carbonylatable compound is reacted with carbon monoxide in the presence of metal carbonyl iodide complex catalyst and alkyl iodide |
| 03/09/1999 | US5880231 Ring opening metathesis polymerization of cyclic olefins having unstrained cyclic rings; metallocene catalyst stable in the presence of functional groups; end groups from an alpha-omega difunctional olefin |
| 03/09/1999 | CA1340428C Process for the preparation and recovery of oxydiphthalic anhydrides |
| 03/04/1999 | WO1999010595A1 Method for the recovery of formic acid |
| 03/04/1999 | WO1999010527A2 Method for isolating anionic organic substances from aqueous systems using cationic polymer nanoparticles |
| 03/04/1999 | WO1999010307A1 Process for improving shelf stability of liquid overbased calcium carboxylates, mixed metal stabilizers containing same, and stabilizing halogen-containing polymers therewith |
| 03/04/1999 | CA2300885A1 Method for isolating anionic organic substances from aqueous systems using cationic polymer nanoparticles |
| 03/03/1999 | EP0899256A2 Method for production of organic fluorine compound |
| 03/03/1999 | EP0898554A1 Process for the manufacture of surfactants containing branch chain alkyl groups |
| 03/03/1999 | CN1209801A Process for producing terephthalic acid |
| 03/03/1999 | CN1209800A Process for producing terephthalic acid |
| 03/03/1999 | CN1209799A Process for producing terephthalic acid |
| 03/03/1999 | CN1209429A Process for preparing super-high basicity-value calcium alkyl salicylate |
| 03/02/1999 | US5877381 Oxidizing olefins, aldehydes, alcohols and hydrocarbons, ammoxidation, dehydrogenation and hydrogenation |
| 03/02/1999 | US5877348 Reacting methanol with carbon monoxide |
| 03/02/1999 | US5877347 Iridium catalyzed carbonylation process for the production of acetic acid |
| 03/02/1999 | US5877346 Process for the production of terephthalic acid |
| 03/02/1999 | US5877345 Process for producing butyl acrylate |
| 03/02/1999 | US5877344 Synergistic mixture |
| 03/02/1999 | US5877341 Methods and devices for controlling the reaction rate of a hydrocarbon to an intermediate oxidation product by pressure drop adjustments |
| 03/02/1999 | US5877331 Prevention of catalyst attrition and tar formation in manufacture of maleic anhydride |
| 03/02/1999 | US5876467 Modified alpha-olefin polymers |
| 02/25/1999 | WO1999008990A1 Improved process for separating pure terephthalic acid |
| 02/25/1999 | WO1999008989A1 Processes for preparing hydrocinnamic acid |
| 02/25/1999 | WO1999008988A1 Malonic acid and esters thereof |
| 02/25/1999 | WO1999008788A1 Method for producing multi-metal oxide masses containing mo, v and cu |
| 02/25/1999 | DE19827087A1 (Meth)acrylic acid recovery by distillation in presence of aldehyde-binding reagent |
| 02/25/1999 | DE19736366A1 Isolating anionic substances e.g. protein, nucleic acids, from aqueous systems |
| 02/25/1999 | DE19736105A1 Multi-metal oxide catalyst for gas-phase oxidation of acrolein |
| 02/25/1999 | DE19629042C2 Verfahren zur Gewinnung von Terephthalsäure und Ethylenglykol, insbesondere aus Polyethylenterephthalat-Abfällen und Vorrichtung zur Durchführung des Verfahrens A process for recovery of terephthalic acid and ethylene glycol, in particular of polyethylene terephthalate waste, and apparatus for carrying out the method |
| 02/25/1999 | CA2301704A1 Method for producing multi-metal oxide masses containing mo, v and cu |
| 02/24/1999 | EP0897906A2 Process for producing a polyoxyalkylenecarboxylic acid |