| Patent | Date |
|---|
Process for the preparation of acetic acid and acetic anhydride
Grant 5,380,929 - Erpenbach , et al. January 10, 1 | 1995-01-10 |
Process for separating iodine and its compounds from the products obtained on subjecting dimethylether, methyl acetate or methanol to carbonylation
Grant 5,169,982 - Heinz , et al. December 8, 1 | 1992-12-08 |
Process for separating iodine and its compounds from the carbonylation products obtained by subjecting dimethylether, methyl acetate or methanol to a carbonylation reaction
Grant 4,664,753 - Erpenbach , et al. May 12, 1 | 1987-05-12 |
Process for purifying and recovering contaminated catalyst solution obtained in the carbonylation of methyl acetate and/or dimethylether
Grant 4,629,711 - Erpenbach , et al. December 16, 1 | 1986-12-16 |
Process for the continuous production of 2-carboxyethyl-alkyl-phosphinic acid dialkylesters
Grant 4,560,518 - Gehrmann , et al. December 24, 1 | 1985-12-24 |
Process for recovering noble metals belonging to group VIII of the Periodic System of the elements from a contaminated catalyst solution originating from the carbonylation of methyl acetate and/or dimethylether
Grant 4,557,760 - Erpenbach , et al. December 10, 1 | 1985-12-10 |
Process for purifying and recovering contaminated catalyst solution obtained in the carbonylation of methyl acetate and/or dimethylether
Grant 4,556,644 - Erpenbach , et al. December 3, 1 | 1985-12-03 |
Process for separating acetone from carbonylation mixtures
Grant 4,444,624 - Erpenbach , et al. April 24, 1 | 1984-04-24 |
Process for purifying and recovering contaminated catalyst solution obtained in the carbonylation of methyl acetate and/or dimethylether
Grant 4,440,570 - Erpenbach , et al. April 3, 1 | 1984-04-03 |
Production of acetic anhydride
Grant 4,430,273 - Erpenbach , et al. February 7, 1 | 1984-02-07 |
Production of acetic anhydride
Grant 4,333,884 - Kubbeler , et al. June 8, 1 | 1982-06-08 |
Continuous production of alkyl acrylates free from ether
Grant 4,280,010 - Erpenbach , et al. July 21, 1 | 1981-07-21 |
Production of acetic anhydride and acetic acid from acetaldehyde
Grant 4,252,983 - Erpenbach , et al. February 24, 1 | 1981-02-24 |
Production of space abrasion-resistant active carbon carriers or catalysts
Grant 4,206,078 - Ohorodnik , et al. June 3, 1 | 1980-06-03 |
Production of methyldichlorophosphane
Grant 4,101,573 - Gehrmann , et al. July 18, 1 | 1978-07-18 |
Continuous production of 2,5-dioxo-1-oxa-2-phospholanes
Grant 4,062,888 - Ohorodnik , et al. December 13, 1 | 1977-12-13 |
Purification of crude hydrogen chloride
Grant 4,003,723 - Schafer , et al. January 18, 1 | 1977-01-18 |
Recovery of monomeric acrylic acid from residues originating from processed crude acrylic acid
Grant 3,954,854 - Gehrmann , et al. May 4, 1 | 1976-05-04 |
Process for the manufacture of acrylic acid esters
Grant 3,882,167 - Lohmar , et al. May 6, 1 | 1975-05-06 |
Process for inhibiting post reactions in the catalytic oxidation of propylene and/or acrolein to produce acrolein and/or acrylic acid
Grant 3,876,693 - Erpenbach , et al. April 8, 1 | 1975-04-08 |
Process For The Manufacture Of A Dehalogenation Catalyst
Grant 3,864,281 - Ohorodnik , et al. February 4, 1 | 1975-02-04 |
Process For Isolating Acrylic Acid From The Reaction Gases Obtained By The Oxidation Of Propylene Or A Acrolein
Grant 3,717,675 - Sennewald , et al. February 20, 1 | 1973-02-20 |
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