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Recovery of acetic anhydride
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Patent number 4,737,318
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Issue date Apr 12, 1988
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Daicel Chemical Industries, Ltd.
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Masaaki Ichino
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C07 - ORGANIC CHEMISTRY
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Extraction method
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Patent number 4,658,057
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Issue date Apr 14, 1987
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Daicel Chemical Industries, Ltd.
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Kunio Koga
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Method of operating mixer-settler
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Patent number 4,562,288
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Issue date Dec 31, 1985
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Daicel Chemical Industries, Ltd.
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Kunio Koga
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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