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Heerlen, NL
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Patent Grant
Process for removal of tar in a phenol preparation process
Patent number
5,364,978
Issue date
Nov 15, 1994
D.S.M. N.V.
Johannes A. Kroon
C07 - ORGANIC CHEMISTRY
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Patent Grant
Process for the preparation and purification of a hydroxylammonium...
Patent number
5,362,398
Issue date
Nov 8, 1994
D.S.M. N.V.
Carolus H. M. Kamphuis
C01 - INORGANIC CHEMISTRY
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