Document om4OZBZgryMvkKgKqMQ13nB0D

appen d ix h i CHjf} A, A. Bri^soiam. ~ Kstv&rlc R. A, Baseman - " 0. C. Ballard - teuvlers . F. Wood - Newport J. W. Minriieh - " Technical File H. H. GYQRGY NEWPORT Newport, Delaware March 29, 1962 ' t DRYING TESTS GAMMA Q.NINACRIDONE STRQNG-3C0TT {t,rORSULIZSRrt The Strong*<Setb "TurbuXiser11 Is not. satisfactory In its current state- of development for drying rude quln&e^dcn pigments. In recent tests in Mnns&poila, It ms ultimately possible to reduce pigment moisture content within specification in two passes trough the machine ,, but the oovapl&si nature of a tacked system moires the unit unattractive from both an operating and an economic standpoint.. The attached .report from Strong^Scott describes in detail the problems aoouatered* On the basl^ of these tests, there is no hope of providing adequate drying in a single unit. The ts&Hs&eg unit required introduces aatt:tct;to operatic eorapleadLties, such as an intermediate collection uysf m betesr. dual eontrois and th like. ..In .no ease 4L ? tha tests provide i.nV-nation about th susb&Izied reliability oi* th... inalb, and X have serious reser-vatlons la this area based on the machine's erratic behavior pattern when processing wet cake. The poise*? reqnte\arit surged even nodes? the most favorable conditlotia clue io cyclic bulM-up and discharge of caked material from the chamber mil. This could toe quite trouble** some in a sustained run. Th wTurbuliser!I has potential use la pigment drying appli* cations, but not in its present form. Siirther development work is reouired to adapt it for' preecoak handling. I, therefor, recommend that -we eliminate the "Turbiiliser" from consideration for Newport* quinacr'idone drying application AMA/tmJ attach. A. M. &JS&SBR mmzc&h SECTION N39937