Document 3eybbo96Rew6kQXpn1mOvDNdE

N23229 Iw b tIV ti) Coffeyville >.i>. Vywan Chicago Auxiliaries ^esearoh Moreabar 5, 19$6 Doreolooppwngtantt. atf_Allblbaa.] itb 362 Typo Wo or* enclosing a detailed report on our oxaol&atlon of tho special lot of llthopono. Lot C?03h, which was intended to bo a counter- V* natch for Alballth 362. a Although oo hare disaueoed thla la tho report, we would again Ilka to e^haaise oar fooling that thla type of llthppone cannot bo dup licated by tty aort of cheaLeal treat--nt to fom a surface coating on the partldae without alao including apaelal willing technique* daring aoboeqaaat processing, He further fool that to duplicate thla typo of lithopono, wo snail aonohow hare to eliminate the Haywood Hollar Hill becaaae wo feel that the very high shear and pressure to whloh the pigwont la aubjeoted by thla will tends to break down the type of agglomerate structure necessary to got the optima* In high dry-hiding properties. The same applies, to a leaser extent, to preparing a eountematch for Alballth 13. & doth Gloria and 1 fool that If it la important that we do develop a oountermatch for Alballth 362, that wo should seriously consider getting the Startwan will frow the Bow Jersey Zinc Company*s Depue plant if It is still available. x // ft - --------------- C, H. Adams, Mineral Products Laboratory f. C. Varduinihb 001 SBC, jn, CSD, JSS, bne. 0007-SWP-043680 0007-SWP