>- a:  0  w  J:  I- IJ.  0  ~  100  75  50  25  HYDROGENATION  OF  BENZENE  (1.0  MOLE)  176  MG  NICKEL  (  150  C.,  PH$_{2 }$ =  35-69  ATMOSPHERES)  Ni  COMPLEX  ’\_49%  Ni  ON  KIESELGUHR  o  ____  .._  __  --’-- .......  ___  ...._  ___  _._  ___  ....._  ___  _...__  0  2  3  4  5  TIME  IN  HOURS  6  FIG.1  HYDROGENATION  OF  BENZENE  (1.0  MOLE)  VARIATION  OF  NICKEL  SALT  (150°C.,  PH$_{2}$ S:i  35-70  ATMOSPHERES)  >› a:  0  w  J:  100  1-- 50  IJ.  0  ~  0.3%  2-ETHYLHEXANOATE  0.3o/o  ACETATE  OIi:.-----’------.._  ____  ....._  __  0  50  100  150  TIME  IN  MINUTES  FIG.2  INVENTOR  SEYMOUR  J.  LAPPORTE  S.  J.  LAPPORTE  PREPARATION  OF  COMPLEX  ORGANIC  METALLIC  HYDROGENATION  CATALYSTS  AND  THEIR  USE  Filed  March  14,  1963  3,205,278  .  Sept.  7,  1965 