Catalyst regeneration process

Details Catalyst regeneration process Catalyst regeneration process

1991-05-03

1998-01-20

Cintins, Marianne M.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

C07C 5114

Patent

active

057103267

ABSTRACT:
A process for controlling the regeneration of boron trifluoride catalyst complexes in the production of carboxylic acids and other products using boron trifluoride hydrates as a catalyst. Catalyst strength is determined by measuring the electrical conductivity of the catalyst recovered from hydrolysis. If the conductivity is greater than a predetermined value, the hydrolysis water rate is reduced and if the conductivity is leas than a predetermined value, the hydrolysis water rate is increased. Conductivity is determined by a toroidal conductivity sensor and a control valve responsive to operation of the conductivity sensor serves to increase or decrease the flow rate accordingly.

REFERENCES:
patent: 3349107 (1967-10-01), Pawlenko
patent: 3527779 (1970-09-01), Paulis et al.
patent: 4518798 (1985-05-01), Kramer et al.
USSR reference SU1487922, Jun. 23, 1989, Babaev, A.I.; Ismailov, T.I.; Levin, V.L.
W. J. Ellis and C. Roming, Jr., Hydrocarbon Processing, "Make Low-Cost Carboxylic Acids From Olefins, Carbon Monoxide and Water", Jun. 1965, vol. 44, No. 6, pp. 139-141.

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