INDUSTRIAL
May 1949
AND
ENGINEERING
55 A
CHEMISTRY
CHEMICO Offers The Wilton Continuous Process For
TAR DISTILLATION Pitch recirculation reduces coking o f pipe still . . . l o w e r s maintenance cost
From Tar You Can PROCESS In the Wilton process hot pitch is continu ously circulated at high speed through the distillation column to the pipe still and back. Tar products of the desired characteristics are removed in continuous streams.
ADVANTAGES Fewer shutdowns — Turbulence of the pitch in the pipe still prevents coking even when the entry of crude coal tar is stopped. This reduces shutdowns for cleaning and repairs . . . substantially lowers maintenance costs. Higher yield — Corrosive liquids and light oils are distilled off immediately upon intro duction of crude tar to the hot recirculating pitch. This not only insures a high yield of oil products, but also reduces corrosion of the equipment. Lower fuel costs — Maximum heat exchange occurs between hot finished products and
cold feed. N o re-distillation of oil products is necessary. Various fuels, including pitch from the same unit, or a combination of fuels can be used. Greater flexibility —• Any product can be var ied without affecting the others. Plants can be worked on quarter, half or full load, without detriment to the pipe still. Less space — Installations for modern-size, coke-oven batteries occupy 1/3 to 1/2 l e s s space than comparable batch plants. Automatic controls — Centralized, automatic controls insure constant quality of products as well as lower labor operating costs. Every Chemico-built years of experience struction of heavy Consult Chemico for plant needs.
plant is backed by 35 in the design and con chemical installations. all your heavy chemical
Get These Products 1 . Low-boiling acid-oil fraction with high concentration of phe nol and cresols. 2 . Naphthalene oil fraction con taining practically the whole of the naphthalene in the crude tar. 3. Creosote oil fraction which can be made to comply with various specifications for use as wood preservative or for use as benzol-absorbing o i l . 4 . Higher boiling fractions con taining concentrations of chem icals such as anthracene, phenanthrene, carbazole, etc. 5 . Pitches, hard or soft, to meet fuel, surfacing, coking, water proofing, etc. specifications.
CHEMICAL CONSTRUCTION CORPORATION EMPIRE STATE BUILDING, 350 FIFTH AVENUE, N E W YORK 1, Ν. Υ. EUROPEAN TECHNICAL CYANAMID PRODUCTS, LTD., BRETTENHAM H O U S E ,
REPRESENTATIVE LANCASTER PLACE, L O N D O N W . C . 2,
CABLES: C H E M I C O N S T , N E W YORK
ENGLAND
Chemico Plants are profitable investments
