Word: hixson
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...demand is far outstripping supply: engineers last week estimated that a ton of chlorine goes into making a tank, two tons in the making of a plane (in its plastics, paint & varnish, degreasing chemicals, rubber, some alloys). The new process, announced by Chemical Engineers Arthur Warren Hixson and Alvan Howard Tenney of Columbia University: sulfur, through burning and catalysis, is changed to sulfur trioxide gas which is then infiltrated through common salt. The resulting compound (sodium chlorosulfinate) is decomposed by heat to produce salt cake (sodium sulfate) and chlorine. Salt cake, of which the U.S. has imported...
...This is the greatest contribution to aluminum metallurgy since the Hall process of 1886-if it is cheap as the inventor says." So commented the Aluminum Co. of America on a new process for extracting alumina from common clay announced last week by Chemical Engineer Arthur W. Hixson of Columbia University...
...Hixson believes his process will not only free the U.S. from dependence on imported ores but will provide alumina cheaper than present methods of extracting it from high-grade bauxite ores. The process takes advantage of the fact that part of the aluminum silicate of which clay is largely composed is aluminum oxide. Boiling hydrochloric acid, Hixson found, combines with the oxide to form aluminum chloride dissolved in water (though it does not affect the silica). Impurities such as iron chloride (formed at the same time) are then removed with an ether. The remaining aluminum' chloride solution is then...
...Hixson thinks his process can produce alumina from rich clays and low-grade bauxite for about $31 per ton. Present cost of alumina made from rich bauxite ores is estimated at between...
Alcoa engineers reported that they knew nothing of his discovery except what they had read in the newspapers. Professor Hixson said he had turned his process over to the Government and expected a pilot plant would shortly be erected to substantiate his cost estimates in actual production. It will probably be located near the cheap-power source of the Tennessee Valley. Raw material can be mined in almost anybody's back yard since aluminum, the commonest of all metals, is one of the three principal components of the earth's crust...