... And so does this single column for multi-component mixtures

Article Abstract:

Sumitomo Heavy Industries Co. of Tokyo, Japan, is now marketing a new continuous distillation process that isolates each of three-component mixtures in a single tower. The process, which was co-developed with Kyowa Yuka Co. of Tokyo, Japan, has been tested to be with commercial value in Kyowa Yuka's 30,000-mt/yr ethyl acetate plant. Sumitomo claims the new process generates energy cost reduction by about 30% and construction costs and installation space also by about 30%. The distillation process is also claimed to have produced a 99.999% form of ethyl acetate during the testing.

Comment:

Is now marketing a new continuous distillation process that isolates each of three-component mixtures in a single tower

Ship Building and Repairing, Shipbuilding & Repair, Sumitomo Heavy Industries Ltd.

Boron waste recovered

Article Abstract:

Nippon Rensui Co will market in the summer of 2000 a technology that reduces the boron content of industrial wastewater to minus 1.0 ppm. The process consists of filtering the wastewater through a tower where over 99% of contaminants are adsorbed by styrene ion-exchange resin with a glucosamine functional group. The acids and salts are desorbed by acidic water, re-desorbed to a higher concentration by an anion-exchange resin. The contaminants are washed off and recovered by evaporation for re-use at 99.9% purity.

Other Commercial and Service Industry Machinery Manufacturing, Water & Waste Treatment Equip

Destroy mixed contaminants in one step instead of three

Article Abstract:

Osaka Gas Co. of Osaka, Japan, has cultivated a new catalytic wet oxidation (CWO) process designed to decompose organic and cyano compounds in industrial wastewater. Both organic and cyano composed are decomposed into CO2, H2O and N2, using a platinum catalyst added in a mixture of zirconia and titania. The one-step CWO process, which does not produce NOx byproducts since the process uses high temperatures, could reduce treatment cost by about 30% as compared to the existing three-step conventional treatments.

Comment:

Cultivates a new catalytic wet oxidation process designed to eliminate organic and cyano compounds in industrial wastewate

Gas Utilities, Natural Gas Distribution, Osaka Gas Company Ltd.