Show NEW emlu PRODUCING PLANT OPENS ON SAN FRANCISCO BAY california has come come into possession of a new industry on february ath the chipman chemical engineering company of new york started its new arsenic reduction works at martinez on san francisco bay producing refined white arsenic from ores shipped into the plant from various points in california and nevada I 1 the new plant consists of an initial installation comprising a crushing plant mcdougal 7 hearth roaster and arsenic kitchens said to be the largest in the world almost immediately two supplementary roasters asters ro are to be installed the ore is shipped in by rail at present and the cars unloaded directly into storage bins from which it passes to crushers and rolls which reduce it to a small size suitable for the roaster to handle the roaster is oil fired with automatic temperature control and the fumes pass directly into info a dust chamber and thence into the kitchens these latter have been arranged so that they can be cleared during operation thus making it unnecessary to shut down the plant for the purpose of taking off the arsenic the arsenic plant was designed by ralph N chipman president of the company and charles R wraith of the anaconda copper mining company and has been erected under mr Chip mans personal supervision for the present the plan is to keep the plant running on custom ore and later to roast ores to be shipped in from the company companas comp anys 9 s mining properties in other sections 4 the chipman chemical engineering company is known as one of the largest users of arsenic in the world having in 1923 consumed about thirty percent of the world s arsenic output in the manufacture of its plant insecticides weed killer and cattle dip the new plant at martinez is most favorable situated on the southern pacific railroad and has water facilities comprising a dock extending into the bay at which vessels vessel drawing twenty six feet may be unloaded the new plant is is regarded as a most valuable supplement to other sources of arsenic production its first years operation is expected to supply about tons and this capacity will it is understood be doubled in 1925 when the mines recently acquired by the chipman company get into full production through its subsidiary the arsenic products and refining company the chipman company has begun development work and mining at the recently acquired white iron mine at madera colorado and it is expected that the first shipment of ore from this property will be made about march the ore goes direct to the new arsenic plant at martinez the ore from this mine is a high grade nn and it 16 i g believed that the claims a are re ex extensive enough to maintain an adequate ore supply through a long period of years other mining properties are in in process of development the chipman chemical Engi engineering company is is the producer of calcium arsenate paris pari green lead arsenate cattle dip and chemical weed killer it maintains factories at bound brook new jersey houston texas martinez california and is about to establish a new plant for the Mau manufacture facture lau of weed killer at chicago illinois |