@article{oai:ir.kagoshima-u.ac.jp:00008042,
 author = {太田, 冬雄},
 journal = {鹿児島水産専門学校研究報告},
 month = {2016-10-28},
 note = {For the purpose of manufacturing bromine from marine algae, some series
of experiments were carried out.
(1) It was proved that the aeration method with sulphuric acid and potassium iodate was applicable to estimate the amount of bromine in the presence
of much chlorides, and that it was possible to use the above method to the
determination of bromine in marine algae.
(2) Some 40 species of marine algae, collected at the coast of Hokkaido
and karafuto, were examined for bromine contents by above method, and it
was found out that some species of Rhodomelaceae (Rhodophyceae), contained
for greater amount of bromine than other algae, and that the forecast production,
calculated roughly by the investigation of the distribution and growing
state of these, would enable us to utilize these as an industrial material., (3) Some factors, which had to be performed in manufacturing bromine
from that algae by kelp method, were researched, and the results obtained wereas follows:
a) The parallel procedure in manufacturing iodine, might be applied to that
of burning algae and of extracting bromine from kelp.
b) Potassium salts are to be produced by the concentration of extracts, but
it was hardly possible to make the yield of potassium salts sufficient as long
as the recovery of bromine was the first purpose.
c) The recovery of bromine in the case of the concentrated extracts was
more profitable on the yield, adding weight of chemicals etc., than the dilute
solution.
d) Potassium chlorate was more suitable as the oxidizer in distilling bromine
from mother solution, than managanese dioxde, sodium chromate etc., (4) The often-repeated test of manufacturing bromine from the algae of
Rhodomelaceae, enabled us to ascertain that about 90~95% of bromine in the
algae was to be recovered by simple apparatus and procedure with some
quantities of potassium salt.
(5) It was found out that the rest-solution of iodine manufacture contained
considerable amount of bromine, and that it was more simple and profitable
than manufacturing directly bromine from the rest solution only, to apply it
to the process of extracting bromine from kelp of Rhodomelaceae.
(6) Some considerations were given from a industrial point of view, on
manufacturing bromine from the algae of Rhodomelaceae, and from the rest-solution of iodine
manufacture.},
 pages = {99--123},
 title = {海藻類を原料とする臭素の製造に関する研究},
 volume = {1},
 year = {}
}