Improved Means for Treating Sodium Chloride for the Production of Bleach and other Products.
Year: 1895

page_text: Date of Application, 24th July, 1895
Complete Specification Left, 24th Apr., 1896-Accepted 24th July, 1896
PROVISIONAL SPECIFICATION.
Improved Means for Treating Sodium Chloride for the Production
of Bleach and other Products.
I LUKE BLACKWELL of 9 Sanford Terrace, Stoke Newington Common, County
of Middlesex Manufacturing Chemist do hereby declare the nature of this
invention to be as follows:-
This invention relates principally to the employment of eupion in the preparation
or manufacture of a bleaching agent and the recovery and manufacture of bye
products therefrom. Eupion is a liquid resultant from the distillation of animal
tar, horn, or bones. Discovered by Reichenbach.
For the purpose of my invention I bring eupion in contact with common salt
when in a dry condition; with the solution thus formed I then remove the chlorine
from the eupion by heat; this I pass over slaked lime for a bleach.
The eupion is now free to be reused. The sodium remaining is afterwards
treated for any useful purpose.
Eupion dissolves chlorine readily at the ordinary temperature of the atmosphere
and still more easily bromine. When the solution is heated these bodies separate
without any alteration. Iodine dissolves in it cold and still more readily hot and
crystallises in part as the solution cools. Phosphorus, sulphur and selenium are
not dissolved while it is cold but readily when that liquid is heated. When the
solution cools the whole of the sulphur and phosphorus and the greater part of
the selenium precipitates.
It unites directly with haloid elements "haloid" (resembling salt) said of
certain binary compounds consisting of a metal united to a negative element or
radical and now chiefly applied to chlorides, bromides, iodides, and sometimes also
to the fluorides and cyanides.
"Halogen" an electro negative element or radical which by combination with a
metal forms a haloid salt.
Concentrated nitric acid, ditto sulphuric, muriatic, acetic, oxalic, tartaric, lucinic
and citric acids have no action on it, neither is it acted upon by potassium, hydrate
of potash, ditto of lime nor by solutions of potash, lime barytes, strontion or
ammonia nor by the alkaline carbonates the red oxide of lead, ditto of mercury,
the binoxide of manganese, the black oxide of copper or the bichromate of
potash.
It is quite insoluble in water.
Absolute alcohol dissolves it in all proportions.
The invention therefore consists in the employment of eupion as the agent for
acting on the chloride of sodium for the separation of the bodies used and also the
separation of the chlorine which can be recovered for reuse as desired.
H. GARDNER,
Patent Agent, 166 Fleet Street, London,
Agent for the said L. Blackwell. į

page_text: Improved Means for Treating Sodium Chloride for the Production
of Bleach and other Products.
I LUKE BLACKWELL of 9 Sanford Terrace, Stoke Newington Common, County
of Middlesex, Manufacturing Chemist, do hereby declare the nature of this inven-
tion and in what manner the same is to be performed to be particularly described
and ascertained in and by the following statement :-
This invention relates principally to the employment of eupion in the preparation
or manufacture of a bleaching agent and the recovery and manufacture of bye
products therefrom. Eupion is a liquid resultant from the distillation of animal
tar, horn or bones. Discovered by Reichenbach.
For the purpose of my invention I bring eupion in contact with common salt
when in a dry condition; eupion absorbing about double its own volume of chlorine
abstracted from common salt.
these I mix in a vessel, and a solution of eupion and chlorine is formed by the
absorption of the latter by the former. This solution is then poured off, leaving
the sodium remaining in the vessel, and I remove the chlorine in the solution from
the eupion by heat, the chlorine being passed over slaked lime if it is desired to
form a bleach, or it is utilized in any of the well known ways for bleaching or
other purposes.
The eupion is now free to be re-used.
Instead of pouring off the solution from the vessel, I may apply carbonic acid
gas to the solution of eupion and chlorine and the sodium when together in the
same vessel, the carbonic acid gas generating sufficient heat to liberate the chlorine
from the eupion, the sodium combining with the carbonic acid and forming sodium
carbonate.
The sodium remaining, which is either in the form of sodium or as sodium
carbonate if carbonic acid gas be used, is afterwards treated for any useful
purpose.
Eupion dissolves chlorine readily at the ordinary temperature of the atmosphere
and still more easily bromine.
When the solution is heated these bodies separate without any alteration.
Iodine dissolves in it cold and still more readily hot and crystallises in part as the
solution cools. Phosphorus, sulphur and selenium are not dissolved while it is
cold but readily when that liquid is heated. When the solution cools, the whole of
the sulphur and phosphorus and the greater part of the selenium precipitates.
It unites directly with haloid elements "haloid " (resembling salt) said of certain
binary compounds consisting of a metal united to a negative element or radical
and now chiefly applied to chlorides, bromides, iodides, and sometimes also to the
fluorides and cyanides.
"Halogen" an electro negative element or radical which by combination with a
metal forms a haloid salt.
Concentrated nitric acid, ditto, sulphuric muriatic, acetic, oxalic, tartaric,
succinic, and citric acids have no action on it, neither is it acted upon by potassium,
hydrate of potash, ditto of lime nor by solutions of potash, lime, barytes, strontia
or ammonia nor by the alkaline carbonates and red oxide of lead, ditto of mercury,

page_text: the binoxide of manganese, the black oxide of copper, or the bichromate of
potash.
It is quite insoluble in water.
Absolute alcohol dissolves it in all proportions.
The invention therefore consists in the employment of eupion as the agent for
acting on the chloride of sodium for the separation of the bodies used and also the
separation of the chlorine which can be recovered for reuse as desired.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
1. The herein before described means for treating sodium chloride for the produc-
tion of bleach and other products.
2. The employment of eupion in the preparation or manufacture of a bleaching
agent and the recovery and manufacture of bye products therefrom as described.
Dated this 24th day of April 1896.
.
H. GARDNER,
Patent Agent, 166 Fleet Street, London,
.
· Agent for the said L. Blackwell.
H. GARDNER,
· Patent Agent, 166 Fleet Street, London,
· Agent for the said L. Blackwell.