MANUFACTURE OF ANTIMONIAL COMPOUNDS SUITABLE AS MORDANTS IN DYEING AND PRINTING
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
I, JASPER WETTER, Engineer, of 67, Strand, in the City of Westminster, do
hereby declaro the nature of said invention for A MANUFACTURE OF ANTIMONIAL
COMPOUNDS SUITABLE AS MORDANTS IN DYEING AND PRINTING, a communication
to me from abroad by M. B. Vogel, of Leipzig, in the kingdom of Saxony, to be as
follows:-
If alkalies, carbonates of the alkalies, or alkaline earths, or other bodies having
an alkaline reaction, are allowed to act on sugar, gum, dextrin, or other "carbo-
hydrates," the products thus obtained give with antimony compounds which are
soluble in water without decomposition. These antimonial compounds are
applicable as mordants in dyeing and printing fibrous materials, and are obtained
in the following way:
A solution of grape sugar, or other substance belonging to the group mentioned
above, or of a mixture of two or more such substances, is treated with a strongly
alkaline substance, at a pressure, temperature, and concentration depending on
the facility with which the substanco under treatment is attacked by alkalies.
Equivalent results are obtained by uniting with the above operation the oxidizing
action of the atmospheric air, with or without the aid of metallic oxides adapted to
transmit the oxygen.
In order to combine with antimony the substances contained in the solutions
obtained as described, the said solutions are acidulated with a strong acid, and
treated with antimony, for instance by digesting them with antimonious oxide, or
adding antimonial compounds adapted to introduce into the liquid, simultaneously
with the necessary antimony, a certain quantity of strong acid; such compounds
are for instance the trichloride and the sulphate. In any case, however, that degree
of acidity should be imparted to the liquid (as found by experiments) which causes
the absorption of a maximum of antimony.

page_text: The salts, formed from the acid introduced into the liquid and the base contained
in the same, are removed by filtration or crystallisation. In case an alkaline earth
or other alkaline body undesirable in the finished product, has been used for the
decomposition of the sugar or other carbo-hydrate the remainder of this body is
removed from the liquid by known methods and as far as necessary replaced by an
alkali.
The antimonial liquids resulting from these operations, may be directly used in
dyeing and printing, or they may be concentrated or converted into a dry state by
cautious evaporation.

page_text: CONFLEIE
SPECIFICATION.
I, JASPER WETTER, Engineer, of 67, Strand, Westminster, do hereby declare
the nature of my invention for A MANUFACTURE OF ANTIMONIAL COMPOUNDS
SUITABLE AS MORDANTS IN DYEING AND PRINTING, a communication to me from
abroad by M. B. Vogel, of Leipzig, Saxony, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:-
If alkalies, carbonates of the alkalies, or alkalino earths, or other bodies having
an alkaline reaction, are allowed to act on sugar, gum, dextrin, or other "carbo-
hydrates," the products thus obtained give with antimony compounds which are
soluble in water without decomposition.
These antimonial compounds are applicable as mordants in dyeing and printing
fibrous materials, and may be advantageously obtained in the following way:
1, a solution of grape sugar, or other substance belonging to the group mentioned
above, or of a mixture of two or more such substances, is treated with a strongly
alkaline substance (for instance an alkali, a carbonato of the same, or an alkalino
earth) until the decomposition or reaction indicated abovo has been completed.
The temperature and strength of the solution depends on the facility with which
the substance used as a raw material is attacked by the alkaline agent, the tem-
peraturo and strength being increased in proportion to the resistance offered to the
chemical reaction or conversion, which may, if necessary, be promoted by the
application of pressure.
The bodies or compounds formed during this operation neutralize a portion of
the alkalino base employed, and the conversion may be considered complete, if no
further diminution of the free base contained in the mixture takes place.
Results equivalent for the present purpose are obtained by uniting with the
above operation the oxidizing action of the atmospheric air, with or without the
aid of metallic oxides adapted to transmit the oxygen.
In order to combine with antimony the substances contained in the solutions
obtained as described, the said solutions are acidulated with a strong acid, and
treated with antimony, for instance by digesting them with antimonious oxide, or
adding antimonial compounds adapted to introduce into the liquid simultaneously
with the necessary antimony a certain quantity of strong acid; such compounds
are for instance the trichloride and the sulphate. In any case, however, that
degree of acidity should be imparted to the liquid (to be found by previous
experiments) which causes the absorption of a maximum of antimony.
The salts, formed from the acid introduced into the liquid and from the base
contained in the same, are removed by filtration or crystallization.
In case an alkaline earth, or other alkaline body undesirable in the finished
product, has been used for the decomposition of the sugar or other carbo-hydrate,
the remainder of this body is removed from the liquid by known methods and as
far as necessary replaced by an alkali,

page_text: The antimonial liquids, resulting from these operations, may be directly used in
dyeing and printing textile materials or fabrics, or they may be concentrated by
cautious evaporation, or converted into a dry state.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
1. The manufacture of antimonial compounds by combining with antimony and
acid the products resulting from the reaction of alkaline bodies on carbo-hydrates,
substantially as and for the purpose described.
2. The manufacture of antimonial compounds by introducing antimony and acid
into the products resulting from the reaction of alkaline bodies on carbo-hydrates,
and the simultaneous oxidation by atmospheric air, with or without the aid of
metallic oxides adapted to transmit oxygen, substantially as and for the purpose
described.