Improvements in the Preparation of Mineral Salts for Bathing and Drinking Purposes.
Year: 1891

page_text: Date of Application, 29th Oct., 1891
Complete Specification Left, 29th July, 1892-Accepted, 17th Sept., 1892
PROVISIONAL SPECIFICATION.
Improvements in the Preparation of Mineral Salts for Bathing and
Drinking Purposes.
I CHARLES WILSON VINCENT of Harvist Road, Holloway in the County of
Middlesex, Analytical and Consulting Chemist, do hereby declare the nature of
this invention to be as follows:-
The chief object of this invention is to enable invalids to obtain the benefits
derivable from the use of medicinal mineral waters, without the necessity for visiting
the sources of those waters.
To this end I prepare mixtures of mineral salts, which will be readily soluble in
water, and so proportion the ingredients as to imitate, at pleasure, the various
celebrated sodio, calcareo, magnesio, sulphu:etted, aerated, ferruginous, and other
waters of France (including Savoy), Germany, Bohemia, Austria, &c.
To this end I mix together, in the proper proportions, sulphate of soda, carbonate
of lime, and carbon, adding to or substituting for the carbonate of calcium,
magnesite or magnesium carbonate, or ferrous carbonate, when iron or magnesic
waters are required.
The mixture of sodium sulphate, earth carbonates, and carbon, is then roasted in
a reverberatory, a revolving, or other suitable oxidising furnace, until the sodie
sulphate is wholly, or for the most part (as may alternatively be desired), converted
into sodic carbonate. When the presence of sodium sulphide is desired, the process
is prolonged at a somewhat higher temperature, until some of the sodic carbonate
is decomposed, and oxide and sulphide of sodium are formed.
The fused mixture, when cold, is ground to a powder, and exposed in thin layers,
in a suitable chamber, to carbonic acid gas, until the required proportion of
bi-carbonated salts are produced.
When a bathing water is required, containing free carbonic acid gas, or free
sulphuretted hydrogen, or both, a suitable mixture of salts, made as before
described, is dissolved in water, and a solution of some acid salts, such as the
may likewise
anhydrous bisulphate of soda, is added. Tartaric acid or citric acid
be used. The invention als applies to the manufacture of drinking waters.
When preparing such waters, the materials used are required to be
Glauber's salt is used in place of commercial sulphate of soda, or salt cake.
The carbonate of lime used is the purest obtainable, and well burnt charcoal is used
in place of coal or coke, the coarser and less pure materials being suitable only when
a bathing water is wanted.
pure.
Thus
Jodides, bromides, phosphates, are added to the salts after leaving the carbonating
chamber, when such constituents are required.
It should be remarked that the central point of my process is highly carbonated
sodio, calcareous, or magnesious water, with or without the presence of sulphides or
sulphuretted hydrogen.
Dated this 29th day of October 1891.
NEWTON & SON,
Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in the Preparation of Mineral Salts for Bathing and
Drinking Purposes.
I CHARLES WILSON VINCENT of Harvist Road, Holloway in the County of
Middlesex, Analytical and Consulting Chemist, do hereby declare the nature
of this invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
The chief object of this invention is to enable invalids to obtain the benefits
derivable from the use of medicinal mineral waters, without the necessity for visiting
the sources of those waters.
To this end, I prepare mixtures of mineral salts which will be readily soluble in
water, and so proportion the ingredients as to imitate, at pleasure, the various
celebrated sodio, calcareo, magnesio, sulphuretted, aerated, ferruginous, and other
waters of France (including Savoy) and Germany, Bohemia, Austria etc.
To this end, I mix together, in the proper proportions, sulphate of soda, carbonate
of lime, and carbon, adding to or substituting for the carbonate of calcium,
magnesite, or magnesium carbonate, or ferrous carbonate, when iron or magnesic
waters are required.
The mixture of sodium sulphate, carth carbonates, and carbon, is then roasted in
a reverberatory, a revolving, or other suitable oxidising furnace, until the sodic
sulphate is wholly, or for the most part (as may alternatively be desired), converted
into sodic carbonate. The salts thus produced, when ground to a fine powder, may
be at once used for making medicinal mineral baths.
When the presence of sodium sulphide is desired, the process is prolonged, at a
somewhat higher temperature, until some of the sodic carbonate is decomposed, and
oxide and sulphide of sodium are formed.
Thus, in order to produce sodio sulphated waters, or sodio carbonato sulphated
waters, such as are the celebrated springs of France, Savoy, &c., which contain
large quantities of carbonate, bicarbonate, and sulphate of soda, I use the following
mixture, modifying the quantity of carbon according as I desire to procure more or
less of the sulphate of soda and sulphide of soda, and increasing the quantity of
both carbon and carbonate of calcium, as I desire more of the carbonate and less
caustic soda -
C

page_text: Sulphate of soda
Carbonate of iron
-
Calcium carbonate (limestone)
Carbon
-
53 parts
-
15
"
27
"
10
وو
To produce a sodio sulphuretted water, the quantity of carbon is increased, & a
somewhat higher temperature is used.
Thus:-
Sulphate of soda
Carbonate of calcium
Carbon
53 parts
42
"
20 "'
will, when treated as above, give a mixture of salts containing:
Carbonate of soda
Soda
-
82 per cent.
-
6
"
"
Sodium sulphide
-
-
3
وو
"
Sodium sulphate
-
"
">
-
3
"
"
Iron, magnesia, &c. -
When bicarbonated salts are desired, the powders are exposed on trays, in a
suitable chamber, to the action of carbonic acid gas, until the required proportion
of bicarbonate of soda is obtained.
Any of the above mixtures, after they leave the furnace, may be ground to
powder, and used as the bases of mineral waters for bathing purposes, without
undergoing the process of lixiviation.
They then contain, besides the constituents above named, a large proportion of
sulphide of calcium.
I find that the presence of sulphide of calcium enables me to keep in a dry state,
and in powder, for an indefinite time, the highly deliquescent salts which are among
the active constituents of mineral water baths.
To bicarbonate these salts, any of the above named fused mixtures, when
cold, may be ground to a powder, and exposed in thin layers, in a suitable
chamber, to carbonic acid gas, until the required proportions of bi-carbonated salts
are produced.
When a bathing water is required containing free carbonic acid gas, or free
sulphuretted hydrogen, or both, a suitable mixture of salts, made as before
described, is dissolved in water, and a solution of some acid salt, such as the
anhydrous bisulphate of soda, is added. Tartaric acid or citric acid may likewise
be used.
The strength of the bath may be varied according to circumstances, by adding
more or less water. A convenient proportion for bathing purposes is one ounce of
the ground mixture of mineral salts to 15 gallons of water.
The invention also applies to the manufacture of drinking waters.
When preparing such waters, the materials used are required to be pure Thus,
Glauber's salt is used in place of commercial sulphate of soda or salt cake. The
carbonate of lime used is the purest obtainable, and well burnt charcoal is used in
place of coal or coke, the coarser and less pure materials being suitable only when
a bathing water is wanted.
Ground iodides, bromides, phosphates, are added to the powdered salts, either
before or after leaving the carbonating chamber, when such constituents are
required.
It should be remarked, that the central point of my process is highly concentrated
carbonated sodio calcareous or magnesious water, with or without the presence of
sulphides or sulphuretted hydrogen,

page_text: 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 preparation of mineral salts for drinking or bathing purposes, in the form
of powders readily soluble in water, in the manner above set forth.
2. The preparation of mineral salts, in the form of non-deliquescent powders
readily soluble in water; in the manner and for the purpose above set forth.
Dated this 29th day of July 1892.
NEWTON & SON,.
Agents for the Applicant.