Improvements in the Treatment of Ground Slags intended for Use as Fertilisers.
Year: 1895

page_text: Date of Application, 19th June, 1895
Complete Specification Left, 1st Aug., 1895-Accepted, 21st Sept., 1895
PROVISIONAL SPECIFICATION.
Improvements in the Treatment of Ground Slags intended for Use
as Fertilisers.
CHARLES HENRY LANGDALE of Mill House Morpeth, Merchant, and ARTHUR
WILLIAM LANGDALE of No. 2. Claremont Villas Forest Hall, Newcastle-on-Tyne,
Merchant. We do hereby declare the nature of this invention to be as follows:-
The addition of brine containing solutions of the salts of sodium and or the salts
of potassium to ground phosphatic basic slag or any variety of ground slag intended
for use as fertilisers or manures on the land and thus putting them into a condition
to handle and sow without objectionable dust and to cause the added moisture to be
retained more evenly than when water alone is added, and also to cause a more
intimate mixture than can be done by adding salts not in solution.
Dated this 18th day of June 1895.
Improvements in the Treatment o1 Ground Slags intended for
as Fertilisers...
050
CHARLES HENRY LANGDALE of Mill House Morpeth, Merchant, and ARTHUR
WILLIAM LANGDALE of No. 2 Claremont Villas, Forest Hall, Newcastle-on-Tyne,
Merchant. We 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 addition of brine containing solutions of the salts of sodium and or the salts
of potassium to ground phosphatic basic slag, or any variety of ground slag intended
for use as fertilisers, or manures on the land, and thus putting them into a condition
to handle and sow without objectionable dust, and to cause the added moisture to be
retained more evenly than when water alone is added, and also to cause a more
intimate mixture than can be done by adding salts not in solution.
When brine is used such as is pumped from the natural salt deposits, it can be
used as it then is, or if more of the salts of sodium, and or the salts of potassium are
required in the brine the desired quantity can be dissolved in the brine before
mixing with the ground slag, or a brine can be made by taking a known quantity of
water, and dissolving in it the quantity, and kind of salt required, such for example
as about two parts by weight of common salt (which is principally chloride of sodium)
dissolved in about six parts by weight of water, and then the eight parts by
weight of brine so made to be added to about ninety-two parts by weight of
ground slag.
The proportions of natural brine, or artificial solution can be varied to suit local
requirements, to be from about two per cent. of such a solution as before described,
or of a natural brine up to about twenty per cent. instead of eight per cent. in the

page_text: mixture as before named, but the mixture made as before described of eight per
cent. of brine, and ninety-two per cent. of ground slag will carry the invention into
effect.
The nature of the salts employed are such as common salt; (which is principally
chloride of sodium), nitrate of sodium, carbonate of potassium, nitrate of potassium,
or chloride of potassium, or any substances containing the salts of sodium and
or potassium from which the brine could be made, and which are found to be most
advantageous to use in the districts in which this process may be worked.
The brine and ground slag can be mixed in proportions as required by weighing
or measuring off the quantities desired, and mixing by hand with a shovel and
adding the brine to the ground slag by means of a watering vessel, or the mixing may
be done by means of a horizontal or vertical mixing machine having a revolving shaft
with arms attached for stirrers, or by other suitable machines, and the brine can be
weighed, or measured off in cisterns, and the ground slag can be weighed, or
measured off in quantities as desired and so that the two materials can be fed under
control as to quantity by means of pipes, belts and buckets, screw worms; or other
suitable means into the mixing machine which can be driven by a suitable engine to
give the power required.
Having now particularly described and ascertained the nature of our säid
invention and in what manner the same is to be performed; we declare that what
we claim is
The addition of brine containing solutions of the salts of sodium, and or the salts
of potassium to ground phosphatic basic slag, or any variety of ground slag
intended for use as fertilisers or manures on the land, and thus putting them into a
condition to handle and sow without objectionable dust, and to cause the added
moisture to be retained more evenly than when water alone is added, and also to
cause a thore intimate mixture than can be done by adding salts not in solution:
Dated this Thirty-first day of July 1895!