An Improved Compound for Treating Vines and other Plants for the Prevention and Destruction of Phylloxera, Mildew, and the like, and a Method of Producing the same.
Year: 1890

page_text: Date of Application, 12th Feb., 1890
Complete Specification Left, 11th Nov., 1890-Accepted, 13th Dec., 1890
PROVISIONAL SPECIFICATION.
An Improved Compound for Treating Vines and other Plants for the
Prevention and Destruction of Phylloxera, Mildew, and the like,
and a Method of Producing the same.
We, JAMES PIPE, Chemical Manufacturer and HENRY DUNCAN ANDROSS, Cashier,
both residing in Irvine, Ayrshire, N.B. do hereby declare the nature of this invention
to be as follows:-
This invention relates to a cupreous compound for treating vines and other plants
for the destruction or prevention of phylloxera, mildew and the like and it consists
in precipitating copper by direct treatment from solutions with lime or milk of lime
to form a compound without the necessity of first crystallizing the sulphate of copper
and subsequently treating the same with milk of lime which improved manufacture
on addition of water makes a solution the application of which to the plant effects the
same object as the application of a solution of sulphate of copper as heretofore
practised.
Under the invention the solution of copper occurring in the ordinary wet process
for the extraction of copper from burned ores and generally known as the Henderson
process and which solutions contain a proportion of sulphate of copper are treated in
suitable tanks or other vessels with lime or milk of lime in excess. The resulting
precipitate which contains the same ingredients as are obtained by treating bluestone
or crystals of sulphate of copper with lime in the usual way may be washed and dried
or freed from moisture by an ordinary filter press or other well known method of
drying or the obtained precipitate may be at once diluted with water to the con-
sistency requisite for the purposes of the grower or other user.
Dated this Eleventh day of February 1890.
CRUIKSHANK & FAIRWEATHER,
62, Saint Vincent Street, Glasgow, Agents.
COMPLETE SPECIFICATION.
An Improved Compound for Treating Vines and other Plants for the
Prevention and Destruction of Phylloxera, Mildew, and the like,
and a Method of Producing the same.
We, JAMES PIPE, Chemical Manufacturer, and HENRY DUNCAN ANDROSS, Cashier,
both residing in Irvine, Ayrshire, N.B. 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 to a cupreous compound for treating vines and other plants
for the destruction or prevention of phylloxera, mildew, and the like and it consists in
a method of precipitating copper from solutions by direct treatment with lime or
milk of lime so as to form a compound without the necessity of first crystallizing the
sulphate of copper and subsequently treating the same with milk of lime which
improved manufacture on addition of water makes a solution the application of which
to the plant effects the same object as the application of a solution of sulphate of
copper as heretofore practised.
Under the invention the solutions of copper occurring in the ordinary wet process
for the extraction of copper from burned ores, and which solutions usually contain
sulphate of soda in excess of the sulphate of copper in solution, are treated in suitable
tanks or other vessels with lime or milk of lime in excess the invention being based
on the following reaction-Cu Cl₂ + Ca (HO)2 Cu (HO)2 + Ca Cl₂ +
Na, SO, 2 Na Cl + Ca SO.. The resulting precipitate which contains the same
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page_text: ingredients as are obtained by treating blue stone or crystals of sulphate of copper
with lime in the usual way may be washed and dried or freed from moisture by an
ordinary filter press or other well known method of drying or the obtained precipitate
may be at once diluted with water to the consistency requisite for the purposes of the
grower or other user.
:
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
The herein before described process of obtaining cupreous compound for the purposes
set forth and consisting in treating cupreous solution with lime or milk of lime in
excess washing the precipitate and then drying or diluting it with water to the con-
sistency required.
Dated this Tenth day of November 1800.
CRUIKSHANK & FAIRWEATHER,
62, Saint Vincent Street, Glasgow, Agents.