Improvements in the Treatment and Purification of the Waste Liquors of Spirit Distilleries and in the Manufacture of Useful Products therefrom.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in the Treatment and Purification of the Waste Liquors
of Spirit Distilleries and in the Manufacture of Useful Products
therefrom.
We, JOHN JAMES KNIGHT, of 13, Grafton Street, West Gorton, Manchester,
in the County of Lancaster, Technical Chemist, and JOSEPH SAMPSON, of
1, Princess Street, in the said City of Manchester, Gentleman, a joint applicant,
do hereby declare the nature of this invention to be as follows:
Our invention relates to improvements in the treatment of waste liquors of
burnt ale"
spirit distilleries particularly one which is known in the trade, as
in order to obtain useful products therefrom such as cattle and poultry food or a
highly nitrogenous manure.
Burnt ale" contains a large amount of sugar, albumen, and phosphates of
lime and magnesia, which are in an assimilable condition and it is the object
of our invention to utilise these ingredients.
We will now describe the manner in which our process may be performed.
We take the "burnt ale" and run it continuously into the first of a series of
two or more evaporating pans which may be heated by fire or by means of steam
through pipes placed in the pan. The liquor as it concentrates overflows into
the second pan and from this into the third pan where it becomes finally con-
centrated to a syrupy consistence.
We then treat this syrup by either of the following methods.
(a) For foods we mix the syrup in equal quantities with dessicated brewer's
grains--or any cattle meal-which absorbs the syrup and the product is a highly
nutritious cattle food containing albuminous matters and phosphates of lime and
magnesia in an assimilable condition.
(b) For manure we mix the syrup with any dry absorbing material such as
bone meal, keisulghur or gypsum in sufficient quantity to produce a valuable
nitrogenous and phosphatic manure.
T
1000
JOHN JAMES KNIGHT,
JOSEPH
SAMPSON.
Improvements in the Treatment and Purification of the Waste Liquors
of Spirit Distilleries and in the Manufacture of Useful Products
therefrom.
We, JOHN JAMES KNIGHT, of 13, Grafton Street, West Gorton, Manchester,
in the County of Lancaster, Technical Chemist, and JOSEPH SAMPSON, of

page_text: 1, Princess Street, Manchester, in the said County, Gentleman, a joint applicant,
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:
Our invention relates to improvements in the treatment of waste liquors of
spirit distilleries particularly a spent wash which is known in the trade as
"burnt ale" in order to obtain useful products therefrom such as a cattle and
poultry food and a highly nitrogenous and phosphatic manure.
(i
Burnt ale" contains a large amount of sugar albumen and phosphates of
lime and magnesia, which are in an assimilable condition and it is the object
of our invention to utilise these ingredients.
We will now describe the manner in which our improved process may be per-
formed, the operation for which is as follows:-
-
We take the "burnt ale" and neutralise any acidity by the addition of an
alkali or alkaline carbonate, after which it is passed through a filter to separate
any suspended matter we then treat the filtered liquor by either of the following
methods (preferably that marked A).
(A) We pump the filtered liquor into an ordinary steam-boiler which is heated
by fire and evaporate it (keeping the liquor at a constant level by a feed pump)
until it has attained a specific gravity of 15 to 20 degrees Twaddell, or whatever
strength is desired according to circumstances. When the liquor has reached the
required density a portion is blown out through a stopcock, by means of the
pressure of steam in the boiler, into an evaporating pan or tank which is about
three parts filled and then heated by high pressure steam from the boiler afore-
said through a series of steam-pipes placed in the pan. As the evaporation
proceeds fresh partly concentrated liquor is blown at intervals from the boiler
into the evaporator, until the whole, when the evaporator is full or nearly so,
has attained a syrupy consistence when it is run off into another tank to be
further treated.
(B) Or the whole process may be carried on in the evaporator itself, heated by
means of raw or exhaust steam.
(C) Or, the operation may be carried on in a series of two or more ordinary
open evaporating pans, heated by fire the liquor, as it gets concentrated running
continuously from the first pan into the second one, and so on, until the product
in the last pan is concentrated to a syrupy consistence. We then mix the said
syrupy liquid with the suspended matter left on the filter and treat the mixture
by either of the following methods:-
Firstly for cattle and poultry food. We add to the syrupy mixture from an
equal to two or three times its weight of desiccated brewers or distillers grains
the quantity varying according to the dryness of the grains, or the whole quan-
tity of desiccated grains produced at any distillery may be mixed with the whole
of the syrupy mixture produced at the distillery. The product is a highly
nutritious food containing sugar, albuminoids and phosphates of lime and
magnesia in a very assimilable condition.
Secondly. For manure. We add to the syrupy mixture any, dry absorbing
material such as desiccated grains, bone meal, kiesulghur or gypsum in sufficient
quantity to produce a powdery and valuable nitrogenous and phosphatic manure.
If thought necessary it may be mixed with superphosphate of lime for root crops.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is:-
.
Firstly. A useful and valuable cattle and poultry food made from the waste
liquors of spirit distilleries with an admixture of brewers or distillers desiccated
grains as herein before set forth and described.
Secondly. Or the production of a highly nitrogenous and phosphatic manure

page_text: made by the admixture of the syrupy mixture derived from the before mentioned
waste liquors with any dry absorbing material such as desiccated grains, bone
meal, kiesulghur, gypsum, with or without the addition of super-phosphate of
lime as herein before set forth and described.
Dated this 18th day of November 1899.
JOHN JAMES KNIGHT,
JOSEPH SAMPSON.