Improved Apparatus for Rectifying Glycerine.
Year: 1889

page_text: Date of Application, 16th May, 1889-Accepted, 22nd June, 1889
QUAIT LIMIM DEDUITTOAITON.
Improved Apparatus for Rectifying Glycerine.
I ROBERT OSCAR UNGLAUB of Whit Lane Works, Pendleton, near Manchester,
in the County of Lancaster, Chemical Engineer, 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 object of this Invention is to abstract from Glycerine the impurities therein
contained during the process of distillation.
According to this Invention the Glycerine Vapour is made to traverse a Cylinder
(preferably of Copper) fitted with suitable deflectors, the impurities collect on the
deflectors and trickle down to the bottom of the apparatus while the rectified
Glycerine Vapour is drawn off at the top of the Cylinder by means of a pump and
condensed. In the accompanying drawing Figure 1 represents a section of an
apparatus for rectifying Glycerine constructed according to this Invention. Figure 2
is a cross section of the same on line A A (Figure 1) and Figure 3 is a cross section
of the said apparatus on line B. B. (Figure 1). The same letters denote the same
parts in all the Figures. a is a cylinder of copper or other suitable material containing
at its lower end two or more concentric Cylinders bede of any suitable material
whereof and d are fastened air tight to the bottom of the Cylinder a and are
open at the top and the Cylinders and are covered in at the top air tight but
supported on brackets leaving a space between the lower edge of the said
Cylinders and the bottom of the Cylinder a. Above these Cylinders b c d e are baffle
plates ijk and the remainder of the space in the Cylinder a is occupied by
concentric rings of pipes fitted with covers or bonnets m. The apparatus is also
fitted with two rows of pipes the upper ends of which pipes are fitted with covers
or bonnets o and the lower ends thereof dip into traps p. The upper end of the
Cylinder a is provided with a cover having fitted thereto the safety valve opening
inwards and the stand pipes s and t u v we are pipes fitted to the bottom of the
Cylinder a for the purpose of carrying off the impurities which collect in the
chambers 1234. The action of the apparatus is as follows:-the crude Glycerino
is boiled in a suitable pan or still and the vapour arising therefrom passes up through
the Cylinder a as shewn by the arrows to the top thereof and is then drawn off by a
suitable pump and condensed, the impurities together with a certain amount of
glycerine cling to the baffle plates and bonnets and drop down and when a sufficient
quantity of impure liquor has accumulated it runs down the pipe n to the next lower
level and so on till it reaches the chambers 1. 2. 3. 4. whence the impure liquor
drains by means of the pipes now back into the still to be re-evaporated till all
the Glycerine is driven off and only impurities remain.
The liquid settling at each stage forms a trap to prevent the Vapour or steam
rising so that the steam in one level is constantly operating on the liquid immediately
above and distilling it and so on upwards the liquid as it gets into the top levels
getting purer each stage being more pure than the one immediately below.
The pipes and o are set in plates fitting the Cylinder a and made air tight by
brazing or packing and the said plates are secured together by stay bolts a'.
Having now particularly described and ascertained the nature of my said Inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
:-
I. In apparatus for rectifying Glycerine the pipes fitted with bonnets or covers 01
their equivalent for catching the impurities all substantially as described.
II. In apparatus for rectifying Glycerine the use of concentric Cylinders or
Chambers or their equivalent open alternately at the top and bottom substantially as
described.

page_text: TIL. In apparatus for rectifying Glycerine the combination of horizontal or inclined
baffle plates with concentric Cylinders or Chambers or their equivalent substantially
as described.
IV. The improved apparatus, substantially as described and shewn -operating
substantially as and for the purpose specified.
: Dated this 16th day of icon
EMIL SALAMAN,.
65 & 66, Chancery Lane, London, Agent for. Applicant.