Chevreul has made a useful application of the digester to vegetable analysis.
The recondensed solvent flows immediately back into the digester and further extracts the material contained therein.
The process of extraction is briefly as follows: The material to be extracted is treated in a digester with petroleum-ether or one of the above-named solvents.
Chapter 15 Burning at first like a rick on fire, his enthusiasm for the digester as quickly died out.
A sudden gleam of light relieved his distress; he remembered that one of his friends, quite ill at one time, had made use of a Papin's digester to overcome his anaemia and preserve what little strength he had.
By this means the straw is softened and reduced in bulk, so that a larger quantity can be added before the digester is quite full.
About two hundred grams of the raw material is closely packed into a small digester or autoclave and covered with a solution of caustic soda having a specific gravity of 1.
For the alkaline process the interior of the digester does not require any special treatment, but with the acid process the internal portion of the boiler is carefully lined with a thick layer of acid-resisting brick and cement.
A perforated lead disc should be placed above the sample in the digester to prevent any of it from floating above the level of the solution.
The boiler is not emptied under pressure, but the pulp is discharged from the digester after the pressure has been lowered, and the manhole taken off.
The boiler or digester is filled with dusted rags, and the requisite amount of alkaline solution added.
The clean grass is conveyed by travelling belts to the digester house.
It is most important that the digester should be absolutely tight in order to prevent the escape of any free sulphurous acid gas, and the contents of the digester must be heated slowly until the maximum pressure has been reached.
The boiled straw is discharged into large tanks placed below the digester and washed with hot water, the smallest possible quantity being used consistent with complete washing in order to prevent the accumulation of large volumes of weak lye.
The syringe was only the third of an inch in diameter, fitted with a solid piston; and it was connected with the digester by a pipe furnished with a stopcock, by which the steam was admitted or shut off at will.
Hence it was that the steam which issued from the digester was not only able to support the piston and the air which pressed upon its upper surface, but the additional load with which the piston was weighted.
He was led to the invention of the Digester by certain experiments which he made for Boyle.
Under the ordinary pressure of the atmosphere water acquires this necessary elasticity at 212°; but as the steam in the digesterwas prevented from escaping, it acquired increased heat, and by consequence increased elasticity.
When the steam in the digester was raised and the cock turned, enabling it to rush against the lower side of the piston, he found that the expansive force of the steam raised a weight of fifteen pounds with which the piston was loaded.
In 1761 he proceeded to experiment on the force of steam by means of a small Papin’s digester and a syringe.
In 1761 he proceeded to experiment on the force of steam by means of a small Papin's digester and a syringe.
When the steam in the digester was raised and the cock turned, enabling it to rush against the lower side of the piston, he found that the expansive force of the steam raised a weight of fifteen pounds, with which the piston was loaded.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "digester" in a variety of sentences. We hope that you will now be able to make sentences using this word. Other words: beetle; enzyme; masher
