US945612A

US945612A - Process of extracting turpentine and rosin.

Info

Publication number: US945612A
Application number: US42784108A
Authority: US
Inventors: Benjamin F A Saylor
Original assignee: STANDARD TURPENTINE AND PULP Co
Current assignee: STANDARD TURPENTINE AND PULP Co
Priority date: 1908-04-18
Filing date: 1908-04-18
Publication date: 1910-01-04
Anticipated expiration: 1927-01-04

Description

B. F. A. SAYLOR. v PROCESS OF EXTRAGTING TURPENTINE AND ROSIN.

APPLICATION FILED APR.1B, 1908.

Patented J an. e, 1910.

2 0ibm-c we 6 UNITED STATES PKTENT OFFICE.

BENJAMIN F. SAYLOR, OF ROME, GEORGIA, ASSIGNOR TO STANDARD TURPENTINE- AND PULP COMPANY, OF ATLANTA, GE'DRGIA, A CORPORATION-OF ARIZONA TEE-- arromr.

rnocnss or EXTRACTING TURPENTINE AND Rosin.

Application filed April 18, 1908. Serial No. 427,841.

To all whom it may concern:

Be it known that I, BEN Jams F. A. SAY- Lon, a citizen of the United States, residing at Rome, in the county of Floyd and State of Georgia, have invented certain new and useful Improvements in Processes of Extracting Turpentine and Rosin; and-I do hereby declare the following tobe a full, clear, and exact description of the invention,

fsuch as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in processes for extracting turpentine and rosin rom resinous woods containing the same.

The prima object of my invention is a process where y turpentine and rosin may be extracted from wood in a more economical and expeditious manner than previously, and whereby resins and turpenes may be produced in a better and purer state than formerly.

In carrying out my invention, I use a strong steel cylinder with a capacity of three or more cords of wood. This cylinder is provided with an opening fourteen inches in-diameter near the top thereofarranged in such a manner that the cylinder is steam and air-tight when closed. At the bottom of the cylinder there is a valve in a short discharge pipe about two inches in diameter through which pipe the resinous substances are withdrawn after they are extracted from the wood, as hereinafter described. In the bottom of the cylinder, near the discharge pipe, isa large opening about fourteen inches in diameter, ordinarily closed by a manhole lvalve through which of condensation. The cylinder is placed in an upri ht or sli htly inclined position, su rted %y a stee? frame fastened to or in a hseof concrete, and is also provided with connections which lead to a vacuum pipes In carrying out In process, Icharge the cylinder with-chip's, s ivers, or blocks of pine troduce into the cylinder a light hydrocaror other resin producing woods. I then in- Specification of Letters Patent. Patented J an. 4, 1910. I

hon, such as gasolene or benzin, preferably gasolene, in sufficientquantities to thoroughly submerge the Wood in the cylinder. The wood is soaked in the hydrocarbon for about an hour and then the excess of hydrocarbon is allowed to flow off. Small quantities of steam or hot water, at a tempera; ture about 212 F., are-then introduced into the jacket of the cylinder and the vacuum pump is started. This vacuum pump is kept in operation long enough to produce avacuum corresponding to about 27 inches of mercury, (that is, leaving a pressure of about one-tenth of an atmosphere) which usually requires about 20 minutes, with the apparatus proportioned as in the drawing. During this time, the interior of the cylinder does not become heated to an extent sufficient to vaporizeany appreciable amount of the gasolene, and even if considerable quantities of the gasolene were vaporized, it would not materially affect the ultimate result. The vacuum pump is then stopped and all openings into the cylinder closed,-

and opening the pores of the wood and attacking and dissolving out the resinous substances contained therein, and the heat has the effect of completing this action, whereby the resinous matter is thoroughly dis-, solved and freed from the wood. Complete solution and separation of the resinous substances from the wood take place within about two hours from the time the heat is applied to theclcsed cylinder, thus effecting the saving of several hours in the operation over any other process known to me. Hot

air or hot water at a temperature of about 200 F. and at a pressure considerably greater than the pressure in the cylinder, is then forced into the c linder through a valve in the top and this has the effect of driving down the resinous substances to the bottom and freeing the wood from any resinous matter adhering thereto. By thus treating the charge at a low heat and freed from and well-known methods ofdistillation.

\ trates an apparatus for carrying out my opening 5 in its top, through which the ma- .been removed. For the same reason the resthe resinous matter and turpentine contained in them separated, leaving the hydrocarbon sel p is for the purpose of collecting any an ordinary worm '0, which runs throu a condensing drum 'w andd scharges into a receptacle a2.

atmospheric influences, I obtain the result that the fiber of the wood is uninjured and is in good condition for the manufacture of wood pulp after the resinous substances have inous matter is obtained in almost as ure a condition as that obtained by the dip method in'vogue for many years by boxing trees. ,After having obtained the resinous substances, I then treat them by the ordinary The hydrocarbons withdrawn in the first step of the process are also redistilled, and

in a condition to be used a second time; In the accompanying drawing, which illusinvention, the figure represents said apparatus in cross section, partly in elevation, the supports being omitted.

a is the steel cylinder, provided with an terial' to be treated is fed into the cylinder, which openin is'usually closed by the cover 0, removably astened thereto.

(i represents the discharge pipe for the resinous material at the bottom of thecylin der. The cylinder is provided with a manhole opening 6, through which the material after treatment is drawn out, which manhole is ordinarily closed bya cover f. g represents the steam jacket, h, the valved steam pipe leading thereinto, the pressure age; is, the escape valve, and m, the valved ischarge pipe for the water of condensation.- n is the pipe for introducing air and hot water to the cylinder, 0, a pipe leading into a closed vessel 7), which is connected by a pipe 9 with the vacuum pump 1'. The vesvapors that may be sucked out of the cylinder a by the pump, and this vessel is providedwith a valved discharge pipe 8. a

' t is an ordinary still provided with a' steam coil u and having connected to its top y is a valved'pipe connecting the still t with the pipe d.

I claim l. The process of extracting turpentine and rosin from resinous woods, which consists in subjecting the wood in a closed vessel, to the action of a light hydrocarbon until the wood is thoroughly saturated therewith, then withdrawing the excess of hydrocarbon, then establishing a partial vacuum in said vessel, then subjecting said vessel to amoderate heat, and, finally, separating from the wood the resinous matter adhering thereto by mechanical means, substantially as described.

2. The process of extracting turpentine and rosin from resinous woods, which con sists in comminutin said woods, soaking the same with a light vessel, removing the excess of the hydrocarbon, establishing a partial vacuum in said vessel, subjectin said vessel to a heat not exceeding 212 p the top of said vessel to free the wood from ydrocarbon in a closed introducing a fluid into resinous matter adhering thereto, collecting theresinous matters extracted from the Wood, and separating the turpentine and rosin from the resinous matters, substan- In testimony whereof, I aflix my sigmature, in presence of two witnesses. BENJAMIN F. A. SAYLOR.

' Witnesses GEO. H. BYRNE,

R. M. 'PARKER;