US1960855A - Melting and esterifying apparatus - Google Patents

Melting and esterifying apparatus Download PDF

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Publication number
US1960855A
US1960855A US1960855DA US1960855A US 1960855 A US1960855 A US 1960855A US 1960855D A US1960855D A US 1960855DA US 1960855 A US1960855 A US 1960855A
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United States
Prior art keywords
boiler
melting
glycerine
copal
cooler
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Expired - Lifetime
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English (en)
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09F—NATURAL RESINS; FRENCH POLISH; DRYING-OILS; OIL DRYING AGENTS, i.e. SICCATIVES; TURPENTINE
    • C09F1/00—Obtaining purification, or chemical modification of natural resins, e.g. oleo-resins
    • C09F1/04—Chemical modification, e.g. esterification

Definitions

  • This invention is directed to a means for melting and esterifying copal and resin wherein such may be provided in large quantities without liability of re hazard and without the usual darkening incident to the present methods employed..
  • the present invention is designed to prevent the dangerous foaming of the copal and a simultaneously rapid discharge of the vapors from the fusion under a rapid melting of the copal, and the function of the apparatus tending to this result insures a uniform product while permitting the handling of the material in large quantities.
  • Figure 1 is a side elevation.
  • Figure 2 is a plan oi the centrifugal stirrer
  • Figure 3 shows a plan of the installation.
  • the boiler a has a foam divider b, upon which is provided the bottom centrifugal stirrer c.
  • the foam divider b is driven by means of a rope or chain drive d from a transmission or motor.
  • Y vapor draw-oir conduit e passes from the boiler a to the tube cooler f, thence to the condensate container g.
  • the glycerine is in a reservoir h, and is thence introduced into the boiler a through the glycerine arrangement i.
  • the glycerine vapors are condensed in the tube cooler f, g, and pass through the tubular conduit lc into the glycerine separating vessel Z.
  • the glycerine runs from the separating vessel l through the tubular conduit q, back into the boiler a.
  • the melting boiler has a manhole opening a1, for the introduction of the material to be melted, and is further provided with an air admission valve m and thermometers n and o.
  • the indifferent gas necessary for the melting process is introduced into the boiler through a shiftable carbon dioxide tube p.
  • On the front of the boiler is arranged an ester discharge cock r for the emptying of the boiler, and also a test cock s.
  • the melting boiler is lled through the manhole with copal or resin to one-fourth to twothirds of its capacity, and the bottom is heated with gas, oil or solid fuel.
  • an indifferent gas for example carbon dioxide is conducted into the boiler by means of a pipe which is adjustable in height.
  • the stirring mechanism which is provided with a foam divider is seiJ into operation, and the pipe through which the indifferent gas is introduced into the boiler is shifted nearly to the bottom of the boiler,
  • the vapors in manufacture are withdrawn through a water-cooled tube cooler, which is connected to a suction arrangement or fan.
  • an air introducing valve is provided which may be opened as required.
  • the vapors condensed in the tube cooler flow into a vessel through an appropriately arranged Siphon tube.
  • the temperature of the non-condensable gases discharging from the cooler is measured through an appropriately arranged thermometer.
  • the temperature at which the fusion takes place amounts to about 280 to 300, in contrast to the temperatures, which in the boilers now ordinarily in use amount to 360 and over.
  • a test cock is provided upon the boiler.
  • the esterication takes place.
  • the necessary amount of linseed oil for the solution of the copal is introduced into the boiler through an appropriate valve; in the case of resin the addition of oil takes place only after esterication.
  • the amounts of glycerine or the like necessary for the esterilcation are filled into a reservoir and added through a distributing worm, under the pressure of carbon dioxid at a predetermined temperature, to the melt.
  • the vapors liberated in the reaction pass through the tube cooler and here become condensed.
  • the water vapors pass to the draw-off arrangement, because the temperature of the cooler at the upper portion is adjusted to about 100.
  • From the tube cooler the condensates are caught in a separating vessel, and here they separate in accordance with their specific weights, and in fact the separating vessel is so arranged that the specically heaviest condensate, namely glycerine,
  • the emptying of the boiler may take place through a discharge Valve or by pumping out or forcing out.
  • An apparatus for melting and esterifying copal in quantities in excess of 100 kg. comprising a vertical boiler, a centrifugal stirring mechanism at the bottom of the boiler, a foam divider at the upper portion of the boiler, a glycerine reserêt, a cooler, the boiler being open between the glycerine reservoir and the cooler, a condensate separator connected with the cooler, a tubular conduit leading from the separator to the boiler to return the condensate to the boiler, and means for delivering a neutral gas to the boiler.
  • An apparatus for melting and esterifying copal in quantities in excess o1" l0() kg. comprising a vertical boiler designed to be closed vaportight, a centrifugal stirring mechanism at the bottom of the boiler, a foam divider at the upper portion of the boiler, a glycerine reservoir, a tube cooler, the boiler being arranged between tbe glycerine reservoir and the cooler, and means for delivering an indifferent gas to the boiler.
  • An apparatus for melting and esterifying copal in quantities in excess of 100 kg. comprising a vertical boiler, a centrifugal stirring mechanism at the bottom of the boiler, a foam divider at the upper portion of the boiler, a tube for admitting a neutral gas to the boiler, said tube being arranged for vertical adjustment within the boiler, a glycerine reservoir, and a tube cooler, the boiler being arranged between the glycerine reservoir and the cooler.
  • An apparatus for melting and esterifying copal in quantities in excess of 100 kg. comprising a vertical boiler designed to be closed vaportight, a centrifugal stirring mechanism at the bottom of the boiler, a foam divider at the upper portion of the boiler, a neutral gas admisssion tube opening within the boiler and adjustable for delivering the gas at different depths within the boiler, a glycerine reservoir, a tube cooler, the boiler being arranged between the glycerine reservoir and tube cooler, a condensate separator connected with the cooler, and a communication between the separator and boiler to return the condensate to the boiler.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
US1960855D 1928-09-26 Melting and esterifying apparatus Expired - Lifetime US1960855A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES87585D DE571015C (de) 1928-09-26 1928-09-26 Anlage zum Ausschmelzen und Verestern von Kopal in grossen Mengen

Publications (1)

Publication Number Publication Date
US1960855A true US1960855A (en) 1934-05-29

Family

ID=7513875

Family Applications (1)

Application Number Title Priority Date Filing Date
US1960855D Expired - Lifetime US1960855A (en) 1928-09-26 Melting and esterifying apparatus

Country Status (3)

Country Link
US (1) US1960855A (enrdf_load_stackoverflow)
DE (1) DE571015C (enrdf_load_stackoverflow)
NL (1) NL26598C (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2573978A (en) * 1947-06-05 1951-11-06 Ind Rayon Corp Method for dissolving cellulose xanthate
US2644009A (en) * 1948-10-15 1953-06-30 Distillers Co Yeast Ltd Continuous esterification process
US4279865A (en) * 1979-12-27 1981-07-21 Lyakhevich Genrikh D Organic compound oxidation plant

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2573978A (en) * 1947-06-05 1951-11-06 Ind Rayon Corp Method for dissolving cellulose xanthate
US2644009A (en) * 1948-10-15 1953-06-30 Distillers Co Yeast Ltd Continuous esterification process
US4279865A (en) * 1979-12-27 1981-07-21 Lyakhevich Genrikh D Organic compound oxidation plant

Also Published As

Publication number Publication date
NL26598C (enrdf_load_stackoverflow)
DE571015C (de) 1933-02-23

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