US1743035A - Determining volatile matter in combustible material - Google Patents
Determining volatile matter in combustible material Download PDFInfo
- Publication number
- US1743035A US1743035A US81368A US8136826A US1743035A US 1743035 A US1743035 A US 1743035A US 81368 A US81368 A US 81368A US 8136826 A US8136826 A US 8136826A US 1743035 A US1743035 A US 1743035A
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- Prior art keywords
- combustible material
- volatile matter
- casing
- sample
- determining
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/22—Fuels, explosives
- G01N33/222—Solid fuels, e.g. coal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S436/00—Chemistry: analytical and immunological testing
- Y10S436/908—Gravimetric analysis
Definitions
- This invention relates to a new and imdrawing a preferred form of apparatus for proved method for determining the volatile carrying out my improved method. matter in fuel, or other material.
- FIG 1 is a perspective View showing the 5 for a number of purposes and particularly in Crucible casing and L connection with determining the volatile con- Figure 2 is a vertical section through the tent of fuels such as coal.
- the volatile Crucible and Casing. content is an indication of a quality of the
- the cruciblecasing comprises the body 11 coal and of its suitability for various fuel and Cover 12 preferably formed of magnepurposes. It is highly important that tests site, although it may be formed of other re- 60 such as these be so standardized as to enraCllOry material capable 0f Standing high able different chemists in different laboratctemperatures.
- the Sample of tllo material to loo ⁇ 7 5 of one-half inch in the location of the crutostod l5 pldood lll tlleofuolble and the Crucible during the preliminary ignition may ollolo PlaCeCl 1n the CaSing-
- the Casing concause a variation in the volatile content detalmrlg the Crucible iS then placed directly termination 0f as much as 'Z5/100 0f 1% in t-lie muftle, which preferably is atemper-- precautions may be able to Obtain uniform l'leSll'ie Casing ll'lSlllalleS the, CIllCllOle SO results, it is very diiicult for dierent laboratho Sdmple ls not lofttod too l'dpldly- Tho tories to so manipulate the method that the foto of ho
- That step in the method of determining Si) I have illustrated in the accompanying volatile content of material which includes 30 Vhilev the same chemist using reasonable atllro of 950 dogmes ooltlglodo- Tho mag- ⁇ 80 Y placing a platinum receptacle having a sample of thismaterial in a closed refractory vessel and subjecting said vessel to heat in an oven uniformly to heat Said sample.
Description
Jan. 7, 1930. Gfx-L HALvoRsoN 1,743,035
` DETERMINING VOLATILE MAVTTER IN COMBUSTIBLE MATERIAL Filed Jan. l5, 1926 Patented Jan. 7, 1930 UNITED STATES PATENT OFFICE GAYLORD H. I-IALVORSON, OF DULUTI-I, MINNESOTA DETERMINING VOLATILE MATTER IN COMBUSTIBLE MATERIAL Application filed January 15, 1926. "Serial No. 81,368.
This invention relates to a new and imdrawing a preferred form of apparatus for proved method for determining the volatile carrying out my improved method. matter in fuel, or other material. In the drawing,
Tests of this character are in general use Figure 1 is a perspective View showing the 5 for a number of purposes and particularly in Crucible casing and L connection with determining the volatile con- Figure 2 is a vertical section through the tent of fuels such as coal. Here the volatile Crucible and Casing. content is an indication of a quality of the The cruciblecasing comprises the body 11 coal and of its suitability for various fuel and Cover 12 preferably formed of magnepurposes. It is highly important that tests site, although it may be formed of other re- 60 such as these be so standardized as to enraCllOry material capable 0f Standing high able different chemists in different laboratctemperatures. As shown in Figure 2, the ries to arrive at the same result in the tests Cover l2 iS provided With a Circular flange of similar samples, y V13 which surrounds a 'circular flange 14 on the 15 A method now in general use consists in body member in order to insure a complete 65 placing' a one gram sample in a platinum enclosure of the Crucible 15.V This Crucible Crucible of 15 cubic centimeters capacity and l5 may be formed of platinum, or any suitin placing the crucible in the from 0f a able material. The bottom 16 of the casing furnace registering 500 degrees centigrade body 11 1S preferably thinner than the side until the flame subsides and then placing it Walls and top of the casing and the casing 30 in the interior of a muffle where the tempera- 1S Sdppoltod by logs 17 So that tllo loottom l5 ture is 950 degrees centigrade for three minout of Contact Wltll tho Support upoll Wllloll utes, after which it is cooled and weighed, the tho odsmg ToStS- Y loss in weight representing volatile matter. In the use 0f my device, according to my In carrying out the above method a variation method, the Sample of tllo material to loo `7 5 of one-half inch in the location of the crutostod l5 pldood lll tlleofuolble and the Crucible during the preliminary ignition may ollolo PlaCeCl 1n the CaSing- The Casing concause a variation in the volatile content detalmrlg the Crucible iS then placed directly termination 0f as much as 'Z5/100 0f 1% in t-lie muftle, which preferably is atatemper-- precautions may be able to Obtain uniform l'leSll'ie Casing ll'lSlllalleS the, CIllCllOle SO results, it is very diiicult for dierent laboratho Sdmple ls not lofttod too l'dpldly- Tho tories to so manipulate the method that the foto of hodtmg Wlll loo u mlolm at all tlmeS C0341 will not be ignited more rapidly in one and results secured by dierent laboratories 35 @ase than in the @than using this apparatus will be truly comparable. 85
It is an object of the present invention to I have Shown one preferred form of 8Jppt provide a new and improved method for mtu? for Carrymg out my mprOYe method the determination of the volatile matter in but lt 1S .to loe/.understood that t'hls 1S Capable fuel or other material, whereby the determi- 0i modlcatlondand. I contemplate Such nation may be carried out by diiferent persons C @tiges and m0 l Canons as come W-lthm the "'90 with the assurance of securing uniform re- Splnctldcope of thef appended Clalms sults 1. That ste in the method of determininor It 1 5 a further ololecJ0 to Provlde a method volatile contdiit of material which includet of thls olldl'dotol" ddttptod to be .Ca-flod. out placing a receptacle having a sample of this 95 by the use of simple apparatus Wltll ldpldlty material in a closed vessel and placing said and efhciency.' vessel in a furnace uniformly to heat said Other and further objects will appear as sample, the description proceeds. 2. That step in the method of determining Si) I have illustrated in the accompanying volatile content of material which includes 30 Vhilev the same chemist using reasonable atllro of 950 dogmes ooltlglodo- Tho mag- `80 Y placing a platinum receptacle having a sample of thismaterial in a closed refractory vessel and subjecting said vessel to heat in an oven uniformly to heat Said sample.
e 3. That improvement in methods of determining the volatile content of combustible material which consists in weighin .a sample ofthe material, placing the weig ed sam ple ina container, enclosing the container in an insulating casing, applying toA theY casing heat of a predetermined temperature' in order to heat the sample,- removing the sample from the casing and the container, and finally Weighing the removed sample to'compare its Weight before and after being submitted to the heat treatment.- f f y 4. That improvement in methods VVof de termining the volatile content of combustible material which consists in, Weighing a sample of the material, placing theweig-hed' sample in agfcntainer enclosed in an insulatingV l casing, applying to the casting'hea't of a pre- 0f. Jannarg 1926.
y G man' H. HALvoRsoN.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US81368A US1743035A (en) | 1926-01-15 | 1926-01-15 | Determining volatile matter in combustible material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US81368A US1743035A (en) | 1926-01-15 | 1926-01-15 | Determining volatile matter in combustible material |
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US1743035A true US1743035A (en) | 1930-01-07 |
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US81368A Expired - Lifetime US1743035A (en) | 1926-01-15 | 1926-01-15 | Determining volatile matter in combustible material |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2688532A (en) * | 1951-11-02 | 1954-09-07 | Western Electric Co | Method of determining carbon content of organic finishing material |
US4565669A (en) * | 1983-04-21 | 1986-01-21 | Cem Corporation | Microwave ashing apparatus |
-
1926
- 1926-01-15 US US81368A patent/US1743035A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2688532A (en) * | 1951-11-02 | 1954-09-07 | Western Electric Co | Method of determining carbon content of organic finishing material |
US4565669A (en) * | 1983-04-21 | 1986-01-21 | Cem Corporation | Microwave ashing apparatus |
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