ASTM D4180-99

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 4180 – 99
Standard Test Method for
Vibratory Packing Density of Formed Catalyst Particles and
Catalyst Carriers
This standard is issued under the fixed designation D 4180; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This test method covers the determination of the vibra-
tory packing density of formed catalyst and catalyst carriers.
For the purpose of this test, catalyst particles are defined as
extrudates, spheres, or formed pellets of 0.8 to 4.8-mm ( ⁄32to
⁄16-in.) nominal diameter.
1.2 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
2. Referenced Documents
2.1 ASTM Standards:
E 177 Practice for Use of the Terms Precision and Bias in
FIG. 1 Feed Funnel
ASTM Test Methods
E 456 Terminology Relating to Quality and Statistics
E 691 Practice for Conducting an Interlaboratory Study to
5. Apparatus
,
Determine the Precision of a Test Method 3 4
5.1 Glass Cylinders, capacity 250 mL, feed and measur-
3,5
ing.
3. Summary of Test Method
,
3 6
5.2 Vibrator, conventional hand-held, with hard rubber
3.1 A preconditioned sample of formed catalyst or catalyst
or metal impactor.
carrier is vibrated in a cylinder. The vibratory packing density
5.3 Feed Funnel, plastic, glass, or metal as shown in Fig. 1.
is determined from a known weight and vibrated volume.
5.4 Ring Stand, Vibrator Holder and Clamps as shown in
Fig. 2 and Fig. 3.
4. Significance and Use
5.5 Desiccator, with a desiccant grade molecular sieve such
4.1 This test method is to be used for measuring the
as a No. 4A.
vibratory packing density of formed particles that will not
5.6 Balance having sensitivity of 0.1 g.
break up during sampling, filling, or vibrating of the measuring
5.7 Drying Oven.
cylinder under test conditions.
If you are aware of alternative suppliers, please provide this information to
ASTM Headquarters. Your comments will receive careful consideration at a meeting
This test method is under the jurisdiction of ASTM Committee D-32 on of the responsible technical committee, which you may attend.
Catalysts and is the direct responsibility of Subcommittee D32.02 on Physical- A Kimble 20024 Feed-Glass Cylinder has been found satisfactory.
Mechanical Properties. A Corning 3062 or a Kimble 20026 Measuring Glass Cylinder has been found
Current edition approved Oct. 10, 1999. Published December 1999. Originally satisfactory.
e1 6
published as D 4180 - 88. Last previous edition D 4180- 88 (1994) A Wahl Vibrator, Model 4180, 4 in 1, 120-V 60-Hz 11-W, available from Wahl
Annual Book of ASTM Standards, Vol 14.02. Clipper Corp., Sterling, IL has been found satisfactory.
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
D4180–99
FIG. 2 Assembly of Apparatus
FIG. 3 Vibrator Holder
NOTE 1—These conditions may not be appropriate for all materials.
6. Procedure
NOTE 2—Since many catalyst formulations are strong adsorbents, the
6.1 Heat an adequate sample(s) at 673 K (400°C) 6 15 K
use of a No. 4A indicating (cobalt-treated) molecular sieve as a desiccat-
for not less than 3 h. Normally, this treatment can take place in
ing medium is suggested. The desiccant should be regener
...