Sample assessment
The gold–carbon catalyst begins as a granular sample. A jar change precedes the complete sieve-passage observation, while catalyst activity remains unmeasured. The laboratory test record documents this preparation only; applying the method to another batch requires a matched trial.
Recorded objective
Produce powder passing a 100 mesh sieve.
Equipment and selection
The recorded planetary machine is XQM. The corresponding TENCAN family is the Vertical square planetary ball mill. The jar volume identifies the test container and does not establish an exact machine variant or production capacity. Equipment association follows the recorded machine designation.
Test setup
| Recorded planetary machine | XQM |
|---|---|
| Documented setup | Initial 250 mL agate jar with 15–3 mm agate balls; 50 g granular catalyst; dry milling; speed setting 480; later 500 mL zirconia jar with standard zirconia balls. |
| Recorded operating cycle | Run 5 / pause 1; units not stated in mode field |
Speed values are reproduced as recorded settings. A rotational unit and planetary-disc versus jar-speed basis are not stated, so these numbers are not labelled rpm.
Recorded procedure and results
Particles remained after 1 hour in the agate arrangement. The procedure then changed to the 500 mL zirconia arrangement. After the recorded 7-hour stage, all material passed a 100 mesh sieve. The wording does not establish whether the 7 hours is a cumulative clock or time counted from the change.
Interpretation
Complete sieve passage supplies direct evidence for the target after the documented process change. The initial granular condition is included in the account. No sieve standard, micron conversion, gold-content assay or catalyst-activity measurement is supplied.
Practical precautions
Clarify the time convention and preserve the jar-change history when planning a repeat. Check contamination and catalyst activity independently, and use the same specified sieve rather than inferring an opening from the mesh number.
TENCAN alternatives to evaluate
For follow-up comparison, consider the TENCAN Laboratory Full-Directional Planetary Ball Mill. For gold–carbon catalyst, a matched QXQM trial can test whether changing orientation affects complete catalyst sieve passage and wear contamination separately. Keep sample mass, media and sampling times controlled. This is a proposed comparison; the test record does not demonstrate a superior result for that alternative. Confirm jar compatibility and the permitted complete loaded mass before selecting a configuration.
Procedure records XQM; related product is the corresponding tested machine family. Exact variant is not inferred from jar size.
About this trial
TENCAN laboratory trial, 2025. Observations above come from this experimental record; selection considerations and proposed comparisons are engineering interpretation. Results apply to this sample and recorded conditions.