Jacobi GoldSorb 5500 Replacement Solution: YHGOLD Grade 1903 Activated Carbon Comparison — The Same-Tier Drop-In Choice for CTC 55 Coconut Shell Gold Recovery Carbon (with COA Test Data)

In CIP/CIL gold extraction, the grade of coconut shell gold recovery carbon decides both your gold recovery rate and your running cost. The Jacobi GoldSorb line is one of the most widely specified gold carbon product families on the international market, with GoldSorb™ 5500 sitting at the CTC 55 mid tier. YHGOLD Grade 1903, developed by Yihang carbon, is a coconut shell gold recovery carbon engineered precisely to this tier, supplied with a batch COA test report on every shipment. Based on both parties' published documents, this guide compares the two carbon products parameter by parameter. The core conclusion: YHGOLD Grade 1903 is a grade-for-grade, drop-in replacement for Jacobi GoldSorb 5500 — same coconut shell feedstock, same steam activation, same 6×12 mesh, same CTC 55 coconut shell gold recovery carbon — so it loads into the same circuit with no changes, while delivering a fully quantified ASTM-method COA for direct procurement verification.

Jacobi GoldSorb 5500 vs YHGOLD Grade 1903: The Replacement Relationship for Same-Tier Gold Recovery Carbon

Within the Jacobi GoldSorb gold carbon ladder, GoldSorb 5500 corresponds to the CTC 55 mid tier, between GoldSorb 4500 (CTC 45) and GoldSorb 6000 (CTC 60) — one of the most widely specified coconut shell gold recovery carbon grades used by mines worldwide. YHGOLD Grade 1903 from Yihang carbon is designed precisely to this tier as a same-grade replacement:

Both grades sit at the same CTC 55 activity tier with the same coconut shell feedstock system — switching requires no redesign of the adsorption circuit and no change to contact time. That is what "same-tier replacement" really means, and the compatibility question that matters most when comparing coconut shell gold recovery carbons.

pic:Jacobi GoldSorb 5500 vs YHGOLD Grade 1903 Activated Carbon

Head-to-Head Specification Table: YHGOLD Grade 1903 vs GoldSorb 5500

The comparison below is strictly based on both parties' published documents: Jacobi GoldSorb figures come from its official technical datasheet (TDS); YHGOLD Grade 1903 figures come from Yihang carbon's 55CTC COA metallurgical carbon test report (2025-12-22). Wherever test methods or data basis differ, it is stated plainly.

Honest note on data basis: the most visible structural difference in this table is that the Jacobi GoldSorb TDS leads with qualitative claims and design parameters, and does not publish quantified CTC, iodine, ash or other test values; YHGOLD Grade 1903's COA gives a firm, ASTM-method figure for every parameter. This does not mean the Jacobi product underperforms — it means the two documents differ in how much is quantified. For procurement flows that need written, batch-level verification, COA-style data is more direct and auditable.

CTC Activity and Iodine Number: Two Benchmarks of Coconut Shell Gold Recovery Carbon Performance

The adsorption activity of coconut shell gold recovery carbon is judged mainly by two metrics: CTC value (carbon tetrachloride activity) and iodine number.

• CTC ≥55%: YHGOLD Grade 1903's COA floor aligns with Jacobi GoldSorb 5500's CTC 55 tier — both sit in the well-developed micropore range needed to adsorb the gold-cyanide complex. This is the first basis on which "same-grade replacement" holds.
• Iodine number ≥1100 mg/g: direct evidence of a well-developed micropore structure. The higher the iodine number, the more micropore surface per gram of coconut shell gold recovery carbon is available for gold loading. GoldSorb 5500's TDS does not state an iodine figure; YHGOLD provides a firm minimum, making side-by-side comparison with your incumbent carbon straightforward.

Hardness and Attrition: Durability of Coconut Shell Gold Recovery Carbon in the CIL Circuit

Coconut shell gold recovery carbon inside a CIL tank faces constant mechanical agitation. Low hardness means more breakage, more fines, and more gold escaping with the tailings; high attrition means higher carbon make-up rates and a direct hit on cost per ounce recovered.

• YHGOLD Grade 1903: Ball Pan hardness ≥99.5% (ASTM D3802), loss on attrition ≤2% (ASTM D4058), platelet content ≤3% (AARL) — all three quantified.
• GoldSorb 5500: the TDS states "maximum hardness and abrasion resistance" and "low platelet content" qualitatively, without published numbers.

Test-method note: Ball Pan hardness (ASTM D3802, tumbling/abrasion principle) is not directly comparable with compression-based methods (e.g. GB/T strength). When both suppliers report under the same method, the numbers can be compared head-to-head. This is precisely why Yihang carbon's YHGOLD Grade 1903 reports everything to ASTM international standards — it sits on the same measurement basis as international brands that also test to ASTM.

Mesh Size and Particle Size Distribution: The Basis for a Seamless Same-Grade Swap

Whether a coconut shell gold recovery carbon is truly "drop-in" starts with mesh compatibility:

• Same mesh: YHGOLD Grade 1903 is 6×12 USS — identical to Jacobi GoldSorb 5500's mainstream size — so it loads into existing contactors with no change to screens or transfer equipment.
• Full sizing control: YHGOLD holds firm limits on +6 (≤4%), 6×7 (≥20%), 10×12 (≤8%) and -12 (≤2%), keeping oversize and fines in check for predictable screening performance at initial charge and lower circuit losses.
• Other sizes on request: Jacobi also offers 8×16 and 4×8; Yihang carbon can supply to requirement — please confirm with the supplier.

Data Transparency and Cost: Yihang carbon's Factory-Direct Same-Tier Alternative

Jacobi GoldSorb is supplied by Jacobi Carbons (part of Osaka Gas Chemicals), a global premium brand — its pricing reflects brand position, global distribution, and supporting services (circuit audits, carbon management training, recovery circuit optimization), which are genuinely valuable to many mines.

Yihang carbon's YHGOLD Grade 1903 is positioned differently: same-tier performance + transparent data + factory-direct cost — together, these three make up the full case for "drop-in replacement":

• Batch COA traceability: every shipment of coconut shell gold recovery carbon carries a test report issued to ASTM international standards — a written, auditable record that fits ISO-style procurement flows.
• Fully quantified specs: ten parameters covered — CTC, iodine, ash, moisture, density, hardness, attrition, pH, PSD and platelets — with no "data pending" and no "per contract" caveats.
• Same-circuit swap: same grade, same mesh, same feedstock and process — the only switching cost is one tank charge; no process changes.

Jacobi GoldSorb 5500 vs YHGOLD Grade 1903 Activated Carbon-Bubble Experiment

When to Switch to YHGOLD Grade 1903 over Jacobi GoldSorb 5500

Consider YHGOLD Grade 1903 if: you currently run Jacobi GoldSorb 5500 (or any other CTC 55 coconut shell gold recovery carbon) and want to cut your carbon budget without changing your circuit or risking gold recovery, and your procurement needs a batch COA as the acceptance record.

Stick with Jacobi if: your tender specifically requires the Jacobi brand, or you need its carbon management training and circuit optimization services and the premium is within budget.

The definitive way to settle any replacement decision is a side-by-side loading test on your own pulp: request matched samples from both suppliers and run them under identical conditions — that is the only authoritative answer to whether a coconut shell gold recovery carbon is a true same-tier drop-in in your circuit.

Frequently Asked Questions

Q: Can YHGOLD Grade 1903 replace Jacobi GoldSorb 5500?

Yes. YHGOLD Grade 1903 is a CTC 55 coconut shell gold recovery carbon from Yihang carbon, same-tier as Jacobi GoldSorb 5500, steam-activated at the same 6×12 mesh, and can be loaded directly into an existing CIP/CIL circuit (a drop-in replacement) with no process changes. A side-by-side loading test on your own pulp is recommended as final confirmation.

Q: What actually differs between YHGOLD Grade 1903 and GoldSorb 5500?

The activity tier is the same (CTC 55) and both are coconut shell gold recovery carbons. The real difference is in how the data is disclosed: the Jacobi GoldSorb TDS is largely qualitative, while YHGOLD provides a fully quantified ASTM-method COA (iodine ≥1100 mg/g, ash ≤3%, Ball Pan hardness ≥99.5%, attrition ≤2%, platelets ≤3%, etc.) for direct verification.

Q: Can Yihang carbon's YHGOLD hardness be compared directly with GoldSorb 5500's?

That depends on the method. YHGOLD reports Ball Pan hardness (≥99.5%, ASTM D3802). If Jacobi provides a figure under the same method, it is directly comparable; if it is a compression-based figure (e.g. GB/T strength), the two are not directly comparable — ask both suppliers to test under the same standard.

Q: What does the 55CTC COA test report cover?

CTC activity (≥55%), iodine number (≥1100 mg/g), ash (≤3%), moisture (≤4%), apparent density (480–520 g/cc), Ball Pan hardness (≥99.5%), loss on attrition (≤2%), extractable pH (9–11), full particle size distribution (+6 / 6×7 / 7×8 / 8×10 / 10×12 / -12) and platelet content (≤3%) — all per ASTM / AARL methods, supplied with each shipment.

Q: Do I need to adjust my CIP/CIL circuit after switching?

No. Same mesh (6×12), same tier (CTC 55) and the same coconut shell steam-activated feedstock mean adsorption kinetics and charging practice stay the same — run the circuit as before. We recommend checking the batch COA on first arrival and running one on-site loading verification.

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