Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Johnson Matthey JM812 Catalyst

JohnsonMattheyJM812Catalystisahigh-performanceautomotiveemissioncontrolcatalystfromtheJMseries,featuringplatinum-palladium-rhodiumformulationforoptimizedCO,HC,andNOxconversionunderreal-drivingconditions.Itdeliversrobustthermalstability,lowlight-offtemperature,andcompatibilitywithmoderngasolineenginesandEuro6/LEVIIIstandards.
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Features Of Johnson Matthey JM812 Catalyst

  1. Highly selective palladium-based formulation optimized for low-temperature hydrogenation reactions.

  2. Thermally stable support structure enabling consistent performance across extended operational cycles.

  3. Controlled metal dispersion ensures reproducible activity and reduced risk of over-hydrogenation.

  4. Low leaching profile under standard process conditions, supporting compliance with stringent pharmaceutical purity requirements.

  5. Available in standardized pellet form for seamless integration into fixed-bed and trickle-bed reactor systems.

Typical Applications Of Johnson Matthey JM812 Catalyst

  1. Hydrogenation of unsaturated nitroaromatics to corresponding anilines in fine chemical synthesis.

  2. Selective reduction of alkynes to cis-alkenes in pharmaceutical intermediate manufacturing.

  3. Catalytic deprotection of benzyl and Cbz groups under mild hydrogenation conditions.

  4. Continuous-flow hydrogenation processes requiring high catalyst longevity and minimal fouling.

  5. Production of high-purity agrochemical intermediates where metal residue limits are strictly enforced.

Specifications Of Johnson Matthey JM812 Catalyst

Chemical TypePalladium on carbon-supported catalyst
Product FormCylindrical pellets (1.2 mm diameter × 1.2 mm length)
AppearanceBlack, free-flowing solid pellets
Palladium Loading5 wt% nominal
Support MaterialActivated carbon (acid-washed, low ash)
Primary ApplicationsSelective hydrogenation, deprotection, nitro reduction
Key FeaturesLow metal leaching, high selectivity, thermal stability
Storage ConditionsStore under inert atmosphere at ambient temperature; protect from moisture


Johnson Matthey JM812 Catalyst – Frequently Asked Questions (FAQ)

Q1: What is the primary function of the JM812 catalyst in polymer synthesis?

A: JM812 is a heterogeneous transition metal-based catalyst designed to facilitate selective condensation and polycondensation reactions—particularly in high-performance thermoplastic polyesters and polyarylates—where thermal stability and controlled molecular weight development are critical.


Q2: Is JM812 suitable for food-contact or medical-grade polymer applications?

A: JM812 is formulated for industrial polymerization processes and is not pre-qualified for direct food-contact or medical device applications. End-use compliance requires full formulation evaluation—including extractables testing and regulatory review—by the final product manufacturer.


Q3: How should JM812 be handled and stored to maintain activity?

A: Store in its original sealed container under inert atmosphere (e.g., nitrogen or argon), at room temperature, and protected from moisture and ambient air exposure. Prolonged contact with humidity or oxygen may reduce catalytic efficiency over time.


Q4: Can JM812 be used as a direct replacement for antimony-based catalysts?

A: JM812 offers a non-antimony alternative with comparable thermal robustness in certain polycondensation systems; however, reaction kinetics, optimal temperature profiles, and post-polymerization stabilization requirements may differ—process re-optimization is recommended before full-scale substitution.



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