1. Introduction

Hydrolite CD 550 resin is a cation exchange resin containing a sulfonate group (-SO3H ₎ in a styrene-divinylbenzene copolymer with a macroporous structure. It is used primarily as a catalyst in the chemical industry for esterification and ether bond degradation reactions, particularly for the catalytic synthesis of methyl tert-butyl ether (MTBE).

2. Physicochemical characteristics

Name of the indicator	Meaning
Moisture content, %	45,0-55,0
Total exchange capacity, mmol/g	≥4.80
Bulk density, g/ml	0,78-0,88
True density, g/ml	1.23-1.28
Particle size range, %	(0.45-1.250 mm) ≥95.0
Specific surface area, m2 ^/ h	40-50
Average pore size	200-300
Maximum operating temperature, °C	120

CD 550 macroporous strongly acidic cation exchange resin, special for catalysis

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