Catalysts

• Catalyst К-15

  Catalyst K-15 is used for decomposition of high-boiling by-products of isoprene synthesis (HBBP) and pyrane fraction containing 4-methyl-5,6-dihydro-α-pyrane (MDHP) and 4-methylenetetrahydro-α-pyrane (MTHP), or for combined decomposition of HBBP and pyrane fraction to produce isoprene, isobutylene and formaldehyde.

  Technical characteristics

  Aluminum oxide mass ratio, %	25.0±5.0
  Calcium oxide mass ratio, %, max	5.0
  Boron mass ratio, %	1.5±0.5
  Pour density, g/cm3 , max	1.0
  specific surface area, m2/g, max	11
  Static strength, MPa	3.5±0.5
  Catalytic properties:
  MDHP and MTHP total conversion, %, min	88
  Yield of isoprene from total decomposed MDHP and MTHP, %, min	57
  Yield of formaldehyde from total decomposed MDHP and MTHP, %, min	27

• Catalyst К-97 contact

  Catalyst K-97 contact is used as a contact for preliminary decomposition of high-boiling by-products of isoprene synthesis (HBBP) and pyrane fraction containing 4-methyl-5,6-dihydro-α-pyrane (MDHP) and 4-methylenetetrahydro-α-pyrane (MTHP), or for combined decomposition of HBBP and pyrane fraction to produce isoprene, isobutylene and formaldehyde.

  Technical characteristics

  Aluminum oxide mass ratio, %,  max	30
  Calcium oxide mass ratio, %	6±1
  Pour density, g/cm3 , max	1.5