# Commission Implementing Decision (EU) 2017/2117 of 21 November 2017 establishing best available techniques (BAT) conclusions, under Directive 2010/75/EU of the European Parliament and of the Council, for the production of large volume organic chemicals (notified under document C(2017) 7469) (Text with EEA relevance), Division BAT 65:: In order to reduce the load of HCl and phosgene sent to the final waste gas treatment and to increase resource efficiency, BAT is to recover HCl and phosgene from the process off-gas streams of TDI and/or MDI plants by using an appropriate combination of the techniques given below.

Extent: E+W+S+N.I.

Technique
Description
Applicability
a.
Absorption of HCl by wet scrubbing
See BAT 8d.
Generally applicable
b.
Absorption of phosgene by scrubbing
See Section 12.1. The excess phosgene is absorbed using an organic solvent and returned to the process
Generally applicable
c.
HCl/phosgene condensation
See Section 12.1
Generally applicable

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Source: https://www.legislation.gov.uk/eudn/2017/2117/annex/division/9/division/9.1/division/BAT+65 (the official version)
Page: https://openlegislation.uk/eu-decision-2017-2117/annex/division-9/division-9.1/division-BAT+65
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.