{
  "url": "https://openlegislation.uk/eu-decision-2012-134/annex/division-5/division-10/division-1.10/division-1.10.4",
  "json_url": "https://openlegislation.uk/eu-decision-2012-134/annex/division-5/division-10/division-1.10/division-1.10.4.json",
  "legislation": "eudn/2012/134",
  "legislation_title": "Commission Implementing Decision of 28 February 2012 establishing the best available techniques (BAT) conclusions under Directive 2010/75/EU of the European Parliament and of the Council on industrial emissions for the manufacture of glass (notified under document C(2012) 865) (Text with EEA relevance) (2012/134/EU)",
  "legislation_url": "https://openlegislation.uk/eu-decision-2012-134",
  "path": "annex/division/5/division/10/division/1.10/division/1.10.4",
  "kind": "division",
  "number": "1.10.4",
  "heading": "HCl, HF emissions",
  "text": "Technique\nDescription\nSelection of raw materials for the batch formulation with a low content of chlorine and fluorine\nThe technique consists of a careful selection of raw materials that may contain chlorides and fluorides as impurities (e.g. synthetic soda ash, dolomite, external cullet, recycled filter dust) in order to reduce at source HCl and HF emissions which arise from the decomposition of these materials during the melting process\nMinimisation of the fluorine and/or chlorine compounds in the batch formulation and optimisation of the fluorine and/or chlorine mass balance\nThe minimisation of fluorine and/or chlorine emissions from the melting process may be achieved by minimising/reducing the quantity of these substances used in the batch formulation to the minimum commensurate with the quality of the final product. Fluorine compounds (e.g. fluorspar, cryolite, fluorsilicate) are used to confer particular characteristics to special glasses (e.g. opaque glass, optical glass). Chlorine compounds may be used as fining agents\nDry or semi-dry scrubbing, in combination with a filtration system\nDry powder or a suspension/solution of alkaline reagent are introduced and dispersed in the waste gas stream. The material reacts with the gaseous chlorides and fluorides to form a solid which has to be removed by filtration (electrostatic precipitator or bag filter)",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eudn/2012/134/annex/division/5/division/10/division/1.10/division/1.10.4",
    "retrieved_at": "2026-11-01T15:15:31.348652+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}