Classifications

• • D—TEXTILES; PAPER
  • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
  • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
  • D21C11/00—Regeneration of pulp liquors or effluent waste waters
  • D21C11/06—Treatment of pulp gases; Recovery of the heat content of the gases; Treatment of gases arising from various sources in pulp and paper mills; Regeneration of gaseous SO2, e.g. arising from liquors containing sulfur compounds
  • D21C11/08—Deodorisation ; Elimination of malodorous compounds, e.g. sulfur compounds such as hydrogen sulfide or mercaptans, from gas streams
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01D—SEPARATION
  • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
  • B01D53/34—Chemical or biological purification of waste gases
  • B01D53/46—Removing components of defined structure
  • B01D53/48—Sulfur compounds
  • B01D53/52—Hydrogen sulfide
• • C—CHEMISTRY; METALLURGY
  • C01—INORGANIC CHEMISTRY
  • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
  • C01B17/00—Sulfur; Compounds thereof
  • C01B17/64—Thiosulfates; Dithionites; Polythionates
  • C01B17/66—Dithionites or hydrosulfites (S2O42-)
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
  • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
  • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Landscapes

• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Organic Chemistry (AREA)
• General Chemical & Material Sciences (AREA)
• Environmental & Geological Engineering (AREA)
• Analytical Chemistry (AREA)
• Health & Medical Sciences (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Inorganic Chemistry (AREA)
• Biomedical Technology (AREA)
• Treating Waste Gases (AREA)
• Gas Separation By Absorption (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=20391129

Family Applications (1)

Country Status (10)

Families Citing this family (23)

Family Cites Families (6)

• 1993
  • 1993-09-17 SE SE9303034A patent/SE501782C2/en not_active IP Right Cessation
• 1994
  • 1994-09-07 CA CA002171342A patent/CA2171342A1/en not_active Abandoned
  • 1994-09-07 BR BR9407636A patent/BR9407636A/en not_active IP Right Cessation
  • 1994-09-07 RU RU96108406A patent/RU2119375C1/en not_active IP Right Cessation
  • 1994-09-07 AU AU77125/94A patent/AU7712594A/en not_active Abandoned
  • 1994-09-07 JP JP7509118A patent/JPH09502651A/en active Pending
  • 1994-09-07 WO PCT/SE1994/000829 patent/WO1995007750A1/en not_active Ceased
  • 1994-09-07 CN CN94193932A patent/CN1066634C/en not_active Expired - Fee Related
• 1996
  • 1996-03-13 NO NO961016A patent/NO305277B1/en not_active IP Right Cessation
  • 1996-03-15 FI FI961237A patent/FI961237A7/en not_active IP Right Cessation

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