Classifications

• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
  • C08B11/00—Preparation of cellulose ethers
  • C08B11/20—Post-etherification treatments of chemical or physical type, e.g. mixed etherification in two steps, including purification
  • C08B11/22—Isolation
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01D—SEPARATION
  • B01D37/00—Processes of filtration
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01D—SEPARATION
  • B01D11/00—Solvent extraction
  • B01D11/02—Solvent extraction of solids
  • B01D11/0288—Applications, solvents
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
  • C08B3/00—Preparation of cellulose esters of organic acids
  • C08B3/22—Post-esterification treatments, including purification
  • C08B3/26—Isolation of the cellulose ester
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
  • C08B9/00—Cellulose xanthate; Viscose
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01D—SEPARATION
  • B01D2201/00—Details relating to filtering apparatus
  • B01D2201/08—Regeneration of the filter
  • B01D2201/085—Regeneration of the filter using another chemical than the liquid to be filtered
• • 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
  • Y02P20/00—Technologies relating to chemical industry
  • Y02P20/50—Improvements relating to the production of bulk chemicals
  • Y02P20/582—Recycling of unreacted starting or intermediate materials

Landscapes

• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Polymers & Plastics (AREA)
• Organic Chemistry (AREA)
• Materials Engineering (AREA)
• Health & Medical Sciences (AREA)
• Engineering & Computer Science (AREA)
• Medicinal Chemistry (AREA)
• Life Sciences & Earth Sciences (AREA)
• Biochemistry (AREA)
• Polysaccharides And Polysaccharide Derivatives (AREA)
• Solid-Sorbent Or Filter-Aiding Compositions (AREA)
• Compositions Of Macromolecular Compounds (AREA)
• Artificial Filaments (AREA)
• Filtering Materials (AREA)
• Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=23146189

Family Applications (1)

Country Status (8)

Families Citing this family (1)

• 1973
  • 1973-09-24 FI FI2972/73A patent/FI56861C/fi active
  • 1973-10-08 DE DE19732350386 patent/DE2350386A1/de active Pending
  • 1973-10-09 BR BR7863/73A patent/BR7307863D0/pt unknown
  • 1973-10-09 GB GB4703873A patent/GB1416617A/en not_active Expired
  • 1973-10-11 FR FR7336324A patent/FR2202896B1/fr not_active Expired
  • 1973-10-11 JP JP11337173A patent/JPS5325346B2/ja not_active Expired
  • 1973-10-12 CA CA183,274A patent/CA983655A/en not_active Expired
  • 1973-10-13 KR KR7301689A patent/KR790001111B1/ko not_active Expired

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