CA983655A - Filtration of cellulosic solutions - Google Patents

Filtration of cellulosic solutions

Info

Publication number
CA983655A
CA983655A CA183,274A CA183274A CA983655A CA 983655 A CA983655 A CA 983655A CA 183274 A CA183274 A CA 183274A CA 983655 A CA983655 A CA 983655A
Authority
CA
Canada
Prior art keywords
filtration
cellulosic solutions
cellulosic
solutions
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA183,274A
Other versions
CA183274S (en
Inventor
Charles F. Murphy
Arthur Sarkisian
Edmund M. Lapolla
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ITT Inc
Original Assignee
ITT Industries Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ITT Industries Inc filed Critical ITT Industries Inc
Application granted granted Critical
Publication of CA983655A publication Critical patent/CA983655A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D37/00—Processes of filtration
    • 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
    • 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)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Artificial Filaments (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Filtering Materials (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
CA183,274A 1972-10-13 1973-10-12 Filtration of cellulosic solutions Expired CA983655A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29740672A 1972-10-13 1972-10-13

Publications (1)

Publication Number Publication Date
CA983655A true CA983655A (en) 1976-02-17

Family

ID=23146189

Family Applications (1)

Application Number Title Priority Date Filing Date
CA183,274A Expired CA983655A (en) 1972-10-13 1973-10-12 Filtration of cellulosic solutions

Country Status (8)

Country Link
JP (1) JPS5325346B2 (en)
KR (1) KR790001111B1 (en)
BR (1) BR7307863D0 (en)
CA (1) CA983655A (en)
DE (1) DE2350386A1 (en)
FI (1) FI56861C (en)
FR (1) FR2202896B1 (en)
GB (1) GB1416617A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2188558A (en) * 1986-04-07 1987-10-07 Plenty Ltd Filter medium

Also Published As

Publication number Publication date
FI56861B (en) 1979-12-31
FR2202896B1 (en) 1977-05-27
JPS5325346B2 (en) 1978-07-26
FI56861C (en) 1980-04-10
DE2350386A1 (en) 1974-04-25
BR7307863D0 (en) 1974-07-18
FR2202896A1 (en) 1974-05-10
JPS4974243A (en) 1974-07-17
KR790001111B1 (en) 1979-09-03
GB1416617A (en) 1975-12-03

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