FR2202896A1 - - Google Patents

Info

Publication number
FR2202896A1
FR2202896A1 FR7336324A FR7336324A FR2202896A1 FR 2202896 A1 FR2202896 A1 FR 2202896A1 FR 7336324 A FR7336324 A FR 7336324A FR 7336324 A FR7336324 A FR 7336324A FR 2202896 A1 FR2202896 A1 FR 2202896A1
Authority
FR
France
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.)
Granted
Application number
FR7336324A
Other languages
French (fr)
Other versions
FR2202896B1 (ko
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.)
TDK Micronas GmbH
ITT Inc
Original Assignee
Deutsche ITT Industries GmbH
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 Deutsche ITT Industries GmbH, ITT Industries Inc filed Critical Deutsche ITT Industries GmbH
Publication of FR2202896A1 publication Critical patent/FR2202896A1/fr
Application granted granted Critical
Publication of FR2202896B1 publication Critical patent/FR2202896B1/fr
Expired legal-status Critical Current

Links

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)
  • 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)
FR7336324A 1972-10-13 1973-10-11 Expired FR2202896B1 (ko)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
FR2202896A1 true FR2202896A1 (ko) 1974-05-10
FR2202896B1 FR2202896B1 (ko) 1977-05-27

Family

ID=23146189

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7336324A Expired FR2202896B1 (ko) 1972-10-13 1973-10-11

Country Status (8)

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

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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
FI56861B (fi) 1979-12-31
FR2202896B1 (ko) 1977-05-27
JPS5325346B2 (ko) 1978-07-26
FI56861C (fi) 1980-04-10
DE2350386A1 (de) 1974-04-25
CA983655A (en) 1976-02-17
BR7307863D0 (pt) 1974-07-18
JPS4974243A (ko) 1974-07-17
KR790001111B1 (ko) 1979-09-03
GB1416617A (en) 1975-12-03

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Legal Events

Date Code Title Description
ST Notification of lapse