GB512111A - Process for the clarification of fouled regenerating baths used in the manufacture of regenerated cellulose from viscose - Google Patents

Process for the clarification of fouled regenerating baths used in the manufacture of regenerated cellulose from viscose

Info

Publication number
GB512111A
GB512111A GB37063/38A GB3706338A GB512111A GB 512111 A GB512111 A GB 512111A GB 37063/38 A GB37063/38 A GB 37063/38A GB 3706338 A GB3706338 A GB 3706338A GB 512111 A GB512111 A GB 512111A
Authority
GB
United Kingdom
Prior art keywords
flotation
viscose
gms
fouled
clarification
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
GB37063/38A
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.)
Fairweather Harold G C
Original Assignee
Fairweather Harold G C
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
Priority to US152469A priority Critical patent/US2153449A/en
Application filed by Fairweather Harold G C filed Critical Fairweather Harold G C
Priority to GB37063/38A priority patent/GB512111A/en
Priority to NL91195A priority patent/NL53876C/xx
Priority to FR848075D priority patent/FR848075A/en
Priority to BE431956D priority patent/BE431956A/xx
Priority to CH209352D priority patent/CH209352A/en
Publication of GB512111A publication Critical patent/GB512111A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/02—Froth-flotation processes
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F13/00—Recovery of starting material, waste material or solvents during the manufacture of artificial filaments or the like
    • D01F13/02—Recovery of starting material, waste material or solvents during the manufacture of artificial filaments or the like of cellulose, cellulose derivatives or proteins
    • 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
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Degasification And Air Bubble Elimination (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

512,111. Froth flotation processes. FAIRWEATHER, H. G. C. (Manville Jenckes Corporation). Dec. 20, 1938, No. 37063. [Class 82 (ii)] Fouled regenerating baths which have been used for the regeneration of hydrated cellulose from viscose and which contain sulphur set free by decomposition of the viscose are clarified by froth flotation, the sulphur and other impurities being removed as a froth. The flotation may be effected by aeration only or with the addition of flotation reagents such as a saturated hydrocarbon, e.g. kerosene, or a dithiophosphoric acid compound. Examples are given showing the clarification of a bath containing when fresh 130 gms. sulphuric acid, 250 gms. sodium sulphate, and 14 gms. zinc sulphate per litre, the flotation being carried out (a) with no flotation reagents, (b) with a dicresyldithio phosphoric acid (Aerofloat 15), (c) with a frother containing a mixture of higher alcohols, (d) with kerosene, and (e) with cresylic acid. The flotation may take place in a mechanical or pneumatic machine.
GB37063/38A 1937-07-07 1938-12-20 Process for the clarification of fouled regenerating baths used in the manufacture of regenerated cellulose from viscose Expired GB512111A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US152469A US2153449A (en) 1937-07-07 1937-07-07 Clarification of rayon spin baths
GB37063/38A GB512111A (en) 1937-07-07 1938-12-20 Process for the clarification of fouled regenerating baths used in the manufacture of regenerated cellulose from viscose
NL91195A NL53876C (en) 1937-07-07 1938-12-22
FR848075D FR848075A (en) 1937-07-07 1938-12-27 Viscose spinning bath clarification process
BE431956D BE431956A (en) 1937-07-07 1939-01-02
CH209352D CH209352A (en) 1937-07-07 1939-01-03 Process for clarifying cloudy cellulose regeneration baths in hydrated form from viscose.

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US152469A US2153449A (en) 1937-07-07 1937-07-07 Clarification of rayon spin baths
GB37063/38A GB512111A (en) 1937-07-07 1938-12-20 Process for the clarification of fouled regenerating baths used in the manufacture of regenerated cellulose from viscose
NL91195A NL53876C (en) 1937-07-07 1938-12-22
FR848075T 1938-12-27
BE431956T 1939-01-02
CH209352T 1939-01-03

Publications (1)

Publication Number Publication Date
GB512111A true GB512111A (en) 1939-08-29

Family

ID=10393448

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37063/38A Expired GB512111A (en) 1937-07-07 1938-12-20 Process for the clarification of fouled regenerating baths used in the manufacture of regenerated cellulose from viscose

Country Status (6)

Country Link
US (1) US2153449A (en)
BE (1) BE431956A (en)
CH (1) CH209352A (en)
FR (1) FR848075A (en)
GB (1) GB512111A (en)
NL (1) NL53876C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE743688C (en) * 1941-05-03 1943-12-30 Kurmaerkische Zellwolle Process for cleaning the finishing agent used in the manufacture of rayon
US2578040A (en) * 1942-09-03 1951-12-11 American Cyanamid Co Method of and circuit for material modification and coolant clarification
US2462948A (en) * 1943-05-19 1949-03-01 Woonsocket Rayon Inc Flotation process of clarifying regenerating baths
US2713420A (en) * 1954-05-18 1955-07-19 Southwestern Eng Co Clarification process

Also Published As

Publication number Publication date
BE431956A (en) 1939-02-28
NL53876C (en) 1943-02-15
CH209352A (en) 1940-04-15
US2153449A (en) 1939-04-04
FR848075A (en) 1939-10-23

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