CH232575A - Process for the desulphation of coagulation baths for viscose spinning. - Google Patents

Process for the desulphation of coagulation baths for viscose spinning.

Info

Publication number
CH232575A
CH232575A CH232575DA CH232575A CH 232575 A CH232575 A CH 232575A CH 232575D A CH232575D A CH 232575DA CH 232575 A CH232575 A CH 232575A
Authority
CH
Switzerland
Prior art keywords
desulphation
viscose spinning
coagulation baths
baths
coagulation
Prior art date
Application number
Other languages
French (fr)
Inventor
Appareils Et Evaporate Anonyme
Original Assignee
App Et Evaporateurs Kestner So
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 App Et Evaporateurs Kestner So filed Critical App Et Evaporateurs Kestner So
Publication of CH232575A publication Critical patent/CH232575A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G3/00—Compounds of copper
    • C01G3/10—Sulfates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0018—Evaporation of components of the mixture to be separated
    • B01D9/0022—Evaporation of components of the mixture to be separated by reducing pressure
    • 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
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/90—Separation; Purification
    • C01B17/901—Recovery from spent acids containing metallic ions, e.g. hydrolysis acids, pickling acids
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/26—Phosphates
    • C01B25/30—Alkali metal phosphates
    • C01B25/301—Preparation from liquid orthophosphoric acid or from an acid solution or suspension of orthophosphates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
    • C01D5/006—Recovery of sodium sulfate from coagulation baths for the spinning of viscose
    • 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)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
CH232575D 1942-08-13 1942-12-16 Process for the desulphation of coagulation baths for viscose spinning. CH232575A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR830543X 1942-08-13

Publications (1)

Publication Number Publication Date
CH232575A true CH232575A (en) 1944-06-15

Family

ID=9287482

Family Applications (1)

Application Number Title Priority Date Filing Date
CH232575D CH232575A (en) 1942-08-13 1942-12-16 Process for the desulphation of coagulation baths for viscose spinning.

Country Status (7)

Country Link
US (1) US2512266A (en)
BE (2) BE461184A (en)
CH (1) CH232575A (en)
DE (1) DE830543C (en)
FR (2) FR888915A (en)
GB (1) GB614002A (en)
NL (1) NL58267C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2758910A (en) * 1953-06-15 1956-08-14 American Viscose Corp Removing gaseous materials from liquid
FR1330350A (en) * 1962-05-08 1963-06-21 Kestner App Evaporateurs Process for the production of anhydrous sodium sulphate from viscose coagulation baths
CN108203099B (en) * 2016-12-19 2023-02-21 临沂大学 Combined equipment for comprehensively recycling waste heat resources in process of producing boric acid from low-grade boron magnesium ore
CN112473288B (en) * 2020-11-25 2022-04-15 赛得利(九江)纤维有限公司 Acid bath washing dust removal device and method
CN113233478A (en) * 2021-04-20 2021-08-10 潍坊金鑫化工化纤设备技术开发中心 Method for extracting high-purity sodium sulfate crystals from high-wet-modulus fiber coagulation bath

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1873329A (en) * 1929-07-12 1932-08-23 American Potash & Chem Corp Process of evaporative cooling
US2409624A (en) * 1943-07-20 1946-10-22 Granville Bernard Apparatus for extracting water from atmospheric air

Also Published As

Publication number Publication date
GB614002A (en) 1948-12-08
DE830543C (en) 1952-02-04
BE461184A (en) 1900-01-01
BE448007A (en) 1900-01-01
FR54218E (en) 1948-06-25
NL58267C (en) 1900-01-01
US2512266A (en) 1950-06-20
FR888915A (en) 1943-12-27

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