BE465367A - - Google Patents
Info
- Publication number
- BE465367A BE465367A BE465367DA BE465367A BE 465367 A BE465367 A BE 465367A BE 465367D A BE465367D A BE 465367DA BE 465367 A BE465367 A BE 465367A
- Authority
- BE
- Belgium
- Prior art keywords
- emi
- crystals
- solution
- sodium sulfate
- sulfuric acid
- Prior art date
Links
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 70
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 39
- 235000011152 sodium sulphate Nutrition 0.000 claims description 39
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 31
- 239000013078 crystal Substances 0.000 claims description 26
- 239000000243 solution Substances 0.000 claims description 24
- 238000009987 spinning Methods 0.000 claims description 22
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 18
- 229920000297 Rayon Polymers 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 150000003839 salts Chemical class 0.000 claims description 13
- 229960001763 zinc sulfate Drugs 0.000 claims description 11
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 11
- 239000012452 mother liquor Substances 0.000 claims description 7
- 235000009529 zinc sulphate Nutrition 0.000 claims description 7
- 239000011686 zinc sulphate Substances 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 6
- 238000002386 leaching Methods 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 239000002964 rayon Substances 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 description 11
- 230000008020 evaporation Effects 0.000 description 10
- 239000002253 acid Substances 0.000 description 7
- 238000002425 crystallisation Methods 0.000 description 7
- 230000008025 crystallization Effects 0.000 description 7
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000005406 washing Methods 0.000 description 5
- 239000010446 mirabilite Substances 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 3
- 235000019341 magnesium sulphate Nutrition 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 230000001376 precipitating effect Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000012047 saturated solution Substances 0.000 description 3
- WBHQBSYUUJJSRZ-UHFFFAOYSA-M sodium bisulfate Chemical compound [Na+].OS([O-])(=O)=O WBHQBSYUUJJSRZ-UHFFFAOYSA-M 0.000 description 3
- 229910000342 sodium bisulfate Inorganic materials 0.000 description 3
- RSIJVJUOQBWMIM-UHFFFAOYSA-L sodium sulfate decahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-]S([O-])(=O)=O RSIJVJUOQBWMIM-UHFFFAOYSA-L 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 230000009194 climbing Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000012991 xanthate Substances 0.000 description 2
- 229920002955 Art silk Polymers 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Artificial Filaments (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB18390/45A GB596086A (en) | 1945-07-18 | Improved process for the recovery of chemical products from viscose rayon spinning baths |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE465367A true BE465367A (d) |
Family
ID=10111632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE465367D BE465367A (d) | 1945-07-18 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE465367A (d) |
| DE (1) | DE853493C (d) |
| FR (1) | FR926960A (d) |
| NL (1) | NL61277C (d) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE444048C (de) * | 1923-08-29 | 1927-05-14 | Bernhard Young Dr | Verfahren zur Herstellung von trockenem Natriumsulfat aus Glaubersalz in einem Arbeitsgang |
| DE478987C (de) * | 1924-10-04 | 1929-07-08 | Waldemar Recha Dipl Ing | Verfahren zur kontinuierlichen Herstellung von trockenem Natriumsulfat aus Glaubersalz |
| DE424983C (de) * | 1924-10-04 | 1926-02-10 | Waldemar Recha Dipl Ing | Verfahren zur kontinuierlichen Herstellung von wasserfreiem Natriumsulfat |
| DE662448C (de) * | 1935-10-03 | 1938-07-13 | Zahn & Co G M B H | Verfahren zur Entwaesserung von schmelzbaren Salzen, z. B. Glaubersalz, in Drehrohren |
| DE710373C (de) * | 1937-04-13 | 1941-09-11 | I G Farbenindustrie Akt Ges | Verfahren zur Regenerierung von Ammoniumsulfat und Natriumsulfat enthaltenden Viskosespinnbaedern |
| BE452848A (d) * | 1942-10-26 |
-
0
- BE BE465367D patent/BE465367A/fr unknown
- NL NL61277D patent/NL61277C/xx active
-
1946
- 1946-05-15 FR FR926960D patent/FR926960A/fr not_active Expired
-
1948
- 1948-12-31 DE DEP28677D patent/DE853493C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR926960A (fr) | 1947-10-16 |
| DE853493C (de) | 1952-10-23 |
| NL61277C (d) | 1900-01-01 |
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