DE1593273A1 - Verfahren zur Trocknung und Reinigung von Alkalisalzen der Carboxymethylcellulose - Google Patents
Verfahren zur Trocknung und Reinigung von Alkalisalzen der CarboxymethylcelluloseInfo
- Publication number
- DE1593273A1 DE1593273A1 DE19661593273 DE1593273A DE1593273A1 DE 1593273 A1 DE1593273 A1 DE 1593273A1 DE 19661593273 DE19661593273 DE 19661593273 DE 1593273 A DE1593273 A DE 1593273A DE 1593273 A1 DE1593273 A1 DE 1593273A1
- Authority
- DE
- Germany
- Prior art keywords
- content
- carboxymethyl cellulose
- aromatic hydrocarbon
- drying
- hot gas
- 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.)
- Pending
Links
- 229920002134 Carboxymethyl cellulose Polymers 0.000 title claims description 21
- 235000010948 carboxy methyl cellulose Nutrition 0.000 title claims description 21
- 239000001768 carboxy methyl cellulose Substances 0.000 title claims description 14
- 239000008112 carboxymethyl-cellulose Substances 0.000 title claims description 14
- 238000000034 method Methods 0.000 title claims description 7
- 238000001035 drying Methods 0.000 title claims description 6
- 150000001447 alkali salts Chemical class 0.000 title description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 41
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000001913 cellulose Substances 0.000 claims 3
- 229920002678 cellulose Polymers 0.000 claims 3
- 150000003839 salts Chemical class 0.000 claims 3
- -1 alkali metal salts Chemical class 0.000 claims 2
- 229910052783 alkali metal Inorganic materials 0.000 claims 1
- 239000007789 gas Substances 0.000 description 17
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 8
- 208000008818 Chronic Mucocutaneous Candidiasis Diseases 0.000 description 7
- 239000003039 volatile agent Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 235000013373 food additive Nutrition 0.000 description 2
- 239000002778 food additive Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 150000001555 benzenes Chemical class 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000011928 denatured alcohol Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US50714265A | 1965-11-10 | 1965-11-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1593273A1 true DE1593273A1 (de) | 1970-07-09 |
Family
ID=24017425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19661593273 Pending DE1593273A1 (de) | 1965-11-10 | 1966-11-10 | Verfahren zur Trocknung und Reinigung von Alkalisalzen der Carboxymethylcellulose |
Country Status (5)
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3903076A (en) * | 1974-06-26 | 1975-09-02 | Dow Chemical Co | Preparation and purification of cellulose ethers |
| DE3729268A1 (de) * | 1987-09-02 | 1989-03-16 | Henkel Kgaa | Verfahren und anlage zur abtrennung und reinigung von celluloseethern und anderen cellulosederivaten |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3041736A (en) * | 1958-03-28 | 1962-07-03 | Union Carbide Corp | Method and apparatus for drying regenerated cellulose tubing |
| US3289312A (en) * | 1964-03-17 | 1966-12-06 | Fmc Corp | Drying of chlorinated isocyanurates and salts thereof |
-
1965
- 1965-11-10 US US507142A patent/US3451999A/en not_active Expired - Lifetime
-
1966
- 1966-11-09 SE SE15327/66A patent/SE342822B/xx unknown
- 1966-11-09 NL NL6615824A patent/NL6615824A/xx unknown
- 1966-11-09 GB GB50204/66A patent/GB1131252A/en not_active Expired
- 1966-11-10 DE DE19661593273 patent/DE1593273A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| SE342822B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-02-21 |
| GB1131252A (en) | 1968-10-23 |
| NL6615824A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1967-05-11 |
| US3451999A (en) | 1969-06-24 |
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