FR2355032A1 - Xanthates d'amidon reticule et leur preparation - Google Patents
Xanthates d'amidon reticule et leur preparationInfo
- Publication number
- FR2355032A1 FR2355032A1 FR7718069A FR7718069A FR2355032A1 FR 2355032 A1 FR2355032 A1 FR 2355032A1 FR 7718069 A FR7718069 A FR 7718069A FR 7718069 A FR7718069 A FR 7718069A FR 2355032 A1 FR2355032 A1 FR 2355032A1
- Authority
- FR
- France
- Prior art keywords
- starch
- preparation
- xanthates
- cross
- xanthatic
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B31/00—Preparation of derivatives of starch
- C08B31/02—Esters
- C08B31/06—Esters of inorganic acids
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Biochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
L'invention est relative à des xanthates d'amidon réticulé et à leur préparation. Dans un procédé de préparation d'un xanthate d'amidon, suivant lequel un amidon granulaire réticulé est xanthaté dans une pâte aqueuse contenant un excès d'hydroxyde de sodium ou de potassium, on incorpore une quantité de sel de magnésium soluble dans l'eau, avant la deshydratation de l'amidon xanthatique, qui apporte de 0,2 à 1,6 partie en poids de magnésium pour chaque partie en poids de soufre de xanthate, l'amidon xanthaté étant ensuite déshydraté par centrifugation ou filtration. Ces xanthates apportent des améliorations à la séparation d'ions de métaux lourds à partir de solutions aqueuses.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/695,617 US4051316A (en) | 1974-10-16 | 1976-06-14 | Removal of heavy metal ions from aqueous solutions with insoluble crosslinked-starch-xanthates |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2355032A1 true FR2355032A1 (fr) | 1978-01-13 |
FR2355032B1 FR2355032B1 (fr) | 1980-03-07 |
Family
ID=24793756
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7718069A Granted FR2355032A1 (fr) | 1976-06-14 | 1977-06-13 | Xanthates d'amidon reticule et leur preparation |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS52152986A (fr) |
BE (1) | BE855671A (fr) |
CA (1) | CA1063103A (fr) |
DE (1) | DE2726788C2 (fr) |
FR (1) | FR2355032A1 (fr) |
GB (1) | GB1520620A (fr) |
IT (1) | IT1079686B (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8753705B2 (en) * | 2005-06-07 | 2014-06-17 | Mgpi Processing, Inc. | Mineral-bound starch compositions and methods of making the same |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3385719A (en) * | 1965-02-25 | 1968-05-28 | Agriculture Usa | Process for production of an alkali starch xanthate solution |
US3763060A (en) * | 1972-06-09 | 1973-10-02 | Us Agriculture | Starch xanthate polyamide polyamine interpolymer paper strength additives |
FR2232573A1 (fr) * | 1973-06-09 | 1975-01-03 | Yuken Kagaku Kogyo Kk |
-
1977
- 1977-05-30 JP JP6390477A patent/JPS52152986A/ja active Granted
- 1977-06-02 CA CA279,760A patent/CA1063103A/fr not_active Expired
- 1977-06-07 IT IT4974977A patent/IT1079686B/it active
- 1977-06-13 FR FR7718069A patent/FR2355032A1/fr active Granted
- 1977-06-13 GB GB2462477A patent/GB1520620A/en not_active Expired
- 1977-06-14 BE BE178431A patent/BE855671A/fr not_active IP Right Cessation
- 1977-06-14 DE DE19772726788 patent/DE2726788C2/de not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3385719A (en) * | 1965-02-25 | 1968-05-28 | Agriculture Usa | Process for production of an alkali starch xanthate solution |
US3763060A (en) * | 1972-06-09 | 1973-10-02 | Us Agriculture | Starch xanthate polyamide polyamine interpolymer paper strength additives |
FR2232573A1 (fr) * | 1973-06-09 | 1975-01-03 | Yuken Kagaku Kogyo Kk |
Also Published As
Publication number | Publication date |
---|---|
CA1063103A (fr) | 1979-09-25 |
BE855671A (fr) | 1977-10-03 |
DE2726788A1 (de) | 1977-12-22 |
GB1520620A (en) | 1978-08-09 |
DE2726788C2 (de) | 1985-03-07 |
FR2355032B1 (fr) | 1980-03-07 |
JPS5342798B2 (fr) | 1978-11-14 |
JPS52152986A (en) | 1977-12-19 |
IT1079686B (it) | 1985-05-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |