FR2372767A1 - Production de tripolyphosphate de sodium granulaire de masse volumique peu elevee - Google Patents
Production de tripolyphosphate de sodium granulaire de masse volumique peu eleveeInfo
- Publication number
- FR2372767A1 FR2372767A1 FR7736301A FR7736301A FR2372767A1 FR 2372767 A1 FR2372767 A1 FR 2372767A1 FR 7736301 A FR7736301 A FR 7736301A FR 7736301 A FR7736301 A FR 7736301A FR 2372767 A1 FR2372767 A1 FR 2372767A1
- Authority
- FR
- France
- Prior art keywords
- sodium tripolyphosphate
- low density
- granular sodium
- density granular
- degrees
- 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
- 235000019832 sodium triphosphate Nutrition 0.000 title abstract 6
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000003599 detergent Substances 0.000 abstract 1
- 150000004687 hexahydrates Chemical class 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- 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
- C01B25/38—Condensed phosphates
- C01B25/40—Polyphosphates
- C01B25/41—Polyphosphates of alkali metals
- C01B25/418—After-treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Glanulating (AREA)
- Detergent Compositions (AREA)
- Fodder In General (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
La présente invention concerne la préparation de tripolyphosphate de sodium. Des particules de tripolyphosphate de sodium (STPP) finement divisé sont soumises a une pulvérisation d'eau à raison d'environ 36 % à environ 130 % en excès par rapport à la quantité stoechiométriquement nécessaire pour formation d'hexahydrate de tripolyphosphate de sodium afin de former un produit aggloméré qui est ensuite calciné à une température comprise entre 320 degrés C environ et 550 degrés C environ pour donner un produit tripolyphosphate de sodium granulaire d'une masse volumique apparente peu élevée et d'une faible frangibilité. Application à la préparation de compositions détergentes.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/748,003 US4134963A (en) | 1976-12-06 | 1976-12-06 | Production of low density granular sodium tripolyphosphate |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2372767A1 true FR2372767A1 (fr) | 1978-06-30 |
FR2372767B1 FR2372767B1 (fr) | 1983-04-22 |
Family
ID=25007575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7736301A Granted FR2372767A1 (fr) | 1976-12-06 | 1977-12-02 | Production de tripolyphosphate de sodium granulaire de masse volumique peu elevee |
Country Status (11)
Country | Link |
---|---|
US (1) | US4134963A (fr) |
JP (1) | JPS6016370B2 (fr) |
BE (1) | BE861466A (fr) |
CA (1) | CA1093785A (fr) |
DE (1) | DE2754312A1 (fr) |
ES (1) | ES464743A1 (fr) |
FR (1) | FR2372767A1 (fr) |
GB (1) | GB1563462A (fr) |
IT (1) | IT1089339B (fr) |
MX (1) | MX145716A (fr) |
NL (1) | NL7713000A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0059280A1 (fr) * | 1981-03-03 | 1982-09-08 | FMC Corporation | Préparation de produits de tripolyphosphate de sodium granulé |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4255274A (en) * | 1979-01-02 | 1981-03-10 | Fmc Corporation | Preparation of granular sodium tripolyphosphate products |
US4251498A (en) * | 1979-01-02 | 1981-02-17 | Fmc Corporation | Preparation of granular sodium tripolyphosphate products from screen undersize sodium tripolyphosphate particles |
US4315898A (en) * | 1980-06-30 | 1982-02-16 | Fmc Corportion | Preparation of granular sodium tripolyphosphate hexahydrate with low friability |
DE3035820A1 (de) * | 1980-09-23 | 1982-05-06 | Hoechst Ag, 6000 Frankfurt | Verfahren zur herstellung von granulierten alkalidi- oder -triphosphaten |
SE442193B (sv) * | 1983-05-25 | 1985-12-09 | Boliden Ab | Forfarande vid framstellning av granulert natriumtripolyfosfat |
US5045294A (en) * | 1990-01-08 | 1991-09-03 | Monsanto Company | Process for preparing medium density granular sodium phosphates |
US5294424A (en) * | 1990-06-20 | 1994-03-15 | Monsanto Company | Process for preparing high absorptivity granular sodium phosphates |
US5215731A (en) * | 1992-04-08 | 1993-06-01 | Monsanto Company | Process for preparing medium density granular sodium tripolyphosphate |
CN102502559B (zh) * | 2011-10-28 | 2013-05-08 | 苏州闻达食品配料有限公司 | 在盐水中快速溶解且不结块的预水合三聚磷酸钠及其制备方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE545177A (fr) * | ||||
DE1442992A1 (de) * | 1963-05-31 | 1968-12-19 | Budenheim Rud A Oetker Chemie | Verfahren zur Herstellung von grobkoernigen Natriumdi- und triphosphaten von leichtem Schuettgewicht |
DE2515141A1 (de) * | 1974-04-08 | 1975-10-16 | Fmc Corp | Verfahren zur herstellung von granuliertem natriumtripolyphosphat mit mittlerer schuettdichte |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA797732A (en) * | 1968-10-29 | Pals Raimond | Alkali metal tripolyphosphate product | |
US3054656A (en) * | 1958-12-04 | 1962-09-18 | Fmc Corp | Process for the production of improved sodium tripolyphosphate |
US3356447A (en) * | 1963-08-05 | 1967-12-05 | Electric Peduction Company Of | Process for the manufacture of alkali metal tripoly phosphates having desirable characteristics |
US3650685A (en) * | 1969-09-12 | 1972-03-21 | Stauffer Chemical Co | Low bulk density sodium polyphosphates |
DE2008495C3 (de) * | 1970-02-24 | 1974-12-05 | Knapsack Ag, 5033 Huerth-Knapsack | Verfahren zur Herstellung von körnigem Alkalitripolyphosphat |
GB1466868A (en) * | 1973-04-19 | 1977-03-09 | Unilever Ltd | Granulation of materials |
-
1976
- 1976-12-06 US US05/748,003 patent/US4134963A/en not_active Expired - Lifetime
-
1977
- 1977-11-04 CA CA290,272A patent/CA1093785A/fr not_active Expired
- 1977-11-25 NL NL7713000A patent/NL7713000A/xx not_active Application Discontinuation
- 1977-11-29 IT IT30217/77A patent/IT1089339B/it active
- 1977-12-02 FR FR7736301A patent/FR2372767A1/fr active Granted
- 1977-12-02 GB GB50358/77A patent/GB1563462A/en not_active Expired
- 1977-12-02 BE BE183145A patent/BE861466A/fr not_active IP Right Cessation
- 1977-12-03 JP JP52144642A patent/JPS6016370B2/ja not_active Expired
- 1977-12-05 MX MX171570A patent/MX145716A/es unknown
- 1977-12-05 ES ES464743A patent/ES464743A1/es not_active Expired
- 1977-12-06 DE DE19772754312 patent/DE2754312A1/de active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE545177A (fr) * | ||||
DE1442992A1 (de) * | 1963-05-31 | 1968-12-19 | Budenheim Rud A Oetker Chemie | Verfahren zur Herstellung von grobkoernigen Natriumdi- und triphosphaten von leichtem Schuettgewicht |
DE2515141A1 (de) * | 1974-04-08 | 1975-10-16 | Fmc Corp | Verfahren zur herstellung von granuliertem natriumtripolyphosphat mit mittlerer schuettdichte |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0059280A1 (fr) * | 1981-03-03 | 1982-09-08 | FMC Corporation | Préparation de produits de tripolyphosphate de sodium granulé |
Also Published As
Publication number | Publication date |
---|---|
US4134963A (en) | 1979-01-16 |
JPS5370999A (en) | 1978-06-23 |
CA1093785A (fr) | 1981-01-20 |
NL7713000A (nl) | 1978-06-08 |
JPS6016370B2 (ja) | 1985-04-25 |
BE861466A (fr) | 1978-06-02 |
IT1089339B (it) | 1985-06-18 |
DE2754312A1 (de) | 1978-06-08 |
DE2754312C2 (fr) | 1987-02-19 |
MX145716A (es) | 1982-03-25 |
ES464743A1 (es) | 1979-01-01 |
FR2372767B1 (fr) | 1983-04-22 |
GB1563462A (en) | 1980-03-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |