ITRE20080066A1 - Recupero e riutilizzo di gessi dentali - Google Patents

Recupero e riutilizzo di gessi dentali

Info

Publication number
ITRE20080066A1
ITRE20080066A1 IT000066A ITRE20080066A ITRE20080066A1 IT RE20080066 A1 ITRE20080066 A1 IT RE20080066A1 IT 000066 A IT000066 A IT 000066A IT RE20080066 A ITRE20080066 A IT RE20080066A IT RE20080066 A1 ITRE20080066 A1 IT RE20080066A1
Authority
IT
Italy
Prior art keywords
reuse
recovery
dental
plasters
dental plasters
Prior art date
Application number
IT000066A
Other languages
English (en)
Inventor
Andrea Leurini
Fabiano Soncini
Original Assignee
Andrea Leurini
Fabiano Soncini
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 Andrea Leurini, Fabiano Soncini filed Critical Andrea Leurini
Priority to IT000066A priority Critical patent/ITRE20080066A1/it
Publication of ITRE20080066A1 publication Critical patent/ITRE20080066A1/it

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B11/00—Calcium sulfate cements
    • C04B11/26—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Dental Preparations (AREA)

Description

Testo della descrizione
Recupero del gesso utilizzato per modelli, articolatori, muffole.
Di regola, il gesso arriva nei laboratori sottoforma di polvere che viene successivamente miscelato con acqua per diventare, in ultimo, un materiale duro e quindi adatto per compiere varie tipologie di lavori in campo dentale (modelli, muffole, articolatori, monconi ecc...).
Invece di buttare, a lavoro finito, i modelli di gesso nei rifiuti, li raccolgo per riutilizzarlo.
La mia idea è stata quella di riutilizzare il gesso indurito riportandolo allo stato di polvere. Una volta compiuta questa operazione, il gesso se viene rimiscelato con acqua non ridiventa duro come prima perché ha già tutte le particelle d’acqua che gli servirebbero per raggiungere lo stato solido. Per togliere l’acqua in eccesso bisogna scaldare il modello di gesso in un forno da laboratorio da temperatura ambiente a massimo 180 gradi centigradi circa. Una volta che la polvere si è raffreddata, si può di nuovo miscelare la polvere di gesso con acqua e alcuni additivi (borati, acetati, citrati e tartrati), per poi ottenere un materiale duro utilizzabile in vari settori.

Claims (1)

  1. Rivendicazioni 1. Procedimento per riutilizzare gessi dentali che comprende: • Temperatura di 180° centigradi, non superiore • 30 minuti di cottura • Gradi al minuto: 15° centigradi • Acqua naturale • Additivi: borace anidro
IT000066A 2008-07-10 2008-07-10 Recupero e riutilizzo di gessi dentali ITRE20080066A1 (it)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT000066A ITRE20080066A1 (it) 2008-07-10 2008-07-10 Recupero e riutilizzo di gessi dentali

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000066A ITRE20080066A1 (it) 2008-07-10 2008-07-10 Recupero e riutilizzo di gessi dentali

Publications (1)

Publication Number Publication Date
ITRE20080066A1 true ITRE20080066A1 (it) 2010-01-11

Family

ID=40637733

Family Applications (1)

Application Number Title Priority Date Filing Date
IT000066A ITRE20080066A1 (it) 2008-07-10 2008-07-10 Recupero e riutilizzo di gessi dentali

Country Status (1)

Country Link
IT (1) ITRE20080066A1 (it)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB260110A (en) * 1925-11-11 1926-10-28 Albert Edward Lovatt An improved process for restoring plaster of paris to its original state after the addition of water and use
US2418590A (en) * 1944-05-04 1947-04-08 United States Gypsum Co Process of making anhydrous calcium sulphate
DE2247757A1 (de) * 1972-09-29 1974-04-04 Boergardts Kg H & E Verwertung alter gipsformen als ausgangsmaterial fuer gipsprodukte
DE2251222A1 (de) * 1972-10-19 1974-05-02 Boergardts Kg H & E Verfahren zur herstellung einer masse fuer die herstellung von gipsformen aus ausrangierten gipsformen
EP0523726A1 (en) * 1991-07-17 1993-01-20 Mitsubishi Chemical Corporation Dental gypsum composition
WO1999012861A1 (en) * 1997-09-06 1999-03-18 Caso Limited Reclamation of gypsum materials
JP2001122645A (ja) * 1999-10-27 2001-05-08 Sumitomo Osaka Cement Co Ltd 再生半水石膏の製造方法及び土壌固化材の製造方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB260110A (en) * 1925-11-11 1926-10-28 Albert Edward Lovatt An improved process for restoring plaster of paris to its original state after the addition of water and use
US2418590A (en) * 1944-05-04 1947-04-08 United States Gypsum Co Process of making anhydrous calcium sulphate
DE2247757A1 (de) * 1972-09-29 1974-04-04 Boergardts Kg H & E Verwertung alter gipsformen als ausgangsmaterial fuer gipsprodukte
DE2251222A1 (de) * 1972-10-19 1974-05-02 Boergardts Kg H & E Verfahren zur herstellung einer masse fuer die herstellung von gipsformen aus ausrangierten gipsformen
EP0523726A1 (en) * 1991-07-17 1993-01-20 Mitsubishi Chemical Corporation Dental gypsum composition
WO1999012861A1 (en) * 1997-09-06 1999-03-18 Caso Limited Reclamation of gypsum materials
JP2001122645A (ja) * 1999-10-27 2001-05-08 Sumitomo Osaka Cement Co Ltd 再生半水石膏の製造方法及び土壌固化材の製造方法

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