公开(公告)号：WO2004083138A1

公开(公告)日：2004-09-30

申请号：PCT/EP2004/002578

申请日：2004-03-12

Applicant: NOVARA TECHNOLOGY S.R.L. ,  BOARA, Giulio ,  PEDRETTI, Simone ,  RÜCKEMANN, Andreas ,  SPARPAGLIONE, Massimo

Inventor： BOARA, Giulio ,  PEDRETTI, Simone ,  RÜCKEMANN, Andreas ,  SPARPAGLIONE, Massimo

IPC: C03B19/12

CPC classification number: C04B35/14 ,  C03B19/12 ,  C04B35/624 ,  C04B35/6268 ,  C04B2235/3287 ,  C04B2235/441 ,  C04B2235/444 ,  C04B2235/6023 ,  C04B2235/606 ,  Y02P40/57

Abstract: Particularly shaped articles constituted by silicon oxide, as such or with suitable additives, prepared by room temperature molding according to a process comprising: preparation of a sol starting from a silicon alcoxide, or from a silicon alcoxide and at least a precursor of at least one of the additional elements; hydrolysis of the sol obtained thereby; addition of colloidal silica; pouring the resulting mixture into the desired mould; sol gelling and fast removal of the solid product; gel drying; gel densification by means of a thermal treatment at temperature ranging from 900 °C to 1500 °C. The articles can be used as preforms for the optical fiber spinning.

Abstract translation: 由氧化硅本身或与适当的添加剂构成的特殊成形制品通过室温成型制备，所述方法包括：从硅烷醇硅酸钠或至少一种至少一种硅氧烷的前体制备溶胶 的附加要素; 由此得到的溶胶水解; 加入胶体二氧化硅; 将所得混合物倒入所需的模具中; 溶胶凝胶和快速去除固体产品; 凝胶干燥; 凝胶致密化，通过在900℃至1500℃的温度范围内进行热处理。 这些物品可以用作光纤纺丝的预成型件。

公开(公告)号：WO2005040053A1

公开(公告)日：2005-05-06

申请号：PCT/EP2004/010174

申请日：2004-09-11

Applicant: NOVARA TECHNOLOGY S.R.L. ,  COSTA, Fulvio ,  GINI, Lucia ,  RÜCKEMANN, Andreas ,  COSTA, Lorenzo

Inventor： COSTA, Fulvio ,  GINI, Lucia ,  RÜCKEMANN, Andreas ,  COSTA, Lorenzo

IPC: C03C1/00

CPC classification number: C03C1/002 ,  C03B19/12 ,  C03C1/006 ,  C03C3/06 ,  C03C14/008 ,  C03C2203/26 ,  C03C2203/27 ,  C03C2203/34 ,  C03C2203/52 ,  C03C2214/14 ,  C03C2214/32 ,  G21F9/12 ,  G21F9/14 ,  G21F9/30 ,  G21F9/305

Abstract: Sol-gel-process to prepare aerogels comprising the preparation of a solution of a compound having the formula X m -M-(OR) n-m , the hydrolysis of the compound to give a sol, gelation, drying, densifying and sintering. This method can be used to treat radioactive residues constituted by aqueous solutions of radioactive substances.

Abstract translation: 溶胶 - 凝胶法制备气凝胶，包括制备具有式Xm-M-（OR）n-m的化合物的溶液，化合物的水解得到溶胶，凝胶化，干燥，致密化和烧结。 该方法可用于处理由放射性物质的水溶液构成的放射性残留物。

公开(公告)号：EP1667938A1

公开(公告)日：2006-06-14

申请号：EP04765097.3

申请日：2004-09-11

Applicant: Novara Technology S.R.L.

Inventor： COSTA, Fulvio ,  GINI, Lucia ,  RÜCKEMANN, Andreas ,  COSTA, Lorenzo

IPC: C03C1/00 ,  C03B19/12 ,  C03C3/06 ,  G21F9/30

CPC classification number: C03C1/002 ,  C03B19/12 ,  C03C1/006 ,  C03C3/06 ,  C03C14/008 ,  C03C2203/26 ,  C03C2203/27 ,  C03C2203/34 ,  C03C2203/52 ,  C03C2214/14 ,  C03C2214/32 ,  G21F9/12 ,  G21F9/14 ,  G21F9/30 ,  G21F9/305

Abstract: Sol-gel-process to prepare aerogels comprising the preparation of a solution of a compound having the formula Xm-M-(OR)n-m, the hydrolysis of the compound to give a sol, gelation, drying, densifying and sintering. This method can be used to treat radioactive residues constituted by aqueous solutions of radioactive substances.