利索-全球专利检索

  1. 登录
  2. 注册
发明专利
JP2013503806A Novel process for the preparation of precipitated silica 有权

Novel process for the preparation of precipitated silica
摘要：
本発明は、沈降シリカの製造方法であって、（ｉ）２〜５のｐＨを有する水性原料を形成させ、（ii）反応媒体のｐＨを２〜５に維持するように、珪酸塩と酸とを同時に添加し、（iii）珪酸塩をｐＨ値が７〜１０になるまで添加し、（iv）ｐＨを７〜１０に維持するように、珪酸塩と酸とを同時に添加し、（ｖ）酸をｐＨが２．５〜５．３となるまで添加し、（vi）該反応媒体と該酸及び該珪酸塩とを、ｐＨを２．５〜５．３に維持するように接触させ、（vii）ｐＨを４．７〜６．３にまで上昇させるように珪酸塩を添加することからなる。
摘要（英）：

The present invention is a method for manufacturing a precipitated silica, (i) to form an aqueous feed having a pH of 2-5, so as to maintain the 2-5 pH of the (ii) the reaction medium, silicate and acid added door at the same time, by adding (iii) pH value silicate is added to a 7 to 10, so as to maintain the 7-10 the (iv) pH, the silicate and acid at the same time, (v ) acid was added until the pH is 2.5 to 5.3, it is brought into contact so as to maintain (and vi) the reaction medium and the acid and said silicon acid salt, a pH of 2.5 to 5.3 consists of adding the silicate to raise up to 4.7 to 6.3 and (vii) pH.

公开/授权文献
信息查询
Espacenet
0/0