Process for continuously preparing double metal cyanide complex catalyst

A double metal cyanide, catalyst technology, applied in organic compound/hydride/coordination complex catalyst, physical/chemical process catalyst, chemical/physical process and other directions, can solve the problems of unstable product performance, liquid surface foam, etc.
CN1457928AInactive Publication Date: 2003-11-26SINOPEC JINLING PETROCHEMICAL CO LTD
1 Cites 10 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SINOPEC JINLING PETROCHEMICAL CO LTD
Publication Date
2003-11-26
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The continuous process of preparing double metal cyanide catalyst includes the steps of: mixing reaction of the materials, filtering and washing, replacement of water, concentration and addition of functional polymer. The catalyst is used in synthesis of polyether polyol and has high reaction activity and short inducing period. The prepared polyether polyol has very low unsaturation degree. The present invention has a technological period within 36 hr.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present invention relates to double metal cyanide (DMC) complex catalyst manufacturing process Background technique

[0002] As we all know, double metal cyanide complex catalyst (DMC cat) is used for ring-opening polymerization of epoxide, and its composition is generally:

[0003] m a 1 [M 2 (CN) b (G) c ] d ·xM 3 (X) e ·wH 2 O·yL 1 · zL 2 Formula I

[0004] m 1 is at least one metal ion selected from: Zn (II) , Fe (II) , Fe (III) 、Co (II) 、Ni (II) 、Mo (IV) , Sn (II) 、Cu (II) , Pb (II) 、Mo (VI) 、Al (III) , V (IV) , V (V) 、Sr (II) , W (IV) , W (VI) , Mn (II) and Cr (III)

[0005] m 2 is at least one transition metal ion selected from: Fe (II) , Fe (III) 、Co (II) 、Co (III) 、Cr (II) 、Cr (III) , Mn (II) , Mn (III) , V (IV) , V (V) 、Ir (III) 、Rh (III) 、Ni (II) 、Ru (II)

[0006] m 3 stands for M 1 and / or M 2

[0007] G, X is CN - , F - , Cl - 、Br - , I - , OH - , NO 2 - , CO 3 2- , NO ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More