Preparation method for active aluminosilicate

An aluminosilicate, active technology, applied in the field of comprehensive utilization of natural minerals, can solve the problems of high activation cost of natural minerals, single input product, material consumption, etc., and achieve the effects of easy promotion and implementation, wide source of raw materials and simple process flow
CN103570032AInactive Publication Date: 2014-02-12CHINA UNIV OF PETROLEUM (BEIJING) +1
7 Cites 17 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA UNIV OF PETROLEUM (BEIJING)
Publication Date
2014-02-12
Estimated Expiration
Not applicable · inactive patent

Smart Images

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

Abstract

Belonging to the comprehensive utilization field of natural minerals, the invention provides a preparation method for active aluminosilicate. The method makes use of a sub-molten salt system to activate natural a silicon-aluminum mineral at low energy consumption and efficiently utilizes the activation product. The method adopts a high concentration alkaline solution as a medium to perform liquid phase activation reaction on a natural silicon-aluminum mineral so as to destroy the crystal structure of the natural silicon-aluminum mineral, thus forming the high activity aluminosilicate able to be used for molecular sieve synthesis. The decomposition temperature of the mineral is far below the roasting temperature of traditional thermal activation and alkali fusion activation, the crystal structure of the mineral can be fully destroyed at low temperature, simultaneous extraction of silicon and aluminum in the natural silicon-aluminum mineral can be realized, and the process is easy to operate. The method provided by the invention also extends the range of raw materials for molecular sieve preparation, not only greatly reduces the molecular sieve production cost, but also provides an effective way for high value added utilization of natural silicon-aluminum minerals.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of comprehensive utilization of natural minerals, and relates to a process method for decomposing natural silicon-aluminum minerals at low temperature and utilizing them efficiently. Destroy the crystal structure of minerals and provide a highly active silicon-aluminum source that can be used for molecular sieve synthesis. Background technique

[0002] Natural silicon-aluminum minerals are rich in a large amount of silicon-aluminum elements, and the basic skeletons of these minerals are composed of silicon-oxygen polyhedrons and aluminum-oxygen polyhedrons connected in various ways. These polyhedrons are mostly connected in the form of common corners, forming a frame-like, layered, chain-like, and ring-like island-like skeleton. Due to the stable chemical structure of most natural silicon-aluminum minerals, it is difficult to directly utilize the rich silicon-aluminum minerals. At present, silicon and alum...

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