阅读说明：本技术 一种成型用结构助剂制备方法 (Preparation method of structural auxiliary for molding ) 是由 王晗 马幸 于宁瑞 于 2020-05-18 设计创作，主要内容包括：本发明公开了一种成型用结构助剂制备方法,包括如下步骤：S1、配制铝溶胶：取一定量乙酸,将其稀释成稀溶液,加入一定量的拟薄水铝石干粉,搅拌一定时间,将其配置成溶胶；S2、铝溶胶与助剂混合：在催化剂成型之前,将助剂与溶胶混合,形成混悬液；本发明结构科学合理,使用安全方便,结构助剂整体都为无机药剂,热稳定性好,结构助剂中的粘结剂为液体状态,有利于其与粉末药剂混合,整体强度高,粘结剂与助剂分离,根据需求配制成悬液,配制过程方便、安全,粘结剂稳定性好,配制好后可放置数月不改变性质,铝溶胶经高温烧结后可形成较高的比表面积,有利于催化剂有效组分的分散。(The invention discloses a preparation method of a structural auxiliary agent for molding, which comprises the following steps: s1, preparing aluminum sol: diluting a certain amount of acetic acid into a dilute solution, adding a certain amount of pseudo-boehmite dry powder, stirring for a certain time, and preparing into sol; s2, mixing the aluminum sol and the auxiliary agent: before the catalyst is formed, mixing an auxiliary agent with the sol to form a suspension; the invention has scientific and reasonable structure, safe and convenient use, the whole structure auxiliary agent is an inorganic medicament, the thermal stability is good, the binder in the structure auxiliary agent is in a liquid state, the mixing of the binder and the powder medicament is facilitated, the integral strength is high, the binder is separated from the auxiliary agent, the suspension is prepared according to the requirement, the preparation process is convenient and safe, the stability of the binder is good, the property of the binder can not be changed after the suspension is prepared for a plurality of months, the alumina sol can form a higher specific surface area after being sintered at high temperature, and the dispersion of the effective components of the catalyst is facilitated.)

1. A preparation method of a structural auxiliary agent for molding is characterized by comprising the following steps: the method comprises the following steps:

s1, preparing aluminum sol: diluting a certain amount of acetic acid into a dilute solution, adding a certain amount of pseudo-boehmite dry powder, stirring for a certain time, and preparing into sol;

s2, mixing the aluminum sol and the auxiliary agent: before the catalyst is formed, mixing an auxiliary agent with the sol to form a suspension;

s3, mixing a structural assistant and a powdery catalyst: mixing the structural assistant and the powder to be molded into a uniform shape;

and S4, adjusting the ratio of the structural assistant to the powder according to actual requirements.

2. The method for preparing the forming structural assistant according to claim 1, wherein the concentration of the dilute solution in the S1 is 1-3%, and the solid content of the sol is 1-6%.

3. The method for preparing a molding composition aid according to claim 1, wherein the temperature in S1 is preferably 75 to 85 ℃.

4. The method for preparing a structural assistant for molding according to claim 1, wherein the assistant in S2 is one or more of bentonite, zeolite powder and diatomite.

5. The method for preparing the structural assistant for molding according to claim 4, wherein the mass ratio of the assistant to the sol is 5-20%.

6. The method for preparing a molding aid according to claim 1, wherein the shape of S3 is a cake or block.

7. The method for preparing a structural assistant for molding according to claim 1, wherein the mass ratio of the structural assistant to the powder preparation in S4 is in the range of 10% to 50%.

Technical Field

The invention relates to the technical field of preparation of structural assistants, in particular to a preparation method of a structural assistant for molding.

Background

The common natural inorganic binders such as clay and the like are small in specific surface area and low in viscosity, and excessive addition of the common natural inorganic binders causes reduction of the use efficiency of the catalyst.

Disclosure of Invention

The invention provides a preparation method of a structural auxiliary agent for molding, which can effectively solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a preparation method of a forming structural assistant comprises the following steps:

s1, preparing aluminum sol: diluting a certain amount of acetic acid into a dilute solution, adding a certain amount of pseudo-boehmite dry powder, stirring for a certain time, and preparing into sol;

s2, mixing the aluminum sol and the auxiliary agent: before the catalyst is formed, mixing an auxiliary agent with the sol to form a suspension;

s3, mixing a structural assistant and a powdery catalyst: mixing the structural assistant and the powder to be molded into a uniform shape;

and S4, adjusting the ratio of the structural assistant to the powder according to actual requirements.

According to the technical scheme, the concentration of the dilute solution in the S1 is 1% -3%, and the solid content of the sol is 1% -6%.

According to the technical scheme, the preferable temperature in the S1 is 75-85 ℃.

According to the technical scheme, the auxiliary agent in the S2 refers to one or more of bentonite, zeolite powder and diatomite.

According to the technical scheme, the mass ratio of the auxiliary agent to the sol is 5-20%.

According to the technical scheme, the shape of the S3 is mud cake or block.

According to the technical scheme, the mass ratio of the structural auxiliary agent to the powder medicament in the S4 ranges from 10% to 50%.

Compared with the prior art, the invention has the beneficial effects that: the invention has scientific and reasonable structure and safe and convenient use:

1. the whole structural auxiliary agent is an inorganic agent, and the thermal stability is good.

2. The binder in the structural auxiliary agent is in a liquid state, so that the structural auxiliary agent is favorably mixed with the powder medicament, and the overall strength is high.

3. The adhesive is separated from the auxiliary agent, and is prepared into suspension according to requirements, and the preparation process is convenient and safe.

4. The adhesive has good stability, and the properties of the adhesive can not be changed after being prepared and placed for several months.

5. The alumina sol can form a higher specific surface area after being sintered at high temperature, which is beneficial to the dispersion of the effective components of the catalyst.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic flow diagram of the preparation method of the present invention.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.