阅读说明：本技术 一种以废弃硅铝分子筛为原料的造纸填充料及其制备方法和应用 (It is a kind of using discarded Si-Al molecular sieve as papermaking filler material of raw material and its preparation method and application ) 是由 包红旭 宋泽斌 吕志忠 李良玉 徐晓红 吴洁婷 张欣宇 金楠珣 于 2019-09-05 设计创作，主要内容包括：本发明涉及一种以废弃硅铝分子筛为原料的造纸填充料及其制备方法和应用。属于无机材料制备领域。将废弃硅铝分子筛用水冲洗,洗涤后放入电阻炉中,在400℃条件下煅烧90min,将煅烧后的硅铝分子筛置于研钵中进行研磨,向已研磨的废弃硅铝分子筛中分别加入重质碳酸钙和分散剂,将混合物投加到搅拌机中,在转速为25r/min条件下搅拌时间为20min,得造纸填充料。本发明的造纸填充料粒径更小和颗粒尺寸分布更均匀,能够有效的提高纸张的不透明度和白度,同时还有利于印刷油墨的吸收,改善纸张的印刷效果。(The present invention relates to a kind of using discarded Si-Al molecular sieve as papermaking filler material of raw material and its preparation method and application.Belong to field of inorganic material preparing technology.Discarded Si-Al molecular sieve is rinsed with water, it is put into resistance furnace after washing, 90min is calcined under the conditions of 400 DEG C, calcined Si-Al molecular sieve is placed in mortar and is ground, powdered whiting and dispersing agent are separately added into the discarded Si-Al molecular sieve ground, mixture is added in blender, mixing time is 20min under the conditions of revolving speed is 25r/min, obtains papermaking filler material.Papermaking filler material partial size of the invention is smaller and particle size distribution more evenly, can effectively improve the opacity and whiteness of paper, while also helping the absorption of printing ink, improve the printing effect of paper.)

1. a kind of using discarded Si-Al molecular sieve as the papermaking filler material of raw material, it is characterised in that: the papermaking filler material is by discarding Si-Al molecular sieve, powdered whiting and dispersing agent 900-1100:900-1100:1 in mass ratio are made.

2. papermaking filler material according to claim 1, it is characterised in that: the dispersing agent is Dispex N 40.

3. of any of claims 1 or 2 using discarded Si-Al molecular sieve as the preparation method of the papermaking filler material of raw material, feature exists In: include the following steps: for discarded Si-Al molecular sieve to be rinsed with water, the discarded Si-Al molecular sieve after washing is put into resistance furnace It is calcined, calcined discarded Si-Al molecular sieve, which is placed in mortar, to be ground, dispersing agent and powdered whiting is then added, It is uniformly mixed, obtains papermaking filler material.

4. preparation method according to claim 3, it is characterised in that: calcination temperature is 400 DEG C, calcination time 90min.

5. preparation method according to claim 3, it is characterised in that: calcined discarded Si-Al molecular sieve is placed in mortar Partial size be ground to less than 3mm.

6. of any of claims 1 or 2 preparing the application in paper using discarded Si-Al molecular sieve as the papermaking filler material of raw material.

7. application according to claim 6, which is characterized in that the additional amount of papermaking filler material is the 20- of pulp weight 30%.

Technical field

The invention belongs to field of inorganic material preparing technology, and in particular to a kind of to fill out using discarded Si-Al molecular sieve as the papermaking of raw material Charge and preparation method thereof.

Background technique

A large amount of various molecular sieves are usually used in petrochemical industry and petroleum refining and catalysis factory, for being catalyzed, adsorbing, The technical process such as separation, dehydration, decoloration.Molecular sieve becomes discarded in its application process, due to losing original activity or characteristic Object.The catalyst plant of one medium-scale discharges discarded molecular sieve about 2000~3000t in terms of butt year.So far these waste residues The processing approach for not yet finding economical rationality is stacked as waste material, not only occupies place, but also it is dirty to cause serious environment Dye.And aluminium oxide is rich in molecular sieve, the waste being undoubtedly to resource is stacked as waste material.

For the bulk deposition problem of current discarded molecular sieve, there is an urgent need to research and develop the potential valence of discarded molecular sieve Value makes its recycling, innoxious.

Summary of the invention

In order to solve the above-mentioned technical problem, make the discarded Si-Al molecular sieve recycling stacked, the object of the present invention is to provide It is a kind of using discarded Si-Al molecular sieve as papermaking filler material of raw material and preparation method thereof, obtain discarded Si-Al molecular sieve Effective use, and the opacity of paper can also be improved, improve the printing effect of paper.

Realize technical solution used by above-mentioned purpose of the present invention are as follows: a kind of using discarded Si-Al molecular sieve as the papermaking of raw material Filler material, the papermaking filler material is by discarded Si-Al molecular sieve, powdered whiting and dispersing agent 900-1100:900- in mass ratio 1100:1 is made.

Further, the dispersing agent is Dispex N 40.

It is a kind of using discarded Si-Al molecular sieve as the preparation method of the papermaking filler material of raw material, include the following steps: to discard Si-Al molecular sieve is rinsed with water, and the discarded Si-Al molecular sieve after washing is put into resistance furnace and is calcined, calcined discarded Si-Al molecular sieve is placed in mortar and is ground, and dispersing agent and powdered whiting is then added, is uniformly mixed, obtains papermaking and fill out Charge.

Further, calcination temperature is 400 DEG C, calcination time 90min.

Further, calcined discarded Si-Al molecular sieve, which is placed in mortar, be ground to partial size less than 3mm.

Above-mentioned is preparing the application in paper using discarded Si-Al molecular sieve as the papermaking filler material of raw material.

Further, the additional amount of papermaking filler material is the 20-30% of pulp weight.

The invention has the benefit that

1. papermaking filler material prepared by the present invention has biggish specific surface area and porous sparse structure, is conducive to print The absorption of brush ink improves the printing effect of paper.

2. papermaking filler material prepared by the present invention, strong to the scattering power of light, the opacity of paper is effectively raised.

Detailed description of the invention

Fig. 1 is influence of the dosage of papermaking filler material prepared by the present invention to Paper White Degree.

Fig. 2 is influence of the dosage of papermaking filler material prepared by the present invention to paper opacity.

Fig. 3 is influence of the dosage of papermaking filler material prepared by the present invention to light scattering coefficient.

Embodiment 1

It is a kind of using discarded Si-Al molecular sieve as the preparation method of the papermaking filler material of raw material, include the following steps:

1, Si-Al molecular sieve pretreatment is discarded:

1) discarded Si-Al molecular sieve is rinsed with water；

2) Si-Al molecular sieve after washing is put into resistance furnace, calcines 90min under the conditions of 400 DEG C；

3) calcined Si-Al molecular sieve is placed in mortar and is ground, the partial size of the discarded Si-Al molecular sieve after grinding Size is less than 3mm.

2, preparation is using discarded Si-Al molecular sieve as the papermaking filler material of raw material:

1) powdered whiting (GCC) and dispersing agent (Dispex N are separately added into the discarded Si-Al molecular sieve ground 40) mass ratio for, discarding Si-Al molecular sieve, powdered whiting (GCC) and dispersing agent (Dispex N 40) is 1000:1000:1；

2) mixture is added in blender, mixing time is 20min to get arriving under the conditions of revolving speed is 25r/min Target product is using discarded Si-Al molecular sieve as the papermaking filler material of raw material.