CN108727875B - 一种高遮盖氯化法色母级钛白粉的制备方法 - Google Patents

一种高遮盖氯化法色母级钛白粉的制备方法 Download PDF

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CN108727875B
CN108727875B CN201810750199.8A CN201810750199A CN108727875B CN 108727875 B CN108727875 B CN 108727875B CN 201810750199 A CN201810750199 A CN 201810750199A CN 108727875 B CN108727875 B CN 108727875B
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张玉荣
周晓葵
姚恒平
孙润发
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Longbai Sichuan Titanium Co., Ltd
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Abstract

本发明涉及一种高遮盖氯化法色母级钛白粉的制备方法，是由以下步骤组成：1）将氯化法制备钛白粉中经过氧化后的氯化法基料进行打浆，把料浆pH值调节至1‑4；2）酸性料浆进行砂磨，砂磨后加入包膜罐中用碱或碱性盐在20‑120min内调节pH值至6‑8，然后静置陈化，陈化结束后把pH值调节至6.5‑7，得到包膜料浆；3）包膜料浆进行压滤水洗，闪蒸干燥和汽粉，汽粉时用有机硅进行处理，最终得到氯化法色母级钛白粉。本发明实现了铝含量的降低和钛含量的升高，从而有效提高氯化法色母级钛白粉的应用性能。同时，由于无机包膜时，无需加入无机包膜剂，既降低了原料成本，又节约了无机包膜的时间，提高生产效率。

Description

一种高遮盖氯化法色母级钛白粉的制备方法
技术领域
本发明具体涉及一种高遮盖氯化法色母级钛白粉的制备方法，属于钛白粉生产技术领域。
背景技术
二氧化钛，俗称钛白粉，具有高白度、高遮盖、高折射等特点，被广泛的应用在涂料、塑料、层压纸等领域，其生产工艺通常有氯化法和硫酸法两种，不同的应用领域，对钛白粉的要求不同。在塑料领域，由于钛白粉的浓度较低，对钛白粉的遮盖力要求较高。钛白粉中二氧化钛含量对遮盖力大小起到重要作用，在生产色母级钛白粉时，需要进行无机包膜，包膜时加入的铝盐会导致钛白粉中二氧化钛含量的降低。因此，在生产色母级钛白粉时，需要一方面控制粒径大小，另一方面在进行无机包膜的时，尽可能减少包覆量，通常只包覆一层薄薄的铝膜。对于氯化法钛白粉，由于矿源及氯化后经过了精馏提纯工艺，杂质含量少，通常白度优于硫酸法钛白粉。但是氯化法工艺在氧化时，通常需要加入AlCl3，促进晶型的转化，加量一般为1%，这个铝加量也使氯化法钛白粉的耐候性优于硫酸法。但是对于色母级钛白粉，由于后期还需要进行无机包膜，按正常工艺，需要包覆1%的Al2O3，使色母级钛白粉的钛含量低于98%，降低了产品遮盖力。硫酸法钛白粉由于基料的铝含量较低，所以通常色母级钛白粉的Al2O3含量为1.0-1.5%左右，钛含量高于98%。基于上述原因，按照传统工艺生产的氯化法色母级钛白粉遮盖力偏低，在塑料领域中无法发挥最大效果。
发明内容
为解决上述问题，本发明提供了一种高遮盖氯化法色母级钛白粉的制备方法，具体方案为：
一种高遮盖氯化法色母级钛白粉的制备方法，是由以下步骤组成：
1）将氯化法制备钛白粉中经过氧化后的氯化法基料进行打浆，把料浆pH值调节至1-4，得到酸性料浆；
2）步骤1）得到的酸性料浆进行砂磨，砂磨后加入包膜罐中用碱或碱性盐在20-120min内调节pH值至6-8，然后静置陈化30-120min，陈化结束后把pH值调节至6.5-7，得到包膜料浆，所述碱或碱性盐为NaOH、KOH、Na2CO3、K2CO3中的一种或几种；
3）将步骤2）得到的包膜料浆进行压滤水洗，闪蒸干燥和汽粉，汽粉时用有机硅进行处理，最终得到氯化法色母级钛白粉。
进一步的，步骤2）中的碱或碱性盐的浓度为50-200g/L。
本发明结合色母级钛白粉对耐候性要求不高的特点，对氯化法钛白粉进行酸性打浆后再进行无机包膜处理，且在无机包膜处理时不再加入铝盐。一方面通过酸性打浆，让基料中的氧化铝溶解到水中，变成可溶性铝，从而降低基料中的铝含量，酸性打浆时溶解的铝盐作为无机包膜处理时的铝盐，在包膜时不再额外加入铝盐，从而可以通过两步法成功把钛白粉中的铝含量降低到1%，提高遮盖力。另一方面，通过酸性包膜，在钛白粉表面形成一层致密的氧化铝膜，解决了碱性假勃姆石型铝包覆量低时过滤困难的问题。这两个手段的结合，实现了铝含量的降低和钛含量的升高，从而有效提高氯化法色母级钛白粉的遮盖力。同时，由于无机包膜时，无需加入无机包膜剂，既降低了原料成本，又节约了无机包膜的时间，提高生产效率。
具体实施方式
实施例1
氯化法基料从氧化炉出来后，直接进入水中进行打浆，把料浆pH值调节至1，并搅拌10min，然后通过砂磨。砂磨结束后，把料浆泵入带有搅拌的槽中，然后用浓度为200g/L的NaOH在20min内调节pH值至6-8，然后静置陈化120min，陈化结束后把pH值调节至6.5-7。反应结束后，进行压滤水洗，闪蒸干燥和汽粉，汽粉时用有机硅进行处理，最终得到氯化法色母级钛白粉。
实施例2
氯化法基料从氧化炉出来后，直接进入水中进行打浆，把料浆pH值调节至2，并搅拌60min，然后通过砂磨。砂磨结束后，把料浆泵入带有搅拌的槽中，然后用浓度为100g/L的KOH在60min内调节pH值至6-8，然后静置陈化60min，陈化结束后把pH值调节至6.5-7。反应结束后，进行压滤水洗，闪蒸干燥和汽粉，汽粉时用有机硅进行处理，最终得到氯化法色母级钛白粉。
实施例3
氯化法基料从氧化炉出来后，直接进入水中进行打浆，把料浆pH值调节至4，并搅拌120min，然后通过砂磨。砂磨结束后，把料浆泵入带有搅拌的槽中，然后用浓度为50g/L的Na2CO3在120min内调节pH值至6-8，然后静置陈化30min，陈化结束后把pH值调节至6.5-7。反应结束后，进行压滤水洗，闪蒸干燥和汽粉，汽粉时用有机硅进行处理，最终得到氯化法色母级钛白粉。
对比例
按传统工艺，把氯化法基料直接打浆，然后进行砂磨，砂磨结束后，泵入包膜槽中，把料浆pH值调节至8.5-10，然后60分钟内把H2SO4和NaAlO2并流加入到料浆中，其中NaAlO2以Al2O3计总计加入1%，包膜剂加完后陈化60分钟，然后把pH值调节至6-8，陈化60分钟，然后把pH值调至6.5-7。反应结束后，进行压滤水洗，闪蒸干燥和汽粉，汽粉时用有机硅进行处理，最终得到氯化法色母级钛白粉。
对实施例1-3以及对比例的氯化法色母级钛白粉进行铝含量和遮盖力检测。具体结果见下表：
实施例1 实施例2 实施例3 对比例
成品Al<sub>2</sub>O<sub>3</sub>含量 0.91% 0.85% 0.98% 1.89%
1%浓度的钛白粉在PE树脂中的遮盖力 96.5% 96.8% 96.3% 95.4%
从检测结果可以看出，实施例1-3的氯化法色母级钛白粉中氧化铝含量明显低于对比例，遮盖力比对比例有较为明显的提高。其中实施例2得到氯化法色母级钛白粉氧化铝含量最低，且遮盖力指标最好。

Claims (2)

1.一种高遮盖氯化法色母级钛白粉的制备方法，其特征在于，是由以下步骤组成：
1）将氯化法制备钛白粉中经过氧化后的氯化法基料进行打浆，把料浆pH值调节至酸性，得到酸性料浆；
2）步骤1）得到的酸性料浆进行砂磨，砂磨后加入包膜罐中用碱或碱性盐在20-120min内调节pH值至6-8，然后静置陈化30-120min，陈化结束后把pH值调节至6.5-7，得到包膜料浆，所述碱或碱性盐为NaOH、KOH、Na2CO3、K2CO3中的一种或几种；
3）将步骤2）得到的包膜料浆进行压滤水洗，闪蒸干燥和汽粉，汽粉时用有机硅进行处理，最终得到氯化法色母级钛白粉；
所述步骤1）中料浆pH值调节至1-4。
2.根据权利要求1所述的一种高遮盖氯化法色母级钛白粉的制备方法，其特征在于，所述步骤2）中的碱或碱性盐的浓度为50-200g/L。
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CN106009783A (zh) * 2016-05-26 2016-10-12 宜宾天原集团股份有限公司 一种复合包膜氯化法钛白粉的制备方法
CN106947296A (zh) * 2017-04-26 2017-07-14 攀钢集团研究院有限公司 高耐候性钛白粉及其制备方法
CN107655920B (zh) * 2017-11-13 2021-03-02 龙蟒佰利联集团股份有限公司 一种测试氯化法钛白粉无机包膜中氧化铝含量的简易方法

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