CN110170296A - 一种去除氟化氢气体中水分子的吸附剂的制备方法 - Google Patents

一种去除氟化氢气体中水分子的吸附剂的制备方法 Download PDF

Info

Publication number
CN110170296A
CN110170296A CN201910328241.1A CN201910328241A CN110170296A CN 110170296 A CN110170296 A CN 110170296A CN 201910328241 A CN201910328241 A CN 201910328241A CN 110170296 A CN110170296 A CN 110170296A
Authority
CN
China
Prior art keywords
adsorbent
fluoride
hydrone
fluorine
preparation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910328241.1A
Other languages
English (en)
Inventor
陈刚
叶向荣
王海
贺辉龙
赵晓亚
程文海
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEJIANG KAISN FLUOROCHEMICAL CO Ltd
Original Assignee
ZHEJIANG KAISN FLUOROCHEMICAL CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZHEJIANG KAISN FLUOROCHEMICAL CO Ltd filed Critical ZHEJIANG KAISN FLUOROCHEMICAL CO Ltd
Publication of CN110170296A publication Critical patent/CN110170296A/zh
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26Drying gases or vapours
    • B01D53/261Drying gases or vapours by adsorption
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26Drying gases or vapours
    • B01D53/28Selection of materials for use as drying agents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/81Solid phase processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/0203Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
    • B01J20/0211Compounds of Ti, Zr, Hf
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/0203Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
    • B01J20/0225Compounds of Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt
    • B01J20/0229Compounds of Fe
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/0203Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
    • B01J20/0248Compounds of B, Al, Ga, In, Tl
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/0203Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
    • B01J20/0274Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04 characterised by the type of anion
    • B01J20/0288Halides of compounds other than those provided for in B01J20/046
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/04Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
    • B01J20/046Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium containing halogens, e.g. halides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28002Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
    • B01J20/28011Other properties, e.g. density, crush strength
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28054Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J20/28057Surface area, e.g. B.E.T specific surface area
    • B01J20/28064Surface area, e.g. B.E.T specific surface area being in the range 500-1000 m2/g
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B7/00Halogens; Halogen acids
    • C01B7/19Fluorine; Hydrogen fluoride
    • C01B7/191Hydrogen fluoride
    • C01B7/195Separation; Purification
    • C01B7/197Separation; Purification by adsorption
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/80Water

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

本发明公开了一种去除氟化氢气体中水分子的吸附剂的制备方法,包括:(1)按重量份数,将0.1~2份碱金属氟化物或碱土金属氟化物、3.5~5.5份金属氟化物和0.05~0.5份碱金属氟氢化物加入超纯水中,经搅拌、干燥后,得到含氟复盐颗粒成型体;(2)将含氟复盐颗粒成型体在500~900℃烧结10~120min,得到烧结后的含氟复盐颗粒成型体;(3)将烧结后的含氟复盐颗粒成型体经球磨得到吸附剂产品。本发明具有工艺简单,成本低,绿色环保,产品性能好的优点。

Description

一种去除氟化氢气体中水分子的吸附剂的制备方法
技术领域
本发明涉及分离气体中水分子的吸附剂,特别涉及一种去除氟化氢气体中水分子的吸附剂的制备方法。
背景技术
工业上生产氟化氢(HF)是通过加热萤石(氟化钙)和硫酸反应得到,主要杂质(包括水)通常是通过分级蒸馏而去除的,所得氟化氢的纯度可达99.8%以上,然而,这样制备的氟化氢气体中水分仍有5-1000ppm,无法应用于半导体制造干法刻蚀工艺中。在氟化氢的电子工业应用中,氟化氢中水分的存在对集成电路的成品率、电性能及可靠性都有着巨大的影响。因此,必须对氟化氢中水分进行进一步的去除,才能应用于电子工业中。
对于氟化氢气体中水分的进一步去除,现有的方法主要有氟气接触反应后蒸馏除水法、活性炭吸附法、碳分子筛吸附法、碳酰氟反应除水法、负载氟化镁的活性炭吸附法等。
如中国专利公开号CN101346303A公开了一种通过水与碳酰氟的化学反应,来达到除去水分的目的。不足之处是该工艺在降低水分的同时引入了CO2和其它杂质。
美国专利US5597545公开了一种通过碳分子筛吸附氟化氢中水分的方法,该方法包括:(1)将流体与碳分子筛接触,使得活性炭分子筛吸附水和HF;(2)加热所述碳分子筛,在高于接触的温度下解析水和HF直到被吸附的水被除去;(3)加热所述碳分子筛,在比步骤(2)高的温度下解析氟化氢;(4)分别回收解析出的水和HF。该专利通过碳分子筛先吸附水和HF,再通过不同温度下的解析,分别得到水和HF。不足之处是操作繁琐,除水效率低,成本高。
美国专利US6221132公开了一种用负载卤化镁的活性炭作为吸附剂吸附水的方法,该方法包括,将含水分的氟化氢气流送经包含5-35%氟化镁吸附剂,该吸附剂被负载于活性碳基材上以通过吸附的方式除水,该方法能将氟化氢气体水分降低至1ppm。不足之处是除水效率低,成本高。
发明内容
针对现有技术中存在的缺陷,本发明的目的在于提供一种工艺简单,成本低,绿色环保,产品性能好的去除氟化氢气体中水分子的吸附剂的制备方法。
为了实现上述目的,本发明采用的技术方案为:一种去除氟化氢气体中水分子的吸附剂的制备方法,包括如下步骤:
(1)按重量份数,将0.1~2份碱金属氟化物或碱土金属氟化物、3.5~5.5份金属氟化物和0.05~0.5份碱金属氟氢化物加入超纯水中,经搅拌、干燥后,得到含氟复盐颗粒成型体;
(2)将步骤(1)得到的含氟复盐颗粒成型体烧结,得到烧结后的含氟复盐颗粒成型体;
(3)将步骤(2)得到的烧结后的含氟复盐颗粒成型体经球磨得到吸附剂产品。
作为本发明的优选实施方式,步骤(1)中所述的碱金属氟化物优选为氟化钾或氟化钠。
作为本发明的优选实施方式,步骤(1)中所述的碱土金属氟化物优选为氟化钙或氟化锶。
作为本发明的优选实施方式,步骤(1)中所述的金属氟化物优选为氟化钛、氟化铁、氟化锆、氟化铝中的一种。
作为本发明的优选实施方式,步骤(1)中所述的碱金属氟氢化物优选为氟氢化钾或氟氢化钠。
作为本发明的优选实施方式,步骤(1)中所述的超纯水的用量优选为碱金属氟化物或碱土金属氟化物和金属氟化物总质量的20~30%。
作为本发明的优选实施方式,步骤(1)中所述的搅拌的转速优选为300~500rpm,搅拌的时间优选为5~20min。
作为本发明的优选实施方式,步骤(1)中所述的干燥的温度优选为70~80℃,干燥的时间优选为30~50min。
作为本发明的优选实施方式,步骤(2)中所述的烧结的温度优选为500~900℃,烧结的时间优选为10~120min。
作为本发明的优选实施方式,步骤(3)中所述的吸附剂产品的平均粒径优选为50-2000μm。
本发明中所述的超纯水的电导率≥18·MΩ·cm(25℃)。
本发明中适合的碱金属氟化物包括氟化锂、氟化钾、氟化钠、氟化铯等,优选为氟化钾或氟化钠;适合的碱土金属氟化物包括氟化钡、氟化钙、氟化镁、氟化锶等,优选为氟化钙或氟化锶。
本发明中可采用通式为MFy的金属氟化物,其中,y>0,M为Ti、Hf、Ta、Zr、Al、As、Co、Mn、Fe、Ni、V中的一种。所述金属氟化物优选为氟化钛、氟化铁、氟化锆、氟化铝中的一种。
本发明中,上述各种碱金属氟化物、碱土金属氟化物及金属氟化物作为主要成份制备得到的含氟复盐对氟化氢气体中水分的吸附能力强,选择性高,解吸方便,而且原料便宜易得。
本发明中,为了提高含氟复盐成型后的比表面积及机械强度,含氟复盐颗粒制备过程中可以添加碱金属氟氢化物,在含氟复盐烘干过程中碱金属氟氢化物会分解,放出氟化氢,从而增加含氟复盐的孔隙度,形成孔隙通道结构,从而提高含氟复盐比表面积,增大孔容,并能增高其机械强度。本发明中,碱金属氟氢化物优选为氟氢化钾或氟氢化钠。
本发明中,含氟复盐制备过程中物料粉碎可采用球磨机或其它粉碎设备,所制含氟复盐的形状一般为球型颗粒或圆柱体颗粒,经球磨后含氟复盐颗粒的平均粒径优选为50-500μm。
本发明制得的吸附剂,对水分有较强的选择吸附性,这种吸附不仅有物理吸附,而且还有吸附剂中含氟复盐对水分子化学吸附作用,吸附后,吸附剂中含氟复盐与水分子形成一种具有不同克分子比的化学复合物即含水氟盐(AxMFy·nH2O,其中A为碱金属或碱土金属元素中的一种,M为Ti、Hf、Ta、Zr、Al、As、Co、Mn、Fe、Ni、V中的一种;x>0;y>0),含水氟盐在一定温度下会分解放出H2O。表示式如下所示:
AxMFy·nH2O→AxMFy+nH2O
通过以上反应原理,采用吸附、解吸循环来达到回收吸附剂的目的。
本发明得到的吸附剂用于去除氟化氢气体中水分子时,将制备好的吸附剂填充于吸附塔内,氟化氢气体通过负载有吸附剂的吸附塔,氟化氢气体中水分子通过吸附剂的选择性吸附而去除,从而水分子被截留。
与现有技术相比,本发明的优点在于:
1、产品除水效率高,本发明得到的吸附剂产品中含氟复盐颗粒化学结构稳定,不会引入新的杂质,对氟化氢气体中水分子的吸附率和选择性高,处理后氟化氢气体中水分含量在0.5ppm以下,所得的高纯度氟化氢能够应用于显示面板和超大规模集成电路等行业。
2、产品除水成本低,本发明得到的吸附剂产品对水分有较强的选择吸附性截留,这种吸附不仅有物理吸附,而且还有含氟复盐对水分子的化学吸附作用,吸附后,吸附剂中含氟复盐与水分子形成一种具有不同克分子比的化学复合物即含水氟盐,含水氟盐在一定温度下会分解放出H2O,可通过采用吸附、解吸循环来达到回收吸附剂的目的,显著降低了除水成本。
3、产品比表面积大,机械强度高,本发明得到的吸附剂产品中含有的碱金属氟氢化物在烘干过程中会分解,放出氟化氢,增加吸附剂产品的孔隙度,形成孔隙通道结构,从而显著提高吸附剂产品比表面积,增大孔容,并能增大其机械强度,本发明得到的吸附剂产品比表面积在810m2/kg以上。
4、工艺简单,成本低,绿色环保,本发明生产原料易得,反应条件温和,显著降低了生产成本。
具体实施方式
以下通过实施例对本发明的技术方案进行进一步详细描述,但本发明并不仅限于以下实施例。
实施例1:(1)称取0.2公斤氟化钾粉粒和5.0公斤氟化钛粉粒,加入1200克超纯水和250克氟氢化钠,在300rpm搅拌转速下混合20min后,于70℃下干燥50min,得到含氟复盐颗粒成型体;
(2)将步骤(1)得到的含氟复盐颗粒成型体在550℃中保温60min进行烧结,得到烧结后的含氟复盐颗粒成型体;
(3)将步骤(2)得到的烧结后的含氟复盐颗粒成型体经球磨得到平均粒径为1200μm的吸附剂产品。
实施例2:(1)称取0.5公斤氟化钾粉粒和5.5公斤氟化钛粉粒,加入1300克超纯水和150克氟氢化钠,在350rpm搅拌转速下混合15min后,于72℃下干燥45min,得到含氟复盐颗粒成型体;
(2)将步骤(1)得到的含氟复盐颗粒成型体在650℃中保温100min进行烧结,得到烧结后的含氟复盐颗粒成型体;
(3)将步骤(2)得到的烧结后的含氟复盐颗粒成型体经球磨得到平均粒径为600μm的吸附剂产品。
实施例3:(1)称取0.8公斤氟化钠粉粒和4.5公斤氟化铁粉粒,加入1400克超纯水和500克氟氢化钾,在400rpm搅拌转速下混合10min后,于75℃下干燥40min,得到含氟复盐颗粒成型体;
(2)将步骤(1)得到的含氟复盐颗粒成型体在750℃中保温20min进行烧结,得到烧结后的含氟复盐颗粒成型体;
(3)将步骤(2)得到的烧结后的含氟复盐颗粒成型体经球磨得到平均粒径为300μm的吸附剂产品。
实施例4:(1)称取1.5公斤氟化钙粉粒和3.5公斤氟化锆粉粒,加入1500克超纯水和300克氟氢化钾,在450rpm搅拌转速下混合10min后,于78℃下干燥35min,得到含氟复盐颗粒成型体;
(2)将步骤(1)得到的含氟复盐颗粒成型体在900℃中保温10min进行烧结,得到烧结后的含氟复盐颗粒成型体;
(3)将步骤(2)得到的烧结后的含氟复盐颗粒成型体经球磨得到平均粒径为1500μm的吸附剂产品。
实施例5:(1)称取2.0公斤氟化锶粉粒和5.0公斤氟化铝粉粒,加入1800克超纯水和50克氟氢化钾,在500rpm搅拌转速下混合5min后,于80℃下干燥30min,得到含氟复盐颗粒成型体;
(2)将步骤(1)得到的含氟复盐颗粒成型体在800℃中保温20min进行烧结,得到烧结后的含氟复盐颗粒成型体;
(3)将步骤(2)得到的烧结后的含氟复盐颗粒成型体经球磨得到平均粒径为100μm的吸附剂产品。
性能测试:
将制备好的吸附剂填充于吸附塔内,氟化氢气体通过负载有吸附剂的吸附塔,氟化氢气体中水分子通过吸附剂的选择性吸附而去除,收集处理后的氟化氢气体,取样分析,结果见表1。其中:
氟化氢气体中水分含量测试采用芬兰GASERA干涉公司的痕量级光声多气体仪(型号:F10S)
比表面积测定:按GB/T 19587-2004《气体吸附BET法测定固态物质比表面积》执行。
表1实施例1~5制备得到吸附剂的性能
由表1所列数据可知,实施例1-5制得的吸附剂都能有效脱除氟化氢气体中的水分,其在24h后测量氟化氢样品的水分浓度低于0.5ppm。

Claims (10)

1.一种去除氟化氢气体中水分子的吸附剂的制备方法,其特征在于,包括如下步骤:
(1)按重量份数,将0.1~2份碱金属氟化物或碱土金属氟化物、3.5~5.5份金属氟化物和0.05~0.5份碱金属氟氢化物加入超纯水中,经搅拌、干燥后,得到含氟复盐颗粒成型体;
(2)将步骤(1)得到的含氟复盐颗粒成型体烧结,得到烧结后的含氟复盐颗粒成型体;
(3)将步骤(2)得到的烧结后的含氟复盐颗粒成型体经球磨得到吸附剂产品。
2.根据权利要求1所述的去除氟化氢气体中水分子的吸附剂的制备方法,其特征在于,步骤(1)中所述的碱金属氟化物为氟化钾或氟化钠。
3.根据权利要求1所述的去除氟化氢气体中水分子的吸附剂的制备方法,其特征在于,步骤(1)中所述的碱土金属氟化物为氟化钙或氟化锶。
4.根据权利要求1所述的去除氟化氢气体中水分子的吸附剂的制备方法,其特征在于,步骤(1)中所述的金属氟化物为氟化钛、氟化铁、氟化锆、氟化铝中的一种。
5.根据权利要求1所述的去除氟化氢气体中水分子的吸附剂的制备方法,其特征在于,步骤(1)中所述的碱金属氟氢化物为氟氢化钾或氟氢化钠。
6.根据权利要求1所述的去除氟化氢气体中水分子的吸附剂的制备方法,其特征在于,步骤(1)中所述的超纯水的用量为碱金属氟化物或碱土金属氟化物和金属氟化物总质量的20~30%。
7.根据权利要求1所述的去除氟化氢气体中水分子的吸附剂的制备方法,其特征在于,步骤(1)中所述的搅拌的转速为300~500rpm,搅拌的时间为5~20min。
8.根据权利要求1所述的去除氟化氢气体中水分子的吸附剂的制备方法,其特征在于,步骤(1)中所述的干燥的温度为70~80℃,干燥的时间为30~50min。
9.根据权利要求1所述的去除氟化氢气体中水分子的吸附剂的制备方法,其特征在于,步骤(2)中所述的烧结的温度为500~900℃,烧结的时间为10~120min。
10.根据权利要求1所述的去除氟化氢气体中水分子的吸附剂的制备方法,其特征在于,步骤(3)中所述的吸附剂产品的平均粒径为50-2000μm。
CN201910328241.1A 2018-11-27 2019-04-23 一种去除氟化氢气体中水分子的吸附剂的制备方法 Pending CN110170296A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2018114246950 2018-11-27
CN201811424695 2018-11-27

Publications (1)

Publication Number Publication Date
CN110170296A true CN110170296A (zh) 2019-08-27

Family

ID=67689912

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910328241.1A Pending CN110170296A (zh) 2018-11-27 2019-04-23 一种去除氟化氢气体中水分子的吸附剂的制备方法

Country Status (1)

Country Link
CN (1) CN110170296A (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021208949A1 (zh) * 2020-04-15 2021-10-21 浙江博瑞电子科技有限公司 一种hf电子气体深度纯化材料的制备及应用方法
CN114522660A (zh) * 2022-02-11 2022-05-24 福建德尔科技有限公司 新型改性氟化钠专用吸附剂、制备及应用
CN115487522A (zh) * 2022-09-06 2022-12-20 内蒙古东岳金峰氟化工有限公司 氟化氢提纯系统及工艺

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3976447A (en) * 1973-04-26 1976-08-24 Pennwalt Corporation Removal of hydrogen fluoride from gaseous mixture by absorption on alkaline earth metal fluoride
CN1836771A (zh) * 2005-03-25 2006-09-27 金正义 氟化氢吸附剂及其制法和应用

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3976447A (en) * 1973-04-26 1976-08-24 Pennwalt Corporation Removal of hydrogen fluoride from gaseous mixture by absorption on alkaline earth metal fluoride
CN1836771A (zh) * 2005-03-25 2006-09-27 金正义 氟化氢吸附剂及其制法和应用

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
上海钾盐工程技术研究中心: "《中国钾盐工业概览》", 31 July 2009 *
符德学: "《实用无机化工工艺学》", 30 September 1999 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021208949A1 (zh) * 2020-04-15 2021-10-21 浙江博瑞电子科技有限公司 一种hf电子气体深度纯化材料的制备及应用方法
CN114522660A (zh) * 2022-02-11 2022-05-24 福建德尔科技有限公司 新型改性氟化钠专用吸附剂、制备及应用
CN115487522A (zh) * 2022-09-06 2022-12-20 内蒙古东岳金峰氟化工有限公司 氟化氢提纯系统及工艺

Similar Documents

Publication Publication Date Title
CN110170296A (zh) 一种去除氟化氢气体中水分子的吸附剂的制备方法
CN106698352B (zh) 一种制备高纯氟气或高纯含氟混合气的方法及装置
KR101135159B1 (ko) 저산소 티타늄 분말 제조 방법
KR20120112475A (ko) 질소 함유 다공질 탄소재료와 그 제조방법, 및 상기 질소 함유 다공질 탄소재료를 이용한 전기 이중층 캐패시터
CN106349008B (zh) 一种六氟丁二烯纯化的方法
CN110606490B (zh) 一种高纯四氟化硅的合成及纯化方法
EP3530619A1 (en) Carbonaceous material and method for producing same
CN109569508A (zh) 微孔碳材料分离伴生和非伴生天然气流中的氮
JP2002502314A (ja) 水素を含有するプロセス流から水素汚染物を分離し選択的に除去する方法およびそのために有用な組成物
CN107298454B (zh) 一种利用废弃蒽醌再生剂制备活性氧化铝的方法
CN102863023B (zh) 一种电子级砷烷的合成和提纯方法
CN108821285A (zh) 一种铁基金属盐熔融渗透制备煤基多孔活性碳材料的方法
Lin et al. Influence of the structural and surface characteristics of activated carbon on the catalytic decomposition of hydrogen iodide in the sulfur–iodine cycle for hydrogen production
JP6483477B2 (ja) カルシウム塩の製造方法及び炭素多孔体の製造方法
WO2011046139A1 (ja) フッ素貯蔵装置
CN110152498A (zh) 一种用于去除氟化氢中水分的复合膜的制备方法
CN105217575A (zh) 一种反应精馏去除氟化氢中水分的方法
CN108940181A (zh) 一种钛型锂离子筛吸附剂及应用
Prasad et al. Reactions of sulphur mustard on impregnated carbons
JP2008214187A (ja) フッ化水素の含有量が低減されたフッ化カルボニル及びその製造方法
CN109970509A (zh) 一种工业级六氟乙烷的提纯方法
US11857943B2 (en) Activated carbon and production method thereof
CN106745008A (zh) 一种用于吸附锂的改性sba‑15有序介孔材料及其制备方法
CN109107546B (zh) 茜素红-s螯合形成树脂的合成方法及其应用
JP5847104B2 (ja) 多結晶シリコンの製造方法及び該製造方法に還元剤として用いる水素ガスの製造方法

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20190827

WD01 Invention patent application deemed withdrawn after publication