CA1073183A - Purification de l'acide fluorhydrique - Google Patents

Purification de l'acide fluorhydrique

Info

Publication number: CA1073183A
Authority: CA; Canada
Prior art keywords: h2so4; acid; washing; preliminary; sulphuric acid
Prior art date: 1976-09-30
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.): Expired

Application number

CA262,436A

Other languages

English (en)

Inventor

Bernhard Spreckelmeyer

Werner Schabacher

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.)

Bayer AG

Original Assignee

Bayer AG

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.)

1976-09-30

Filing date

1976-09-30

Publication date

1980-03-11

1976-09-30 Application filed by Bayer AG filed Critical Bayer AG

1976-09-30 Priority to CA262,436A priority Critical patent/CA1073183A/fr

1980-03-11 Application granted granted Critical

1980-03-11 Publication of CA1073183A publication Critical patent/CA1073183A/fr

Status Expired legal-status Critical Current

Links

KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 title claims abstract description 17
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 63
235000011149 sulphuric acid Nutrition 0.000 claims abstract description 61
238000005406 washing Methods 0.000 claims abstract description 49
239000007789 gas Substances 0.000 claims abstract description 44
239000002253 acid Substances 0.000 claims abstract description 41
239000001117 sulphuric acid Substances 0.000 claims abstract description 36
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
238000006243 chemical reaction Methods 0.000 claims abstract description 16
WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims abstract description 15
239000010436 fluorite Substances 0.000 claims abstract description 11
239000012267 brine Substances 0.000 claims abstract description 7
HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims abstract description 7
230000001105 regulatory effect Effects 0.000 claims abstract description 5
238000004519 manufacturing process Methods 0.000 claims abstract description 4
238000000034 method Methods 0.000 claims description 16
230000008569 process Effects 0.000 claims description 15
239000007788 liquid Substances 0.000 description 5
229910052925 anhydrite Inorganic materials 0.000 description 4
229910001634 calcium fluoride Inorganic materials 0.000 description 4
239000000428 dust Substances 0.000 description 4
150000007513 acids Chemical class 0.000 description 3
229910000040 hydrogen fluoride Inorganic materials 0.000 description 3
150000002500 ions Chemical class 0.000 description 3
238000012856 packing Methods 0.000 description 3
238000000746 purification Methods 0.000 description 3
ABTOQLMXBSRXSM-UHFFFAOYSA-N silicon tetrafluoride Chemical compound F[Si](F)(F)F ABTOQLMXBSRXSM-UHFFFAOYSA-N 0.000 description 3
229910003638 H2SiF6 Inorganic materials 0.000 description 2
229910004014 SiF4 Inorganic materials 0.000 description 2
VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
239000007795 chemical reaction product Substances 0.000 description 2
150000001875 compounds Chemical class 0.000 description 2
238000009833 condensation Methods 0.000 description 2
230000005494 condensation Effects 0.000 description 2
238000001816 cooling Methods 0.000 description 2
238000010586 diagram Methods 0.000 description 2
239000012535 impurity Substances 0.000 description 2
238000009434 installation Methods 0.000 description 2
ZEFWRWWINDLIIV-UHFFFAOYSA-N tetrafluorosilane;dihydrofluoride Chemical compound F.F.F[Si](F)(F)F ZEFWRWWINDLIIV-UHFFFAOYSA-N 0.000 description 2
101100353161 Drosophila melanogaster prel gene Proteins 0.000 description 1
101100384355 Mus musculus Ctnnbip1 gene Proteins 0.000 description 1
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
230000008901 benefit Effects 0.000 description 1
230000015572 biosynthetic process Effects 0.000 description 1
229910000019 calcium carbonate Inorganic materials 0.000 description 1
239000001175 calcium sulphate Substances 0.000 description 1
235000011132 calcium sulphate Nutrition 0.000 description 1
229910052681 coesite Inorganic materials 0.000 description 1
229910052906 cristobalite Inorganic materials 0.000 description 1
239000000727 fraction Substances 0.000 description 1
239000011261 inert gas Substances 0.000 description 1
JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
238000002156 mixing Methods 0.000 description 1
238000012986 modification Methods 0.000 description 1
230000004048 modification Effects 0.000 description 1
239000001301 oxygen Substances 0.000 description 1
229910052760 oxygen Inorganic materials 0.000 description 1
239000002245 particle Substances 0.000 description 1
239000000376 reactant Substances 0.000 description 1
230000036647 reaction Effects 0.000 description 1
230000008439 repair process Effects 0.000 description 1
239000000377 silicon dioxide Substances 0.000 description 1
235000012239 silicon dioxide Nutrition 0.000 description 1
239000007858 starting material Substances 0.000 description 1
229910052682 stishovite Inorganic materials 0.000 description 1
229910052905 tridymite Inorganic materials 0.000 description 1
239000002912 waste gas Substances 0.000 description 1

Landscapes

Cleaning Or Drying Semiconductors (AREA)

CA262,436A 1976-09-30 1976-09-30 Purification de l'acide fluorhydrique Expired CA1073183A (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
CA262,436A CA1073183A (fr)	1976-09-30	1976-09-30	Purification de l'acide fluorhydrique

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA262,436A CA1073183A (fr)	1976-09-30	1976-09-30	Purification de l'acide fluorhydrique

Publications (1)

Publication Number	Publication Date
CA1073183A true CA1073183A (fr)	1980-03-11

Family

ID=4106972

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA262,436A Expired CA1073183A (fr)	1976-09-30	1976-09-30	Purification de l'acide fluorhydrique

Country Status (1)

Country	Link
CA (1)	CA1073183A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
RU2287480C1 (ru) *	2005-03-23	2006-11-20	Олег Генрихович Еремин	Способ и установка получения фтористого водорода

1976
- 1976-09-30 CA CA262,436A patent/CA1073183A/fr not_active Expired

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
RU2287480C1 (ru) *	2005-03-23	2006-11-20	Олег Генрихович Еремин	Способ и установка получения фтористого водорода

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Legal Events

Date	Code	Title	Description
1997-03-11	MKEX	Expiry