GB1075594A - The purification of chemical substances by sublimation processes - Google Patents

The purification of chemical substances by sublimation processes

Info

Publication number
GB1075594A
GB1075594A GB1046065A GB1046065A GB1075594A GB 1075594 A GB1075594 A GB 1075594A GB 1046065 A GB1046065 A GB 1046065A GB 1046065 A GB1046065 A GB 1046065A GB 1075594 A GB1075594 A GB 1075594A
Authority
GB
United Kingdom
Prior art keywords
purification
chemical substances
arsenic
sublimation processes
sublimation
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.)
Expired
Application number
GB1046065A
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.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens 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.)
Filing date
Publication date
Application filed by Siemens Schuckertwerke AG, Siemens AG filed Critical Siemens Schuckertwerke AG
Publication of GB1075594A publication Critical patent/GB1075594A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D7/00—Sublimation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

Gallium arsenide of specified properties is prepared by conventional methods from arsenic which, after sublimation in a stream of hydrogen is further sublimed by passage in vapour form over an initial condensation surface of the same nature as an impurity in the arsenic and then by passage to a final condensation surface not of the same nature as the pure arsenic (see Division B1).
GB1046065A 1964-03-14 1965-03-11 The purification of chemical substances by sublimation processes Expired GB1075594A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1964S0090025 DE1519861A1 (en) 1964-03-14 1964-03-14 Pure representation of elements and compounds by sublimation

Publications (1)

Publication Number Publication Date
GB1075594A true GB1075594A (en) 1967-07-12

Family

ID=7515500

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1046065A Expired GB1075594A (en) 1964-03-14 1965-03-11 The purification of chemical substances by sublimation processes

Country Status (4)

Country Link
BE (1) BE661023A (en)
DE (1) DE1519861A1 (en)
FR (1) FR1427409A (en)
GB (1) GB1075594A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0153525A1 (en) * 1984-02-17 1985-09-04 Stauffer Chemical Company Pnictide trap for vacuum systems
CN109646987A (en) * 2019-01-10 2019-04-19 合肥欧莱迪光电技术有限公司 A kind of continuous feeding and discharging high vacuum small organic molecule purification special equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0153525A1 (en) * 1984-02-17 1985-09-04 Stauffer Chemical Company Pnictide trap for vacuum systems
CN109646987A (en) * 2019-01-10 2019-04-19 合肥欧莱迪光电技术有限公司 A kind of continuous feeding and discharging high vacuum small organic molecule purification special equipment
CN109646987B (en) * 2019-01-10 2024-03-26 合肥百思智能装备有限公司 Continuous feeding and discharging high-vacuum organic micromolecule purifying special equipment

Also Published As

Publication number Publication date
FR1427409A (en) 1966-02-04
BE661023A (en) 1965-07-01
DE1519861A1 (en) 1970-10-22

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