SU592798A1 - Method of obtaining charge for optical ceramics - Google Patents

Method of obtaining charge for optical ceramics

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Publication number
SU592798A1
SU592798A1 SU762377050A SU2377050A SU592798A1 SU 592798 A1 SU592798 A1 SU 592798A1 SU 762377050 A SU762377050 A SU 762377050A SU 2377050 A SU2377050 A SU 2377050A SU 592798 A1 SU592798 A1 SU 592798A1
Authority
SU
USSR - Soviet Union
Prior art keywords
optical ceramics
obtaining charge
ceramics
obtaining
optical
Prior art date
Application number
SU762377050A
Other languages
Russian (ru)
Inventor
Филипп Карпович Волынец
Эвелина Георгиевна Черневская
Original Assignee
Предприятие П/Я Р-6681
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 Предприятие П/Я Р-6681 filed Critical Предприятие П/Я Р-6681
Priority to SU762377050A priority Critical patent/SU592798A1/en
Application granted granted Critical
Publication of SU592798A1 publication Critical patent/SU592798A1/en

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  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Description

щаетс  путем механического отбора грубых включений при просмотре в естественном и пол ризованном свете и обработки в сол ной и плавиковой кислотах при температуре кипени  предварительно измельченного материала . Природный шпат содержит большое количество газовых и др. микровключений и в отличие от монокристаллов и плава синтетических реактивов может измельчатьс  без истирани  и загр анени  путем термодроблени  и механическо-валкового разрушени . Пример. Плавиковый шпат с месторождени  «Кент отмывали и просматривали в пол ризованном свете дл  отбора двупреломл ющих кристаллов. Отсортированный шпат термодробили: 3-5 кг кристаллов нагревали в 1муфеле до 450°, выдерживали в течение 1 ч и резко охлаждали погружением в воду. Растрескавшиес  кристаллики высушивали и измельчали на валковой дробилке. Мелкокристаллический плавиковый шпат кип тили при перемешивании в сол ной кислоте в течение 1-3 ч, промывали дистиллированной водой и в течение 1-3 ч кип тили в плавиковой кислоте; затем снова отмывали дистиллированной водой и высушивали в термостате при 150- 200° С. Предлагаемый способ получени  шихты дл  оптической керамики из фтористого кальци  позвол ет суш,ественно упростить технологический процесс, повысить его эффективность за счет исключени  синтеза фтористого кальци  и последующего двукратного высокотемпературного его обогаш,ени  в атмосфере фтористого водорода. Ф, ормула изобретени  Способ получени  шихты дл  оптической керамики из фтористого кальци  нутем дроблеии , кислородного Обогаш,ени , промывки и высушивани , отличающийс  тем, что с целью упрощени  и повышени  эффективности процесса, в качестве исходного мате-риала используют плавиковый шпат, который последовательно подвергают термодроблени1с с температурным перепадом от 300-500 до О-30° С и механическому дроблению, а обогащение ведут последовательно в разбавленном растворе сол ной кислоты и растворе фтористого водорода в течение 1-5 ч при температуре кипени . Источники информации, прин тые во внимание при экспертизе: 1.Патент Великобритании Яе 91317, кл. С 01, 1960. 2.Патент США jY 3453215,, кл. 252-301,This is done by mechanically selecting coarse inclusions when viewed in natural and polarized light and treated in hydrochloric and hydrofluoric acids at the boiling point of the pre-ground material. Natural spar contains a large amount of gas and other micro-inclusions and, unlike single crystals and melted synthetic reagents, can be crushed without abrasion and contamination by thermal shattering and mechanical roll destruction. Example. Fluorspar from the Kent deposit was washed and viewed in polarized light to select birefringent crystals. Sorted spar thermodrobes: 3-5 kg of crystals were heated in 1mufele to 450 °, kept for 1 hour and rapidly cooled by immersion in water. The cracked crystals were dried and crushed on a roller crusher. Fine-crystalline fluorspar was boiled under stirring in hydrochloric acid for 1–3 hours, washed with distilled water, and boiled for 1–3 hours in hydrofluoric acid; then again washed with distilled water and dried in a thermostat at 150– 200 ° C. The proposed method for obtaining a blend for optical ceramics from calcium fluoride allows sushi to substantially simplify the process, increase its efficiency by eliminating the synthesis of calcium fluoride and its subsequent two-time high-temperature heat eni in the atmosphere of hydrogen fluoride. Formula of the invention. A method for producing a mixture for calcium-fluoride optical ceramics, crushed stone, oxygen dressing, washing, and drying, characterized in that, in order to simplify and increase the efficiency of the process, fluorspar is used as the starting material, which is subsequently subjected to thermal fracturing with a temperature difference of 300-500 to -30 ° C and mechanical crushing, and enrichment is carried out successively in a dilute hydrochloric acid solution and hydrogen fluoride solution for 1-5 hours and reflux temperature. Sources of information taken into account in the examination: 1. UK Patent No. 91317, cl. Since 01, 1960. 2. US patent jY 3453215 ,, cl. 252-301,

SU762377050A 1976-06-28 1976-06-28 Method of obtaining charge for optical ceramics SU592798A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU762377050A SU592798A1 (en) 1976-06-28 1976-06-28 Method of obtaining charge for optical ceramics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU762377050A SU592798A1 (en) 1976-06-28 1976-06-28 Method of obtaining charge for optical ceramics

Publications (1)

Publication Number Publication Date
SU592798A1 true SU592798A1 (en) 1978-02-15

Family

ID=20667296

Family Applications (1)

Application Number Title Priority Date Filing Date
SU762377050A SU592798A1 (en) 1976-06-28 1976-06-28 Method of obtaining charge for optical ceramics

Country Status (1)

Country Link
SU (1) SU592798A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014004445A1 (en) * 2012-06-25 2014-01-03 Silicor Materials Inc. Method of purifying calcium fluoride

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014004445A1 (en) * 2012-06-25 2014-01-03 Silicor Materials Inc. Method of purifying calcium fluoride
CN104470854A (en) * 2012-06-25 2015-03-25 希利柯尔材料股份有限公司 Method of purifying calcium fluoride

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