GB345186A - Process of refining heavy spar - Google Patents

Process of refining heavy spar

Info

Publication number
GB345186A
GB345186A GB22018/30A GB2201830A GB345186A GB 345186 A GB345186 A GB 345186A GB 22018/30 A GB22018/30 A GB 22018/30A GB 2201830 A GB2201830 A GB 2201830A GB 345186 A GB345186 A GB 345186A
Authority
GB
United Kingdom
Prior art keywords
heavy spar
acid
treated
dry
cooling
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
GB22018/30A
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.)
GEA Group AG
Original Assignee
Metallgesellschaft 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 Metallgesellschaft AG filed Critical Metallgesellschaft AG
Publication of GB345186A publication Critical patent/GB345186A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/02—Compounds of alkaline earth metals or magnesium
    • C09C1/027—Barium sulfates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

Raw heavy spar, if desired, after separation of quartz, shale, &c., is calcined at a high temperature, as 800 DEG -1200 DEG C., whereby bitumen is burnt out, and is then treated with an acid, preferably hot hydrochloric acid, with or without the intervention of dry-cooling. This dry-cooling may be effected in shaking troughs indirectly cooled by water. The residue, after washing out most of the acid, may be treated with an alkali, preferably ammonia. The Specification as open to inspection under Sect. 91 (3) (a) comprises also this alkali treatment applied to other processes of refining heavy spar. This subject-matter does not appear in the Specification as accepted.
GB22018/30A 1929-08-28 1930-07-21 Process of refining heavy spar Expired GB345186A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE345186X 1929-08-28

Publications (1)

Publication Number Publication Date
GB345186A true GB345186A (en) 1931-03-19

Family

ID=6254449

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22018/30A Expired GB345186A (en) 1929-08-28 1930-07-21 Process of refining heavy spar

Country Status (1)

Country Link
GB (1) GB345186A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111252794A (en) * 2018-11-30 2020-06-09 卢长生 Purification and whitening process of fine barite powder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111252794A (en) * 2018-11-30 2020-06-09 卢长生 Purification and whitening process of fine barite powder
CN111252794B (en) * 2018-11-30 2022-08-26 卢长生 Purification and whitening process of fine barite powder

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