US770963A - Process of bleaching barytes and recovering glauber salt. - Google Patents

Process of bleaching barytes and recovering glauber salt. Download PDF

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Publication number
US770963A
US770963A US18690403A US1903186904A US770963A US 770963 A US770963 A US 770963A US 18690403 A US18690403 A US 18690403A US 1903186904 A US1903186904 A US 1903186904A US 770963 A US770963 A US 770963A
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Prior art keywords
barytes
bleaching
recovering
glauber salt
solution
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US18690403A
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William D Gilman
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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D3/00—Halides of sodium, potassium or alkali metals in general
    • C01D3/14—Purification
    • C01D3/16—Purification by precipitation or adsorption

Definitions

  • the object of the invention is to accomplish the bleaching of barytes by the use of a comparatively inexpensive substance from which a marketable by-product can be recovered.

Description

Patented September 27, 1904.
UNITED STATES PATENT OFFICE.
WILLIAM D. GILMAN, OF SWEETW ATER, TENNESSEE.
PROCESS OF BLEACHING BARYTES AND RECOVERING GLAUBER SALT.
SPECIFICATION forming part of Letters Patent No. 770,963, dated September 27, 1904.
Application filed December 28, 1903.
To all whom it mag concern.-
Be it known that I, WILLIAM D. GILMAN, a citizen of the United States of America, residing at Sweetwater, in the county of Monroe and State of Tennessee, have invented certain new and useful Improvements in Processes of Bleaching Barytes and Recovering Glauber Salt, of which the following is a specification.
The object of the invention is to accomplish the bleaching of barytes by the use of a comparatively inexpensive substance from which a marketable by-product can be recovered.
In carrying out my invention I make a solution of niter-cake, a by-product from the manufacture of nitric and sulfuric acid. To this solution crushed or ground barytes is added and the mixture heated until the iron and other soluble impurities of the ore are dissolved. The solution is run off and hot water added until the ore is properly washed. To the solution run off from this treatment, as well as to the stronger wash-Water, an alkaline solution of sodium, as caustic soda, is added until the solution is alkaline and the iron and heavier impurities are precipitated. It is then allowed to settle, and the clear solution is concentrated by heat, if necessary, run into cool- Serial No. 186,904. (No specimens.)
the byfor 3 the impurities; 4
wash-water an alkaline solution of sodium to 5A precipitate the impurities and leave Grlaubei salt in solution; and finally concentrating the 45 resulting solution and allowing the Glauber salt to crystallize.
In testimony whereof I affix my signature in presence of two witnesses.
WILLIAM D. GILMAN.
Witnesses:
(J. E. YOUNG, G. M. MoKNIeH'r.
US18690403A 1903-12-28 1903-12-28 Process of bleaching barytes and recovering glauber salt. Expired - Lifetime US770963A (en)

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US18690403A US770963A (en) 1903-12-28 1903-12-28 Process of bleaching barytes and recovering glauber salt.

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US18690403A US770963A (en) 1903-12-28 1903-12-28 Process of bleaching barytes and recovering glauber salt.

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2637626A (en) * 1947-07-31 1953-05-05 Borax Cons Ltd Production and separation of anhydrous alkali metal sulfate and boric acid
US2746841A (en) * 1952-07-10 1956-05-22 Borax Cons Ltd Production of boric acid and anhydrous sodium sulfate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2637626A (en) * 1947-07-31 1953-05-05 Borax Cons Ltd Production and separation of anhydrous alkali metal sulfate and boric acid
US2746841A (en) * 1952-07-10 1956-05-22 Borax Cons Ltd Production of boric acid and anhydrous sodium sulfate

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