[go: up one dir, main page]

US66137A - Thomas m - Google Patents

Thomas m Download PDF

Info

Publication number
US66137A
US66137A US66137DA US66137A US 66137 A US66137 A US 66137A US 66137D A US66137D A US 66137DA US 66137 A US66137 A US 66137A
Authority
US
United States
Prior art keywords
lead
chloride
thomas
fell
soda
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 - Lifetime
Application number
Publication date
Application granted granted Critical
Publication of US66137A publication Critical patent/US66137A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G21/00Compounds of lead
    • C01G21/14Carbonates

Definitions

  • the proportion of carbonic acid that we have found to answer well is about twenty-two per cent. of the weight of litharge or oxide of lead used to form the chloride, but it is usual to add the acid until the whole mass'is converted.
  • a supply of the acid may be obtained by the usual method of burning-limestone or marble in a closed store or furnacc,with coke, or by the combustion of any carbonaceous substance, the gas being drawn from the generatorand forced into the pasty chloride by the usual mechanical contrivances.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Description

guitar-glans igatwt @ffirr.
THOMAS M. FELL AND AMBROSE G. FELL, OF BROOKLYN, NEW YORK, ASSIGNORS TO THEMSELVES ANOWILLIAM- BELL, OF NEW YORK, N. Y.
Letters Patent No. 66,137, dated June 25,1867.
IMPBOYEMENT IN THE MANUFACTURE OF WHITE LEAD.
TO ALL WHOM IT MAY CONCERN:
Be it known that wc, THOMAs llLFELL and AMBROSEYG. FELL, both of the city-of Brooklyn, and State of New York, have invented certain new anduseful improvements in the :Manufactnre of White Lead; and do .hereby declare the following to be a full, clear, and exact description thereof Our present improvements consist in treating a chloride or oxychl'oride of lead in the manner hereinafter described, thereby producing a'superior white lead or carbonate of lead,-to be used as a pigment.
We take a chloride of lead, for instance, the one described in Letters Patent heretofore granted to us on the eleventh day of April, 1867, and before drawing oil the soda from such chloride, or oxychloride of lead, reduce the mass into a thin paste by stirring, adding water to thin it still further, if necessary, then force into it carbonic acid gas, ivhich causes a double action, namely, the carbonic acid unites with the soda, forming bicarbonate of soda, then this bicarbonate of soda reacts on the chlori'de'of lead, forming carbonate of lead and chloride of sodium. The productrthen is well washed in order to free it from the chloride of sodium, and is afterwards dried in the same way as practised with ordinary white lead.
The proportion of carbonic acid that we have found to answer well is about twenty-two per cent. of the weight of litharge or oxide of lead used to form the chloride, but it is usual to add the acid until the whole mass'is converted. A supply of the acid, may be obtained by the usual method of burning-limestone or marble in a closed store or furnacc,with coke, or by the combustion of any carbonaceous substance, the gas being drawn from the generatorand forced into the pasty chloride by the usual mechanical contrivances.
What we claim as new in the.rnanufacture of white lead, and desire to secure by Letters -Patent, is-
The treatment of chloride of lead in the manner and for-the purpose substantially as herein described.
THOMAS M. FELL,
l AMBROSE G. FELL,
" Witnesses:
WM. H. Brsnor, I A. DE LACY.
US66137D Thomas m Expired - Lifetime US66137A (en)

Publications (1)

Publication Number Publication Date
US66137A true US66137A (en) 1867-06-25

Family

ID=2135663

Family Applications (1)

Application Number Title Priority Date Filing Date
US66137D Expired - Lifetime US66137A (en) Thomas m

Country Status (1)

Country Link
US (1) US66137A (en)

Similar Documents

Publication Publication Date Title
US66137A (en) Thomas m
US100945A (en) Improvement in the manufacture of artificial stone
US59239A (en) Improvement in the manufacture of sulpho-acetate of alumina
US85796A (en) Improved method of producing- white pigments from lead
US1316107A (en) Basic sulfate of zirconium and method of making the same.
US1166547A (en) Method of obtaining titanic oxid and the resulting product.
US70990A (en) Improvement in the manufacture of white lead
US1866775A (en) Process for the production of zinc hydrocarbonate
US83357A (en) Nathan baetlett
US2134528A (en) Treatment of lead bearing cres and the preparation of compounds therefrom
US1317165A (en) Anton p
US66138A (en) Improvement in the manufaotube of white lead
US131297A (en) Improvement in coloring compounds, or bremen blue
US838769A (en) Method of formation of a lithopone having a sulfite of baryta base.
US1169253A (en) Pigment and process of making the same.
US85258A (en) Improved method of extracting- gold and silver from their ores
US52144A (en) Improvement in the manufacture of white lead
US62128A (en) Improved composition galled
US3689214A (en) Process for the preparation of alkali metal trichromates me i cr308
US53583A (en) Improvement in the manufacture of white lead
US86513A (en) Improved process for desulphurizing- ores to obtain the precious metals
US45846A (en) Improvement in the manufacture of prussian blue
US66140A (en) Improved mode of treating lead salts for the manufacture of white lead
US59902A (en) Thomas m
US212016A (en) Improvement in the manufacture of white pigments