US109125A - Improvement in the manufacture of white lead - Google Patents
Improvement in the manufacture of white lead Download PDFInfo
- Publication number
- US109125A US109125A US109125DA US109125A US 109125 A US109125 A US 109125A US 109125D A US109125D A US 109125DA US 109125 A US109125 A US 109125A
- Authority
- US
- United States
- Prior art keywords
- lead
- acetic acid
- gas
- manufacture
- improvement
- 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
Links
- 229910000004 White lead Inorganic materials 0.000 title description 14
- 238000004519 manufacturing process Methods 0.000 title description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 90
- 229960000583 Acetic Acid Drugs 0.000 description 30
- 235000011054 acetic acid Nutrition 0.000 description 30
- 238000005507 spraying Methods 0.000 description 18
- 239000007921 spray Substances 0.000 description 8
- 239000002253 acid Substances 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 235000011089 carbon dioxide Nutrition 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000003595 mist Substances 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 2
- 235000004789 Rosa xanthina Nutrition 0.000 description 2
- 241000109329 Rosa xanthina Species 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
Images
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
- C09C1/14—Compounds of lead
- C09C1/16—White lead
Definitions
- ROBERT F. HATFIELD OF NEW YORK, N. Y., ASSIGNOR TO HANNEN LEAD COMPANY, OF SAME PLACE.
- This invention relates to those methods of manufacturing white lead in which the comininuted lead is deposited in gas-tight chambers, and therein submitted to the action of acetic acid and carbonic-acid gas.
- My improvement consists in spraying the acetic acid by means of an air or gas jet, substantially as hereinafter described.
- Figure 1 shows one form of a portable apparatus which may be employed for spraying the acetic acid.
- Fig. 2 shows a method of illjecting the aceticacid spray upon the lead without opening the lead-chamber.
- A, Fig. 1 is a portable vessel containing the acetic acid, from which rises a vertical tube, B, at the orifice of which, set horizontally, is an air or gas tube, 0.
- the rear part of the tube 0 is provided with a flexible hose-pipe, D, which communicates with an air or gas pump, or reservoir containing compressed air or compressed gas.
- the lead may be quickly bathed with a fine spray of acetic acid, which, owing to its light and vaporized condition, will penetrate the lead mass and quickly reach all its exposed parts.
- the pipes 13 O are passed through the partition E of such chambers F, where the lead is arranged on shelves, in the usual manner, as shown in Fig. 2.
- the pipes O D may be made movable, if desired, so as to change the direction of the injection at will.
- the carbonic-acid gas required to convert the lead may be used to produce the spraying of the acetic acid, the gas being driven through the pipe 0, as above described, and the said gas, or any other gas or air used for the purpose of spraying, may be heated to the desired temperature before it is passed through the pipe 0. Two o1 erations-that of spraying and ofsupplyin g the necessary carbonic-acid gasmay be thus simultaneously carried on.
- the acetic acid maybe heated before spraying to any desired temperature.
- anyother liquid chemical substances or solutions may be sprayed or vaporized and applied to the lead or within the lead chamber, as hereinbefore described.
Description
a. F. HATFIELD.
Making White Lead.
No. 109,125. Patnted Nov. 8, 1870.
N. PETERS Phntoinlmnnuher. Washhlpton, D. L
I l HI Min 5555 gm 2 I @whu ram 5x5 IT STATES PATENT DFFICE.
ROBERT F. HATFIELD, OF NEW YORK, N. Y., ASSIGNOR TO HANNEN LEAD COMPANY, OF SAME PLACE.
IMPROVEMENT IN THE MANUFACTURE OF WHITE LEAD.
Specification forming part of Letters Patent No. 109.125, dated November 8, 1870.
To all whom it may concern:
Be it known that I, ROBERT F. HATFIELD,
of the city of New York, in the county and State of New York, have invented new and useful Improvements in the Manufacture of White Lead; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same,reference being had to the accompanying drawing, forming part of this specification. This invention relates to those methods of manufacturing white lead in which the comininuted lead is deposited in gas-tight chambers, and therein submitted to the action of acetic acid and carbonic-acid gas.
Difficulties have been heretofore experienced in properly treating the lead with the acetic acid. The ordinary method is to sprinkle the acid upon the lead by means of perforated pipes or roses; but this method is faulty, as the acid is not divided with sufficient fineness, and it is impossible to make it penetrate every portion of the lead piles or drive it into contact with all parts of the lead surfaces.
My improvement consists in spraying the acetic acid by means of an air or gas jet, substantially as hereinafter described.
Figure 1 shows one form of a portable apparatus which may be employed for spraying the acetic acid. Fig. 2 shows a method of illjecting the aceticacid spray upon the lead without opening the lead-chamber.
Similar letters of reference indicate corresponding parts.
A, Fig. 1, is a portable vessel containing the acetic acid, from which rises a vertical tube, B, at the orifice of which, set horizontally, is an air or gas tube, 0. The rear part of the tube 0 is provided with a flexible hose-pipe, D, which communicates with an air or gas pump, or reservoir containing compressed air or compressed gas.
When a strong current of air or gas is blown through tube 0 it causes the acetic acid to rise in tube B, and discharges the acid in the direction of the arrow in the form of a fine mist or spray.
By means of this instrument the lead may be quickly bathed with a fine spray of acetic acid, which, owing to its light and vaporized condition, will penetrate the lead mass and quickly reach all its exposed parts.
When it is desired to inject the acid-spray without opening the leadchamber, the pipes 13 O are passed through the partition E of such chambers F, where the lead is arranged on shelves, in the usual manner, as shown in Fig. 2.
The pipes O D may be made movable, if desired, so as to change the direction of the injection at will.
The carbonic-acid gas required to convert the lead may be used to produce the spraying of the acetic acid, the gas being driven through the pipe 0, as above described, and the said gas, or any other gas or air used for the purpose of spraying, may be heated to the desired temperature before it is passed through the pipe 0. Two o1 erations-that of spraying and ofsupplyin g the necessary carbonic-acid gasmay be thus simultaneously carried on.
The acetic acid maybe heated before spraying to any desired temperature.
Besides acetic acid, anyother liquid chemical substances or solutions may be sprayed or vaporized and applied to the lead or within the lead chamber, as hereinbefore described.
I do not limit or confine myself to the particular parts or form of spraying apparatus. These may be varied in many ways without departing from my invention.
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-
l. The process above described of applying acetic acid to comminuted lead deposited in the bottom of gastight chambers for making white lead, which consists in subdividing and spraying the acetic acid on the lead by forcing therethrough a current of air or 2. In the manufacture of white lead, the process above described of spraying acetic acid upon lead by impinging upon it a counter-current of air or gas, for the purpose of distributing it in the form of a fine mist about the comminuted particles of lead.
3. The process of simultaneously applying carbonic-acid gas and acetic acid by forcing them together in counter-currents upon the subdivided lead in an air-tight chamber, as described.
4. The combination of an acid-pipe, B, and a gas-pipe, 0, having their discharging-channels at right angles to each other, as and for the purpose described.
R. F. HATFIELD.
Witnesses Gno. W. MABEE, ALEX. F. ROBERTS.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US109125A true US109125A (en) | 1870-11-08 |
Family
ID=2178599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US109125D Expired - Lifetime US109125A (en) | Improvement in the manufacture of white lead |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US109125A (en) |
-
0
- US US109125D patent/US109125A/en not_active Expired - Lifetime
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