US442335A - Process of treating asbestus - Google Patents
Process of treating asbestus Download PDFInfo
- Publication number
- US442335A US442335A US442335DA US442335A US 442335 A US442335 A US 442335A US 442335D A US442335D A US 442335DA US 442335 A US442335 A US 442335A
- Authority
- US
- United States
- Prior art keywords
- asbestus
- treating
- acid
- action
- soluble
- 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
- 238000000034 method Methods 0.000 title description 16
- 210000000188 Diaphragm Anatomy 0.000 description 10
- 239000002253 acid Substances 0.000 description 8
- 239000004744 fabric Substances 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 239000000470 constituent Substances 0.000 description 4
- 235000011167 hydrochloric acid Nutrition 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000005591 charge neutralization Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001264 neutralization Effects 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 235000011149 sulphuric acid Nutrition 0.000 description 2
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/0313—Organic insulating material
- H05K1/032—Organic insulating material consisting of one material
- H05K1/0346—Organic insulating material consisting of one material containing N
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C15/00—Surface treatment of glass, not in the form of fibres or filaments, by etching
Definitions
- This invention is a process of treating asbestus designed for use in the manufacture 1 or composition of diaphragms for galvanic batteries, electrolytic cells, and similar purposes.
- Asbestus board as it comes in the market, is not suited for these purposes, for it contains various constituent compounds which, particularly in electrolytic cells, are
- the process which forms the subject of my present invention is designed to free the asbestus or asbestus board from these soluble or decomposable elements, so that when made in or used as a diaphragm it will be a good conductor or electrolyte, and for this purpose I treat the asbestus as follows: I first subject it to the action of an acidsuch 0 as sulphuric or muriatic acid, and preferably the latter-until the objectionable elements are neutralized or partly removed and partly rendered soluble, and then washing it well in fresh Water. I generally repeat this process 5 one or more times and finally subject the mass to pressure.
- an acid such 0 as sulphuric or muriatic acid
- ⁇ Vhat I claim is- 1.
- the process of preparing asbestus for electrical diaphragms which consists in exposing asbestus board or cloth to the action of an acid, then washing out the soluble parts, and then compressing it, as set forth.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Cosmetics (AREA)
Description
UNITED STATES PATENT OFFICE.
ISAIAH II. ROBERTS, OF BROOKLYN, ASSIGNOR OF ONE-HALF TO THOMAS II. MCGRAIV, OF POUGHKEEPSIE, NEW YORK.
PROCESS OF TREATING ASBESTUS.
SPECIFICATION forming part of Letters Patent No. 442,335, dated December 9, 1890. Application filed March 14, 1889= Renewed October 22, 1890. Serial No. 368,973. (No specimens.)
To all whom it may concern:
Be it known that I, ISAIAH L. ROBERTS, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented a new and useful Process of Treating Asbestus, of which the following is a specification.
This invention is a process of treating asbestus designed for use in the manufacture 1 or composition of diaphragms for galvanic batteries, electrolytic cells, and similar purposes. Asbestus board, as it comes in the market, is not suited for these purposes, for it contains various constituent compounds which, particularly in electrolytic cells, are
2o insula ing bubbles of gas, loses to a greater or less extent its conducting and electrolytic qualities. The process which forms the subject of my present invention is designed to free the asbestus or asbestus board from these soluble or decomposable elements, so that when made in or used as a diaphragm it will be a good conductor or electrolyte, and for this purpose I treat the asbestus as follows: I first subject it to the action of an acidsuch 0 as sulphuric or muriatic acid, and preferably the latter-until the objectionable elements are neutralized or partly removed and partly rendered soluble, and then washing it well in fresh Water. I generally repeat this process 5 one or more times and finally subject the mass to pressure.
I find it convenient to make the asbestus up into the form of a diaphragm first and then treat it, and in carrying out the invention in this way I proceed as follows:
I cut out two pieces of asbestus board of the desired dimensions and lay them on opposite sides of a piece of asbestus cloth of about the same shape. I then sew or fasten them up in a covering or bag of cotton cloth or the like. I then expose the whole for about twenty-four hours to the action of muriat-ic acid of about 12 Baum. I then squeeze or roll them and again treat them with the acid. I then roll and knead the bag in fresh water until the salts or soluble portions resulting from the action of the acid are thoroughly washed out. The bag is finally subjected to pressure to free it of surplus moisture and gas and to reduce its bulk.
\Vhat I claim is- 1. The process of preparing asbestus for electrical diaphragms, which consists in exposing asbestus board or cloth to the action of an acid, then washing out the soluble parts, and then compressing it, as set forth.
2. The process of preparing asbestus for electrical diaphragms by the removal or neutralization of its soluble or decomposable constituents, which consists in exposing it to the action of dilute muriatic acid, washing it with water, and compressing it, as herein set forth.
ISAIAH L. ROBERTS. "itnesses:
RoBr. F. GAYLORD, PARKER W. PAGE.
Publications (1)
Publication Number | Publication Date |
---|---|
US442335A true US442335A (en) | 1890-12-09 |
Family
ID=2511230
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US442335D Expired - Lifetime US442335A (en) | Process of treating asbestus |
Country Status (1)
Country | Link |
---|---|
US (1) | US442335A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2739869A (en) * | 1952-07-19 | 1956-03-27 | Electro Manganese Corp | Removing deposits from diaphragms employed in manganese electrowinning |
US3914184A (en) * | 1973-10-17 | 1975-10-21 | Us Air Force | Method for converting crysotile asbestos |
US4105533A (en) * | 1975-06-12 | 1978-08-08 | Agfa-Gevaert N.V. | Electrodialysis cell and method for producing cationic permeable membranes used therein |
-
0
- US US442335D patent/US442335A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2739869A (en) * | 1952-07-19 | 1956-03-27 | Electro Manganese Corp | Removing deposits from diaphragms employed in manganese electrowinning |
US3914184A (en) * | 1973-10-17 | 1975-10-21 | Us Air Force | Method for converting crysotile asbestos |
US4105533A (en) * | 1975-06-12 | 1978-08-08 | Agfa-Gevaert N.V. | Electrodialysis cell and method for producing cationic permeable membranes used therein |
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