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USE OF NORMAL PROPYL BROMIDE SOLVENTS FOR EXTRACTION …

USE OF NORMAL PROPYL BROMIDE SOLVENTS FOR EXTRACTION AND RECOVERY OF ASPHALT CEMENTS By M. Stroup-Gardiner Assistant Professor Civil Engineering Auburn University, Alabama J.W. Nelson Research Assistant Civil Engineering Auburn University, Alabama NCAT Report 00-06 November 2000-i-DISCLAIMER The contents of this report reflect the views of the authors who are solely responsible for the facts ...

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Use of normal propyl bromide solvents for extraction and ...

Four normal propyl bromide (nPB) solvents were evaluated for use as chlorinated solvent replacements in typical hot mix asphalt (HMA) extraction and recovery processes. The experimental design included one method of extraction (centrifuge), one method of recovery (Rotavapor), five solvents (TCE and four nPB products), and six combinations of asphalts and aggregates (PG 46-34, PG 64-22, PG 76 ...

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Use of n Propyl Bromide Solvents for Extraction and ...

2001-09-01· Centrifuge extraction and Rotavapor recovery were used to determine the effect of solvent type (trichloroethylene and four n-propyl bromide products) on recovered asphalt binder properties. Mix variables included three binders mixed with each of two aggregate sources (one gradation). When recovered binder properties were compared to the original binder properties, the trichloroethylene solvent ...

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Use Of Normal Propyl Bromide Solvents For Extraction And ...

Use Of Normal Propyl Bromide Solvents For Extraction And Recovery Free PDF eBooks. Posted on July 07, 2017. use of normal propyl bromide solvents for extraction and recovery of Nov 6, 2000 ... Four normal propyl bromide solvents were evaluated for use as ... in typical hot mix asphalt (HMA) extraction and recovery processes. rep00-06.pdf. Read/Download File Report Abuse. Selection of an ...

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Use of n Propyl Bromide Solvents for Extraction and ...

2001-01-12· Use of n-Propyl Bromide Solvents for Extraction and Recovery of Asphalt Cements Volume 29, Issue 5 (September 2001) ... Fourier transform infrared analysis showed that this same product also seemed to inhibit or actually limit normal hear-related changes. Overall, the data indicate that n-propyl bromide solvents can be used as direct replacements for the chlorinated solvents historically used ...

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Use of n-Propyl Bromide Solvents for Extraction and ...

Request PDF | Use of n-Propyl Bromide Solvents for Extraction and Recovery of Asphalt Cements | Centrifuge extraction and Rotavapor recovery were used to determine the effect of solvent type ...

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NCAT Report 00-06 USE OF NORMAL PROPYL BROMIDE …

Corpus ID: 15398413. NCAT Report 00-06 USE OF NORMAL PROPYL BROMIDE SOLVENTS FOR EXTRACTION AND RECOVERY OF ASPHALT CEMENTS @inproceedings{StroupGardiner2008NCATR0, title={NCAT Report 00-06 USE OF NORMAL PROPYL BROMIDE SOLVENTS FOR EXTRACTION AND RECOVERY OF ASPHALT CEMENTS}, author={M. Stroup-Gardiner}, year={2008} }

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Use of n Propyl Bromide Solvents for Extraction and ...

2001-09-01· Centrifuge extraction and Rotavapor recovery were used to determine the effect of solvent type (trichloroethylene and four n-propyl bromide products) on recovered asphalt binder properties. Mix variables included three binders mixed with each of two aggregate sources (one gradation). When recovered binder properties were compared to the original binder properties, the trichloroethylene solvent ...

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Use Of Normal Propyl Bromide Solvents For Extraction And ...

Use Of Normal Propyl Bromide Solvents For Extraction And Recovery Free PDF eBooks. Posted on July 07, 2017. use of normal propyl bromide solvents for extraction and recovery of Nov 6, 2000 ... Four normal propyl bromide solvents were evaluated for use as ... in typical hot mix asphalt (HMA) extraction and recovery processes. rep00-06.pdf. Read/Download File Report Abuse. Selection of an ...

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USE OF NORMAL PROPYL BROMIDE SOLVENTS FOR EXTRACTION AND ...

Four normal propyl bromide (nPB) solvents were evaluated for use as chlorinated solvent replacements in typical hot mix asphalt (HMA) extraction and recovery processes. The experimental design included one method of extraction (centrifuge), one method of recovery (Rotavapor), five solvents (TCE and four nPB products), and six combinations of asphalts and aggregates (PG 46-34, PG 64-22, PG 76 ...

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Use of n Propyl Bromide Solvents for Extraction and ...

2001-01-12· Use of n-Propyl Bromide Solvents for Extraction and Recovery of Asphalt Cements Volume 29, Issue 5 (September 2001) ... Fourier transform infrared analysis showed that this same product also seemed to inhibit or actually limit normal hear-related changes. Overall, the data indicate that n-propyl bromide solvents can be used as direct replacements for the chlorinated solvents historically used ...

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Use of n-Propyl Bromide Solvents for Extraction and ...

Request PDF | Use of n-Propyl Bromide Solvents for Extraction and Recovery of Asphalt Cements | Centrifuge extraction and Rotavapor recovery were used to determine the effect of solvent type ...

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Evaluation of asphalt cement extraction and recovery ...

Use of normal propyl bromide solvents for extraction and recovery of asphalt cements [PDF - 282.51 KB] Published Date: 2000-11-01 ... Abstract: Four normal propyl bromide (nPB) solvents were evaluated for use as chlorinated solvent replacements in typical hot mix asphalt (HMA) extraction and r... File Type: [PDF - …

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NCAT Report 00-06 USE OF NORMAL PROPYL BROMIDE SOLVENTS ...

This report does not constitute a standard, specification, or regulation.-ii-ABSTRACT Four normal propyl bromide solvents were evaluated for use as chlorinated solvent replacements in typical hot mix asphalt (HMA) extraction and recovery processes. The experimental design included one method of extraction (centrifuge), one method of recovery (Rotavapor), five solvents (TCE and four nPB ...

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Waste N-Propyl Bromide Solvent - Regulated Material ...

MnDOT Materials Laboratories use N-Propyl Bromide solvent for asphalt extraction for aggregate counts. The purpose of this guidance document is to assist in determining the appropriate management practices for the waste solvent and asphalt sludge produced following the cleaning process. N-Propyl Bromide solvent has a flashpoint above 140° F and does not contain certain MPCA listed solvents ...

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METHOD OF TEST FOR QUANTITATIVE EXTRACTION OF ASPHALT ...

Note 1) or normal propyl bromide (nPB) and the extract is corrected for mineral fines content using high speed centrifuge or ashing methods. Note 1: The Ministry of Transportation of Ontario plans to discontinue the use of chlorinated solvents for extraction testing in Quality Assurance and Referee laboratories starting April 1, 2010. 1.2 The extracted aggregate is washed to remove fines ...

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Quantitative Extraction of Asphalt Binder from Asphalt ...

2019-08-01· 6.4 normal-Propyl Bromide (nPB), conforming to Specification D6368 Warning—See Section 7 ... 9.2.3 TCE, nPB, or toluene solvents can be used with this extraction method..... 9.2.4 Place the bowl containing the test portion onto the extraction apparatus..... Cover the test portion in the bowl with solvent and allow sufficient time for the solvent to disintegrate the test portion (not over 1 h ...

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Use of n Propyl Bromide Solvents for Extraction and ...

2001-01-12· Use of n-Propyl Bromide Solvents for Extraction and Recovery of Asphalt Cements Volume 29, Issue 5 (September 2001) ... Fourier transform infrared analysis showed that this same product also seemed to inhibit or actually limit normal hear-related changes. Overall, the data indicate that n-propyl bromide solvents can be used as direct replacements for the chlorinated solvents historically used ...

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Experimental mixes on Richmond-Petersburg Turnpike, 1985.

Use of normal propyl bromide solvents for extraction and recovery of asphalt cements [PDF - 282.51 KB] Published Date: 2000-11-01 Abstract: Four normal propyl bromide (nPB) solvents were evaluated for use as chlorinated solvent replacements in typical hot mix asphalt (HMA) extraction and r... File Type: [PDF - 282.51 KB] File Type: [PDF - 282.51 KB] Investigation of the use of recycled polymer ...

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Fuel Properties of Pongamia (Milletia pinnata) Seeds and ...

Use of normal propyl bromide solvents for extraction and recovery of asphalt cements [PDF - 282.51 KB] Published Date: 2000-11-01 ... Abstract: Four normal propyl bromide (nPB) solvents were evaluated for use as chlorinated solvent replacements in typical hot mix asphalt (HMA) extraction and r... File Type: [PDF - …

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N-Propyl Bromide (nPB) | Reliance Specialty Products

Most experienced staff of experts in the n-propyl bromide solvent industry. Many of our staff were involved in the research and pioneering of n-propyl bromide and have over 50 years of combined research, and direct practical field experience. We are experts in vapor degreasing, ultrasonic cleaning, extraction, and flushing techniques, as well as deposition and carrier applications. Our ...

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Asphalt Extraction and Recovery Procedures

(TCE), normal propyl bromide (nPb), or methylene chloride using the extraction equipment applicable to the particular method. – The asphalt binder content is calculated by difference from the mass of extracted aggregate, moisture content, if determined, and mineral matter in the effluent (binder-solvent solution).

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Extraction and recovery of asphalt binder: a literature ...

2019-11-18· The most commonly used solvents n-propyl bromide and chlorinated solvents, while being reusable, both had reported issues of ineffectiveness as well as major concerns about user safety. Bio-sourced solvents were found to be seldom used and required higher quantities. The study concluded that more research needed to be done in developing solvents. A literature review was conducted on the main ...

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N-propyl Bromide | Products & Suppliers | Engineering360

N-Propyl Bromide is the latest alternative to trichloethylene for asphalt extraction applications. N-Propyl Bromide has no flash point and is ideal for ASTM D 2172 , Quantitative Extraction Type: Solvent; Supplier Catalog Go To Website View Specs Organic Chemicals - Biodegradable Extraction Solvent Excel Clean, 5-Gal -- HM-124E Supplier: Gilson Company, Inc. Description: used in vacuum ...

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n Propyl Bromide Carcinogen - nPB Solvent Replacements

2016-09-01· September 1, 2016 / in N-Propyl Bromide / by Industrial Degreasers. The U.S. Department of Health’s National Toxicology Program (NTP) identifies nPB as a solvent that is “reasonably anticipated to be a human carcinogen” — a finding based on laboratory experiments that expose mice to nBP and measure the results on the physiology of the ...

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Lab Corner – Spring 2009 Extraction solvents | Asphalt ...

Commercial suppliers of the two most commonly used halogenated extraction solvents, trichloroethylene and n-propyl bromide add an acid scavenger to stabilize their solvents. Without the acid scavenger these solvents will generate hydrochloric or hydrobromic acids which can have a corrosive effect on equipment (such as centrifugal extractors) and which can artificially stiffen the binder during ...

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1-Bromopropane - Wikipedia

1-Bromopropane ( n-propylbromide or nPB) is an organobromine compound with the chemical formula CH 3 CH 2 CH 2 Br. It is a colorless liquid that is used as a solvent. It has a characteristic hydrocarbon odor. Its industrial applications increased dramatically in the 21st century.

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