220 Matching Results

Search Results

Advanced search parameters have been applied.
in subjects: "Reagents"  
Results: 1 - 24 next
open access

Platinum(II)-Catalyzed Ethylene Hydrophenylation: Switching Selectivity between Alkyl- and Vinylbenzene Production

Description: Article discussing platinum(II)-catalyzed ethylene hydrophenylation and the influence of dipyridyl chelate ring size on catalyst activity and longevity.
Date: unknown
Creator: McKeown, Bradley A.; Gonzalez, Hector Emanuel; Friedfeld, Max R.; Brosnahan, Anna M.; Gunnoe, T. Brent; Cundari, Thomas R., 1964- et al.
Item Type: Refine your search to only Article
Partner: UNT College of Arts and Sciences
open access

Decontamination of Portable Instruments

Description: The decontamination of portable instruments by the Calibration Unit has presented a problem for some time. Most of the contamination is in the 100 to 500 c/m or 500 to 2000 d/m range. Higher levels of contamination can usually be reduced to these levels, but further cleaning proves quite difficult
Date: May 22, 1953
Creator: Unruh, C. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Decontamination of ORNL Purex Pilot Plant

Description: From abstract: "This report describes the decontamination of Oak Ridge National Laboratory Purex Pilot Plant facilities and presents an appraisal of the decontaminating techniques and reagents which were employed."
Date: May 5, 1952
Creator: Wood, H. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Developing the Manufacturing Process for Hylene MP Curing Agent

Description: This report details efforts to scale-up and re-establish the manufacturing process for the curing agent known as Hylene MP. First, small scale reactions were completed with varying conditions to determine key drivers for yielding high quality product. Once the optimum conditions were determined on the small scale, the scaled-up process conditions were determined. New equipment was incorporated into the manufacturing process to create a closed production system and improve chemical exposure cont… more
Date: February 16, 2009
Creator: Eastwood, Eric
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

CRADA Final Report-Dual Manifold System for Arraying Biomolecules

Description: The objective of this CRADA is to establish a new approach to fluid transfer and array construction. This new approach will involve a high-speed, multiplexed fluid distribution valve and ink jet valves. It will enable the parallel handling of multiple reagents for a system that will have multiple applications in addition to the high-speed construction of microarrays. The primary tasks involve proof of principle experiments aimed at establishing key components of the technology and evaluating va… more
Date: May 8, 2001
Creator: Doktycz, M.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Method for Simultaneous Use of a Single Additive for Coal Flotation, Dewatering, and Reconstitution

Description: A single dose of additive contributes to three consecutive fine coal unit operations, i.e., flotation, dewatering and reconstitution, whereby the fine coal is first combined with water in a predetermined proportion so as to formulate a slurry. The slurry is then mixed with a heavy hydrocarbon-based emulsion in a second predetermined proportion and at a first predetermined mixing speed and for a predetermined period of time. The conditioned slurry is then cleaned by a froth flotation method to f… more
Date: November 9, 1993
Creator: Wen, Wu-Wey; Gray, McMahan L. & Champagne, Kenneth J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
open access

CHEMICAL SAFETY: ASKING THE RIGHT QUESTIONS

Description: Recent reports have shown that, despite efforts to the contrary, chemical accidents continue to occur at an unacceptable rate and there is no evidence that this rate is decreasing. Based on this observation, one can conclude that previous analyses have not accurately identified and implemented appropriate fixes to eliminate identified root causes for chemical events. Based on this, it is time to reevaluate chemical accident data with a fresh eye and determine (a) what corrective actions have al… more
Date: August 5, 2008
Creator: Simmons, F
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Micro-agglomerate flotation for deep cleaning of coal. Quarterly progress report, July 1--September 30, 1993

Description: The development of practical technologies for the deep cleaning of coal has been seriously hampered by the problems of carrying out efficient coal/mineral separations at the very fine sizes (often finer than 1 {mu}m) needed to achieve adequate liberation of the mineral matter from the coal matrix. It is generally recognized that surface-based separation processes such as froth flotation or selective agglomeration offer considerable potential for such applications but there remain many problems … more
Date: October 1, 1993
Creator: Chander, S. & Hogg, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Improvement of storage, handling, and transportability of fine coal. Quarterly technical progress report No. 7, July 1, 1995--September 30, 1995

Description: The Mulled Coal process was developed as a means of overcoming the adverse handling characteristics of wet fine coal without thermal drying. The process involves the addition of a low cost harmless reagent to wet fine coal using off-the-shelf mixing equipment. Based on laboratory- and bench-scale testing, Mulled Coal can be stored, shipped, and burned without causing any of the plugging, pasting, carryback and freezing problems normally associated with wet coal. The objectives of this project a… more
Date: August 22, 1996
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A Method for Detecting Disulfide Interchanges in Protein Modification Studies

Description: The work to be described here evolved from studies we were making on the correlation of protein structure and function. In order to determine the role of the amino acid residues in the action of enzymes, the most successful method developed so far is to modify residues by appropriate reagents and then correlate the modification with changes in the properties of the enzyme. Various methods of modification have been developed in many laboratories but in ll these studies it is of course assumed th… more
Date: unknown
Creator: Koshand, D. E., Jr. & Mozersky, S. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Micro-agglomerate flotation for deep cleaning of coal. Quarterly progress report, September 30--December 31, 1992

Description: We are investigating the use of a hybrid process - Micro-agglomerate flotation - which is a combination of oil-agglomeration and froth flotation. The basic concept is to use small quantities of oil to promote the formation of dense micro-agglomerates with minimal entrapment of water and mineral particles, and to use froth flotation to extract these micro-agglomerates from the water/dispersed-mineral phase. Since the floating units are agglomerates (about 30--50 {mu}m in size) rather than indivi… more
Date: January 1993
Creator: Chander, S. & Hogg, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Alternative Fuels and Chemicals From Synthesis Gas Technical Progress Report: Number 30

Description: The overall objectives of this program are to investigate potential technologies for the conversion of synthesis gas to oxygenated and hydrocarbon fuels and industrial chemicals, and to demonstrate the most promising technologies at DOE's LaPorte, Texas, Slurry Phase Alternative Fuels Development Unit (AFDU). The program will involve a continuation of the work performed under the Alternative Fuels from Coal-Derived Synthesis Gas Program and will draw upon information and technologies generated … more
Date: March 31, 2002
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Alternative Fuels and Chemicals From Synthesis Gas Technical Progress Report: Number 26

Description: The overall objectives of this program are to investigate potential technologies for the conversion of synthesis gas to oxygenated and hydrocarbon fuels and industrial chemicals, and to demonstrate the most promising technologies at DOE's LaPorte, Texas, Slurry Phase Alternative Fuels Development Unit (AFDU). The program will involve a continuation of the work performed under the Alternative Fuels from Coal-Derived Synthesis Gas Program and will draw upon information and technologies generated … more
Date: March 31, 2001
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

USE OF CHEMICAL INVENTORY ACCURACY MEASUREMENTS AS LEADING INDICATORS

Description: Chemical safety and lifecycle management (CSLM) is a process that involves managing chemicals and chemical information from the moment someone begins to order a chemical and lasts through final disposition(1). Central to CSLM is tracking data associated with chemicals which, for the purposes of this paper, is termed the chemical inventory. Examples of data that could be tracked include chemical identity, location, quantity, date procured, container type, and physical state. The reason why so mu… more
Date: February 10, 2011
Creator: Kuntamukkula, M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Micro-Agglomerate Flotation for Deep Cleaning of Coal. Quarterly Progress Report, April 1--June 30, 1993

Description: The goals of this research program are to demonstrate the technical and economic feasibility of a micro-agglomerate flotation process and to establish the essential criteria for reagent selection and system design and operation. The development of practical technologies for the deep cleaning of coal has been seriously hampered by the problems of carrying out efficient coal/mineral separations at the very fine sizes (often finer than 10 {mu}m) needed to achieve adequate liberation of the mineral… more
Date: July 1993
Creator: Chander, S. & Hogg, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Emergency Planning and Community Right-To-Know Act. Section 312 Tier Two report forms

Description: As required by Right-to-Know Laws and Pollution Prevention Requirements, the Y-12 Plant staff is submitting an unclassified version of the Tier-Two Forms. This report contains data for CY 1996 for all hazardous chemicals stored at the Y-12 Plant in quantities equal to or greater than 10,000 pounds and all extremely hazardous substances stored in quantities equal to or greater than 500 pounds or the threshold planning quantity, whichever is lower. Also included with this submittal is a key to th… more
Date: February 1, 1997
Creator: Evans, R. A. & Martin, K. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Emergency Planning and Community Right-To-Know Act. Section 312 Tier Two report forms

Description: As required by Right-to-Know Laws and Pollution Prevention Requirements, the Y-12 Plant staff is submitting an unclassified version of the Tier-Two Forms. This report contains data for CY 1997 for all hazardous chemicals stored at the Y-12 Plant in quantities equal to or greater than 10,000 pounds and all extremely hazardous substances stored in quantities equal to or greater than 500 pounds or the threshold planning quantity, whichever is lower. Also included with this submittal is a key to th… more
Date: February 1, 1998
Creator: Evans, R. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Recommendations for the addition of standard quantities of chemicals in certain reduction operations in the 234-5 Building

Description: This report lists recommendations to be adopted in the process for the reduction of plutonium fluorides by calcium metal in order to save time and money in the Plutonium Finishing Plant. These recommendations regard the standardization of procedures for batch operations. Instead of weighing chemicals to be added to each PuF{sub 4} batch, standard quantities of iodine and calcium would be prepared and stored for later use. The reagents would be added to PuF{sub 4} batches in the 410--430 gram ra… more
Date: September 17, 1951
Creator: Desposato, F. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

New aminating reagents forthe synthesis of 1,3,5-Triamino-2,4,6-Trinitrobenzene (TATB) and other insensitive energetic materials

Description: We are investigating the amination of electrophilic aromatic systems through the use of Vicarious Nucleophilic Substitution (VNS) chemistry. This research has led to a new synthesis of 1,3,5-Triamino-2,4,6-trinitrobenzene (TATB) and 1,3-diamino-2,4,6-trinitrobenzene (DATB) which uses 2,4,6-trinitroaniline (picramide) or 1,3,5-trinitrobenzene as starting materials. We also describe the development of a new class of VNS aminating reagents based on quarternary hydrazinium halides. 1,1,1-Trimethylh… more
Date: September 19, 1995
Creator: Pagoria, P. F.; Mitchell, A. R. & Schmidt, R. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Emergency Planning and Community Right-To-Know Act. Section 312 Tier Two report forms

Description: As required by Right-to-Know Laws and Pollution Prevention Requirements, the Y-12 Plant staff is submitting an unclassified version of the Tier-Two Forms. This report contains data for CY 1997 for all hazardous chemicals stored at the Y-12 Plant in quantities equal to or greater than 10,000 pounds and all extremely hazardous substances stored in quantities equal to or greater than 500 pounds or the threshold planning quantity, whichever is lower. Also included with this submittal is a key to th… more
Date: February 1, 1998
Creator: Evans, R. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen