Kerr-McGee

Trona SodaMsh and the Argus Facility, Bull. 1400, Kerr-McGee Chemical Corp., 1981. 

Producers have developed specific cell configurations to optimise electricity consumption, cell capital, and operating costs. Pacific Engineering Corp., Kerr-McGee Chemical Corp., Chedde Pechiney, Cardox Corp., Electrochemie Turgi, American Potash and Chemical, and I. G. Earbenindustrie each has a unique cell design. 

U.S. production of titanium dioxide in 1993 was 1.16 x 10 t, an increase of about 2.2% over 1992 (15). The annual production increased on an average of 5.4% in the 1980s (16). There are approximately 50 world producers of titanium dioxide pigments. The world s leading suppHers are Du Pont (- 24% worldwide share), Tioxide (the U.K. Co. owned by ICI), and SCM Corp. Other producers include Kerr McGee, Tiwest, Kemira Oy, Kronos, and Bayer AG (see Titanium compounds, inorganic). 

Analysis for boron, haUde, free halogen, and siUcon is carried out by standard methods following hydrolysis of BX (11,79). Specifications for BCl and BBr supphed by Kerr-McGee Corp. are given in Table 2. 

L. E. Rykken, Eithium Production from Searles Valley, U.S. Geological Survey Proceedings Paper, Kerr-McGee, Trona, Calif., 1976. 

Kerr McGee Hamilton, Miss. 135 Canadian Oxy Squamish, B.C. 14... 

Unpubhshed information from Kerr-McGee Chemical Corp., Oklahoma City, Okla.,June 1, 1992. 

FIG. 15-29 Kerr-McGee multistage mixer-settler, a) and (h) For uranium, (c) For vanadium extraction. 

FIG. 22-23 Schematic (iagram of the Kerr-McGee ROSE process. 

JOHN A. QUINN, University of Peimsylvania KENNETH J. RICHARDS, Kerr-McGee Corporation JOHN P. SACHS, Horsehead Industries, Inc. 

This paper will concentrate on factors which lead to high conversion at short time. R.H. Heck, T.O. Mitchell, T.R. Stein and M.J. Dabkowski discuss the relative ease of conversion of short and long contact time SRCs to higher quality products. C.J. Kulik, W.C. Rovesti and H.E. Liebowitz discuss some new leads presently being explored at the Wilsonville PDU in which short contact time liquefaction is being coupled with rapid product isolation via the Kerr-McGee Critial Solvent Deashing Process. 

In order to overcome these problems, the flow schemes as shown in Figures 1 and 2 were developed. These incorporate the use of Kerr-McGee Corporation s Critical Solvent Deashing and Fractionation Process (CSD) for recovery of the SRC. The Kerr-McGee Process adds extra flexibility since this process can recover heavy solvent for recycle, which is not recoverable by vacuum distillation. EPRI contracted with Conoco Coal Development Company (CCDC) and Kerr-McGee Corporation in 1977-1978 to test these process concepts on continuous bench-scale units. A complementary effort would be made at the Wilsonville Pilot Plant under joint sponsorship by EPRI, DOE, and Kerr-McGee Corporation. This paper presents some of the initial findings. 

Paralleling the work at CCDC were the critical solvent deashing and fractionation studies done on a continuous bench-scale unit at Kerr-McGee Technical Center, Oklahoma City, Oklahoma, Figure 3. The Kerr-McGee Critical Solvent Deashing and Fractionation Process has been previously discussed (3). 

In work prior to this program, Kerr-McGee demonstrated that extremely rapid solids separation (deashing) on the order of 30 to 60 times faster than a conventional deasphalting unit and high deashing efficiencies producing less than 0.1 wt% ash on SRC product could be achieved. In addition, it has been demonstrated that the SRC could be fractionated into multiple residual fractions. 

The work involved the integration of the SRC operations at Kerr-McGee with those at CCDC where the concept of recycling certain residual fractions back to liquefaction would be tested. This program involved repeated product shipments between the respective laboratories. The data presented in this paper will focus on the work done in this latter phase of the program. 

CSD [Critical solvent deashing] A process for removing insoluble material from coal before liquifaction, using toluene as a solvent under subcritical conditions. Used in the Kerr-McGee and National Coal Board processes. 

HAT [Homogeneous alkylation technology] An alkylation process using an alkyl aluminium catalyst. Developed by Kerr-McGee in 1994. 

ROSE (1) [Residuum Oil Supercritical Extraction] A process for extracting asphaltenes and resins from petroleum residues, using supercritical propane or isobutane as the extractant. Developed by Kerr-McGee Corporation in 1979 and sold to the MW Kellog Company in 1995, at which time 25 units had been licensed. 

Kerr-Mcgee Refining Corp. Wynnewood, OK 1,000-9.999 Import as a formulation component... 

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